| POE用量对BR/POE并用胶性能的影响 |
| Effect of POE Amounts on Properties of POE/BR Blends |
| 投稿时间：2021-03-15 修订日期：2021-03-15 |
| DOI：10.12136/j.issn.1000-890X.2022.08.0603 |
| 中文关键词: 顺丁橡胶 聚烯烃类热塑性弹性体 抗拉强度 撕裂强度 |
| 英文关键词: BR POE blend tensile strength tear strength |
| 基金项目:宁夏重点研发计划对外合作项目（No. 2019BFH02018）和宁夏高等学校一流学科建设项目 (No. NXYLXK2017A04) |
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| 中文摘要: |
| 为拓宽顺丁橡胶（BR）的更广泛的应用，开发现代高性能顺丁橡胶复合材料，本文用聚烯烃类热塑性弹性体（POE）改善BR的抗拉强度和撕裂强度，研究了POE含量变化对BR/POE并用胶性能的影响。结果表明BR/POE混炼胶的正硫化时间减少，门尼粘度增大，并且随着POE用量的提升，BR/POE硫化胶的抗拉强度和撕裂强度明显提升，POE用量达40份时，抗拉强度和撕裂强度均提升1.7倍；此外，拉伸断面的裂纹扩展更加粗糙。 |
| 英文摘要: |
| In order to broaden the application range of cis-polybutadiene rubber （BR），polyolefin
thermoplastic elastomer（POE） was used to improve the tensile properties and tear resistance of BR，the
effect of POE amounts on the properties of POE/BR blends was studied. The results showed that with the
increase of POE amount，the t90 of POE/BR blends was shortened，the Mooney viscosity increased，the
tensile strength and tear strength increased significantly. When the amount of POE reached 40 phr，the tensile
strength and tear strength of POE/BR blend were nearly 1.7 times higher than that of the BR vulcanizate
without POE，and the crack propagation on the tensile fractured section was rougher. |
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