制造阻燃性聚酸改性酸基刚性聚氨泡,具有增强的机械性能
Xu Zhang1,2, Zhaoqian Wang1,2, Shuai Ding1,2
1Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang 110136, China.
Polymers
|August 10, 2024
概括
绿色生物质刚性聚氨泡 (RPUF) 被聚酸盐 (APP) 和酸盐 (PANi) 修改,以提高阻燃性和机械性能. 经过修改的RPUF显示了更好的热稳定性和减少烟雾毒性.
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
- 消防安全工程 消防安全工程
背景情况:
- 刚性聚氨泡 (RPUF) 是一种广泛使用的材料,但其易燃性和烟雾毒性是令人担忧的.
- 为RPUF开发绿色和低毒性阻燃剂对于可持续应用至关重要.
研究的目的:
- 用聚酸盐 (APP) 和酸盐 (PANi) 修改的绿色生物质RPUF进行制备.
- 研究APP和PANi对RPUF的阻燃性,热稳定性,烟雾毒性和机械性能的影响.
主要方法:
- 使用APP和PANi.使用修改RPUF的制备.
- 使用限制氧指数 (LOI) 和热量计 (CONE) 评估阻燃性.
- 通过热重力测量分析 (TGA) 评估热稳定性,通过压缩测试评估机械性能.
主要成果:
- 具有10%重量的APP (PANi/APP10) 的RPUF实现了最高的LOI (26.5%).
- PANi/APP10显示,峰值热释放率 (PHRR) 显著降低29.64%,总热释放率 (THR) 显著降低24.05%.
- 烟雾产生率 (SPR) 和总烟雾释放率 (TSR) 分别下降了33.14%和19.88%,压力强度增加了50%.
结论:
- 通过APP和PANi的协同作用,通过气体和冷凝相机制有效地提高了阻燃性和热稳定性.
- 修改后的RPUF表现出改进的机械性能和降低烟雾毒性.
- 这项研究为创造绿色,低毒性和高性能RPUF材料提供了一个新的策略.
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