| Determination of Rubber Oil Content in Vulcanizate |
| Received:May 27, 2019 Revised:May 27, 2019 |
| DOI：10.12136/j.issn.1000-890X.2020.06.0472 |
| Key Words: vulcanizate；rubber oil；determination；column chromatography |
| Author Name | Affiliation | E-mail | | DING Wenli* | Stone Laboratory Co. ，Ltd | dingwl@stonelab.com.cn | | QI Shengkai | Stone Laboratory Co. ，Ltd | | | WANG Chao | Stone Laboratory Co. ，Ltd | | | WU Aiqin | Stone Laboratory Co. ，Ltd | |
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| Abstract: |
| The method of determination of the rubber oil content in the vulcanizate was established by using solvent extraction and silica gel column chromatography. The vulcanizate sample was firstly extracted by solvent and then the extractive substance was separated out by chromatography. The experimental testing results showed that the maximum relative standard deviation of the mass fraction of the rubber oil in the vulcanizate determined by this method was 2. 3%，and the recovery rate was 88. 0% to 104. 1%. The method was easy to operate，and the results were accurate and reliable. |
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