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Bernabé I, Amarilla E, de la Orden MU, Martínez Urreaga J, Beltrán FR. Effect of oligomeric lactic acid plasticizer on the mechanical recycling of poly(3-hydroxybutyrate-co-3-hydroxyvalerate). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-023-31758-0. [PMID: 38214860 DOI: 10.1007/s11356-023-31758-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/23/2023] [Indexed: 01/13/2024]
Abstract
Bioplastics such as polyhydroxyalkanoates (PHA) emerge as an interesting alternative to conventional fossil fuel-based plastics and as part of the solution their associated environmental issues. Nevertheless, end-of-life scenarios are still a major concern, especially within a circular economy framework. When feasible, mechanical recycling appears as the best alternative, since it saves raw materials and energy. However, the viability of mechanical recycling can be compromised by the degradation of the plastic during its use and during the recycling process and by the presence of certain additives. Consequently, the main objective of this work is to study the effect of accelerated ageing and mechanical recycling on the structure and properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)-based formulations. The obtained results suggest that accelerated ageing and mechanical recycling led only to a slight degradation of the pure PHBV material, along with small variations in the thermal and mechanical properties. However, the plasticized PHBV formulations showed a more severe degradation and increased thermal stability and stiffness, which could be result of the elimination of the plasticizer during the recycling. Overall, mechanical recycling seems to be an interesting valorization strategy for PHBV wastes, although especial attention should be paid to the additives present in the materials.
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Affiliation(s)
- Ignacio Bernabé
- Departamento de Ingeniería Química Industrial y Medio Ambiente, ETSI Industriales, Universidad Politécnica de Madrid, 28006, Madrid, Spain
- Research Group: "Polímeros, Caracterización y Aplicaciones (POLCA)", 28006, Madrid, Spain
| | - Erika Amarilla
- Departamento de Ingeniería Química Industrial y Medio Ambiente, ETSI Industriales, Universidad Politécnica de Madrid, 28006, Madrid, Spain
| | - María Ulagares de la Orden
- Research Group: "Polímeros, Caracterización y Aplicaciones (POLCA)", 28006, Madrid, Spain
- Departamento Química Orgánica I, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, 28037, Madrid, Spain
| | - Joaquín Martínez Urreaga
- Departamento de Ingeniería Química Industrial y Medio Ambiente, ETSI Industriales, Universidad Politécnica de Madrid, 28006, Madrid, Spain
- Research Group: "Polímeros, Caracterización y Aplicaciones (POLCA)", 28006, Madrid, Spain
| | - Freddys R Beltrán
- Departamento de Ingeniería Química Industrial y Medio Ambiente, ETSI Industriales, Universidad Politécnica de Madrid, 28006, Madrid, Spain.
- Research Group: "Polímeros, Caracterización y Aplicaciones (POLCA)", 28006, Madrid, Spain.
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Erceg T, Rackov S, Terek P, Pilić B. Preparation and Characterization of PHBV/PCL-Diol Blend Films. Polymers (Basel) 2023; 15:4694. [PMID: 38139946 PMCID: PMC10747782 DOI: 10.3390/polym15244694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Biodegradable thin films based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and poly(caprolactone diol) (PCL-diol) blend were developed using the solution casting method. PHBV is biodegradable, biocompatible, and produced naturally by bacterial activity, but its use is restricted by high crystallinity and low resistance to thermal degradation with melting temperatures close to degradation thus narrowing the processing window. Solution casting was chosen as a cost-effective method reducing energy consumption and avoiding thermal degradation during processing. The increase in PCL-diol in blend composition (40-60 wt%) enhances the film-forming ability of PHBV and the wettability along with the decrease in the roughness of the resulting materials as revealed by contact angle measurements, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Optimal composition in terms of filmogenity and surface structure has been achieved by the addition of PCL-diol in the amount of 60 wt%. FTIR confirmed the expected chemical structures with no evidence of chemical interactions between the two polymers.
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Affiliation(s)
- Tamara Erceg
- Faculty of Technology Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia; (S.R.); (B.P.)
| | - Sanja Rackov
- Faculty of Technology Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia; (S.R.); (B.P.)
| | - Pal Terek
- Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia;
| | - Branka Pilić
- Faculty of Technology Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia; (S.R.); (B.P.)
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Râpă M, Stefan LM, Seciu-Grama AM, Gaspar-Pintiliescu A, Matei E, Zaharia C, Stănescu PO, Predescu C. Poly(3-hydroxybutyrate- co-3-hydroxyvalerate) (P(3HB- co-3HV))/Bacterial Cellulose (BC) Biocomposites for Potential Use in Biomedical Applications. Polymers (Basel) 2022; 14:polym14245544. [PMID: 36559911 PMCID: PMC9786213 DOI: 10.3390/polym14245544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The aim of this study was to obtain biocomposites consisting of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), bacterial cellulose (BC) and α-tocopherol by a melt processing technique for potential use in biomedical applications. The melt processing and roughness of biocomposites were evaluated and compared to sample without BC. The degradation rate of PHBV/BC biocomposites was measured in phosphate buffer saline (PBS) by determining the mass variation and evidencing of thermal and structural changes by differential scanning calorimetry (DSC) and attenuated total reflectance-Fourier transformed infrared spectrometry (ATR-FTIR). The cell viability, cell morphology, cell cycle distribution and total collagen content were investigated on murine NCTC fibroblasts. Overall, the adding of BC to polyester matrix led to an adequate melt processing of biocomposites and increased surface roughness and cytocompatibility, allowing the cells to secrete the extracellular matrix (collagen) and stimulate cell proliferation. Results showed that the PHBV/BC biocomposites were favorable for long-term degradation and could be used for the design of medical devices with controlled degradability.
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Affiliation(s)
- Maria Râpă
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Laura Mihaela Stefan
- National Institute of Research and Development for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Ana-Maria Seciu-Grama
- National Institute of Research and Development for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Alexandra Gaspar-Pintiliescu
- National Institute of Research and Development for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Ecaterina Matei
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Cătălin Zaharia
- Advanced Polymer Materials Group, Faculty of Chemical Engineering and Biotechnology, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Paul Octavian Stănescu
- Advanced Polymer Materials Group, Faculty of Chemical Engineering and Biotechnology, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Cristian Predescu
- Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
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Ding Z, Kumar V, Sar T, Harirchi S, Dregulo AM, Sirohi R, Sindhu R, Binod P, Liu X, Zhang Z, Taherzadeh MJ, Awasthi MK. Agro waste as a potential carbon feedstock for poly-3-hydroxy alkanoates production: Commercialization potential and technical hurdles. BIORESOURCE TECHNOLOGY 2022; 364:128058. [PMID: 36191751 DOI: 10.1016/j.biortech.2022.128058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
The enormous production and widespread applications of non -biodegradable plastics lead to their accumulation and toxicity to animals and humans. The issue can be addressed by the development of eco-friendly strategies for the production of biopolymers by utilization of waste residues like agro residues. This will address two societal issues - waste management and the development of an eco-friendly biopolymer, poly-3-hydroxy alkanoates (PHAs). Strategies adopted for utilization of agro-residues, challenges and future perspectives are discussed in detail in this comprehensive review. The possibility of PHA properties improvements can be increased by preparation of blends.
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Affiliation(s)
- Zheli Ding
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences (CATAS), Haikou, Hainan Province 571101, China
| | - Vinay Kumar
- Department of Community Medicine, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam 602105, India
| | - Taner Sar
- Swedish Centre for Resource Recovery, University of Borås, Borås 50190, Sweden
| | - Sharareh Harirchi
- Swedish Centre for Resource Recovery, University of Borås, Borås 50190, Sweden
| | - Andrei Mikhailovich Dregulo
- Institute for Regional Economy Problems of the Russian Academy of Sciences (IRES RAS), 38 Serpukhovskaya str, 190013 Saint-Petersburg, Russia
| | - Ranjna Sirohi
- Department of Food Technology, School of Health Sciences & Technology, University of Petroleum and Energy Studies, Dehradun 248 007, India
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam 691505, Kerala, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695019, Kerala, India
| | - Xiaodi Liu
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences (CATAS), Haikou, Hainan Province 571101, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | | | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
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A Review on Biological Synthesis of the Biodegradable Polymers Polyhydroxyalkanoates and the Development of Multiple Applications. Catalysts 2022. [DOI: 10.3390/catal12030319] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Polyhydroxyalkanoates, or PHAs, belong to a class of biopolyesters where the biodegradable PHA polymer is accumulated by microorganisms as intracellular granules known as carbonosomes. Microorganisms can accumulate PHA using a wide variety of substrates under specific inorganic nutrient limiting conditions, with many of the carbon-containing substrates coming from waste or low-value sources. PHAs are universally thermoplastic, with PHB and PHB copolymers having similar characteristics to conventional fossil-based polymers such as polypropylene. PHA properties are dependent on the composition of its monomers, meaning PHAs can have a diverse range of properties and, thus, functionalities within this biopolyester family. This diversity in functionality results in a wide array of applications in sectors such as food-packaging and biomedical industries. In order for PHAs to compete with the conventional plastic industry in terms of applications and economics, the scale of PHA production needs to grow from its current low base. Similar to all new polymers, PHAs need continuous technological developments in their production and material science developments to grow their market opportunities. The setup of end-of-life management (biodegradability, recyclability) system infrastructure is also critical to ensure that PHA and other biobased biodegradable polymers can be marketed with maximum benefits to society. The biobased nature and the biodegradability of PHAs mean they can be a key polymer in the materials sector of the future. The worldwide scale of plastic waste pollution demands a reformation of the current polymer industry, or humankind will face the consequences of having plastic in every step of the food chain and beyond. This review will discuss the aforementioned points in more detail, hoping to provide information that sheds light on how PHAs can be polymers of the future.
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Addressing the Needs of the Rapidly Aging Society through the Development of Multifunctional Bioactive Coatings for Orthopedic Applications. Int J Mol Sci 2022; 23:ijms23052786. [PMID: 35269928 PMCID: PMC8911303 DOI: 10.3390/ijms23052786] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 02/27/2022] [Accepted: 02/28/2022] [Indexed: 12/15/2022] Open
Abstract
The unprecedented aging of the world's population will boost the need for orthopedic implants and expose their current limitations to a greater extent due to the medical complexity of elderly patients and longer indwelling times of the implanted materials. Biocompatible metals with multifunctional bioactive coatings promise to provide the means for the controlled and tailorable release of different medications for patient-specific treatment while prolonging the material's lifespan and thus improving the surgical outcome. The objective of this work is to provide a review of several groups of biocompatible materials that might be utilized as constituents for the development of multifunctional bioactive coatings on metal materials with a focus on antimicrobial, pain-relieving, and anticoagulant properties. Moreover, the review presents a summary of medications used in clinical settings, the disadvantages of the commercially available products, and insight into the latest development strategies. For a more successful translation of such research into clinical practice, extensive knowledge of the chemical interactions between the components and a detailed understanding of the properties and mechanisms of biological matter are required. Moreover, the cost-efficiency of the surface treatment should be considered in the development process.
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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]
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Biopolymers: Global Carbon Footprint and Climate Change. Biopolymers 2022. [DOI: 10.1007/978-3-030-98392-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alhanish A, Abu Ghalia M. Developments of biobased plasticizers for compostable polymers in the green packaging applications: A review. Biotechnol Prog 2021; 37:e3210. [PMID: 34499430 DOI: 10.1002/btpr.3210] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/03/2021] [Accepted: 09/08/2021] [Indexed: 12/15/2022]
Abstract
The demand for biobased materials for various end-uses in the bioplastic industry is substantially growing due to increasing awareness of health and environmental concerns, along with the toxicity of synthetic plasticizers such as phthalates. This fact has stimulated new regulations requiring the replacement of synthetic conventional plasticizers, particularly for packaging applications. Biobased plasticizers have recently been considered as essential additives, which may be used during the processing of compostable polymers to enormously boost biobased packaging applications. The development and utilization of biobased plasticizers derived from epoxidized soybean oil, castor oil, cardanol, citrate, and isosorbide have been broadly investigated. The synthesis of biobased plasticizers derived from renewable feedstocks and their impact on packaging material performance have been emphasized. Moreover, the effect of biobased plasticizer concentration, interaction, and compatibility on the polymer properties has been examined. Recent developments have resulted in the replacement of synthetic plasticizers by biobased counterparts. Particularly, this has been the case for some biodegradable thermoplastics-based packaging applications.
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Affiliation(s)
- Atika Alhanish
- Department of Chemical Engineering, Faculty of Petroleum and Natural Gas Engineering, University of Zawia, Zawia, Libya
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