聚乙烯与石墨的机械化学兼容,采用合适的 Ester
Simona Russo1, Maria Rosaria Acocella1, Annaluisa Mariconda2
1Department of Chemistry and Biology, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
Polymers
|July 14, 2023
概括
一种新的非共价方法使用-1-酸 (P1S) 增强了石墨在聚乙烯中的分散. 球磨混合证明优于手动混合,因为它改善了填充剂-矩阵相互作用和材料特性.
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
- 纳米技术纳米技术
背景情况:
- 聚合物矩阵中的石墨等碳填充剂的有效分散对于先进的复合材料至关重要.
- 非共价兼容化提供了一条有希望的途径,可以改善填充剂-聚合物相互作用,而不会改变填充剂的化学成分.
研究的目的:
- 开发和评估在低密度聚乙烯矩阵中对石墨的有效非共价兼容化策略.
- 调查-1--酸盐 (P1S) 作为兼容剂的作用,并比较不同的混合技术.
主要方法:
- 聚-1-酸 (P1S) 的合成和表征.
- 使用手动和球磨混合技术在不同重量比率 (90/10和50/50) 上制备P1S/石墨填充剂.
- 使用热重力度分析 (TGA),X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 评估填充剂的稳定性,相互作用和形态.
主要成果:
- 与手动混合相比,球磨混合显著增强了P1S和石墨的pyrenyl组之间的π-π堆叠相互作用.
- XRD分析证实了球磨引发的脱皮和间隙现象,表明石墨分散度有所改善.
- SEM分析表明,球磨促进了P1S和石墨之间的相互作用,而烯链促进了与聚乙烯的兼容性.
结论:
- -1--酸盐有效地作为聚乙烯中石墨的非共价兼容剂.
- 球磨是一种卓越的混合方法,可以实现强大的界面相互作用和P1S-石墨填充剂在聚乙烯中的最佳分散.
- 结合的π-π堆叠和范德瓦尔斯相互作用是成功将石墨与聚乙烯复合材料相兼容的关键.
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