| Study on Properties of Waste EPDM Powder Modified Polypropylene |
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| DOI： |
| Key Words: waste EPDM powder；polypropylene；composite；modification |
| Author Name | Affiliation | | LI Jun-wei | Tianjin Institute of Urban Construction | | LIU Zhi-feng | Tianjin Institute of Urban Construction |
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| Abstract: |
| The polypropylene（PP） was modified with waste EPDM powder（WEPDM），and the effect of addition level of WEPDM on the physical properties，melt flowability，thermal stability and microstructure of WEPDM/PP composite was investigated.The results showed that，a small amount of WEPDM could improve the comprehensive physical properties of PP.When the addition level of WEPDM was 15 phr，compared with pure PP，the tensile strength，flexural strength and elongation at break of the WEPDM/PP composite were improved，but the impact strength changed little.When the addition level of WEPDM increased further，the impact strength of WEPDM/PP composite increased significantly，but the tensile strength and flexural strength decreased.WEPDM could improve thermal stability of WEPDM/PP composite，but reduce melt flowability.When the addition level of WEPDM was 15~20 phr，the compatibility between WEPDM and PP was good，the interaction between WEPDM and PP was strong，and there was no distinct interface between two phases. |
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