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| TPI的门尼粘度对NR/TPI减震制品性能的影响 |
| Effect of Mooney Viscosity of TPI on Properties of NR/TPI Damping Products |
| Received:September 26, 2022 Revised:September 29, 2022 |
| DOI：10.12137/j.issn.2095-5448.2024.04.0208 |
| 中文关键词: 反式异戊橡胶 天然橡胶 橡胶减震制品 门尼粘度 物理性能 耐疲劳性能 |
| 英文关键词: TPI NR rubber damping product Mooney viscosity dynamic property |
| 基金项目:无 |
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| 中文摘要: |
| 研究反式异戊橡胶（TPI）的门尼粘度对天然橡胶（NR）/TPI减震性能的影响。结果表明：与NR硫化胶相比，NR/TPI硫化胶的硬度增大，拉伸性能和抗撕裂性能降低，压缩永久变形减小，在－30，23和70 ℃下的耐屈挠龟裂性能提高，但在100 ℃×48 h热老化后23 ℃下的耐屈挠龟裂性能降低；随着TPI门尼粘度的提高，NR/TPI硫化胶的拉伸性能、撕裂强度和回弹值提高，静态压缩永久变形、动静刚度比和损耗因子减小，耐压缩疲劳性能以及在－30，23和70 ℃下的耐屈挠龟裂性能提高；高门尼粘度TPI在橡胶减震制品中的应用性能更优异。 |
| 英文摘要: |
| The effects of Mooney viscosity of trans-1，4-polyisoprene（TPI） on the properties of natural rubber（NR）/TPI damping products were studied.The results showed that，compared with NR vulcanizate，the hardness of NR/TPI vulcanizates increased，the tensile properties，tear resisitance and compression set decreased，and the flexural cracking resistance at －30，23 and 70 ℃ were improved，but the flexural cracking resistance at 23 ℃ after 100 ℃ ×48 h heat aging decreased.With the increase of the Mooney viscosity of TPI，the tensile properties，tear strength and rebound value of NR/TPI vulcanizates were gradually improved，the static compression set，dynamic static stiffness ratio and loss factor decreased，the compression fatigue resistance and flexural cracking resistance at －30，23，and 70 ℃ were improved.TPI with high mooney viscosity showed better application performance in rubber damping products. |
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