全生物基阻燃剂向多功能多乳酸:结晶,阻燃,抗菌和增强机械性能
Yadong Wang1, Jingjing Gao1, Li Ma1
1College of Materials Science and Engineering, Hubei Key Laboratory for New Textile Materials and Applications, Wuhan Textile University, Wuhan 430200, PR China.
International journal of biological macromolecules
|September 22, 2024
概括
这项研究开发了一种绿色阻燃剂 (PCR) 用于聚乳酸 (PLA) 复合材料. 增强的PLA-PCR材料获得了UL-94 V-0等级和改善的机械性能,提供了一个环保的解决方案.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 使用可持续添加剂开发阻燃聚乳酸 (PLA) 复合材料是一项挑战.
- 传统的阻燃剂往往会给环境和健康带来风险.
- 生物塑料需要高效和环保的阻燃解决方案.
研究的目的:
- 设计和合成一种从 phytic 酸,chitosan 和 resveratrol 制成的雾化阻燃剂 (PCR).
- 评估PLA-PCR复合材料的阻燃性和机械性能.
- 探索PCR作为增强PLA性能的环保添加剂的潜力.
主要方法:
- 使用植物酸,奇托和白醇合成了一种新型浸泡式阻燃剂 (PCR).
- 聚乳酸 (PLA) 复合物的制备,其中包含不同量的PCR.
- 使用UL-94测试和限制氧指数 (LOI) 测量来评估阻燃性.
- 评估机械性能,包括抗拉强度,冲击强度和性.
- 分析热性能和加工特性.
主要成果:
- 这种含有4%重量的PCR的PLA-PCR复合物获得了UL-94 V-0评级.
- 纯PLA的LOI从19.7%增加到复合材料的26.0%,而纯PLA的LOI则从19.7%增加到26.0%.
- 峰值释放热量的速度显著下降.
- 拉力强度增加了~16%,冲击强度增加了~73%,性增加了~57%.
- PCR显示出塑化效应,改善了PLA的可加工性.
结论:
- 开发的PCR是一种高效和环保的PLA阻燃剂.
- PLA-PCR复合材料表现出优越的阻燃性和增强的机械性能.
- 这种方法为创建多功能多乳酸材料提供了可持续的途径.
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