| 王爱盛,徐凯,孙艳玲,陈建军.硅烷偶联剂总硫含量与平均硫链长度的测试[J].橡胶科技,2022,20(3):0147-0151. |
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| 硅烷偶联剂总硫含量与平均硫链长度的测试 |
| Determination of Total Sulfur Content and Average Sulfur Chain Length of Silane Coupling Agent |
| 投稿时间：2021-06-16 修订日期：2021-06-16 |
| DOI：10.12137/j.issn.2095-5448.2022.03.0147 |
| 中文关键词: 硅烷偶联剂 总硫含量 平均硫链长度 元素分析 高效液相色谱 |
| 英文关键词: silane coupling agent total sulfur content average sulfur chain length elemental analysis HPLC |
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| 中文摘要: |
| 研究固体和液体偶联剂Si69总硫含量与平均硫链长度的测试方法。采用元素分析仪，以管式炉燃烧-红外吸收法测试偶联剂Si69的总硫含量；用质量分数为0.28%的四丁基溴化铵/乙醇/甲醇溶液（体积比为18/45/137）作为流动相，C18柱分离，等度洗脱的方式，采用高效液相色谱仪测试偶联剂Si69的平均硫链长度。结果显示，固体偶联剂Si69试样的总硫含量为11.512%，平均硫链长度为3.59；液体偶联剂Si69试样的总硫含量为21.924%，平均硫链长度为3.60；固体偶联剂Si69总硫含量的测试精密度比液体偶联剂Si69高。 |
| 英文摘要: |
| The determination of total sulfur content and average sulfur chain length of solid and liquid silane coupling agent Si69 was studied.The total sulfur content of coupling agent Si69 was measured by tube furnace combustion-infrared absorption method with elemental analyzer.The average sulfur chain length of the coupling agent Si69 was measured by high performance liquid chromatography（HPLC） using tetrabutylammonium bromide with mass fraction of 0.28%/ethanol/methanol solution (18/45/137 by volume ratio) as mobile phase，C18 column separation，isometric elution method.The results showed that the total sulfur content of solid coupling agent Si69 sample was 11.512%，and the average sulfur chain length was 3.59.The total sulfur content of liquid coupling agent Si69 sample was 21.924%，and the average sulfur chain length was 3.60.The determination precision of total sulfur content of solid coupling agent Si69 was higher than that of liquid coupling agent Si69. |
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