仿生合成羟基锡酸锌包覆碳酸钙及其对PVC的阻燃研究

Biomimetic synthesis of zinc hydroxystannate-coated calcium carbonate and its application in PVC

采用仿生合成的方法,以十二烷基苯磺酸钠(SDBS)为模板,在水溶液中制备了羟基锡酸锌包覆碳酸钙(ZHSCC-1),并将其和不添加SDBS模板制备的羟基锡酸锌包覆碳酸钙(ZHSCC-2)分别应用在PVC中进行对比研究。结果表明:在ZHSCC含量相同时,ZHSCC-1对PVC的阻燃消烟效果明显优于ZHSCC-2,且前者对PVC的拉伸强度、断裂伸长率、抗冲强度的有益影响都优于后者。

Taking sodium dodecyl benzene sulfonate（SDBS）as the template in the water solution,zinc hydroxystannate-coated calcium carbonate（ZHSCC-1）was prepared by biominetic synthesis method,and zinc hydroxystannate-coated calcium carbonate（ZHSCC-2）was also prepared in water solution without SDBS.Both ZHSCC-1 and ZHSCC-2 were studied as the flame retardant of PVC.The results showed that,when ZHSCC at the same addition level,not only the flame retardant and smoke suppressant effects of ZHSCC-1 were better than those of ZHSCC-2,but also the beneficial effects of the former were better than those of the latter.