| Synthesis and application of antimony pent（isooctyl thioglycollate） |
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| 引用本文： | 刘又年,李红兵,舒万艮,陈启元.Synthesis and application of antimony pent（isooctyl thioglycollate）[J].中南工业大学学报(英文版),2005,12(1):64-67. |
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| 作者姓名： | 刘又年 李红兵 舒万艮 陈启元 |
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| 作者单位： | SchoolofChemistryandChemicalEngineering,CentralSouthUniversity,Changsha410083,China |
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| 基金项目： | 中南大学校科研和教改项目 |
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| 摘 要： | A new type of thermal stabilizer, antimony pent (isooctyl thioglycollate) (Sb(SCH2 COOC8 H17 )5), was synthesized by using antimony trioxide, isooctanol and thioglycolic acid in 2 steps. Firstly, antimony trioxide was oxidized into colloidal antimony peroxide. Then antimony peroxide and isooctyl thioglycollate reacted stoichiometrically for 2 h with the yield of 87%. This compound was used as thermal stabilizer for polyvinyl chloride(PVC).The results show that the thermal stability time is 52 rain at 200℃ by heat-ageing oven test when adding 2. 5% thermal stabilizer to PVC resin. Compared with antimony tris(isooctyl thiolycollate), the initial thermal stability of antimony pent(isooctyl thioglycollate) is better than that of antimony tris(isooctyl thioglycollate), while the longterm thermal stability time is shorter than that of antimony tris(isooctyl thioglycollate). Meanwhile, the synergism of antimony pent(isooctyl thioglycollate) with calcium stearate was studied, indicating that when the mass ratio of antimony pent(isooctyl thioglycollate) to calcium stearate is 2:1, the thermal stability time of PVC is 58 min.
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| 关 键 词： | 胶体过氧化锑 PVC 热稳定剂 合成方法 |
| 收稿时间： | 25 October 2003 |
| 修稿时间： | 28 December 2003 |
Synthesis and application of antimony pent(isooctyl thioglycollate) |
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| LIU You-nian,LI Hong-bing,SHU Wan-gen,CHEN Qi-yuan.Synthesis and application of antimony pent(isooctyl thioglycollate)[J].Journal of Central South University of Technology,2005,12(1):64-67. |
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| Authors: | LIU You-nian LI Hong-bing SHU Wan-gen CHEN Qi-yuan |
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| Affiliation: | (1) School of Chemistry and Chemical Engineering, Central South University, 410083 Changsha, China |
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| Abstract: | A new type of thermal stabilizer, antimony pent(isooctyl thioglycollate)(Sb(SCH2COOC8H17)5), was synthesized by using antimony trioxide, isooctanol and thioglycolic acid in 2 steps. Firstly, antimony trioxide was oxidized into colloidal antimony peroxide. Then antimony peroxide and isooctyl thioglycollate reacted stoichiometrically for 2 h with the yield of 87%. This compound was used as thermal stabilizer for polyvinyl chloride(PVC). The results show that the thermal stability time is 52 min at 200 ℃ by heat-ageing oven test when adding 2.5% thermal stabilizer to PVC resin. Compared with antimony tris(isooctyl thiolycollate), the initial thermal stability of antimony pent(isooctyl thioglycollate) is better than that of antimony tris(isooctyl thioglycollate), while the long-term thermal stability time is shorter than that of antimony tris(isooctyl thioglycollate). Meanwhile, the synergism of antimony pent(isooctyl thioglycollate) with calcium stearate was studied, indicating that when the mass ratio of antimony pent(isooctyl thioglycollate) to calcium stearate is 2:1, the thermal stability time of PVC is 58 min. |
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| Keywords: | colloidal antimony peroxide antimony pent(isooctyl thioglycollate) synthesis PVC thermal stabilizer |
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