Polyvinyl-chloride(PVC) is one kind of general resins with fine performances and low price

but PVC must be modified because of its brittleness

bad thermal stability and poor processability. These problem srestrict its further applications in some high-performance aspects. PVC compo sites with high performances can be obtained by blending with thermoplastic elastomer (TPE) to carry toughening modification. The blending of toughening PVC is the easiest method. In this thesis

the classification

toughening mechanisms and preparation methods were reviewed. The influencing factors of the early strength to PVC/TPE and the compatibilizing methods about immiscible polymer blend were also introduced.