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...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。72h 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%。展开更多
Five amido thiol tin compounds, bis N,N dialkylaminocarbonylethyl tin bis iso octyl sufenylacetates, were prepared by reacting esters thiol tin or ester tin dichloride with secondary amines. The structures of the comp...Five amido thiol tin compounds, bis N,N dialkylaminocarbonylethyl tin bis iso octyl sufenylacetates, were prepared by reacting esters thiol tin or ester tin dichloride with secondary amines. The structures of the compounds were determined by IR, 1H NMR , 119 Sn NMR and elemental analysis. The new compounds have a good heat stability for PVC resin, among them bis N,N dihydroxyethylaminocarbonylethyl tin bis iso octyl sufenylacetate is the best one.展开更多
文摘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。72h 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%。
文摘Five amido thiol tin compounds, bis N,N dialkylaminocarbonylethyl tin bis iso octyl sufenylacetates, were prepared by reacting esters thiol tin or ester tin dichloride with secondary amines. The structures of the compounds were determined by IR, 1H NMR , 119 Sn NMR and elemental analysis. The new compounds have a good heat stability for PVC resin, among them bis N,N dihydroxyethylaminocarbonylethyl tin bis iso octyl sufenylacetate is the best one.
