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Study on high melt strength polypropylene for foaming

Chuai Cheng-zhi

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Abstract

Polypropylene(PP) was modified by cross-linking with silane in a concurrent parallel twin-screw extruder to prepare high melt strength PP(HMSPP) for high foaming rate product in the presence of benzoyl peroxide(BPO).The results show that the melt strength of HMSPP are 5.01 times of pure PP,and the mechanical properties and heat resistance of HMSPP are improved significantly,which is suitable for high foaming rate product.

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What this paper is about

Polypropylene(PP) was modified by cross-linking with silane in a concurrent parallel twin-screw extruder to prepare high melt strength PP(HMSPP) for high foaming rate product in the presence of benzoyl peroxide(BPO).The results show that the melt strength of HMSPP are 5.01 times of pure PP,and the mechanical properties and heat resistance of HMSPP are improved significantly,which is suitable for high foaming rate product.

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Available abstract

Polypropylene(PP) was modified by cross-linking with silane in a concurrent parallel twin-screw extruder to prepare high melt strength PP(HMSPP) for high foaming rate product in the presence of benzoyl peroxide(BPO).The results show that the melt strength of HMSPP are 5.01 times of pure PP,and the mechanical properties and heat resistance of HMSPP are improved significantly,which is suitable for high foaming rate product.

Key concepts: Polypropylene, Benzoyl peroxide, Materials science, Plastics extrusion, Silane, Composite material, Melt flow index, Heat resistance

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