| 新型PVC热稳定剂——二元羧酸盐的研究 |
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| 引用本文： | 刘艳斌,刘伟区,石磊,侯孟华.新型PVC热稳定剂——二元羧酸盐的研究[J].中国塑料,2006,20(8):75-78. |
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| 作者姓名： | 刘艳斌 刘伟区 石磊 侯孟华 |
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| 作者单位： | [1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院研究生院,北京100049 |
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| 摘 要： | 通过碱中和法制备了己二酸钙、癸二酸钙、癸二酸锌和复分解反应法制备了二聚酸钙，并通过红外检测和元素分析证明了二元羧酸盐的结构，采用刚果红法与热烘法研究了二元羧酸盐对PVC的热稳定作用。结果表明，二元羧酸盐都有不同程度的热稳定性。由于二元羧酸锌存在严重的“锌烧”缺陷，刚果红试纸变色时间较与其有相同羧酸基的钙盐短，如癸二酸钙为37．0min，癸二酸锌为8．0min。几种二元羧酸钙中癸二酸钙对PVC的热稳定效果最好，当其含量达到1％时，对PVC已具有较好的热稳定性效果。
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| 关 键 词： | 聚氯乙烯 二元羧酸盐 热稳定性 |
| 文章编号： | 1001-9278（2006）08-0075-04 |
| 收稿时间： | 2006-03-08 |
| 修稿时间： | 2006-03-08 |
Study on a New Heat Stabilizer for PVC--Dicarboxylate |
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| LIU Yan-bin, LIU Wei-qu , SHI Lei, HOU Meng-hua.Study on a New Heat Stabilizer for PVC--Dicarboxylate[J].China Plastics,2006,20(8):75-78. |
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| Authors: | LIU Yan-bin LIU Wei-qu SHI Lei HOU Meng-hua |
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| Affiliation: | 1. Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China; 2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Calcium adipate, calcium sebacic, acid and zinc sebacic acid were prepared via alkali neutralization process and calcium dimer acid prepared via decomposition reaction, and their structures are identified by IR and elementary analysis. Their heat stabilization effect on PVC was tested by Congo red method and heating method, which showed all the dicarboxylates had reasonable thermostability. Because the degradation of PVC was caused by the catalysis of ZnCl2, the stablizing time of Congo red of zinc dicarboxylate was shorter than that of calcium dicarboxylate, particularly, 37.0 rain for calcium sebacate and 8.0 min for zinc sebacate. Only 1% of calcium sebacate was needed to achieve a good thermostability. |
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| Keywords: | poly(vinyl chloride) dicarboxylate thermostability |
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