| Study on synthesis of silica encapsulated sulfur microcapsule |
| Received:December 26, 2015 Revised:December 26, 2015 |
| DOI： |
| Key Words: sulfur microcapsule; silica; core-shell structure; coating mechanism |
| Author Name | Affiliation | E-mail | | Tao Lei | Qingdao University of Science and Technology,Key Laboratory of Rubber-Plastics of Ministry of Education,Shandong,Qingdao,266042 | qdpolymer2014@163.com | | Zong Chengzhong* | Qingdao University of Science and Technology,Key Laboratory of Rubber-Plastics of Ministry of Education,Shandong,Qingdao,266042 | qdtaolei@126.com |
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| Abstract: |
| silica encapsulated sulfur microcapsule was prepared by means of hydrolysis of alkyl silicates and subsequent condensation of silicic acid in alkaline solutions with TEOS as silica source, the influence of core/shell ratio, alcohol/water ratio and catalyst concentration were investigated. Uniform sulfur microcapsule could be obtained in the condition of alcohol/water: 85/15~80/20, ammonia dosage: 2.5~3ml with adequate TEOS. The coating mechanism was also demonstrated. |
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