Glufosinate Ammonium-Loaded Halloysite Nanotubes for Slow-Release Weeding Polymer Mulch Films

文献类型： 外文期刊

第一作者： Jia, Xianfei

作者： Jia, Xianfei;Zhang, Kun;Wang, Chuanjun;You, Xiaoqing;Yang, Shangshan;Wang, Jiayin;Zhang, Bing;Xu, Jing;Yan, Yan;Wang, Yijia;Zhang, Kun;Xu, Jing;Xie, Jiazhuo

作者机构：

关键词： poly(butylene adipate-co-terephthalate); poly(lactic acid); halloysite nanotubes; glufosinate-ammonium; melt blending; weeding mulching

期刊名称：ACS APPLIED NANO MATERIALS （ 影响因子：5.9； 五年影响因子：5.9 ）

ISSN：

年卷期： 2023 年 6 卷 7 期

页码：

收录情况： SCI

摘要： Improving the performance and giving function to poly(butylene adipate-co-terephthalate) (PBAT)-based biodegrad-able mulch film have always been research hotspots. However, the problems of a translucent PBAT-based film, which decreases in performance over time and is easily damaged by weeds, need to be solved. In this study, 11.17 wt % of the commercial contact herbicide Glufosinate-ammonium (Glu) was loaded into the lumen of halloysite nanotubes (HNTs). The Glu-loaded HNTs (Glu@ HNTs) and other treatment groups were further incorporated into the PBAT/poly(lactic acid) (PLA) composite films by melt blending and blow molding. Results demonstrated that Glu, HNTs, and Glu@HNTs dispersed uniformly in the composite films. Remarkably, while maintaining the original tensile strength of the film, the nominal strain of transverse fracture was increased by 19.6% to 51.2%, and the least water vapor transmission was reduced by 46.7% to 68.5%. Furthermore, the composite films added with Glu@HNTs can successfully kill green bristlegrass and show a good slow-release effect, which can avoid premature release of the herbicide before the weeds grow up. Overall, the combination of inorganic nanofiller-modified PBAT/PLA film and weeding has positive significance for reducing soil pollution and helping the long-term efficient use of biodegradable mulching.

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