通过溶液造技术开发带有和乙处理的亚麻和大麻填充剂的多乳酸片
Anamol Pokharel1, Kehinde James Falua1, Amin Babaei-Ghazvini1
1Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada.
Polymers
|April 13, 2024
概括
这项研究改进了使用经过处理的麻和亚麻纤维的聚 (乳酸) 复合材料,提高了工业应用的机械性能和稳定性.
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
- 农业科学 农业科学
背景情况:
- 聚乳酸 (PLA) 对水分敏感,在高温下变形,限制了其应用.
- 在将PLA与植物纤维混合时,填充剂-矩阵接口的差异是一个挑战.
- 自然纤维的表面修改可以改善复合材料的性能.
研究的目的:
- 通过创建多 (乳酸) 复合物来增强农业副产品的附加值.
- 研究表面修饰 (乙化和性处理) 对大麻和亚麻纤维的影响.
- 描述开发的复合膜的光谱,物理和机械性能.
主要方法:
- 溶液造技术用于生产复合膜.
- 大麻和亚麻纤维通过乙化和性处理进行了表面修饰.
- 纤维被磨成特定的颗粒大小,并与不同负载 (0-30%) 的聚 (乳酸) 混合.
主要成果:
- 光谱分析证实了特定化学组和相互作用的存在.
- 观察到的最大降解温度是362.5°C.
- 处理的PLA/亚麻复合材料在拉伸强度,破裂延长和在低填充载荷 (2.5-5%) 的Young模量方面显著改善.
- 在不同处理方法中,水蒸气透度有所不同,乙化显示PLA/麻的最高值30.
- 填充剂含量的增加导致了更大的颜色差异和吸收湿度,同时降低了水接触角度.
结论:
- 大麻和亚麻纤维的表面修饰对于改善聚 (乳酸) 复合物特性至关重要.
- 最佳的填充物负载 (约5%重量) 为聚 (乳酸) 复合材料提供了稳定的性能妥协.
- 这些亚麻和大麻诱导的多 (乳) 酸复合物为独特的工业应用提供了潜力.
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