基于氧化石墨烯基的化聚烯酸复合物的制备和表征 in situ 共聚合
Shaona Zheng1, Lingyun Ye1, Guoyu Zhong2
1Basic Chemistry Experimental Teaching Center, Dongguan University of Technology, Dongguan, Guangdong, 523808, China.
概括
这项研究详细介绍了石墨烯氧化物 (GO) 和聚烯酸盐 (PA) 复合乳液的制造. 增强的复合材料显示出更好的分散性和可调节的水友性,为先进的材料应用铺平了道路.
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
- 纳米技术 纳米技术
背景情况:
- 石墨烯氧化物 (GO) 是一个有前途的材料,但其有效地整合到聚合物矩阵中仍然是一个挑战.
- 对GO表面的修改对于提高其在复合材料中的兼容性和分散性至关重要.
研究的目的:
- 为制备和表征基于化石墨烯氧化物 (MPS-GO) 的聚烯酸盐 (PA) 复合乳液.
- 调查MPS-GO结合对PA复合材料分散,结构和性能的影响.
- 为了确认MPS-GO在PA矩阵中的成功共聚合.
主要方法:
- 修改后的汉默斯方法用于氧化石墨烯制备.
- 用3-甲基基 propyltrimethoxysilane (MPS) 对GO进行表面修饰.
- 在现场共聚化制造PA/MPS-GO复合乳液.
- 使用FTIR,拉曼光谱,XPS,XRD,AFM和水接触角测量的表征.
主要成果:
- 成功合成和表征MPS-GO和PA/MPS-GO复合材料.
- 证实了MPS-GO和PA矩阵之间的共价键,导致同质分散.
- 与纯PA乳 (87nm) 相比,复合乳的颗粒大小增加 (107nm).
- 增加了与MPS-GO添加的水接触角度,表明可调节的水友性.
结论:
- 用MPS对GO的表面修饰有效地通过共价结合改善了其在PA矩阵中的分散.
- 由此产生的PA/MPS-GO复合材料具有增强的结构完整性和可调整的表面性能.
- 这项工作为开发具有定制特性的高级功能聚合物复合材料提供了途径.
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