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Study on PP toughened by EPDM and the mechsnism of brittle-tough transition

Haidong Li, Fengmei Cheng

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Abstract

The toughness of PP/EPDM blends was measured over a wide range of temperature(25～132?℃) and content(0～26wt%EPDM).It was found that incteasing temperature and increasing EPDM content have equivalent effects on the brittle-tough transition of toughening PP with EPDM.Acorrelation was found between the brittle-tough transition tempetature of PP/EPDM blends and EPDM content.It was found that increasing EPDM content,the tensile strength became low.The correlation was found beteen PP/EPDM blends and EPDM content.

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What this paper is about

The toughness of PP/EPDM blends was measured over a wide range of temperature(25～132?℃) and content(0～26wt%EPDM).It was found that incteasing temperature and increasing EPDM content have equivalent effects on the brittle-tough transition of toughening PP with EPDM.Acorrelation was found between the brittle-tough transition tempetature of PP/EPDM blends and EPDM content.It was found that increasing EPDM content,the tensile strength became low.The correlation was found beteen PP/EPDM blends and EPDM content.

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Available abstract

The toughness of PP/EPDM blends was measured over a wide range of temperature(25～132?℃) and content(0～26wt%EPDM).It was found that incteasing temperature and increasing EPDM content have equivalent effects on the brittle-tough transition of toughening PP with EPDM.Acorrelation was found between the brittle-tough transition tempetature of PP/EPDM blends and EPDM content.It was found that increasing EPDM content,the tensile strength became low.The correlation was found beteen PP/EPDM blends and EPDM content.

Key concepts: Materials science, Toughening, Composite material, Brittleness, EPDM rubber, Ultimate tensile strength, Toughness, Izod impact strength test

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