Prediction Model of Photodegradation for PBAT/PLA Mulch Films: Strategy to Fast Evaluate Service Life

Autor: Jiazhuo Xie, Yan Yan, Shaohua Fan, Xiangyu Min, Lei Wang, Xiaoqing You, Xianfei Jia, Geoffrey I. N. Waterhouse, Jing Wang, Jing Xu
Rok vydání: 2022
Předmět:
Zdroj: Environmental Science & Technology. 56:9041-9051
ISSN: 1520-5851
0013-936X
Popis: Eco-friendly biodegradable PBAT/PLA mulch films are attracting increasing interest in sustainable agricultural production. However, currently, little is known about the service life for the PBAT/PLA mulch films. Herein, PBAT/PLA mulch films are subjected to indoor UV-accelerated degradation (UAD) experiments and field cultivation environment degradation (CED) experiments to systematically investigate the relationship between UAD and CED processes. Results demonstrate that 10 days of indoor UAD treatment corresponds to around 120 days aging under outdoor CED conditions. Using eight PBAT/PLA evaluation indicators (haze, elongation at break, tensile strength, gel content, light transmittance, polydispersity index
Databáze: OpenAIRE