| Study on dynamic property of different vulcanization system of NR by RPA |
| Received:October 10, 2014 Revised:October 10, 2014 |
| DOI： |
| Key Words: RPA; vulcanization system; NR; dynamic property |
| Author Name | Affiliation | E-mail | | Gong Li | Qingdao University of Science and Technology Institute of High Performance Polymer Qingdao 266042 | gonglikeda@163.com | | Wang Haitao | Qingdao University of Science and Technology Institute of High Performance Polymer Qingdao 266042 | | | Dong Chenglei | Qingdao University of Science and Technology Institute of High Performance Polymer Qingdao 266042 | | | You Haijun | Qingdao University of Science and Technology Institute of High Performance Polymer Qingdao 266042 | | | Liu Li* | Qingdao University of Science and Technology Institute of High Performance Polymer Qingdao 266042 | qdliuli@163.com |
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| Abstract: |
| The different vulcanization system on NR dynamic propertywas studied by RPA.with frequency increasing, the G '' of compounds and vulcanizates increased, the Tanδ of compounds reduced, the Tanδ of vulcanizates increased;with Strain increasing, the G '' of compounds and vulcanizates decreased,the Tanδ of compounds increased rapidly when the strain is more than 20% , the Tanδ of vulcanizates appeard peak value in the strain of 2%;with temperature increasing, the G '' of compounds reduced and the Tanδ increased,the G'' of vulcanizates increased and the Tanδ decreased.Under three scan of different vulcanization system, G '' of vulcanizates order: SEV > EC >CV > EV, mostly single sulphur keys, double sulfur and more sulfur keys must keep certain proportion to obtain higher G''. |
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