塑料科技2025，Vol.53Issue(1)：46-50,5.DOI:10.15925/j.cnki.issn1005-3360.2025.01.008
PP-纳米二氧化硅的界面稳定化改性研究
Study on Interfacial Stabilization Modification of PP-nanosilica Composite
章丹阳 1王元霞 2宋立新 2杨睿3
作者信息
- 1. 沈阳化工大学,辽宁沈阳 110142||清华大学,北京 100084
- 2. 沈阳化工大学,辽宁沈阳 110142
- 3. 清华大学,北京 100084
- 折叠
摘要
Abstract
Nanoparticles significantly enhance the mechanical properties of polymers,but their presence tends to accelerate polymer aging due to the catalytic effect of chemicals on the surface of nanoparticles.Therefore,the stability of polymer composites can be improved by grafting anti-aging chemical groups on the surface of nanoparticles.In this paper,polypropylene(PP)-nanosilica(A380)composites were selected as a typical system,and site-resistant phenol functional groups were grafted on the surface of nanosilica.Compared with the composites without surface modification(PP-A380),the graft-modified nanosilica were uniformly dispersed in PP,and the surface-modified PP-A380 composites had better thermal stability.Due to chemical grafting,the site-resistant phenol showed better migration resistance.Surface grafting also contributed to the improvement of mechanical properties.关键词
聚丙烯复合材料/纳米二氧化硅/老化/表面改性/氧化诱导期Key words
Polyprolylene composites/Nanosilica/Aging/Surface modification/Oxidative induction time分类
化学化工引用本文复制引用
章丹阳,王元霞,宋立新,杨睿..PP-纳米二氧化硅的界面稳定化改性研究[J].塑料科技,2025,53(1):46-50,5.
