Performance and Application Research of High Impact Strength Transparent Polypropylene
Transparent polypropylene products usually have poor low-temperature resistance impact performance,and the application scope is greatly limited.The high impact strength transparent polypropylene RC-20M is also combined with the advantages of random transparent polypropylene and impact resistant copolymer polypropylene,which has the characteristics of excellent low temperature resistance,high transparency,and strong sealing.This article adopts a variety of analysis and test methods,and evaluates the basic performance and micro-structures of high impact strength transparent polypropylene RC-20M products.By optimizing the injection molding process,the influence of the injection molding process on the mechanical and optical properties of the product was investigated.The results show that RC-20M products have a high crystallization,the crystallization rate is fast,and has a good crystallization ability,which is conducive to shortening the molding cycle and improving the size stability of the product.The small particle size and high degree of homogeneity of the rubber phase of the product are the main reasons for the excellent impact resistance and optical properties of the product.The optical properties and impact resistance performance of the product are improved under the injection molding process of low melting temperature,short holding time,low glue speed,low glue pressure,and low injection speed.
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