合成含有的基于L-乳酸的阻燃塑化剂,同时增强聚乳酸的灵活性和阻燃性
Boyou Hou1, Xueying Shan2, Xintong Jiang1
1School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China.
International journal of biological macromolecules
|September 8, 2024
概括
这项研究介绍了一种由L-乳酸制成的新型生物基阻燃增塑剂. 塑化剂显著提高了聚乳酸 (PLA) 的灵活性和阻燃性,用于增强材料应用.
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
- 可持续材料 可持续材料
背景情况:
- 聚乳酸 (PLA) 是一种环保的聚合物,具有易燃性和脆性的限制,限制了其在电子产品中的使用.
- 开发有效的阻燃和柔性材料对于扩大PLA应用至关重要.
研究的目的:
- 从可再生的L-乳酸合成生物基阻燃塑化剂 (EPDL).
- 评估EPDL对PLA阻燃性,灵活性和结晶性的影响.
主要方法:
- 使用L-乳酸合成EPDL.
- 在40phr负载时将EPDL纳入PLA.
- 使用UL94 V-0等级和限制氧指数 (LOI) 评估阻燃性.
- 热释放率 (HRR) 和总热释放率 (THR) 的分析.
- 评估机械性能,特别是断裂时的延长.
- 对PLA结晶行为的研究.
主要成果:
- 与40phr EPDL混合的PLA获得了UL94 V-0评级和34.3%的LOI.
- 峰值HRR和THR分别减少了23.1%和34.1%.
- 断裂时的延长增加了大约52倍 (至181.8%),这表明延展性显著提高.
- EPDL证明了一种双重阻燃机制 (气相和冷凝相).
- 存在EPDL对PLA的结晶性能产生了积极的影响.
结论:
- 开发的EPDL是一种高效的生物基阻燃剂和PLA的增塑剂.
- EPDL增强了PLA的灵活性和阻燃性,使其能够在苛刻的应用中使用.
- 该战略为创建先进的阻燃柔性材料提供了一个可持续的途径.
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