An easy preparation of hybrid Si0_2@Poly acrylic acid Nanoparticles

摘要

Nanometer materials are widely used in the modification of polymer materials such as polypropylene because of its unique performance. Nano-composite material,which expended the application field of polymer ,is a kind of new composite materials with high performance ratio and widely application prospect .This paper adopted the surface-initiated technology to coat and modify the surface of nano-silica,which solved the problem of the agglomeration and interface compatibility of the nanometer particles and improved its dispersion in the acrylic acid,then prepared SiO_2/PAA nano-composite .The composite was characterized by infrared spectrum and transmission electron microscopy(TEM) ,etc.The research results showed that the nano-composite prepared by in-situ polymerization technology had higher toughness ,strength and more excellent comprehensive performance.