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Hou J, Ran Q, Wang Z, Zhang D, Wang Q, Xu Y, Pan H, Sheng D, Xia L, Xu W. Advanced superhydrophobic polylactic acid fibers with high porosity and biodegradability for efficient solvent recovery. Int J Biol Macromol 2024; 279:135534. [PMID: 39349336 DOI: 10.1016/j.ijbiomac.2024.135534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 08/27/2024] [Accepted: 09/09/2024] [Indexed: 10/02/2024]
Abstract
The conventional oil-absorbing materials utilized for addressing oil and organic solvent pollution are plagued by the issue of secondary pollution. In this study, biodegradable porous polylactic acid (PLA) fiber materials were prepared using centrifugal spinning technology, with PLA and polyvinyl butyral (PVB) as raw materials. PVB was utilized as a pore-forming agent to fabricate multi-layered porous PLA fiber materials. When the content of PVB in the spinning solution was 14 %, the porous PLA fibers exhibited the maximum specific surface area of 60.7 m2/g and a porosity of up to 85.4 %, interior of the fiber contained numerous mesopores. Additionally, the porous PLA fibers demonstrated excellent superhydrophobic oil absorption properties, with a water static contact angle of 137.8° and oil or organic solvent absorption capacities ranging from 10 to 17.7 g/g. Furthermore, porous PLA fiber materials exhibited outstanding biodegradability, with a degradation mass loss rate of 42.3-45.1 %. Therefore, superhydrophobic and oleophilic biomass-based PLA fiber materials prepared in centrifugal spinning show promising applications in the recovery of organic solvents and oily substances.
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Affiliation(s)
- Jun Hou
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Qi Ran
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Zilong Wang
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Danqing Zhang
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Qiqi Wang
- College of Material Science and Engineering, Wuhan Textile University, China
| | - Yi Xu
- College of Material Science and Engineering, Wuhan Textile University, China
| | - Heng Pan
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China; School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Dan Sheng
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| | - Liangjun Xia
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| | - Weilin Xu
- State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
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2
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He M, Hsu YI, Uyama H. Superior sequence-controlled poly(L-lactide)-based bioplastic with tunable seawater biodegradation. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134819. [PMID: 38850940 DOI: 10.1016/j.jhazmat.2024.134819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Developing superior-performance marine-biodegradable plastics remains a critical challenge in mitigating marine plastic pollution. Commercially available biodegradable polymers, such as poly(L-lactide) (PLA), undergo slow degradation in complex marine environments. This study introduces an innovative bioplastic design that employs a facile ring-opening and coupling reaction to incorporate hydrophilic polyethylene glycol (PEG) into PLA, yielding PEG-PLA copolymers with either sequence-controlled alternating or random structures. These materials exhibit exceptional toughness in both wet and dry states, with an elongation at break of 1446.8% in the wet state. Specifically, PEG4kPLA2k copolymer biodegraded rapidly in proteinase K enzymatic solutions and had a significant weight loss of 71.5% after 28 d in seawater. The degradation primarily affects the PLA segments within the PEG-PLA copolymer, as evidenced by structural changes confirmed through comprehensive characterization techniques. The seawater biodegradability, in line with the Organization for Economic Cooperation and Development 306 Marine biodegradation test guideline, reached 72.63%, verified by quantitative biochemical oxygen demand analysis, demonstrating rapid chain scission in marine environments. The capacity of PEG-PLA bioplastic to withstand DI water and rapidly biodegrade in seawater makes it a promising candidate for preventing marine plastic pollution.
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Affiliation(s)
- Manjie He
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yu-I Hsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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3
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Lavagnolo MC, Poli V, Zampini AM, Grossule V. Biodegradability of bioplastics in different aquatic environments: A systematic review. J Environ Sci (China) 2024; 142:169-181. [PMID: 38527882 DOI: 10.1016/j.jes.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/08/2023] [Accepted: 06/08/2023] [Indexed: 03/27/2024]
Abstract
Bioplastics were first introduced as environmentally friendly materials, with properties similar to those of conventional plastics. A bioplastic is defined as biodegradable if it can be decomposed into carbon dioxide under aerobic degradation, or methane and CO2 under anaerobic conditions, inorganic compounds, and new cellular biomass, by the action of naturally occurring microorganisms. This definition however does not provide any information on the environmental conditions, timescale and extent at which decomposition processes should occur. With regard to the aquatic environment, recognized standards have been established to assess the ability of plastics to undergo biodegradation; however, these standards fail to provide clear targets to be met to allow labelling of a bioplastic as biodegradable. Moreover, these standards grant the user an extensive leeway in the choice of process parameters. For these reasons, the comparison of results deriving from different studies is challenging. The authors analysed and discussed the degree of biodegradability of a series of biodegradable bioplastics in aquatic environments (both fresh and salt water) using the results obtained in the laboratory and from on-site testing in the context of different research studies. Biochemical Oxygen Demand (BOD), CO2 evolution, surface erosion and weight loss were the main parameters used by researchers to describe the percentage of biodegradation. The results showed a large variability both in weight loss and BOD, even when evaluating the same type of bioplastics. This confirms the need for a reference range of values to be established with regard to parameters applied in defining the biodegradability of bioplastics.
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Affiliation(s)
- Maria Cristina Lavagnolo
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy.
| | - Valentina Poli
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy
| | - Anna Maria Zampini
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy
| | - Valentina Grossule
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy
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4
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Ghalandarzadeh A, Ganjali M, Hosseini M. Tailoring zirconia surface topography via femtosecond laser-induced nanoscale features: effects on osteoblast cells and antibacterial properties. Biomed Mater 2024; 19:055017. [PMID: 39016135 DOI: 10.1088/1748-605x/ad606f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 07/08/2024] [Indexed: 07/18/2024]
Abstract
The performance and long-term durability of dental implants hinge on the quality of bone integration and their resistance to bacteria. This research aims to introduce a surface modification strategy for zirconia implants utilizing femtosecond laser ablation techniques, exploring their impact on osteoblast cell behavior and bacterial performance, as well as the integral factors influencing the soft tissue quality surrounding dental implants. Ultrafast lasers were employed to craft nanoscale groove geometries on zirconia surfaces, with thorough analyses conducted using x-ray diffraction, scanning electron microscopy, atomic force microscopy, and water contact angle measurements. The study evaluated the response of human fetal osteoblastic cell lines to textured zirconia ceramics by assessing alkaline phosphatase activity, collagen I, and interleukin 1βsecretion over a 7 day period. Additionally, the antibacterial behavior of the textured surfaces was investigated usingFusobacterium nucleatum, a common culprit in infections associated with dental implants. Ciprofloxacin (CIP), a widely used antibacterial antibiotic, was loaded onto zirconia ceramic surfaces. The results of this study unveiled a substantial reduction in bacterial adhesion on textured zirconia surfaces. The fine biocompatibility of these surfaces was confirmed through the MTT assay and observations of cell morphology. Moreover, the human fetal osteoblastic cell line exhibited extensive spreading and secreted elevated levels of collagen I and interleukin 1βin the modified samples. Drug release evaluations demonstrated sustained CIP release through a diffusion mechanism, showcasing excellent antibacterial activity against pathogenic bacteria, includingStreptococcus mutans, Pseudomonas aeruginosa, andEscherichia coli.
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Affiliation(s)
- Arash Ghalandarzadeh
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, PO Box: 16846, Tehran, Iran
| | - Monireh Ganjali
- Biomaterials Group, Department of Nanotechnology & Advanced Materials, Materials and Energy Research Center, PO Box: 31787-316, Karaj, Iran
| | - Milad Hosseini
- Research Center for Advanced Materials, Faculty of Materials Engineering, Sahand University of Technology, PO Box: 51335-1996, Tabriz, Iran
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5
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Theobald B, Risani R, Donaldson L, Bridson JH, Kingsbury JM, Pantos O, Weaver L, Lear G, Pochon X, Zaiko A, Smith DA, Anderson R, Davy B, Davy S, Doake F, Masterton H, Audrezet F, Maday SDM, Wallbank JA, Barbier M, Greene AF, Parker K, Harris J, Northcott GL, Abbel R. An investigation into the stability and degradation of plastics in aquatic environments using a large-scale field-deployment study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170301. [PMID: 38272094 DOI: 10.1016/j.scitotenv.2024.170301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/18/2023] [Accepted: 01/18/2024] [Indexed: 01/27/2024]
Abstract
The fragmentation of plastic debris is a key pathway to the formation of microplastic pollution. These disintegration processes depend on the materials' physical and chemical characteristics, but insight into these interrelationships is still limited, especially under natural conditions. Five plastics of known polymer/additive compositions and processing histories were deployed in aquatic environments and recovered after six and twelve months. The polymer types used were linear low density polyethylene (LLDPE), oxo-degradable LLDPE (oxoLLDPE), poly(ethylene terephthalate) (PET), polyamide-6 (PA6), and poly(lactic acid) (PLA). Four geographically distinct locations across Aotearoa/New Zealand were chosen: three marine sites and a wastewater treatment plant (WWTP). Accelerated UV-weathering under controlled laboratory conditions was also carried out to evaluate artificial ageing as a model for plastic degradation in the natural environment. The samples' physical characteristics and surface microstructures were studied for each deployment location and exposure time. The strongest effects were found for oxoLLDPE upon artificial ageing, with increased crystallinity, intense surface cracking, and substantial deterioration of its mechanical properties. However, no changes to the same extent were found after recovery of the deployed material. In the deployment environments, the chemical nature of the plastics was the most relevant factor determining their behaviours. Few significant differences between the four aquatic locations were identified, except for PA6, where indications for biological surface degradation were found only in seawater, not the WWTP. In some cases, artificial ageing reasonably mimicked the changes which some plastic properties underwent in aquatic environments, but generally, it was no reliable model for natural degradation processes. The findings from this study have implications for the understanding of the initial phases of plastic degradation in aquatic environments, eventually leading to microplastics formation. They can also guide the interpretation of accelerated laboratory ageing for the fate of aquatic plastic pollution, and for the testing of aged plastic samples.
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Affiliation(s)
| | | | | | - James H Bridson
- Scion, Rotorua 3010, New Zealand; University of Canterbury, Christchurch 8140, New Zealand
| | - Joanne M Kingsbury
- Institute of Environmental Science and Research, Christchurch 8041, New Zealand
| | - Olga Pantos
- Institute of Environmental Science and Research, Christchurch 8041, New Zealand
| | - Louise Weaver
- Institute of Environmental Science and Research, Christchurch 8041, New Zealand
| | - Gavin Lear
- University of Auckland, Auckland 1010, New Zealand
| | - Xavier Pochon
- University of Auckland, Auckland 1010, New Zealand; Cawthron Institute, Nelson 7010, New Zealand
| | | | | | | | - Ben Davy
- Scion, Rotorua 3010, New Zealand
| | | | - Fraser Doake
- Institute of Environmental Science and Research, Christchurch 8041, New Zealand
| | - Hayden Masterton
- Institute of Environmental Science and Research, Christchurch 8041, New Zealand
| | - François Audrezet
- University of Auckland, Auckland 1010, New Zealand; Cawthron Institute, Nelson 7010, New Zealand
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6
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Zhu Y, Wang Z, Chen Z, Xin X, Gan W, Lai H, Lin C. Highly Stretchable, Biodegradable, and Recyclable Green Electronic Substrates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305181. [PMID: 37699749 DOI: 10.1002/smll.202305181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/22/2023] [Indexed: 09/14/2023]
Abstract
As a steady stream of electronic devices being discarded, a vast amount of electronic substrate waste of petroleum-based nondegradable polymers is generated, raising endless concerns about resource depletion and environmental pollution. With coupled reagent (CR)-grafted artificial marble waste (AMW@CR) as functional fillers, polylactic acid (PLA)-based highly stretchable biodegradable green composite (AMW@CR-SBGC) is prepared, with elongation at break up to more than 250%. The degradation mechanism of AMW@CR-SBGC is deeply revealed. AMW@CR not only contributed to the photodegradation of AMW@CR-SBGC but also significantly promoted the water degradation of AMW@CR-SBGC. More importantly, AMW@CR-SBGC showed great potential as sustainable green electronic substrates and AMW@CR-SBGC-based electronic skin can simulate the perception of human skin to strain signals. The outstanding programmable degradability, recyclability, and reusability of AMW@CR-SBGC enabled its application in transient electronics. As the first demonstration of artificial marble waste in electronic substrates, AMW@CR-SBGC killed three birds with one stone in terms of waste resourcing, e-waste reduction, and saving nonrenewable petroleum resources, opening up vast new opportunities for green electronics applications in areas such as health monitoring, artificial intelligence, and security.
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Affiliation(s)
- Yan Zhu
- School of Astronautics, Harbin Institute of Technology, Harbin, 150001, P. R. China
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Zhongmin Wang
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
| | - Zhenming Chen
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou, 542899, P. R. China
| | - Xiaozhou Xin
- School of Astronautics, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Weijiang Gan
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
| | - Huajun Lai
- Advanced Materials Industry Institute, Guangxi Academy of Sciences, 530007, Nanning, P. R. China
| | - Cheng Lin
- School of Astronautics, Harbin Institute of Technology, Harbin, 150001, P. R. China
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7
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Pellegrino R, Villani S, Spagnolo D, Carofalo I, Carrino N, Calcagnile M, Alifano P, Madaghiele M, Demitri C, Nitti P. Development of PVA Electrospun Nanofibers for Fabrication of Bacteriological Swabs. BIOLOGY 2023; 12:1404. [PMID: 37998003 PMCID: PMC10669574 DOI: 10.3390/biology12111404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/29/2023] [Accepted: 11/02/2023] [Indexed: 11/25/2023]
Abstract
In recent years, the enormous demand for swabs for clinical use has promoted their relevance and, consequently, brought the environmental issues due to their single use and lack of biodegradability to the attention of the healthcare industry. Swabs consist of a stick that facilitates their easy handling and manoeuvrability even in complex districts and an absorbent tip designed to uptake and release biological samples. In this study, we focused on the fabrication of an innovative biodegradable poly(vinyl alcohol) (PVA) nanofiber swab tip using the electrospinning technique. The innovative swab tip obtained showed comparable uptake and release capacity of protein and bacterial species (Pseudomonas aeruginosa and Staphylococcus aureus) with those of the commercial foam-type swab. In this way, the obtained swab can be attractive and suitable to fit into this panorama due to its low-cost process, easy scalability, and good uptake and release capabilities.
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Affiliation(s)
- Rebecca Pellegrino
- Department of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (S.V.); (N.C.); (M.M.); (C.D.)
| | - Stefania Villani
- Department of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (S.V.); (N.C.); (M.M.); (C.D.)
| | - Daniela Spagnolo
- Microbiotech s.r.l., Via A. Tamborino s.n.c., 73024 Maglie, Italy; (D.S.); (I.C.)
| | - Irene Carofalo
- Microbiotech s.r.l., Via A. Tamborino s.n.c., 73024 Maglie, Italy; (D.S.); (I.C.)
| | - Nico Carrino
- Department of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (S.V.); (N.C.); (M.M.); (C.D.)
| | - Matteo Calcagnile
- Department of Biological and Environmental Sciences and Technologies, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (M.C.); (P.A.)
| | - Pietro Alifano
- Department of Biological and Environmental Sciences and Technologies, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (M.C.); (P.A.)
| | - Marta Madaghiele
- Department of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (S.V.); (N.C.); (M.M.); (C.D.)
| | - Christian Demitri
- Department of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (S.V.); (N.C.); (M.M.); (C.D.)
| | - Paola Nitti
- Department of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy; (S.V.); (N.C.); (M.M.); (C.D.)
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8
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Yu M, Tang Y, Min M, Herrmann B, Cerbule K, Liu C, Dou Y, Zhang L. Comparison of physical properties and fishing performance between biodegradable PLA and conventional PA trammel nets in grey mullet (Mugil cephalus) and red-lip mullet (Liza haematocheila) fishery. MARINE POLLUTION BULLETIN 2023; 195:115545. [PMID: 37722264 DOI: 10.1016/j.marpolbul.2023.115545] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
Marine plastic pollution and continuous capture of marine animals, so-called "ghost fishing", by abandoned, lost, or otherwise discarded fishing gear (ALDFG) are global concerns. This study investigated whether biodegradable polylactic acid (PLA) monofilaments can be used to replace conventionally used non-biodegradable polyamide (PA) in trammel net fishery for limiting ALDFG associated effects. It evaluated the physical properties of PLA and PA monofilaments and compared fishing performance of PLA and PA trammel nets in a commercial mullet fishery in the Yellow Sea, China. Although PA monofilament exhibited superior physical properties, no significant differences in catch efficiency between PA and PLA trammel nets were observed. Fish of both species were mainly captured by pocketing which can further explain observed similar catch efficiency. These initial results suggest a potential for applying biodegradable materials in trammel net fisheries. Therefore, further long-term testing is encouraged to investigate whether this promising performance is persistent over long-term.
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Affiliation(s)
- Mengjie Yu
- Fisheries College, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Yanli Tang
- Fisheries College, Ocean University of China, 266003 Qingdao, Shandong, China.
| | - Minghua Min
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 200090 Shanghai, China.
| | - Bent Herrmann
- SINTEF Ocean, Fishing Gear Technology, Trondheim, Norway; UiT The Arctic University of Norway, Tromsø, Norway; DTU Aqua, Technical University of Denmark, Hirtshals, Denmark
| | - Kristine Cerbule
- SINTEF Ocean, Fishing Gear Technology, Trondheim, Norway; UiT The Arctic University of Norway, Tromsø, Norway
| | - Changdong Liu
- Fisheries College, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Yilin Dou
- Fisheries College, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Liyou Zhang
- Fisheries College, Ocean University of China, 266003 Qingdao, Shandong, China
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9
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Le Gué L, Davies P, Arhant M, Vincent B, Tanguy E. Mitigating plastic pollution at sea: Natural seawater degradation of a sustainable PBS/PBAT marine rope. MARINE POLLUTION BULLETIN 2023; 193:115216. [PMID: 37437477 DOI: 10.1016/j.marpolbul.2023.115216] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/14/2023]
Abstract
This paper evaluates the use of a PBS/PBAT biodegradable rope to reduce the environmental impact of fishing gear lost at sea. The study aims to better understand the degradation mechanisms that the rope and its monofilaments may encounter due to the long term exposure to seawater. The monofilaments were immersed in natural seawater for up to 18 months, and rope samples were also immersed to study aging at a larger scale and evaluate the ability of a modelling tool to predict initial and aged states of the rope. At low temperatures, no loss of properties was observed for the monofilament and rope. However, at higher temperatures, biodegradation and hydrolysis processes were observed, leading to a faster loss of properties in the monofilament compared to the rope. The modelling tool provided conservative predictions due to severe mechanical test conditions of aged monofilament and a degradation gradient within the rope structure.
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Affiliation(s)
- Louis Le Gué
- Ifremer RDT, Research and Technology Development Unit, 1625 route de Sainte-Anne, Plouzané, 29280, France; DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro, Lorient, 56325, France.
| | - Peter Davies
- Ifremer RDT, Research and Technology Development Unit, 1625 route de Sainte-Anne, Plouzané, 29280, France
| | - Mael Arhant
- Ifremer RDT, Research and Technology Development Unit, 1625 route de Sainte-Anne, Plouzané, 29280, France
| | - Benoit Vincent
- DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro, Lorient, 56325, France
| | - Erwan Tanguy
- Le Drezen, 12 rue de Kélareun, Le Guilvinec, 29730, France
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10
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Nazrin A, Sapuan SM, Zuhri MYM, Tawakkal ISMA, Ilyas RA. Mechanical degradation of sugar palm crystalline nanocellulose reinforced thermoplastic sugar palm starch (TPS)/poly (lactic acid) (PLA) blend bionanocomposites in aqueous environments. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Abstract
The concerning issue regarding petrochemical plastic wastes had prompted scientists and researchers to develop biodegradable plastic in effort to tackle environmental pollution. Alternative bioresources such as poly (lactic acid), sugar palm starch and nanocellulose fibre were utilized in producing cheap, biodegradable and sustainable plastic with satisfactory mechanical properties for food packaging application. In this study, sugar palm crystalline nanocellulose (SPCNC) was priorly dispersed in thermoplastic sugar palm starch (TPS) before melt blended with poly (lactic acid) (PLA) and later compress moulded into a sheet form. Initial biodegradation test of PLA100 and all PLA/TPS blends bionanocomposite samples indicated that PLA60TPS40 has the least variation in weight loss due to the good miscibility between TPS and PLA promoting the reinforcement of SPCNC. Greater weight losses in seawater (17.54%), river water (18.97%) and sewer water (22.27%) result in greater mechanical degradation as observed at the reduction of tensile strength from 12.11 MPa to 2.72 MPa in seawater, 1.48 MPa in river water and 0.40 MPa in sewer water. Similarly, higher weight losses in seawater (22.16%), river water (21.6%) and sewer water (23.09%) correlated with the reduction of flexural strength from 18.37 MPa to 3.5 MPa in seawater, 3.83 MPa in river water and 3.6 MPa in sewer water. The scanning electron microscope (SEM) images of tensile fracture morphology demonstrated clear porous structure due to the removal of starch particles by microbial activity. The homogenous structure of PLA60TPS40 had a steady and consistent degradation, which wholly diminished the interfacial adhesion that led to mechanical properties losses. The mechanical strength reduction clarified that the biodegradation rate within the media used might be able to resolve the excessive non-biodegradable plastic waste in open waters.
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Affiliation(s)
- Asmawi Nazrin
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP) , Universiti Putra Malaysia , 43400 UPM Serdang , Selangor , Malaysia
| | - Salit Mohd Sapuan
- Advanced Engineering Materials and Composites Research Centre (AEMC), Department of Mechanical and Manufacturing Engineering , Universiti Putra Malaysia , 43400 UPM Serdang , Selangor , Malaysia
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP) , Universiti Putra Malaysia , 43400 UPM Serdang , Selangor , Malaysia
| | - Mohamed Yusoff Mohd Zuhri
- Advanced Engineering Materials and Composites Research Centre (AEMC), Department of Mechanical and Manufacturing Engineering , Universiti Putra Malaysia , 43400 UPM Serdang , Selangor , Malaysia
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP) , Universiti Putra Malaysia , 43400 UPM Serdang , Selangor , Malaysia
| | | | - Rushdan Ahmad Ilyas
- School of Chemical and Energy Engineering, Faculty of Engineering , Universiti Teknologi Malaysia , 81310 Johor Bahru , Johor , Malaysia
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Duan L, Yan F, Zhang L, Liu B, Zhang Y, Tian X, Liu Z, Wang X, Wang S, Tian J, Bao H, Liu T. ZnO@Polyvinyl Alcohol/Poly(lactic acid) Nanocomposite Films for the Extended Shelf Life of Pork by Efficient Antibacterial Adhesion. ACS OMEGA 2022; 7:44657-44669. [PMID: 36530329 PMCID: PMC9753524 DOI: 10.1021/acsomega.2c03016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
The proliferation of microorganisms is an important reason for meat spoilage and deterioration. Freezing and packaging by polymer films and preservatives are commonly used to preserve meat. While the energy consumption of freezing is very big, the polymer films made by petroleum bring up heavy environmental pressure. In the present study, biodegradable antibacterial ZnO@PLA (ZP) and ZnO@PVA/PLA (ZPP) nanocomposite films used as food packaging have been synthesized by the solvent evaporation method and coating method, respectively. Compared with films without ZnO NPs, ZP and ZPP both had long-term bacteriostasis for 24 and 120 h at temperatures of 25 and 4 °C, respectively. Moreover, the antibacterial effect showed positive relevance with the increase of the ZnO NP concentration. In addition, the antibacterial effect of ZPP was better than that of ZP in the same condition. Scanning electron microscopy showed that the numbers of methicillin-resistant staphylococcus aureus (MRSA) on ZP and ZPP were significantly reduced compared to that in the blank film, and ZPP caused the morphology of MRSA to change, which means that the antibacterial mechanism of ZP and ZPP composite films might be related to antibacterial adhesion. In conclusion, ZPP films have great potential to be regarded as the candidate of food packing to extend the shelf life of pork.
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Affiliation(s)
- Luoyan Duan
- Laboratory
of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No.2 West Road Yuanmingyuan, Beijing 100193, People’s Republic of China
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Feiyi Yan
- Laboratory
of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No.2 West Road Yuanmingyuan, Beijing 100193, People’s Republic of China
| | - Lei Zhang
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Bo Liu
- Laboratory
of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No.2 West Road Yuanmingyuan, Beijing 100193, People’s Republic of China
| | - Yichi Zhang
- Laboratory
of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No.2 West Road Yuanmingyuan, Beijing 100193, People’s Republic of China
| | - Xinyuan Tian
- Laboratory
of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No.2 West Road Yuanmingyuan, Beijing 100193, People’s Republic of China
| | - Zhaoping Liu
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Xiaodan Wang
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Shuaiyu Wang
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Jijing Tian
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Huihui Bao
- NHC
Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit, China National
Center for Food Safety Risk Assessment, No.37, Guangqu Road, Chaoyang
District, Beijing 100022, People’s Republic of China
| | - Tianlong Liu
- Laboratory
of Veterinary Pathology and Nanopathology, College of Veterinary Medicine, China Agricultural University, No.2 West Road Yuanmingyuan, Beijing 100193, People’s Republic of China
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12
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Li X, Lin Y, Liu M, Meng L, Li C. A review of research and application of polylactic acid composites. J Appl Polym Sci 2022. [DOI: 10.1002/app.53477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- Xiangrui Li
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
| | - Yu Lin
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
| | - Mingli Liu
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
| | - Lipeng Meng
- Forestry Resource Utilization Institute Jilin Forestry Scientific Research Institute Jilin China
| | - Chunfeng Li
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
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13
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Lu B, Zhen Z, Liu T, Xu P, Wang G, Huang D, Ji J. Rapid seawater‐degradable
PBSG
/
PVA
blends: Easy water solubility and easy hydrolysis dual‐promoting degradation. J Appl Polym Sci 2022. [DOI: 10.1002/app.53474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Bo Lu
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
- College of Materials Sciences and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Zhi‐Chao Zhen
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
| | - Tian‐Yuan Liu
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
- College of Materials Sciences and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Peng‐Yuan Xu
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
- College of Materials Sciences and Opto‐Electronic Technology University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Ge‐Xia Wang
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
| | - Dan Huang
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
| | - Jun‐Hui Ji
- National Engineering Research Center of Engineering Plastics and Ecological Plastics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing People’s Republic of China
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14
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Dong L, Zhou Y, Liu Y, Lu B, Ji J, Ding Y. High performance and water‐degradable poly(neopentyl terephthalate‐co‐neopentyl succinate) copolymers: Synthesis, properties, and hydrolysis in different aquatic bodies. J Appl Polym Sci 2022. [DOI: 10.1002/app.53316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Liming Dong
- School of Material and Chemical Engineering Xuzhou University of Technology Xuzhou China
| | - Yingmei Zhou
- School of Material and Chemical Engineering Xuzhou University of Technology Xuzhou China
| | - Yuanyuan Liu
- School of Material and Chemical Engineering Xuzhou University of Technology Xuzhou China
| | - Bo Lu
- National Engineering Research Center of Engineering Plastics and Ecological Plastics Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing China
| | - Junhui Ji
- National Engineering Research Center of Engineering Plastics and Ecological Plastics Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing China
| | - Yue Ding
- School of Material and Chemical Engineering Xuzhou University of Technology Xuzhou China
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15
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Degradation kinetics and performances of poly(lactic acid) films in artificial seawater. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02286-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Sun J, Huang Y, Jin Y, Tian H, Men S. Improvement of mechanical properties and heat distortion temperature of polylactic acid by highly aromatic hyperbranched polyamide. J Appl Polym Sci 2022. [DOI: 10.1002/app.52738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jianjian Sun
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics Beijing Technology and Business University Beijing People's Republic of China
| | - Yansong Huang
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics Beijing Technology and Business University Beijing People's Republic of China
| | - Yujuan Jin
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics Beijing Technology and Business University Beijing People's Republic of China
| | - Huafeng Tian
- School of Chemistry and Materials Engineering Beijing Technology and Business University Beijing People's Republic of China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics Beijing Technology and Business University Beijing People's Republic of China
| | - Shuang Men
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics Beijing Technology and Business University Beijing People's Republic of China
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17
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Tosakul T, Suetong P, Chanthot P, Pattamaprom C. Degradation of polylactic acid and polylactic acid/natural rubber blown films in aquatic environment. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03039-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Boonpavanitchakul K, Kangwansupamonkon W, Pimpha N, Magaraphan R. Influence of
sericin‐g‐PLA
as an organic nucleating agent for preparing biodegradable blend films. J Appl Polym Sci 2022. [DOI: 10.1002/app.52389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Wiyong Kangwansupamonkon
- National Nanotechnology Center National Science and Technology Development Agency Klong Luang Pathumthani Thailand
- Academy of Sciences The Royal Society of Thailand Bangkok Thailand
| | - Nuttaporn Pimpha
- National Nanotechnology Center National Science and Technology Development Agency Klong Luang Pathumthani Thailand
| | - Rathanawan Magaraphan
- The Petroleum and Petrochemical College Chulalongkorn University Bangkok Thailand
- Polymer Processing and Polymer Nanomaterials Research Unit Chulalongkorn University Bangkok Thailand
- Green Materials for Industrial Application Research Unit, Faculty of Science Chulalongkorn University Bangkok Thailand
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19
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Fuchs M, Walbeck M, Jagla E, Hoffmann A, Herres-Pawlis S. Guanidine Carboxy Zinc Complexes for the Chemical Recycling of Renewable Polyesters. Chempluschem 2022; 87:e202200029. [DOI: 10.1002/cplu.202200029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/22/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Martin Fuchs
- RWTH Aachen University: Rheinisch-Westfalische Technische Hochschule Aachen Chemistry GERMANY
| | - Marcel Walbeck
- RWTH Aachen University: Rheinisch-Westfalische Technische Hochschule Aachen Chemistry GERMANY
| | - Eveline Jagla
- RWTH Aachen University: Rheinisch-Westfalische Technische Hochschule Aachen Chemistry GERMANY
| | - Alexander Hoffmann
- RWTH Aachen University: Rheinisch-Westfalische Technische Hochschule Aachen Chemistry GERMANY
| | - Sonja Herres-Pawlis
- RWTH Aachen Fakultät 1, Institut für Anorganische Chemie Landoltweg 1 52074 Aachen GERMANY
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20
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Decomposition Behavior of Biodegradable and Single-Use Tableware Items in the Warnow Estuary (Baltic Sea). SUSTAINABILITY 2022. [DOI: 10.3390/su14052544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Due to the increasing demand for alternative and supposedly more sustainable single-use tableware compared to conventional fossil-based plastic items, there now exists a broad variety of innovative new bio-based and biodegradable items. The aim of this research is to conduct a monitoring of the biodegradability of selected tableware items: polylactic acid (PLA), crystallized polylactic acid (CPLA), wood, palm leaf, paper/cellulose and sugar cane bagasse, as well as a common fossil-based plastic polystyrene (PS) as a comparative material in a water column, to determine their possible use as a substitute for single-use plastic flatware. In situ experiments were performed over a one-year period to consider changes in water temperature, salinity gradients, pH values and dissolved oxygen (DO). The main findings show that tableware items composed of palm leaf, sugar cane bagasse and paper are less resistant to estuary conditions. However, wood, PLA, CPLA and PS items showed a certain resistance during the experimentation period. Furthermore, items placed in the upper incubators degraded relatively faster than those of the same material but placed in the lower incubators. The results indicate that temperature and exposure to natural light could be an important factor in terms of accelerating the degradation of the materials considered.
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21
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Zhang Z, He F, Wang B, Zhao Y, Wei Z, Zhang H, Sang L. Biodegradable PGA/PBAT Blends for 3D Printing: Material Performance and Periodic Minimal Surface Structures. Polymers (Basel) 2021; 13:polym13213757. [PMID: 34771313 PMCID: PMC8587109 DOI: 10.3390/polym13213757] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/23/2022] Open
Abstract
Biodegradable polymers have been rapidly developed for alleviating excessive consumption of non-degradable plastics. Additive manufacturing is also a green energy-efficiency and environment-protection technique to fabricate complicated structures. Herein, biodegradable polyesters, polyglycolic acid (PGA) and poly (butyleneadipate-co-terephthalate) (PBAT) were blended and developed into feedstock for 3D printing. Under a set of formulations, PGA/PBAT blends exhibited a tailored stiffness-toughness mechanical performance. Then, PGA/PBAT (85/15 in weight ratio) with good thermal stability and mechanical property were extruded into filaments with a uniform wire diameter. Mechanical testing clearly indicated that FDM 3D-printed exhibited comparable tensile, flexural and impact properties with injection-molded samples of PGA/PBAT (85/15). Furthermore, uniform and graded Diamond-Triply Periodic Minimal Surfaces (D-TPMS) structures were designed and successfully manufactured via the fused deposition modeling (FDM) technique. Computer tomography (CT) was employed to confirm the internal three-dimensional structures. The compressive test results showed that PGA/PBAT (85/15) D-surface structures bear better load-carrying capacity than that of neat PGA, giving an advantage of energy absorption. Additionally, typical industrial parts were manufactured with excellent dimension-stability, no-wrapping and fine quality. Collectively, biodegradable PGA/PBAT material with good printability has great potentials in application requiring stiffer structures.
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Affiliation(s)
- Zihui Zhang
- School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Fengtai He
- Department of Radiology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China; (F.H.); (Y.Z.)
| | - Bo Wang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Yiping Zhao
- Department of Radiology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China; (F.H.); (Y.Z.)
| | - Zhiyong Wei
- Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Hao Zhang
- Department of Orthopedics, Affiliated Dalian Municipal Central Hospital, Dalian Medical University, Dalian 116027, China
- Correspondence: (H.Z.); (L.S.)
| | - Lin Sang
- School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China;
- Correspondence: (H.Z.); (L.S.)
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