Effect of two compatibilizers haying comonomer in polypropylene/clay nanocomposites

Comonomer 도입한 상용화제가 Polypropylene/clay 나노복합재료에 미치는 영향

  • 남병욱 (한국기술교육대학교 응용화학공학과)
  • Published : 2007.04.30

Abstract

Nanocomposites prepared by PP(Polypropylene) based compatibilizers modified with GMA(Glycidyl methacrylate) and HEMA(Hydroxyethyl methacrylate) were used to investigate the clay dispersion and mechanical properties of them. XRD patterns showed the improvement of dispersion through clay intercalation according to the compatibilizers and comonomer. GMA modified polypropylene gave the best mechanical properties of the nanocomposite with respect to the balance of Flexural modulus (FM) and Notched izod impact strength(IS). Compatibilizers with comonoer commonly have higher grafting yield and lower melt flow rate than those of comonomer free. And they enhanced the clay dispersion and mechanical properties of nanocomposites. Optimum ratio of monomer to comonomer for nanocomposites having better mechanical properties is about 1 to 1 ratio.

Keywords

Polypropylene;Organic clay;Cononomer;Nanocomposites;Compatibilizer;Mechanical property