Abstract:

Polypropylene（PP）is one of the rapidest growing materials in the world. For the outstanding performance and huge market demand，the production of high fluidity polypropylene further stimulates the development of polypropylene industry. In this paper，the production situation of high fluidity polypropylene is presented，and the current research and development trends in production techniques，such as controlled rheology and catalyst techniques，including internal and external donor techniques，are reviewed.