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
Materials Science, Multidisciplinary
Melissa A. Maurer-Jones, Ellen M. Monzo
Summary: This study quantified the photochemically induced molecular transformations of PBAT polymer by analyzing reaction rate constants and yields of primary photochemical pathways. Various analytical techniques were used to identify molecular moieties and quantify reactions, leading to a better understanding of environmental transformations of polymers and guiding the design and use of such technologies.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Zheng Zhang, Ting Li, Xuhui Zhang, Jing Huang, Bihua Xia, Jie Jiang, Mingqing Chen, Weifu Dong, Yang Wang
Summary: The increased demand for environmental protection and sustainable development has led to the development of renewable and biodegradable materials in packaging and agriculture. Poly(butylene adipate-co-terephthalate) (PBAT) is a popular polyester material with good mechanical properties and processability. However, it has poor barrier properties and light aging resistance. To overcome these shortcomings, Ti-dopamine (TiDA) nanoparticles were synthesized and blended with PBAT. The resulting PBAT composite films showed improved barrier properties, light resistance, and aging resistance.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Wenlong Li, Ce Sun, Changxin Li, Yizhuo Xu, Haiyan Tan, Yanhua Zhang
Summary: Biodegradable composite films of PLA and PBAT were prepared by a co-precipitation and hot-pressing method, showing improved mechanical properties and UV barrier properties upon the addition of 4%wt PBAT. The potential for UV screening packaging applications is high due to the excellent thermal stability and satisfactory mechanical properties of the composite films.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Janetty J. P. Barros, Rene R. Oliveira, Carlos B. B. Luna, Renate M. R. Wellen, Esperidiana A. B. Moura
Summary: In this study, modified lignin and biodegradable polymer PBAT/PLA were used to produce agriculture mulch films, and their properties were characterized and tested. The results showed that the addition of irradiated lignin improved the compatibility between PBAT/PLA and lignin, and enhanced the mechanical properties and UV-blocking performance of the films.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Multidisciplinary Sciences
Yu Yang, Jian Min, Ting Xue, Pengcheng Jiang, Xin Liu, Rouming Peng, Jian-Wen Huang, Yingying Qu, Xian Li, Ning Ma, Fang-Chang Tsai, Longhai Dai, Qi Zhang, Yingle Liu, Chun-Chi Chen, Rey-Ting Guo
Summary: The researchers demonstrate that cutinases are highly potent enzymes that can completely decompose PBAT films in 48 hours. By applying a double mutation strategy, the engineered cutinases exhibit higher decomposition rates and produce TPA as a major end-product, which is beneficial for the future recycling economy. The crystal structures of wild type and double mutation of a cutinase from Thermobifida fusca are solved, elucidating their substrate-binding modes and proposing the mechanism of cutinase-mediated PBAT degradation.
NATURE COMMUNICATIONS
(2023)
Article
Biotechnology & Applied Microbiology
Wei-Sung Tseng, Min-Jia Lee, Jin-An Wu, Shin-Liang Kuo, Sheng-Lung Chang, Shu-Jiuan Huang, Chi-Te Liu
Summary: In this study, four PBAT-degrading fungal strains were isolated and a prominent degradation rate was observed in Purpureocillium lilacinum strain BA1S. The lipolytic enzyme activities and cutinase gene of BA1S were induced in the presence of PBAT. Intracellular cytochrome P450 (CYP) monooxygenase and CreA-mediated carbon catabolite repression were also found to be involved in the degradation process.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
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
Polymer Science
Xionggang Wang, Lingna Cui, Shuhong Fan, Xia Li, Yuejun Liu
Summary: Magnesium oxide nanoparticles modified with cetrimonium bromide can be used as an additive in antibacterial packaging materials to improve thermal stability and tensile strength. However, high loading of MgO@CTAB may lead to aggregation, affecting the material performance.
Article
Polymer Science
Chuanhui Zhang, Chao Chen, Chunping Ouyang, Xiangbin Zeng, Zhilong Guo, Fenghua Lai, Jianjun Li
Summary: Aliphatic and aliphatic-aromatic polyesters are widely used in food packaging, with a particular focus on volatile organic compounds (VOCs). This study utilized various analytical techniques to investigate the presence of cyclic esters, a type of VOC, in poly (butylene succinate) (PBS) and poly (butylene adipate-co-terephthalate) (PBAT). The results showed that the cyclic esters varied in repeating unit length and were influenced by different reaction conditions.
Article
Polymer Science
Wen Lin, Yujin Zhao, Tingting Su, Zhanyong Wang
Summary: The degradation behavior of PBAT films by different concentrations of Fusarium solani cutinase (FsC) was investigated. It was found that FsC could degrade both the amorphous region and the crystalline region of PBAT films, and its degradation activity was concentration-dependent. High concentration of FsC resulted in significant degradation of PBAT films, while low concentration had less apparent effect. FsC concentration and degradation time did not significantly affect the molecular weight of degraded PBAT.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Bingxue Jiang, Yisong Wang, Zhengqi Peng, Khak Ho Lim, Qingyue Wang, Shengbin Shi, Jieyuan Zheng, Xuan Yang, Pingwei Liu, Wen-Jun Wang
Summary: In this study, PBAT-co-PGA copolyesters were synthesized by tailoring the chain structure of PBAT with the introduction of poly(glycolic acid) (PGA). The PBAT-co-PGAs exhibited improved crystallization ability, mechanical properties, degradation properties, and aging resistance compared to PBAT.
Article
Polymer Science
Deyu Niu, Pengwu Xu, Jiaxuan Li, Weijun Yang, Tianxi Liu, Piming Ma
Summary: This work successfully obtains designable strength and ductility of PGA/PBAT films by tuning the drawing temperature. The films exhibit high tensile strength and remarkable strain hardening at low temperature, high ductility at moderate temperature, and excellent strength, stiffness, and ductility at high temperature.
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
Chemistry, Physical
Janice Caroline Hardt, Michelly Cristina Galdioli Pella, Ana Caroline Reis Meira, Andressa Giombelli Rosenberger, Josiane Caetano, Douglas Cardoso Dragunski
Summary: This study evaluated the potential application of silver sulfadiazine loaded PBAT/PCL microfibers as wound dressings, which exhibited antimicrobial activity and controlled release. The results showed that the fiber diameter and crystallinity were concentration-dependent on the silver sulfadiazine, and the release profile was biphasic with both fast and sustained release.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Composites
Xuezhe Chen, Jiali Chen, Bin Shen, Wenge Zheng
Summary: In this study, high-performance EPEI/CNS composite foams were fabricated using subcritical foaming technology and CNS dip-coating. These composite foams exhibited efficient EMI shielding and high-temperature resistance with low CNS loading.
COMPOSITES COMMUNICATIONS
(2024)
