再加工的聚烯复合材料的自然老化,填充了可持续的玉米纤维
Antonio Zilverlan Germano Matos1, Alisson Rodrigues de Oliveira Dias1, Ana Carolina Ferreira Dos Santos Rosa2
1Postgraduate Program in Materials Science and Engineering, Technology Center, Federal University of Piauí, Teresina 64049-550, PI, Brazil.
Polymers
|July 13, 2024
概括
再加工的聚烯复合材料与玉米纤维 (CHF) 显示出对环境退化有更好的耐用性. 加热电压增强增强机械性能,使这些复合材料适合农业容器.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 农业工程 农业工程
背景情况:
- 天然纤维复合材料提供增强的机械性能,以提高性能和耐用性.
- 再加工的聚合物在材料制造中提供了一个可持续的替代品.
- 环境退化会影响材料的完整性和寿命.
研究的目的:
- 评估120天环境退化对再加工用玉米纤维 (CHF) 增强的聚烯 (PP) 复合材料的影响.
- 评估气候条件对这些复合材料的机械性能和结构完整性的影响.
- 为了确定CHF增强PP复合材料在农业容器应用中的适用性.
主要方法:
- 福里埃变换红外光谱 (FTIR) 用于化学分析.
- 热重力测量分析 (TGA) 用于评估热稳定性.
- 光学和扫描电子显微镜 (SEM) 用于形态评估.
- 拉伸测试用于确定机械性能.
主要成果:
- 气候条件显著影响 (p < 0.05) 所有测试系统的机械性能.
- 光降解诱导了表面形态和化学结构的可观测变化.
- 与再加工的PP矩阵相比,玉米纤维 (CHF) 加强减少了对环境退化的敏感性.
结论:
- 用CHF增强的再加工PP复合材料表现出对环境退化增强的抵抗力.
- 这些发现支持使用CHF-PP复合材料用于耐用的农业容器.
- 天然纤维增强是一种可行的策略,可以提高回收聚合物复合材料的寿命.
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