Article
Polymer Science
Nomvuyo Nomadolo, Omotola Esther Dada, Andri Swanepoel, Teboho Mokhena, Sudhakar Muniyasamy
Summary: The aim of this study was to evaluate the rate and mechanisms of aerobic biodegradation of biopolymer blends under controlled composting conditions. The results showed that the biopolymer blends degraded faster under industrial composting conditions and underwent changes in structural, chemical, thermal and morphological characteristics.
Article
Materials Science, Composites
Sommai Pivsa-Art, Weraporn Pivsa-Art
Summary: This study experimentally synthesized bamboo fiber-reinforced biocomposites using bamboo fiber as filler and PBS as biodegradable polymer matrix. The research found that treated BF increased the tensile strength of the biocomposites, while higher BF content led to decreased elongation at break and increased Young's modulus. The biocomposites are suitable for packaging and indoor furniture parts.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Raja Venkatesan, Krishnapandi Alagumalai, Seong-Cheol Kim
Summary: The study finds that the biodegradable polymer PBAT can be improved by blending with kaolin clay to form composites. The structure and morphology of the composites were evaluated using FTIR, XRD, SEM, and TEM. TGA analysis shows that the PBAT composite with 5.0 wt% kaolin clay exhibits the best characteristics. Compared to pure PBAT, the PBAT/kaolin composites have higher tensile strength and lower oxygen and water vapor transmission rates. The antimicrobial property of the composites inhibits the growth of bacteria, making them potential packaging materials for extending the shelf life of food.
Article
Engineering, Multidisciplinary
Jittiwat Nithikarnjanatharn, Namfon Samsalee
Summary: This study investigated the effects of poly(butylene-succinate) (PBS) and cassava pulp (CP) at different particle sizes on the properties of PBS/CP biocomposites. The results showed that the addition of CP improved the hardness and Young's modulus of the biocomposites, but decreased their tensile strength and impact strength. The use of CP with a particle size of 250 μm resulted in better particle dispersion and compatibility. A CP content of 40% showed the best biodegradability.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Agricultural Engineering
You-Yong Wang, Yue Wang, Weibin Zhu, Di Lan, Yong-Ming Song
Summary: Development of high-performance, environmentally friendly polylactide (PLA) foam, to replace petroleum-based polymer foam, is crucial for promoting sustainable and green development. The introduction of flexible poly (butylene adipate-co-butylene terephthalate) (PBAT) into the PLA/wood fiber composite improves the crystallization kinetics and melt elasticity, resulting in improved foamability of the composite.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Materials Science, Multidisciplinary
Seo-Hwa Hong, Seok-Ho Hwang
Summary: In this study, high-content lignin-reinforced poly(butylene adipate-co-terephthalate) (PBAT) biocomposites were successfully constructed, and the thermal, mechanical, and foaming properties were investigated. The results showed that the addition of lignin increased the crystallization temperature and affected the foam structure. Therefore, this high-content lignin-reinforced material can be used as a sustainable foam packaging material.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Tianqi Yue, Huanbo Wang, Yuan Fu, Shiyu Guo, Xuefeng Zhang, Tian Liu
Summary: In this study, TiO2-incorporated RS/PBS biocomposites were prepared with different TiO2 powder loadings, with 1% TiO2 showing the best mechanical and crystallization properties. Both rice straw fiber and TiO2 acted as nucleating agents for PBS, improving its crystallization and mechanical properties significantly.
Article
Biochemistry & Molecular Biology
Xiangyu Wang, Hongwei Pan, Shiling Jia, Zepeng Wang, Hanlin Tian, Lijing Han, Huiliang Zhang
Summary: Poly(butylene succinate-co-terephthalate) (PBST) copolyester is a new type of biodegradable synthetic polymer material, but it has low strength. By blending PBST with high-strength and high-modulus polylactic acid (PLA) and modifying it with chain extender ADR-4370, the strength and compatibility of PBST can be improved.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Polymer Science
C. Loyer, G. Regnier, V Duval, E. Richaud
Summary: This paper investigates the hydrolysis of several PBT materials, including pigmented and non-pigmented ones. The study proposes a kinetic model for chain scission rate and highlights the aggravating role of carbon black in the degradation process.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Polymer Science
Corrado Sciancalepore, Elena Togliatti, Alberto Giubilini, Diego Pugliese, Fabrizio Moroni, Massimo Messori, Daniel Milanese
Summary: This study reports the preparation and characterization of PBAT-based composites reinforced with CPG particles. The composites showed improved mechanical properties and lower oxygen permeability compared to the pristine polymer. SEM and IR analysis confirmed the homogeneous dispersion of the filler particles in the polymer matrix. The developed materials are biodegradable and can be used as eco-friendly alternatives to traditional thermoplastic polymers.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Manufacturing
Chiara Zarna, Sandra Rodriguez-Fabia, Andreas T. Echtermeyer, Gary Chinga-Carrasco
Summary: This study explores the potential of wood fiber reinforced fillers in shape-changing 3D printing (4D printing). The results show that the addition of different additives to thermomechanical pulp fibers has a significant impact on fiber morphology and material properties. Using hot water as a stimulus, the study also found that 3D printed specimens with milled thermomechanical pulp fibers have higher tensile strength and shape-changing ability compared to specimens with thermomechanical pulp fiber granulate.
ADDITIVE MANUFACTURING
(2022)
Review
Polymer Science
Serena Coiai, Maria Laura Di Lorenzo, Patrizia Cinelli, Maria Cristina Righetti, Elisa Passaglia
Summary: Poly(lactic acid) (PLA) is a widely produced biobased, biodegradable and biocompatible polyester. Although it shares similarities with petroleum-based polymers, its high brittleness and low toughness limit its utilization, prompting the blending with other biobased and biodegradable polymers. By incorporating appropriate additives and solid nanoparticles, the toughness and ductility of PLA can be improved, enhancing its mechanical performance, thermal stability and gas/vapor barrier properties.
Article
Polymer Science
Akihiko Toda, Yoshitomo Furushima, Christoph Schick
Summary: The relationship between changes in crystallization kinetics and crystal domains of poly(butylene terephthalate) was investigated under isothermal conditions. The study found that the nucleation and growth kinetics of the crystal domains exhibited a continuous change within a certain temperature range. This change corresponded to the nucleation mode for spherical domains, such as spherulites and nodules, which depended on whether nucleation occurred from foreign heterogeneities or from the homogeneous melt. The morphology of the crystal domains, specifically the size and formation of spherulites and granular nodules, was identified as a factor contributing to the changes in crystallization kinetics.
Article
Polymer Science
Akihiko Toda, Yoshitomo Furushima, Christoph Schick
Summary: The relationship between the changes in the crystallization kinetics and the crystal domains of poly(butylene terephthalate) was investigated under isothermal conditions. The Avrami exponent n characterizing the nucleation and growth kinetics of the crystal domains exhibited a continuous change within the target temperature range, indicating a change in the nucleation mode for spherical domains. The morphology of the crystal domains responsible for this change was identified, with a continuous change in the size of spherulites observed. The formation of 10 nm scale granular nodules with high nuclei density at low temperatures was also observed.
Article
Biochemistry & Molecular Biology
Wei Wu, Jingshu Huang, Wanjing Zhao, Qunchao Zhang, Xianwu Cao, Xiaolei Li, Robert K. Y. Li
Summary: In this study, a novel hyper-branched polysiloxane (HBPSi) was synthesized and utilized to modify lignin (lignin@HBPSi) as a biocompatibilizer for PLA/PBAT blends. The incorporation of lignin@HBPSi improved the interfacial compatibility and processing ability of the blends. The resulting composite exhibited superior toughness, enhanced tensile stress, and good UV-shielding properties, making it suitable for packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)