The iPP of adding β nucleation agent to pure isotactic polypropylene

the crystallization particles are small

the crystallization rate is fast

the crystallization temperature is high

transparency is good

and the mechanical properties is improved. As structural materials and engineering materials

i

PP are widely used in chemical industry

packaging materials

automotive materials and household electrical appliances

therefore

the study of

i

PP β nucleation agents has become a hot topic in recent years. The nucleation mechanism and the types of nucleation agents were reviewed about small molecule and polymer β nucleation agent of

i

PP

the advantages and disadvantages of the various β nucleation agents were analysed

the effect of β nucleation agent on the crystallization properties was elaborated and the future development direction was discussed.