1
|
Graupner N, Müssig J. A Bio-Inspired Approach to Improve the Toughness of Brittle Bast Fibre-Reinforced Composites Using Cellulose Acetate Foils. Biomimetics (Basel) 2024; 9:131. [PMID: 38534816 DOI: 10.3390/biomimetics9030131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/14/2024] [Accepted: 02/17/2024] [Indexed: 03/28/2024] Open
Abstract
Bast fibre-reinforced plastics are characterised by good strength and stiffness but are often brittle due to the stiff and less ductile fibres. This study uses a biomimetic approach to improve impact strength. Based on the structure of the spicules of a deep-sea glass sponge, in which hard layers of bioglass alternate with soft layers of proteins, the toughness of kenaf/epoxy composites was significantly improved by a multilayer structure of kenaf and cellulose acetate (CA) foils as impact modifiers. Due to the alternating structure, cracks are deflected, and toughness is improved. One to five CA foils were stacked with kenaf layers and processed to composite plates with bio-based epoxy resin by compression moulding. Results have shown a significant improvement in toughness using CA foils due to increased crack propagation. The unnotched Charpy impact strength increased from 9.0 kJ/m2 of the pure kenaf/epoxy composite to 36.3 kJ/m2 for the sample containing five CA foils. The tensile and flexural strength ranged from 74 to 81 MPa and 112 to 125 MPa, respectively. The tensile modulus reached values between 9100 and 10,600 MPa, and the flexural modulus ranged between 7200 and 8100 MPa. The results demonstrate the successful implementation of an abstract transfer of biological role models to improve the toughness of brittle bast fibre-reinforced plastics.
Collapse
Affiliation(s)
- Nina Graupner
- HSB-Hochschule Bremen, the Biological Materials Group, Department of Biomimetics, Neustadtswall 30, D-28199 Bremen, Germany
| | - Jörg Müssig
- HSB-Hochschule Bremen, the Biological Materials Group, Department of Biomimetics, Neustadtswall 30, D-28199 Bremen, Germany
| |
Collapse
|
2
|
Bacha S, Arous F, Chouikh E, Jaouani A, Gtari M, Charradi K, Attia H, Ghorbel D. Exploring Bacillus amyloliquefaciens strain OM81 for the production of polyhydroxyalkanoate (PHA) bioplastic using olive mill wastewater. 3 Biotech 2023; 13:415. [PMID: 38009166 PMCID: PMC10667205 DOI: 10.1007/s13205-023-03808-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/10/2023] [Indexed: 11/28/2023] Open
Abstract
In this study, bacterial strains isolated from olive oil mill wastewater assigned to Bacillus (n = 4) and Klebsiella (n = 1) genera, were evaluated for their ability to accumulate intracellular PHA granules using Sudan Black staining. A maximum PHA production of 0.14 g/L (i.e., 30.2% wt./wt. in dry biomass) was observed in Bacillus amyloliquefaciens strain OM81 after 72 h of incubation in the presence of 2% glucose (synthetic medium). To reduce bioplastic production costs and recover a polluting product, olive mill wastewater was tested as a carbon source. In this context, the maximum growth (1.45 g/L) was observed in the presence of 50% olive mill wastewater. After extracting the biopolymers with chloroform, quantitative and qualitative analyses were conducted using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). FTIR showed an absorption band at 1730 cm-1 assigned to the elongation of the PHB carbonyl groups. This approach offers a dual benefit of reducing pollution and bioplastic production costs. The Bacillus amyloliquefaciens strain OM81 showed promising results for PHAs production, making it a potential candidate for further investigation. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03808-4.
Collapse
Affiliation(s)
- Samar Bacha
- University of Carthage, INSAT, Centre Urbain Nord, B.P. 676, 1080 Tunis, Tunisia
| | - Fatma Arous
- LR22ES04 Bioresources, Environment and Biotechnologies (BeB), University of Tunis El Manar, Higher Institute of Applied Biological Sciences of Tunis, 1006 Tunis, Tunisia
| | - Emna Chouikh
- University of Carthage, INSAT, Centre Urbain Nord, B.P. 676, 1080 Tunis, Tunisia
| | - Atef Jaouani
- LR22ES04 Bioresources, Environment and Biotechnologies (BeB), University of Tunis El Manar, Higher Institute of Applied Biological Sciences of Tunis, 1006 Tunis, Tunisia
| | - Maher Gtari
- University of Carthage, INSAT, Centre Urbain Nord, B.P. 676, 1080 Tunis, Tunisia
- USCR Bactériologie Moléculaire & Génomique, INSAT, Centre Urbain Nord, B.P. 676, 1080 Tunis, Tunisia
- Food Analysis, Valorization, and Safety Laboratory, LAVASA, LR11ES45, BPW, University of Sfax, ENIS, 3038 Sfax, Tunisia
| | - Khaled Charradi
- Nanomaterials and Systems for Renewable Energy Laboratory, Research and Technology Center of Energy, Technopark Borj Cedria, BP 095, Hammam-Lif, Tunisia
| | - Hamadi Attia
- Food Analysis, Valorization, and Safety Laboratory, LAVASA, LR11ES45, BPW, University of Sfax, ENIS, 3038 Sfax, Tunisia
| | - Dorra Ghorbel
- University of Carthage, INSAT, Centre Urbain Nord, B.P. 676, 1080 Tunis, Tunisia
- Food Analysis, Valorization, and Safety Laboratory, LAVASA, LR11ES45, BPW, University of Sfax, ENIS, 3038 Sfax, Tunisia
| |
Collapse
|
3
|
Zamani M, Zahedian A, Tanideh N, Khodabandeh Z, Koohpeyma F, Khazraei H, Zare S, Zarei M, Hosseini SV. Comparison effect of collagen/P3HB composite scaffold and human amniotic membrane loaded with mesenchymal stem cells on colon anastomosis healing in male rats. Biochem Biophys Res Commun 2023; 682:281-292. [PMID: 37832385 DOI: 10.1016/j.bbrc.2023.10.020] [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: 08/14/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/15/2023]
Abstract
Covering surgical wounds with biomaterials, biologic scaffolds, and mesenchymal stem cells (MSCs) improves the healing process and reduces postoperative complications. This study was designed to evaluate and compare the effect of MSC-free/MSC-seeded new collagen/poly(3-hydroxybutyrate) (COL/P3HB) composite scaffold and human amniotic membrane (HAM) on the colon anastomosis healing process. COL/P3HB scaffold was prepared using freeze-drying method. MSCs were isolated and characterized from rat adipose tissue. After biocompatibility evaluation by MTT assay, MSCs were seeded on the scaffold and HAM by micro-mass seeding technique. In total, 35 male rats were randomly divided into five groups. After the surgical procedure, cecum incisions were covered by the MSC-free/MSC-seeded scaffold or HAM. Incisions in the control group were only sutured. One month later, the healing process was determined by stereological analysis. The Kruskal-Wallis followed by Dunn's tests were utilized for statistical outcome analysis (SPSS software version 21). COL/10% P3HB scaffold showed the best mechanical and structural properties (7.86 MPa strength, porosity more than 75%). MTT assay indicated that scaffold and especially HAM have suitable biocompatibility. Collagenization and neovascularization were significantly higher, and necrosis was considerably lower in all treated groups in comparison with the controls. MSC-seeded scaffold and HAM significantly decrease inflammation and increase gland volume compared with other groups. The MSC-seeded HAM was significantly successful in decreasing edema compared with other groups. Newly synthesized COL/P3HB scaffold improves the colon anastomosis healing; however, the major positive effect belonged to HAM. MSCs remarkably increase their healing process. Further investigations may contribute to confirming these results in other wound healing.
Collapse
Affiliation(s)
- Mozhdeh Zamani
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Zahedian
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nader Tanideh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Khodabandeh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hajar Khazraei
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahrokh Zare
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Moein Zarei
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; West Pomeranian University of Technology, Szczecin, Department of Polymer and Biomaterials Science, Al. Piastow 45, 71-311, Szczecin, Poland.
| | - Seyed Vahid Hosseini
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
4
|
Białkowska A, Krzykowska B, Zarzyka I, Bakar M, Sedlařík V, Kovářová M, Czerniecka-Kubicka A. Polymer/Layered Clay/Polyurethane Nanocomposites: P3HB Hybrid Nanobiocomposites-Preparation and Properties Evaluation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:225. [PMID: 36677979 PMCID: PMC9861881 DOI: 10.3390/nano13020225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/01/2023] [Accepted: 01/01/2023] [Indexed: 06/17/2023]
Abstract
This paper presents an attempt to improve the properties of poly(3-hydroxybutyrate) (P3HB) using linear aliphatic polyurethane (PU400) and organomodified montmorillonite (MMT)-(Cloisite®30B). The nanostructure of hybrid nanobiocomposites produced by extrusion was analyzed by X-ray diffraction and transmission electron microscopy, and the morphology was analyzed by scanning electron microscopy. In addition, selected mechanical properties and thermal properties were studied by thermogravimetric analysis, TGA, and differential scanning calorimetry, DSC. The interactions of the composite ingredients were indicated by FT IR spectroscopy. The effect of the amount of nanofiller on the properties of prepared hybrid nanobiocomposites was noted. Moreover, the non-equilibrium and equilibrium thermal parameters of nanobiocomposites were established based on their thermal history. Based on equilibrium parameters (i.e., the heat of fusion for the fully crystalline materials and the change in the heat capacity at the glass transition temperature for the fully amorphous nanobiocomposites), the degree of crystallinity and the mobile and rigid amorphous fractions were estimated. The addition of Cloisite®30B and aliphatic polyurethane to the P3HB matrix caused a decrease in the degree of crystallinity in reference to the unfilled P3HB. Simultaneously, an increase in the amorphous phase contents was noted. A rigid amorphous fraction was also denoted. Thermogravimetric analysis of the nanocomposites was also carried out and showed that the thermal stability of all nanocomposites was higher than that of the unfilled P3HB. An additional 1% mass of nanofiller increased the degradation temperature of the nanocomposites by about 30 °C in reference to the unfilled P3HB. Moreover, it was found that obtained hybrid nanobiocomposites containing 10 wt.% of aliphatic polyurethane (PU400) and the smallest amount of nanofiller (1 wt.% of Cloisite®30B) showed the best mechanical properties. We observed a desirable decrease in hardness of 15%, an increase in the relative strain at break of 60% and in the impact strength of 15% of the newly prepared nanobiocomposites with respect to the unfiled P3HB. The produced hybrid nanobiocomposites combined the best features induced by the plasticizing effect of polyurethane and the formation of P3HB-montmorillonite-polyurethane (P3HB-PU-MMT) adducts, which resulted in the improvement of the thermal and mechanical properties.
Collapse
Affiliation(s)
- Anita Białkowska
- Faculty of Chemical Engineering and Commodity Science, University of Technology and Humanities, Chrobrego 27, 26-600 Radom, Poland
| | - Beata Krzykowska
- Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Iwona Zarzyka
- Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Mohamed Bakar
- Faculty of Chemical Engineering and Commodity Science, University of Technology and Humanities, Chrobrego 27, 26-600 Radom, Poland
| | - Vladimir Sedlařík
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Miroslava Kovářová
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Anna Czerniecka-Kubicka
- Department of Experimental and Clinical Pharmacology, Medical College of Rzeszow University, The University of Rzeszow, 35-310 Rzeszow, Poland
| |
Collapse
|
5
|
Physical, mechanical and abrasive wear behavior of attapulgite reinforced walnut shell/PVC composites. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03374-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
6
|
Novel Production Methods of Polyhydroxyalkanoates and Their Innovative Uses in Biomedicine and Industry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238351. [PMID: 36500442 PMCID: PMC9740486 DOI: 10.3390/molecules27238351] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/25/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022]
Abstract
Polyhydroxyalkanoate (PHA), a biodegradable polymer obtained from microorganisms and plants, have been widely used in biomedical applications and devices, such as sutures, cardiac valves, bone scaffold, and drug delivery of compounds with pharmaceutical interests, as well as in food packaging. This review focuses on the use of polyhydroxyalkanoates beyond the most common uses, aiming to inform about the potential uses of the biopolymer as a biosensor, cosmetics, drug delivery, flame retardancy, and electrospinning, among other interesting uses. The novel applications are based on the production and composition of the polymer, which can be modified by genetic engineering, a semi-synthetic approach, by changing feeding carbon sources and/or supplement addition, among others. The future of PHA is promising, and despite its production costs being higher than petroleum-based plastics, tools given by synthetic biology, bioinformatics, and machine learning, among others, have allowed for great production yields, monomer and polymer functionalization, stability, and versatility, a key feature to increase the uses of this interesting family of polymers.
Collapse
|
7
|
Yang X, Su G, Huang X, Liu J, Zhou T, Zhang X. Noncovalent Assembly Enabled Strong yet Tough Materials with Room-Temperature Malleability and Healability. ACS NANO 2022; 16:13002-13013. [PMID: 35929760 DOI: 10.1021/acsnano.2c05518] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The manufacturing of both metals and polymer materials strongly relies on melt processing at relatively high temperatures which needs complex shaping-cooling equipment, long molding time, and considerable energy consumption. Reducing the processing temperature to achieve room-temperature malleability is heavily desired for low-carbon demands but continues to be a great challenge. Here, we demonstrate a noncovalent assembly strategy to fabricate room-temperature malleable composites embedded by liquid metals with excellent toughness (105.88 MJ m-3, higher than most traditional plastics and metallic aluminum) and strong mechanical strength (35.49 MPa). The dissociation-reconstruction of supramolecular bonding interactions between assembled nanoparticles and polymer matrix allow the malleable composite with two interchangeable supramolecular states to achieve programming at room temperature stimulated by water vapor and give it self-healing ability (self-healing efficiency of ∼100%; the healed sample can lift about 52,300 times its own weight). Furthermore, the composite also exhibits metallic luster and prospective application in thermal dissipation. This strategy might be an efficient way for the development of a method for strong and tough materials structurally designed to achieve programming at moderate conditions.
Collapse
Affiliation(s)
- Xin Yang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Gehong Su
- College of Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Xin Huang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Jize Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Tao Zhou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, P.R. China
| |
Collapse
|
8
|
Polyhydroxyalkanoate Decelerates the Release of Paclitaxel from Poly(lactic-co-glycolic acid) Nanoparticles. Pharmaceutics 2022; 14:pharmaceutics14081618. [PMID: 36015244 PMCID: PMC9416746 DOI: 10.3390/pharmaceutics14081618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 11/17/2022] Open
Abstract
Biodegradable nanoparticles (NPs) are preferred as drug carriers because of their effectiveness in encapsulating drugs, ability to control drug release, and low cytotoxicity. Although poly(lactide co-glycolide) (PLGA)-based NPs have been used for controlled release strategies, they have some disadvantages. This study describes an approach using biodegradable polyhydroxyalkanoate (PHA) to overcome these challenges. By varying the amount of PHA, NPs were successfully fabricated by a solvent evaporation method. The size range of the NPS ranged from 137.60 to 186.93 nm, and showed zero-order release kinetics of paclitaxel (PTX) for 7 h, and more sustained release profiles compared with NPs composed of PLGA alone. Increasing the amount of PHA improved the PTX loading efficiency of NPs. Overall, these findings suggest that PHA can be used for designing polymeric nanocarriers, which offer a potential strategy for the development of improved drug delivery systems for sustained and controlled release.
Collapse
|
9
|
Kervran M, Vagner C, Cochez M, Ponçot M, Saeb M, Vahabi H. A review on thermal degradation of polylactic acid (PLA)/polyhydroxybutyrate (PHB) blends. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.109995] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Nath D, R S, Pal K, Sarkar P. Nanoclay-based active food packaging systems: A review. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2021.100803] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
11
|
Stoica D, Alexe P, Ivan AS, Stanciu S, Tatu DM, Stoica M. Bioplastics from Biomass. Biopolymers 2022. [DOI: 10.1007/978-3-030-98392-5_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
12
|
Palmieri S, Tittarelli F, Sabbatini S, Cespi M, Bonacucina G, Eusebi AL, Fatone F, Stipa P. Effects of different pre-treatments on the properties of polyhydroxyalkanoates extracted from sidestreams of a municipal wastewater treatment plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 801:149633. [PMID: 34467906 DOI: 10.1016/j.scitotenv.2021.149633] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
The paper deals with effects of two different widespread extraction methods (conventional extraction and Soxhlet extraction) and four different pre-treatments (homogenization with pressure and with blades, sonication, and impact with glass spheres) on the extraction yields and properties of polyhydroxyalkanoate (PHA) extracted from biomass coming from an innovative process (short-cut enhanced phosphorus and PHA recovery) applied in a real wastewater treatment plant. The results show that the two different extraction processes affected the crystallization degree and the chemical composition of the polymer. On the other hand, the extractive yield was highly influenced by pre-treatments: homogenization provided a 15% more extractive yield than the others. Homogenization, especially at high pressure, proved to be the best pre-treatment also in terms of the purity, visual appearance (transparency and clearness), thermal stability, and mechanical performances of the obtained PHA films. All the PHA films begin to melt long before their degradation temperature (Td > 200 °C): this allows their use in the fields of extrusion or compression moulding. SYNOPSIS: Optimizing the extraction of PHAs from municipal wastewater gives a double beneficial environmental impact: wastewater treatment and circular bio-based carbon upgrade to biopolymers for the production of bioplastics and other intersectoral applications.
Collapse
Affiliation(s)
- S Palmieri
- Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Università Politecnica delle Marche, INSTM Research Unit, Via Brecce Bianche 12, 60131 Ancona, Italy.
| | - F Tittarelli
- Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Università Politecnica delle Marche, INSTM Research Unit, Via Brecce Bianche 12, 60131 Ancona, Italy; Institute of Atmospheric Sciences and Climate, National Research Council (ISAC-CNR), Bologna 40129, Italy.
| | - S Sabbatini
- Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Università Politecnica delle Marche, INSTM Research Unit, Via Brecce Bianche 12, 60131 Ancona, Italy.
| | - M Cespi
- Department of Chemical Sciences, University of Camerino, via S. Agostino 1, 62032 Camerino, Italy.
| | - G Bonacucina
- Department of Chemical Sciences, University of Camerino, via S. Agostino 1, 62032 Camerino, Italy.
| | - A L Eusebi
- Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Università Politecnica delle Marche, INSTM Research Unit, Via Brecce Bianche 12, 60131 Ancona, Italy.
| | - F Fatone
- Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Università Politecnica delle Marche, INSTM Research Unit, Via Brecce Bianche 12, 60131 Ancona, Italy.
| | - P Stipa
- Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Università Politecnica delle Marche, INSTM Research Unit, Via Brecce Bianche 12, 60131 Ancona, Italy.
| |
Collapse
|
13
|
Rekhi P, Goswami M, Ramakrishna S, Debnath M. Polyhydroxyalkanoates biopolymers toward decarbonizing economy and sustainable future. Crit Rev Biotechnol 2021; 42:668-692. [PMID: 34645360 DOI: 10.1080/07388551.2021.1960265] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Polymers are synonymous with the modern way of living. However, polymers with a large carbon footprint, especially those derived from nonrenewable petrochemical sources, are increasingly perceived as detrimental to the environment and a sustainable future. Polyhydroxyalkanoate (PHA) is a microbial biopolymer and a plausible alternative for renewable sources. However, PHA in its monomeric forms has very limited applications due to its limited flexibility, tensile strength, and moldability. Herein, the life cycle of PHA molecules, from biosynthesis to commercial utilization for diverse applications is discussed. For clarity, the applications of this bioplastic biocomposite material are further segregated into two domains, namely, the industrial sector and the medical sector. The industry sectors reviewed here include food packaging, textiles, agriculture, automotive, and electronics. High-value addition of PHA for a sustainable future can be foreseen in the medical domain. Properties such as biodegradability and biocompatibility make PHA a suitable candidate for decarbonizing biomaterials during tissue repair, organ reconstruction, drug delivery, bone tissue engineering, and chemotherapeutics.
Collapse
Affiliation(s)
- Pavni Rekhi
- Department of Biosciences, Manipal University Jaipur, Jaipur, India
| | - Moushmi Goswami
- Department of Biosciences, Manipal University Jaipur, Jaipur, India
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Mousumi Debnath
- Department of Biosciences, Manipal University Jaipur, Jaipur, India
| |
Collapse
|
14
|
G. Quiles L, Vidal J, Luzi F, Dominici F, Fernández Cuello Á, Castell P. Color Fixation Strategies on Sustainable Poly-Butylene Succinate Using Biobased Itaconic Acid. Polymers (Basel) 2020; 13:E79. [PMID: 33379171 PMCID: PMC7795375 DOI: 10.3390/polym13010079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
Biopo-lybutylene succinate (bioPBS) is gaining attention in the biodegradable polymer market due to its promising properties, such as high biodegradability and processing versatility, representing a potential sustainable replacement for fossil-based commodities. However, there is still a need to enhance its properties for certain applications, with aesthetical and mechanical properties being a challenge. The aim of the present work is to improve these properties by adding selected additives that will confer bioPBS with comparable properties to that of current counterparts such as polypropylene (PP) for specific applications in the automotive and household appliances sectors. A total of thirteen materials have been studied and compared, being twelve biocomposites containing combinations of three different additives: a commercial red colorant, itaconic acid (IA) to enhance color fixation and zirconia (ZrO2) nanoparticles to maintain at least native PBS mechanical properties. The results show that the combination of IA and the coloring agent tends to slightly yellowish the blend due to the absorbance spectra of IA and also to modify the gloss due to the formation of IA nanocrystals that affects light scattering. In addition, for low amounts of IA (4 wt %), Young's Modulus seems to be kept while elongation at break is even raised. Unexpectedly, a strong aging affect was found after four weeks. IA increases the hydrophilic behavior of the samples and thus seems to accelerate the hydrolization of the matrix, which is accompanied by an accused disaggregation of phases and an overall softening and rigidization effect. The addition of low amounts of ZrO2 (2 wt %) seems to provide the desired effect for hardening the surface while almost not affecting the other properties; however, higher amounts tends to form aggregates saturating the compounds. As a conclusion, IA might be a good candidate for color fixing in biobased polymers.
Collapse
Affiliation(s)
- Lidia G. Quiles
- Tecnopackaging, Polígono Industrial Empresarium C/Romero Nº, 12, 50720 Zaragoza, Spain
| | - Julio Vidal
- Fundación Aitiip, Polígono Industrial Empresarium C/Romero Nº, 12, 50720 Zaragoza, Spain;
| | - Francesca Luzi
- Department of Civil and Environmental Engineering, University of Perugia, 05100 Terni, Italy; (F.L.); (F.D.)
| | - Franco Dominici
- Department of Civil and Environmental Engineering, University of Perugia, 05100 Terni, Italy; (F.L.); (F.D.)
| | - Ángel Fernández Cuello
- Escuela de Ingeniería y Arquitectura, University of Zaragoza, Av. María de Luna, 3, 50018 Zaragoza, Spain;
| | - Pere Castell
- Fundación Aitiip, Polígono Industrial Empresarium C/Romero Nº, 12, 50720 Zaragoza, Spain;
| |
Collapse
|
15
|
Yan X, Zhou W, Ma X, Sun B. Fabrication and characterization of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) modified with nano-montmorillonite biocomposite. E-POLYMERS 2020. [DOI: 10.1515/epoly-2021-0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this study, a poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) modified with nano-montmorillonite biocomposite (MMT/PHBH) was fabricated by solution-casting method. The results showed that the addition of MMT increased the crystallinity and the number of spherulites, which indicated that MMT was an effective nucleating agent for PHBH. The maximum decomposition peak of the biocomposites moved to a high temperature and residue presented an increasing trend. The biocomposites showed the best thermal stability at 1 wt% MMT. Compared with PHBH, 182.5% and 111.2% improvement in elastic modulus and tensile strength were obtained, respectively. Moreover, the oxygen permeability coefficient and the water vapor permeability of MMT/PHBH biocomposites decreased by 43.9% and 6.9%, respectively. It was also found that the simultaneous enhancements on the crystallizing, thermal stability, mechanical, and barrier properties of biocomposites were mainly caused by the formation of intercalated structure between PHBH and MMT.
Collapse
Affiliation(s)
- Xu Yan
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology , Tianjin 300222 , China
- Key Laboratory of Bio-based Material Science and Technology, Northeast Forestry University , Harbin 150040 , China
| | - Wanru Zhou
- Packaging and Material Safety Inspection Center, Shandong Institute For Product Quality Inspection , Shandong 250000 , China
| | - Xiaojun Ma
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology , Tianjin 300222 , China
- Key Laboratory of Bio-based Material Science and Technology, Northeast Forestry University , Harbin 150040 , China
| | - Binqing Sun
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology , Tianjin 300222 , China
| |
Collapse
|
16
|
Tondi G, Schnabel T. Bio-Based Polymers for Engineered Green Materials. Polymers (Basel) 2020; 12:polym12040775. [PMID: 32244677 PMCID: PMC7240678 DOI: 10.3390/polym12040775] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 12/11/2022] Open
Affiliation(s)
- Gianluca Tondi
- Department of Land, Environment, Agriculture and Forestry, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy
- Correspondence: ; Tel.: +39-043-8272776
| | - Thomas Schnabel
- Forest Products Technology & Timber Constructions Department, Salzburg University of Applied Sciences, Marktstrasse 136a, 5431 Kuchl, Austria;
| |
Collapse
|
17
|
A simple mixing method for polyamide 12/attapulgite nanocomposites: structural and mechanical characterization. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2153-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
|
18
|
Reducing off-Flavour in Commercially Available Polyhydroxyalkanoate Materials by Autooxidation through Compounding with Organoclays. Polymers (Basel) 2019; 11:polym11060945. [PMID: 31159321 PMCID: PMC6631169 DOI: 10.3390/polym11060945] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 12/03/2022] Open
Abstract
Polyhydroxyalkanoates (PHAs) are nowadays considered competent candidates to replace traditional plastics in several market sectors. However, commercial PHA materials exhibit unsatisfactory smells that can negatively affect the quality of the final product. The cause of this typical rancid odour is attributed to oxidized cell membrane glycolipids, coming from Gram-negative production strains, which remain frequently attached to PHAs granules after the extraction stage. The aim of this research is the development of customised PHA bio-nano-composites for industrial applications containing organomodified nanoclays with high adsorbance properties able to capture volatile compounds responsible for the displeasing fragrance. To this end, a methodology for the detection and identification of the key volatiles released due to oxidative degradation of PHAs has been established using a headspace solid-phase microextraction technique. We report the development of nine bio-nano-composite materials based on three types of commercial PHA matrices loaded with three species of nanoclays which represent a different polar behaviour. It has been demonstrated that although the reached outcoming effect depends on the volatile nature, natural sepiolite might result in the most versatile candidate for any the PHA matrices selected.
Collapse
|