一个核心外弹性阻燃剂,具有优越的迁移电阻,用于防火和固的聚胺666
Jingfan Zhang1,2, Xiao-Jie Li1,2, Guowen Ran1,2
1China Bluestar Chengrand Co., Ltd., Chengdu 610041, China.
Polymers
|February 13, 2026
概括
这项研究开发了一种核心外弹性阻燃剂 (SiR@FR),以防止聚胺66 (PA66) 的迁移. 新的阻燃剂显著提高了材料的稳定性,阻燃性和机械性.
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
- 阻燃技术 阻燃技术 阻燃技术
背景情况:
- 在恶劣条件下,无素阻燃剂经常在聚胺66 (PA66) 中迁移,导致表面变白.
- 在PA66中常用的二甲基酸盐 (ADP) 和胺聚酸盐 (MPP) 呈现出这种迁移问题.
研究的目的:
- 开发一种新的核心外弹性阻燃剂 (SiR@FR),以克服PA66.6的迁移挑战.
- 为了提高PA66复合材料的阻燃性,迁移性和机械性能.
主要方法:
- 一种核心外弹性阻燃剂 (SiR@FR) 通过使用溶液沉积方法将聚甲基 (SiR) 封装在ADP和MPP上来合成.
- 修改后的阻燃剂被纳入PA66中,由此产生的复合材料 (PA66-5) 经过老化测试,阻燃性评估 (UL-94 V-0) 和机械性能评估.
主要成果:
- 在85°C/85%的相对湿度下经过480小时的老化后,PA66-5表现出极好的迁移耐受性,没有表现出表面变白.
- 该复合材料获得了UL-94 V-0评级,并且最大热释放率降低了65%.
- 撞击强度增加了21%,这是由于提高了性和减轻了应力度.
结论:
- SiR@FR封装策略有效地防止了PA66.6中的阻燃剂迁移.
- 开发的阻燃PA66复合材料具有卓越的稳定性,阻燃性和机械性能.
- 这种方法为要求要求耐用和稳定的阻燃材料的苛刻应用提供了有前途的解决方案.
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