| Study on Reinforcement of Millable Polyurethane by Magnesium Methacrylate Prepared by in Situ Reaction |
| Received:March 14, 2018 Revised:March 14, 2018 |
| DOI：10.12136/j.issn.1000-890X.2019.05.0332 |
| Key Words: millable polyurethane；magnesium dimethacrylate；reinforce；in situ reaction |
| Author Name | Affiliation | E-mail | | YE Shengtao | Guangdong University of Technology | 416794399@qq.com | | CEN Lan* | Guangdong University of Technology | 821847105@qq.com | | ZHOU Yanhao | Guangdong University of Technology | | | OUYANG Lunwei | Guangzhou Shunli Polyurethane Technology Co. ，Ltd | |
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| Abstract: |
| Magnesium methacrylate（MDMA）was synthesized by in situ reaction of magnesium oxide （MgO）and methacrylic acid（MAA）in the mixing process of millable polyurethane（MPU）（peroxide as vulcanizing agent），and its reinforcing effect on MPU was investigated.The results showed that：When the theoretical amount of MDMA was 30 phr，with the increase of MgO/MAA moral ratio，the tensile strength of MPU vulcanizate increased first and then decreased.When the moral ratio of MgO/MAA was 0.6，the tensile strength reached the maximum value and the comprehensive physical properties were the best.When the moral ratio of MgO/MAA was 0.6，with the increase of the theoretical production of MDMA，the Fmax－FL of the blend increased significantly，the tensile strength of MPU vulcanizate increased first and then decreased，the glass transition temperature moved to low temperature and the low temperature resistance of vulcanizate was improved.When the amount of MDMA was 30 phr, the tensile strength reached the maximum value and the filler network structure was stable. |
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