关于激活氧化/聚酸复合体阻燃系统的分散和加工性能研究,用于乙烯基树脂
Jipeng Dou1, Yong Xie1, Rui Chen1
1School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
Polymers
|March 13, 2025
概括
阻燃剂粉末的表面修饰用1%的酸改善了在乙烯基树脂中的分散,增强了机械性能. 高酸含量对阻燃性和加工产生了负面影响.
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
- 阻燃性是指阻燃性是指阻燃性.
背景情况:
- 阻燃剂添加剂,如氧化和聚酸对于聚合物安全至关重要.
- 聚合物矩阵中阻燃剂的分散性差,往往限制了它们的有效性和机械性能.
- 表面修饰技术用于提高有机树脂中无机填充剂的兼容性和分散性.
研究的目的:
- 为了优化混合氧化/聚酸阻燃剂的表面修饰,使用酸.
- 为了研究不同剂量的酸对粉末表面性能和在乙烯基树脂中的分散的影响.
- 评估由此产生的复合材料的阻燃性,机械性能和加工特性.
主要方法:
- 不均的核化方法,用于酸表面修改阻燃剂粉末.
- 使用红外光谱,激活度和激光粒子大小分析进行表征.
- 通过系统粘度,SEM成像和机械测试 (曲强度) 来评估分散.
主要成果:
- 1%的酸含量产生了最佳的表面涂层,均的颗粒大小和高激活度 (73.6%).
- 在1%的酸中修改的粉末在乙烯基树脂中显示出良好的分散 (粘度923 mPa·s) 和增强的曲强度 (41.86 MPa).
- 阻燃性略有降低 (LOI 24.0%),而较高的酸含量导致分散性差,粘度增加,阻燃性降低 (FV-2).
结论:
- 酸表面修饰有效地改善了乙烯基树脂中混合阻燃剂的分散性和机械性能.
- 1%的酸剂量提供了分散,机械性能和加工特性的最佳平衡.
- 虽然阻燃性略有受到损害,但整体性能提升证明了对特定应用的表面修改方法的合理性.
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