| 耐高温氢化丁腈橡胶/甲基丙烯酸锌改性氢化丁腈橡胶并用胶的性能研究 |
| Study on Properties of High-Temperature Resistant HNBR/ZDMA-HNBR Blends |
| 投稿时间：2024-05-08 修订日期：2024-05-08 |
| DOI：10.12136/j.issn.1000-890X.2026.05.0344 |
| 中文关键词: 氢化丁腈橡胶 甲基丙烯酸锌 离子交联网络 高温力学性能 耐油性能 |
| 英文关键词: hydrogenated nitrile butadiene rubber zinc dimethacrylate ionic crosslinking network high-temperature mechanical properties oil resistance |
| 基金项目:国家自然科学基金资助项目(22278162) |
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| 中文摘要: |
| 采用氢化丁腈橡胶（HNBR）和甲基丙烯酸锌（ZDMA）改性HNBR（ZDMA-HNBR）制备HNBR/ZDMA-HNBR并用胶，采用平衡溶胀法和扫描电子显微镜表征HNBR/ZDMA-HNBR并用胶的交联网络结构和形态结构，研究ZDMA-HNBR用量对HNBR/ZDMA-HNBR并用胶的硫化特性、力学性能及耐油性能的影响。结果表明：与HNBR胶料相比，HNBR/ZDMA-HNBR并用胶形成了更多离子交联网络，总交联密度增大；ZDMA-HNBR能均匀地分散在HNBR中，有效提高HNBR/ZDMA-HNBR并用胶的高温（130 ℃）力学性能和耐油性能；当ZDMA-HNBR用量为30份时，HNBR/ZDMA-HNBR并用胶的高温拉伸强度达到14.1 MPa，比HNBR胶料提高42.4%，在IRM 903油中浸泡（23 ℃×168 h）后并用胶的高温拉伸强度仍可达到13.0 MPa，比HNBR胶料提高49.4%。 |
| 英文摘要: |
| Hydrogenated nitrile rubber（HNBR）and zinc dimethacrylate modified HNBR（ZDMA-HNBR） were used to prepare HNBR/ZDMA-HNBR blends.The crosslinking network structures and morphological structures of HNBR/ZDMA-HNBR blends were characterized using the equilibrium swelling method and scanning electron microscopy，and effects of ZDMA-HNBR amount on the vulcanization characteristics，mechanical properties and oil resistance of HNBR/ZDMA-HNBR blends were studied.The results showed that，compared with HNBR compound，HNBR/ZDMA-HNBR blend formed more ionic crosslinking networks，and increased total crosslinking density.ZDMA-HNBR was uniformly dispersed in HNBR，and effectively improved the high-temperature（130 ℃） mechanical properties and oil resistance of the blend.When ZDMA-HNBR amount was 30 phr，the high-temperature tensile strength of HNBR/ZDMA-HNBR blend reached 14.1 MPa，which was 42.4% higher than that of HNBR compound. After immersion in IRM 903 oil（23 ℃×168 h），the high-temperature tensile strength of HNBR/ZDMA-HNBR blend still reached 13.0 MPa，which was 49.4% higher than that of HNBR compound. |
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