脚床材料在不同条件下的环境退化
Asis Patnaik1, Sudhakar Muniyasamy2,3, Ashvani Goyal4
1Department of Clothing and Textile Technology, Faculty of Engineering and the Built Environment, Cape Peninsula University of Technology, Cape Town 7535, South Africa.
Polymers
|December 11, 2025
概括
这项研究检查了回收聚 (RPET),大麻和劣质脚床材料的环境退化. 大麻的非生物降解速度更快,而RPET在土壤和堆肥中表现出优越的物理性能和生物降解潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 聚合物科学 聚合物科学
背景情况:
- 聚合物材料对于鞋子脚至关重要,但与其他应用相比,它们的环境退化行为尚未得到充分研究.
- 现有的聚合物材料研究往往侧重于地质织品和绝缘材料,缺乏对脚床应用的具体见解.
- 了解人工气候变化和物理化学因素对脚床材料的影响对于评估环境影响至关重要.
研究的目的:
- 为了研究三种针孔非织造脚床材料的人工气候变化和环境退化行为:回收聚 (RPET),大麻和劣质.
- 分析物理化学因素和暴露时间对这些脚床材料降解的影响.
- 评估RPET脚床在土壤和堆肥条件下的生物降解.
主要方法:
- 足床材料 (RPET,大麻,劣质) 经过120,240和360小时的人造气候.
- 使用富里埃变换红外光谱 (FTIR),差分扫描热量计 (DSC) 和热重力测量分析 (TGA) 进行物理化学性质的特征.
- 评估了RPET在土壤和堆肥中的生物降解120天,测量了进化的CO2,并测试了抗拉力和磨损的耐力.
主要成果:
- 大麻脚床在120小时后呈现非生物降解,而RPET在360小时后由于协同化学和水解效应而降解.
- RPET表现出最高的抗拉力 (50.74851.44N) 和耐磨性,其次是大麻和劣质.
- 在110天后,RPET生物降解在土壤中产生20%的二氧化碳,在堆肥中产生59%的二氧化碳,这表明了重要的生物降解潜力.
结论:
- 与RPET和劣质材料相比,大麻脚床材料的非生物降解率更高.
- RPET脚床具有卓越的机械性能和生物降解能力,使其成为一个有希望的可持续选择.
- 无生物和生物条件的综合影响显著影响自然环境中的脚床材料的整体生物降解.
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