| Test of Environmentally-Friendly Accelerator MTT for CR |
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| DOI： |
| Key Words: CR；ethylene thiourea；3-methyl-2-thiazolyl-thione；accelerator；vulcanization behavior；heat resistance |
| Author Name | Affiliation | | CAI Haijun | Suzhou East China Rubber Industry Co.，Ltd | | ZONG Sheng | Suzhou East China Rubber Industry Co.，Ltd | | WANG Qiaofu | Suzhou East China Rubber Industry Co.，Ltd | | XIE Zhonglin | Beijing Research and Design Institute of Rubber Industry |
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| Abstract: |
| In this study，environmentally-friendly accelerator MTT（3-methyl-2-thiazolyl-thione）was applied in CR compound and compared with accelerator ETU（ethylene thiourea）.The results showed that，using standard formula，the performance of MTT-80 and MTT were better than ETU.With practical formula，it was found that in W-type CR（SN 232 and M-40）compound，compared with the ETU compound，the MTT-80 compound had better scorch safety，flat vulcanization curve，better heat aging properties，equivalent ozone resistance，slightly inferior tensile properties which，however，were still at a good level，and thus MTT80 could be used to replace ETU in practical production.For WRT-type CR（SV-40），there was a big difference between compound properties of MTT-80 and ETU compounds，and further study was needed. |
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