| Effects of Metal Oxides on Properties of MVQ Compounds |
| Received:February 16, 2022 Revised:February 25, 2022 |
| DOI：10.12136/j.issn.1000-890X.2023.06.0432 |
| Key Words: metal oxide；MVQ；compression set；oil resistance；heat resistance |
| Author Name | Affiliation | E-mail | | WEI Shukun | Qingdao University of Science & Technology | 3286177582@qq.com | | LIU Li | Qingdao University of Science & Technology | | | SHEN Mei* | Qingdao University of Science & Technology | 02896@qust.edu.cn |
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| Abstract: |
| Abstract：The effects of metal oxides MgO，ZnO，Fe2O3 and Al2O3 on the properties of the methyl
vinyl silicone rubber （MVQ） compounds were studied. The results showed that the types of metal oxides
had little effect on the vulcanization characteristics of the MVQ compounds and the tensile properties of
MVQ vulcanizates. The compression set of the MVQ vulcanizate with MgO was the lowest（6%），and the
compression set of the MVQ vulcanizate increased significantly with the addition of Fe2O3. The MVQ
vulcanizates with ZnO and MgO had better oil resistance. The decomposition rate of the main chain of the
rubber molecules of the MVQ vulcanizate with MgO was reduced，and the decomposition temperature increased
to 647 ℃ . Compared with the blank sample，the final decomposition temperature of the MVQ vulcanizate
with MgO increased by 40 ℃，and the heat resistance was significantly improved.The overall properties of the
MVQ compound with MgO were the best. |
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