构建环保的多功能核心外阻燃剂及其在阻燃剂聚乳酸中应用的应用
Shiyang Zhu1, Zhaoliang Jiang1, Zongsheng Liu1
1College of Materials Science and Engineering, Zhejiang Key Laboratory of Plastic Modification and Processing Technology, Zhejiang University of Technology, Hangzhou, 310014, PR China.
International journal of biological macromolecules
|September 7, 2025
概括
这项研究开发了一种用于聚乳酸 (PLA) 的新型阻燃剂 (APP@CS@LK),它也提供抗紫外线. 增强的PLA复合材料表现出更好的阻燃性和耐久性,扩大了其应用潜力.
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
背景情况:
- 聚乳酸 (PLA) 具有易燃性和不良的紫外线抵抗性,限制了其户外和阻燃应用.
- 开发多功能添加剂对于提高PLA的性能和扩大其使用至关重要.
研究的目的:
- 设计和合成一个核心外结构的阻燃剂,并为PLA集成紫外线保护.
- 评估含有新增剂的PLA复合材料的阻燃性和抗UV衰老性.
主要方法:
- 一种核心外阻燃剂 (APP@CS@LK) 通过静电相互作用使用聚酸盐 (APP) 核心,酸盐 (CS) 内和酸盐 (LK) 外来合成.
- 通过加入APP@CS@LK添加剂来制备PLA复合材料.
- 使用UL-94垂直燃烧测试和限制氧指数 (LOI) 测量来评估阻燃性.
- 使用热量计分析了燃烧行为.
- 通过测量紫外线阻断能力来评估紫外线抵抗.
主要成果:
- 这种PLA/APP@CS@LK复合材料获得了UL-94 V-0评级.
- 清洁PLA的LOI从19.5%增加到30.7%,其中10%为APP@CS@LK.
- 峰值热释放率 (PHRR) 减少了23.5%,CO2和CO排放量分别减少了31%和74%.
- 该复合物阻了近99%的紫外线 (UPF 64.8),这是由于素的基基.
结论:
- 建立了一种安全,绿色和有效的方法来制备多功能阻燃性PLA复合材料.
- 开发的APP@CS@LK添加剂显著提高了PLA的阻燃性和抗紫外线.
- 这一进步扩大了PLA在苛刻环境中的潜在应用.
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