使用 Reed 纤维的复合材料的增强生物降解率
Jia Xu1, Kunpeng Feng1, Yuan Li2
1Xiong'an Institute of Innovation, Baoding 071700, China.
Polymers
|February 10, 2024
概括
将纤维 (RF) 添加到聚乙烯基基合甲酸盐 (PBAT) 中,可以提高其生物降解性. PBAT/RF复合材料在酶溶液和堆肥中降解程度增加,为石油塑料提供了可持续的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 环境科学 环境科学
背景情况:
- 聚乙烯基酸盐-联合甲酸盐 (PBAT) 是一种可生物降解的聚合物,在可持续材料中具有潜在的应用.
- 提高PBAT的可降解性对于扩大其在环保包装和生物医学应用中的使用至关重要.
研究的目的:
- 研究纤维 (RF) 添加对PBAT酶和堆肥降解的影响.
- 分析PBAT/RF复合材料的材料特性和降解机制的变化.
主要方法:
- 通过将PBAT与RF混合而成的复合制剂.
- 使用脂酶,细胞酶,蛋白酶K和酶进行15天的酶降解研究.
- 在受控堆肥条件下进行生物降解评估91天.
- 使用分析平衡,FTIR,SEM和DSC进行材料表征.
主要成果:
- 与纯PBAT相比,PBAT/RF复合材料表现出增加的表面水友性和增强的降解能力.
- 脂酶对酶降解产生了最显著的影响,PBAT/RF显示体重减轻率更高.
- 堆肥研究显示,PBAT/RF.的滞后阶段减少 (23.8%的减少) 和生物降解率增加 (11.8%的增加).
- SEM分析显示PBAT/RF的表面裂和孔隙增加,促进微生物相互作用.
结论:
- 加入 Reed 纤维显著提高了 PBAT 通过酶和堆肥途径的可降解性.
- PBAT/RF复合材料是一个有希望的可持续材料,可以在各种应用中取代传统的塑料.
- 增强的降解归因于增加的水友性和表面形态变化,促进微生物活动.
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