| EPDM/LDPE Thermoplastic Elastomer Foamed by Supercritical Carbon Dioxide |
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| DOI： |
| Key Words: EPDM；LDPE；thermoplastic elastomer；dynamic vulcanization；supercritical carbon dioxide；physical foaming |
| Author Name | Affiliation | | ZHOU Xiao-tao | Guangdong University of Technology | | CAO You-ming | Guangdong University of Technology |
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| Abstract: |
| The effect of curing system and blending ratio of rubber and plastic on the mechanical properties and micro-structure of EPDM/LDPE thermoplastic elastomer （TPE） foamed by supercri tical carbon dioxide was studied.The results showed that， the mechanical properties of TPE cured with peroxide curing system were better than those cured with sulfur curing system.With the increase of the addition level of curing agent，the tensile strength and tear strength had a maximum value，and Shore A hardness increased.When the blending ratio of EPDM/LDPE was 40/60，the mechanical property was at the best.It was found that the morphology of the blend was a sea-island structure in which LDPE was the continuous phase and EPDM formed the dispersed phase.In addition，the pore size distribution was uniform. |
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