Modified Composite Biodegradable Mulch for Crop Growth and Sustainable Agriculture

文献类型： 外文期刊

第一作者： Guo, Bo

作者： Guo, Bo;Dong, Boru;Liu, Jialei;Guo, Bo;Zhu, Liyan;He, Xiaochan;Zhou, Xiaojun

作者机构：

关键词： PBAT/PLA-PPC-PTLA biodegradable film; water vapor barrier performance; mechanical property; green sustainable development; "white" plastic pollution

期刊名称：POLYMERS （ 影响因子：5.0； 五年影响因子：5.0 ）

ISSN：

年卷期： 2024 年 16 卷 9 期

页码：

收录情况： SCI

摘要： Using biodegradable films as a substitute for conventional polyolefin films has emerged as a crucial technology to combat agricultural white pollution. To address the shortcomings in the tensile strength, water vapor barrier properties, and degradation period of PBAT-based biodegradable films, this investigation aimed to create a composite film that could improve the diverse properties of PBAT films. To achieve this, a PBAT/PLA-PPC-PTLA ternary blend system was introduced in the study. The system effectively fused PBAT with PLA and PPC, as evidenced by electron microscopy tests showing no apparent defects on the surface and cross-section of the blended film. The developed ternary blend system resulted in a 58.62% improvement in tensile strength, a 70.33% enhancement in water vapor barrier properties, and a 30-day extension of the functional period compared to pure PBAT biodegradable films. Field experiments on corn crops demonstrated that the modified biodegradable film is more suitable for agricultural production, as it improved thermal insulation and moisture retention, leading to a 5.45% increase in corn yield, approaching the yield of traditional polyolefin films.

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