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Mechanical and Degradation Properties of Degradable Cover Materials for Sugarcane Leaves

文献类型： 外文期刊

作者： Jiaoa, Jing 1 ; Li, Puwang 3 ; Huang, Xiaohong 1 ; Du, Jihua 1 ; a'e, Zunxiang 1 ; Liu, Xinpeng 4 ; Song, Shuhui 2 ; Zhou, Yirong 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Zhanjiang 524013, Guangdong, Peoples R China

2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524013, Guangdong, Peoples R China

3.Agr Machinery Res Inst, Chinese Acad Trop Agr Sci, Zhanjiang 524013, Guangdong, Peoples R China

4.Zhanjiang Engn & Technol Res Ctr High Efficient Re, Zhanjiang 524091, Guangdong, Peoples R China

5.Key Lab Trop Crops Nutr Hainan Prov, Zhanjiang 524091, Guangdong, Peoples R China

6.Lingnan Normal Univ, Zhanjiang 524048, Guangdong, Peoples R China

关键词： Sugarcane leaves; Degradable; Material properties

期刊名称：BIORESOURCES （ 影响因子：1.3； 五年影响因子：1.5 ）

ISSN： 1930-2126

年卷期： 2024 年 19 卷 3 期

页码：

收录情况： SCI

摘要： Mulch was prepared using composted sugarcane leaves, with polyvinyl alcohol and cationic starch as adhesives, through compression molding. The study aimed to investigate the effects of different adhesives on the mechanical properties, thermal oxidative degradation performance, and biodegradability of the covering materials. The results indicated that, when the adhesive dosage was consistent, cover material A, which utilized polyvinyl alcohol as the adhesive, exhibited higher tensile strength and elongation at break compared to cover material B, which employed a blend of polyvinyl alcohol and cationic starch. Specifically, at an adhesive dosage of 20%, cover material A achieved a tensile strength of 0.46 MPa and an elongation at break of 7.72%, representing the highest values among all experimental groups. There was minimal disparity in the thermal oxidative degradation performance between materials prepared with either adhesive; however, a higher quantity of adhesive led to decreased biodegradability performance. After being buried in soil for 120 days, the degradation exceeded 40% for both materials, resulting in loss of their original shape and strength properties. In conclusion, while sugarcane leaves-based biodegradable materials demonstrate favorable degradation performance, further enhancements are necessary to improve their mechanical properties. These materials have potential applications as substitutes for plastic mulch.

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