| PVC用环保型热稳定体系的复配研究 |
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| 引用本文： | 张书华,曹俭,刘波.PVC用环保型热稳定体系的复配研究[J].中国塑料,2008,22(9). |
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| 作者姓名： | 张书华 曹俭 刘波 |
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| 作者单位： | 哈尔滨理工大学化学与环境工程学院;上海工程技术大学化学化工学院 ; |
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| 基金项目： | 佛山市科技局科技发展专项资金项目(2005040161) |
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| 摘 要： | 对酯基锡热稳定剂与硬脂酸类、环氧类以及烷基锡类等无毒或低毒热稳定剂进行了复配研究，用刚果红法和流变仪对复配体系进行了静态和动态热稳定性测试。静态热稳定性实验结果表明：硬脂酸钡、硬脂酸锌与酯基锡热稳定剂复配，体系的静态热稳定时间从32 min增至49 min；环氧助稳定剂与酯基锡有较好的协同效应；烷基锡与酯基锡复配，体系的热稳定时间由32 min增加到57 min。高于加工温度下的动态实验结果表明，酯基锡/烷基锡复合体系透明性良好，动态热稳定性好于钙锌复合热稳定剂体系。72 h紫外辐照老化实验结果表明，酯基锡/烷基锡复合体系有优异的耐紫外老化性能，老化后的拉伸强度保持率为98.14 %，断裂伸长率保持率为91.71 %。
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| 关 键 词： | 聚氯乙烯 热稳定剂 复配 酯基锡 |
Compound Experiment of Environmentally Friendly Heat Stabilizers Applied to PVC |
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| ZHANG Shu-hua CAO Jian LIU Bo.Compound Experiment of Environmentally Friendly Heat Stabilizers Applied to PVC[J].China Plastics,2008,22(9). |
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| Authors: | ZHANG Shu-hua CAO Jian LIU Bo |
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| Affiliation: | 1;2;1.School of Chemical and Environmental Engineering;Harbin University of Science and Technology;Harbin 150040;China;2.School of Chemistry and Chemical Engineering;Shanghai University of Engineering Science;Shanghai 201620;China |
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| Abstract: | The static and dynamic stabilities for PVC was compared for combination of ester-tin with various assistant stabilizers including stearate,epoxide,and alkyl tin by means of congo red rheometer. By compounding ester-tin with Ba/Zn and alkyl tin,the heat stability time increased from 32 min to 49 min and 32 min to 57 min,respectively.A good synergistic effect was observed when epoxide was used as an assistant stabilizer.The combination of ester-tin with alkyl tin not only resulted in a better transparency,but... |
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