| Study on the Structure and Properties of Waste Rubber Powder/Polypropylene/Epoxy Resin Composites |
| Received:September 11, 2018 Revised:September 11, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.07.0499 |
| Key Words: waste rubber powder；polypropylene；epoxy resin；composite；interpenetrating network structure；tensile property |
| Author Name | Affiliation | E-mail | | ZHOU Hanlin | Changzhou University | 1724654397@qq.com | | TAO Guoliang* | Changzhou University | | | XIA Yanping | Changzhou University | | | GENG Haoran | Changzhou University | |
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| Abstract: |
| The waste tread rubber powder（WRP）/polypropylene（PP）/epoxy resin（EP）composite was prepared，and the effect of EP content on the structure and properties of the composites was studied.The results showed that，the crosslinking network of EP and WRP molecular chains formed an interpenetrating network structure，which enhanced the crosslinking degree of WRP/PP/EP composites.The tensile strength and elongation at break of WRP/PP/EP composites first increased and then decreased with the increase of EP content，and the optimum value was reached when the EP content was 0.3 phr.The melt flow rate decreased and the gel mass fraction of the composites increased with the increase of EP content.After adding EP，the glass transition temperatures of WRP and PP gradually approached，and the compatibility between them was improved.The thermal mass loss rate of WRP phase decreased while that of PP phase increased after adding EP，the cross section of the composites became smoothing，the voids were reduced，the interfacial compatibility was improved.When EP content was 0.3 phr，the compatibility of WRP phase and PP phase was the best. |
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