| 云母粉粒径对宽温域阻尼丁基橡胶胶料性能的影响 |
| Effect of Particle Sizes of Mica Powder on Properties of Damping IIR Compounds with Wide Temperature Ranges |
| 投稿时间:2023-11-30 修订日期:2023-11-30 |
| DOI:10.12136/j.issn.1000-890X.2025.09.0673 |
| 中文关键词: 云母粉 粒径 丁基橡胶 阻尼性能 物理性能 |
| 英文关键词: mica powder particle size IIR damping performance physical property |
| 基金项目:中国石化项目(222109) |
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| 中文摘要: |
| 研究云母粉粒径对宽温域阻尼丁基橡胶(IIR)胶料性能的影响。结果表明:云母粉会吸附硫黄和促进剂,对IIR胶料的硫化产生延迟效应,降低IIR胶料的硫化速率,但可有效防止IIR胶料焦烧;粒径为10~60 μm的云母粉补强IIR硫化胶的整体物理性能优于炭黑N330补强IIR硫化胶;与炭黑N330补强IIR硫化胶相比,云母粉补强IIR硫化胶的最大损耗因子(tanδmax)显著增大;粒径为60 μm的云母粉补强IIR硫化胶的tanδ?≥0.3的阻尼温域与炭黑N330补强IIR硫化胶相当,均宽于其他粒径云母粉补强IIR硫化胶;粒径为60 μm的云母粉补强IIR硫化胶的tanδmax最大,阻尼性能最佳,云母粉粒径过大或过小对IIR硫化胶的阻尼性能都不利。 |
| 英文摘要: |
| Effect of the particle sizes of mica powder on the properties of damping butyl rubber(IIR)compounds with wide temperature ranges was investigated. The results showed that,mica powder could adsorb sulfur and accelerators,causing a delayed effect on the vulcanization of IIR compound and reducing the vulcanization rate,but effectively preventing the scorching.The physical properties of IIR vulcanizates reinforced with mica powder with particle size of 10~60 μm were better than those of IIR vulcanizate reinforced with carbon black N330.Compared with IIR vulcanizate reinforced with carbon black N330,the maximum loss factor(tanδmax)of IIR vulcanizate reinforced with mica powder was significantly improved.The damping temperature range of loss factor≥0.3 of IIR vulcanizate reinforced with mica powder of 60 μm was equivalent to that of IIR vulcanizate reinforced with carbon black N330,and both were wider than the damping temperature ranges of IIR vulcanizate reinforced with mica powder with other particle sizes.Moreover,the tanδmax of IIR vulcanizate reinforced with mica powder with particle size of 60 μm was the largest,the damping performance was the best.Both too large or too small particle sizes of mica powder were detrimental to the damping performance of IIR vulcanizate. |
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