Structure and Properties of Poly (vinylidene fluoride) Nanocomposites Based on the Ionic Liquid Coated Carbon Nanotubes

摘要

Poly(vinylidene fluoride) (PVDF) is a crystalline polymer having a low glass transition temperature (-35 ℃).It is superior in heat resistance,chemical resistance,mechanical properties,abrasion resistance,flame retardancy and weatherability.PVDF exhibits specific electrical properties because of the high polar CF2 bonds in its molecular structure.In this work,a room temperature ionic liquid (IL),1-butyl-3-methylimidazolium hexafluoro phosphate [BMIM][PF6],carbon nanotubes (CNT),and the IL coated CNTs (IL-CNTs) have been used to modify poly(vinylidene fluoride) (PVDF)[1,2].The structure,crystal forms,and properties of the obtained nanocomposites have been investigated systematically.