| 甲基丙烯酸锌补强氢化丁腈橡胶耐老化性能的研究 |
| Aging Property of HNBR Reinforced by Zinc Dimethacrylate |
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| DOI： |
| 中文关键词: 甲基丙烯酸锌 氢化丁腈橡胶 物理性能 动态力学性能 耐老化性能 |
| 英文关键词: zinc dimethacrylate HNBR physical property dynamic property aging property |
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| 中文摘要: |
| 试验研究甲基丙烯酸锌（ZDMA）补强氢化丁腈橡胶（HNBR）热空气老化前后的物理性能和动态力学性能。结果表明：随着ZDMA用量的增大，HNBR胶料的t10和t90缩短，ML和MH增大，硫化胶的邵尔A型硬度和100%定伸应力增大，拉伸强度和拉断伸长率先增大后减小；经热空气老化后，随着老化时间的延长，HNBR硫化胶的邵尔A型硬度和100%定伸应力增大，拉伸强度和拉断伸长率减小；延长老化时间或增大ZDMA用量，HNBR硫化胶的储能模量和损耗模量增大，损耗因子峰值逐渐减小，损耗模量峰值和玻璃化温度逐渐向高温方向移动。 |
| 英文摘要: |
| The physical properties and dynamic property of HNBR reinforced by zinc dimethacrylate （ZDMA） before and after hot air aging were investigated experimentally.The results showed that，as the addition level of ZDMA increased，t10 and t90 of HNBR compound shortened，ML and MH increased，the Shore A hardness and modulus at 100% elongation of the vulcanizates increased，and the tensile strength and elongation at break increased at first and then decreased.After hot air aging，as the aging time extended，the Shore A hardness and modulus at 100% elongation of the HNBR vulcanizates increased，and the tensile strength and elongation at break decreased.When the aging time extended or the addition level of ZDMA increased，the storage modulus and loss modulus of the HNBR vulcanizates increased，the peak value of loss factor decreased gradually，and the peak value of loss modulus and glass transition temperature shifted gradually to the high temperature region. |
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