Structure and Properties of Special Materials for Thin-Wall Injection Molded Polypropylene
The melting crystallization property,molecular weight distribution and mechanical properties of three kinds of high melt flow rate thin-wall injection molded polypropylene(PP)samples were studied by various analytical methods.The results showed that the crystallization performance of PP2 was slightly better than that of K1870 and PP1 under the same nucleation system.The macroscopic mechanical properties of the three products were similar,which could meet the production requirements of large thin-wall injection molding products.K1870 and PP2 showed better fluidity,which was more conducive to downstream processing.
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