| 李威,徐艺,王大鹏,邓彩霞.橡胶相对分子质量及其分布的测试与分析[J].橡胶科技,2019,17(11):0649-0653. |
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| 橡胶相对分子质量及其分布的测试与分析 |
| Measurement and Analysis of Relative Molecular Weight and Its Distribution of Rubber |
| 投稿时间：2019-03-01 修订日期：2019-03-01 |
| DOI：10.12137/j.issn.2095-5448.2019.11.0649 |
| 中文关键词: 天然橡胶 顺丁橡胶 丁苯橡胶 相对分子质量 相对分子质量分布 门尼粘度 凝胶渗透色谱法 |
| 英文关键词: natural rubber polybutadiene rubber butadiene styrene rubber relative molecular weight relative molecular weight distribution gel permeation chromatography |
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| 摘要点击次数: 2109 |
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| 中文摘要: |
| 利用凝胶渗透色谱（GPC）法测试几种常用橡胶的相对分子质量及其分布，分析其与胶料门尼粘度和物理性能的相关性。结果表明，天然橡胶（NR）的重均相对分子质量较大，相对分子质量分布较宽，不同产地、厂家生产的NR相对分子质量及其分布、生胶门尼粘度差异较大。GPC法测得的NR相对分子质量及其分布与生胶门尼粘度之间的变化规律具有局限性。橡胶相对分子质量分布指数的差异影响胶料加工性能。橡胶微观结构是影响硫化胶物理性能的主要因素。 |
| 英文摘要: |
| The gel permeation chromatography（GPC） was used to test the relative molecular weight and its distribution of several commonly used rubber，and their correlations with the Mooney viscosity and physical properties of the compound were analyzed.The results showed that，NR had a large relative weight average molecular weight and a wide relative molecular weight distribution，and the relative molecular weight distribution and Mooney viscosity of NR produced by different countries and manufacturers were quite different.The relationship between the relative molecular weight and its distribution measured by GPC and the Mooney viscosity of NR had limitations.The processability of the compound was affected by the relative molecular weight distribution index of raw rubber.The microstructure of rubber was the main factor affecting the physical properties of the vulcanizate. |
| Author Name | Affiliation | E-mail | | LI Wei | Triangle Tyre Co.,Ltd,Weihai,Shandong,264200 | liw0822@126.com | | Xu Yi | Triangle Tyre Co.,Ltd,Weihai,Shandong,264200 | | | Wang Dapeng | Triangle Tyre Co.,Ltd,Weihai,Shandong,264200 | | | Deng Caixia | Triangle Tyre Co.,Ltd,Weihai,Shandong,264200 | |
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