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Morphology and crystallization behaviour of polyhydroxyalkanoates-based blends and composites: A review. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Vishnu Chandar J, Mutharasu D, Mohamed K, Marsilla KIK, Shanmugan S, Azlan AA. High thermal conductivity, UV-stabilized poly(3-hydroxybutyrate-co-3-hydroxyvalerate) hybrid composites for electronic applications: effect of different hybrid fillers on structural, thermal, optical, and mechanical properties. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1888990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- J. Vishnu Chandar
- SchooSl of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - D. Mutharasu
- PTDI-SSD, Western Digital Corporation, MCoE, Seberang Perai Selatan, Malaysia
| | - K. Mohamed
- SchooSl of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - K. I. K. Marsilla
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - S. Shanmugan
- School of Physics, Universiti Sains Malaysia (USM), Minden, Malaysia
| | - A. A. Azlan
- School of Physics, Universiti Sains Malaysia (USM), Minden, Malaysia
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Turco R, Santagata G, Corrado I, Pezzella C, Di Serio M. In vivo and Post-synthesis Strategies to Enhance the Properties of PHB-Based Materials: A Review. Front Bioeng Biotechnol 2021; 8:619266. [PMID: 33585417 PMCID: PMC7874203 DOI: 10.3389/fbioe.2020.619266] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022] Open
Abstract
The transition toward "green" alternatives to petroleum-based plastics is driven by the need for "drop-in" replacement materials able to combine characteristics of existing plastics with biodegradability and renewability features. Promising alternatives are the polyhydroxyalkanoates (PHAs), microbial biodegradable polyesters produced by a wide range of microorganisms as carbon, energy, and redox storage material, displaying properties very close to fossil-fuel-derived polyolefins. Among PHAs, polyhydroxybutyrate (PHB) is by far the most well-studied polymer. PHB is a thermoplastic polyester, with very narrow processability window, due to very low resistance to thermal degradation. Since the melting temperature of PHB is around 170-180°C, the processing temperature should be at least 180-190°C. The thermal degradation of PHB at these temperatures proceeds very quickly, causing a rapid decrease in its molecular weight. Moreover, due to its high crystallinity, PHB is stiff and brittle resulting in very poor mechanical properties with low extension at break, which limits its range of application. A further limit to the effective exploitation of these polymers is related to their production costs, which is mostly affected by the costs of the starting feedstocks. Since the first identification of PHB, researchers have faced these issues, and several strategies to improve the processability and reduce brittleness of this polymer have been developed. These approaches range from the in vivo synthesis of PHA copolymers, to the enhancement of post-synthesis PHB-based material performances, thus the addition of additives and plasticizers, acting on the crystallization process as well as on polymer glass transition temperature. In addition, reactive polymer blending with other bio-based polymers represents a versatile approach to modulate polymer properties while preserving its biodegradability. This review examines the state of the art of PHA processing, shedding light on the green and cost-effective tailored strategies aimed at modulating and optimizing polymer performances. Pioneering examples in this field will be examined, and prospects and challenges for their exploitation will be presented. Furthermore, since the establishment of a PHA-based industry passes through the designing of cost-competitive production processes, this review will inspect reported examples assessing this economic aspect, examining the most recent progresses toward process sustainability.
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Affiliation(s)
- Rosa Turco
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Gabriella Santagata
- Institute for Polymers, Composites and Biomaterials, National Council of Research, Pozzuoli, Italy
| | - Iolanda Corrado
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Cinzia Pezzella
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Martino Di Serio
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
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Non-Isothermal Crystallization Kinetics of Injection Grade PHBV and PHBV/Carbon Nanotubes Nanocomposites Using Isoconversional Method. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4020052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Carbon nanotubes (CNT)-reinforced polymeric composites are being studied as promising materials due to their enhanced properties. However, understanding the behavior of polymers during non-isothermal crystallization is important once the degree of crystallinity and crystallization processes are affected when nanoparticles are added to matrices. Usually, crystallization kinetics studies are performed using a model-fitting method, though the isoconversional method allows to obtain the kinetics parameter without assuming a crystallization model. Therefore, in this work, CNTs were oxidized (CNT-Ox) and functionalized with gamma-aminobutyric acid (GABA) (CNT-GB) and incorporated into a poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) matrix. The influence of the addition and functionalization of CNT in the crystallization kinetics of PHBV was evaluated using the isoconversional method with differential scanning calorimetry (DSC), and by polarized light optical microscopy (PLOM) and Shore D hardness. The incorporation and functionalization of CNT into PHBV matrix did not change the Šesták and Berggren crystallization model; however, the lowest activation energy was obtained for the composite produced with CNT-GB, suggesting a better dispersion into the PHBV matrix. PLOM and Shore D hardness confirmed the results obtained in the kinetics study, showing the smallest crystallite size for CNT-containing nanocomposites and the highest hardness value for the composite produced with CNT-GB.
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Li F, Yu HY, Wang YY, Zhou Y, Zhang H, Yao JM, Abdalkarim SYH, Tam KC. Natural Biodegradable Poly(3-hydroxybutyrate- co-3-hydroxyvalerate) Nanocomposites with Multifunctional Cellulose Nanocrystals/Graphene Oxide Hybrids for High-Performance Food Packaging. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10954-10967. [PMID: 31365242 DOI: 10.1021/acs.jafc.9b03110] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
High-performance and useful graphene oxide (GO) and cellulose nanocrystals (CNCs) are easily extracted from natural graphite and cellulose raw materials, and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is produced by bacterial fermentation from natural plant corn stalks, etc. In this study, novel ternary nanocomposites consisting of PHBV/cellulose nanocrystal-graphene oxide nanohybrids were prepared via a simple solution casting method. The synergistic effect of CNC with GO nanohybrids obtained by chemical grafting (CNC-GO, covalent bonds) and physical blending (CNC/GO, noncovalent bonds) on the physicochemical properties of PHBV nanocomposites was evaluated and the results compared with a single component nanofiller (CNC or GO) in binary nanocomposites. More interestingly, ternary nanocomposites displayed the highest thermal stability and mechanical properties. Compared to neat PHBV, the tensile strength and elongation to break increased by 170.2 and 52.1%, respectively, and maximum degradation temperature (Tmax) increment by 26.3 °C, were observed for the ternary nanocomposite with 1 wt % covalent bonded CNC-GO. Compared to neat PHBV, binary, and 1:0.5 wt % noncovalent CNC/GO based nanocomposites, the ternary nanocomposites with 1 wt % covalent bonded CNC-GO exhibited excellent barrier properties, good antibacterial activity (antibacterial ratio of 100.0%), reduced barrier properties, and lower migration level for both food simulants. Such a synergistic effect yielded high-performance ternary nanocomposites with great potential for bioactive food packaging materials.
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Affiliation(s)
- Fang Li
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
| | - Hou-Yong Yu
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo , Ontario N2L 3G1 , Canada
| | - Yan-Yan Wang
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
| | - Ying Zhou
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
| | - Heng Zhang
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
| | - Ju-Ming Yao
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
| | - Somia Yassin Hussain Abdalkarim
- The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textile , Zhejiang Sci-Tech University , Xiasha Higher Education Park Avenue 2 No. 928 , Hangzhou 310018 , China
| | - Kam Chiu Tam
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology , University of Waterloo , 200 University Avenue West , Waterloo , Ontario N2L 3G1 , Canada
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Formulation and characterization of a novel PHBV nanocomposite for bone defect filling and infection treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:110004. [PMID: 31500052 DOI: 10.1016/j.msec.2019.110004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/07/2019] [Accepted: 07/19/2019] [Indexed: 01/12/2023]
Abstract
Biodegradable materials that combine bioactivity with sustained drug release have been proved promising for the treatment and prophylaxis of bone infection. In this work, injection-molded nanocomposites were formulated from poly(3-hydroxybutyrate-co-3-6%hydroxyvalerate) (PHBV), nanodiamond (nD) and nanohydroxyapatite (nHA) loaded with vancomycin (VC). The components were compounded using a rotary evaporator (PHBV/nHA/VC/nD-R) or a spray-dryer (PHBV/nHA/VC/nD-SD). The nanoparticles acted as a nucleating agent, increasing PHBV crystallinity from 57.1% to up to 73.3% (PHBV/nHA/VC/nD-SD). The nHA particles were found to be well distributed on the formulations fracture surface observed by SEM-EDS micrographs. PHBV/nHA/VC/nD-SD presented higher glass transition temperature (18.1 vs 14.8 °C) and stronger interface than PHBV/nHA/VC/nD-R, as determined by dynamic mechanical analysis (DMA). Furthermore, the incorporation of nanoparticles increased PHBV flexural elastic modulus by 34% and match the reported for human bone. Both systems were able to present a sustained release of VC for 22 days, reaching 7.1 ± 1.3%(PHBV/nHA/VC/nD-R) and 4.8 ± 0.6% (PHBV/nHA/VC/nD-SD). VC presented antibacterial activity even after being processed at 178 °C in an injection molding machine. Moreover, in vitro assays showed a good adhesion and growth of cells on the specimens and suggested a non-cytotoxic and non-cytostatic behavior. These findings indicate that these systems can be further explored as bone defect filling material.
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Wang L, Guo Y, Chen Y, Chen T, Zhu S, Zhang T, Liu S. Enhanced Mechanical and Water Absorption Properties of Rice Husk-Derived Nano-SiO₂ Reinforced PHBV Composites. Polymers (Basel) 2018; 10:polym10091022. [PMID: 30960946 PMCID: PMC6403758 DOI: 10.3390/polym10091022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 11/16/2022] Open
Abstract
Poly(3-hydroxybutyrate⁻co⁻3-hydroxyvalerate) (PHBV) is a biodegradable polymer and has several potential applications. Herein, we have used a rich biomass resource, rice husk, to obtain rice husk nano-SiO₂ (RHNS) and prepared RHNS/PHBV composites by using hot-press molding. The results showed that the amorphous nature of spherical nano-SiO₂ particles with an average diameter of 40⁻80 nm was obtained. The tensile strength and flexural strength of the RHNS/PHBV-3 composite reached up to 23.515 and 75.669 MPa, respectively, corresponding to an increase of 33.65% and 15.54% as compared to pure PHBV. The enhanced mechanical properties of the RHNS/PHBV composite can be attributed to the uniform dispersion and strong interfacial bonding of RHNS with the PHBV matrix. In addition, the water absorption rate of the RHNS/PHBV composite increased from 0.26% to 0.35% and the water swelling ratio followed the given order in different directions: thickness > width > length. Furthermore, the initial degradation temperature and residual rate of combustion at 700 °C of the composites increased with higher content of RHNS, which represents the enhanced thermal stability of RHNS/PHBV composites. In summary, RHNS served as an excellent reinforcement and RHNS/PHBV composites have shown promising properties for various potential applications.
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Affiliation(s)
- Li Wang
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
| | - Yong Guo
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
| | - Yuxia Chen
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
| | - Tong Chen
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
| | - Shiliu Zhu
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
| | - Tingting Zhang
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
| | - Shengquan Liu
- College of Forest and Garden, Anhui Agricultural University, Hefei 230036, China.
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Keskin G, Kızıl G, Bechelany M, Pochat-Bohatier C, Öner M. Potential of polyhydroxyalkanoate (PHA) polymers family as substitutes of petroleum based polymers for packaging applications and solutions brought by their composites to form barrier materials. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0401] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Today, there is an increasing concern about protection of ecological systems. Petro-based synthetic polymers are not biodegradable and cause environmental pollution. These polymers that are stuck in nature, affect wildlife adversely. Also, in future petrochemical materials will drain away and demand for eco-friendly plastics which can substitute synthetic plastics will increase. Biopolymers are products which can be degraded by enzymatic activities of various microorganisms, and the degradation products are nontoxic. They are attractive alternatives to non-degradable materials in short-term applications such as packaging. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a member of polyhydroxyalkanoate (PHA) family which is biodegradable and produced by microorganism. It has good gas barrier properties that make it convenient to use in different applications. The present paper gives an overview on PHAs and their composites, their main properties, with a specific focus on potential applications of PHBV in packaging.
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Stieven Montagna L, Amaral Montanheiro TLD, Chiodi Borges A, Yumi Koga-Ito C, Paula Lemes A, Cerqueira Rezende M. Biodegradation of PHBV/GNS nanocomposites byPenicillium funiculosum. J Appl Polym Sci 2016. [DOI: 10.1002/app.44234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Larissa Stieven Montagna
- Department of Science and Technology, Group of Polymers and Macromolecules; Federal University of São Paulo (UNIFESP); São José Dos Campos/SP Brazil
| | - Thaís Larissa do Amaral Montanheiro
- Department of Science and Technology, Group of Polymers and Macromolecules; Federal University of São Paulo (UNIFESP); São José Dos Campos/SP Brazil
| | - Aline Chiodi Borges
- Department of Environmental Engineering; São Paulo State University (UNESP), Institute of Science and Technology; São José Dos Campos/SP Brazil
| | - Cristiane Yumi Koga-Ito
- Department of Environmental Engineering; São Paulo State University (UNESP), Institute of Science and Technology; São José Dos Campos/SP Brazil
| | - Ana Paula Lemes
- Department of Science and Technology, Group of Polymers and Macromolecules; Federal University of São Paulo (UNIFESP); São José Dos Campos/SP Brazil
| | - Mirabel Cerqueira Rezende
- Department of Science and Technology, Group of Polymers and Macromolecules; Federal University of São Paulo (UNIFESP); São José Dos Campos/SP Brazil
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Dyshlyuk L, Babich O, Belovа D, Prosekov A. Comparative Analysis of Physical and Chemical Properties of Biodegradable Edible Films of Various Compositions. J FOOD PROCESS ENG 2016. [DOI: 10.1111/jfpe.12331] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lyubov Dyshlyuk
- Department of Bionanotechnology; Kemerovo Technological Institute of Food Industry; 47 Stroiteley Boulevard 650056 Kemerovo Russian Federation
| | - Olga Babich
- Department of Bionanotechnology; Kemerovo Technological Institute of Food Industry; 47 Stroiteley Boulevard 650056 Kemerovo Russian Federation
| | - Daria Belovа
- Department of Bionanotechnology; Kemerovo Technological Institute of Food Industry; 47 Stroiteley Boulevard 650056 Kemerovo Russian Federation
| | - Alexander Prosekov
- Department of Bionanotechnology; Kemerovo Technological Institute of Food Industry; 47 Stroiteley Boulevard 650056 Kemerovo Russian Federation
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