中国塑料 ›› 2011, Vol. 25 ›› Issue (11): 80-85 .DOI: 10.19491/j.issn.1001-9278.2011.11.017

• 助剂 • 上一篇    下一篇

混合模板控制合成羟基锡酸锌包覆碳酸钙及其阻燃PVC研究

徐建中 彭飞 焦运红 王宁   

  1. 河北大学 河北大学化学与环境科学学院
  • 收稿日期:2011-07-08 修回日期:1900-01-01 出版日期:2011-11-26 发布日期:2011-11-26

Study on Controlled Synthesis of Zinc Hydroxystannate-coated Calcium Carbonate via Mixed Template and Its Flame Retarded PVC

  

  • Received:2011-07-08 Revised:1900-01-01 Online:2011-11-26 Published:2011-11-26

摘要: 依据生物矿化原理,以十二烷基苯磺酸钠(SDBS)为模板,加入到乙二醇和水的混合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/乙二醇模板制备的羟基锡酸锌包覆碳酸钙(ZHSCC-2)分别应用在聚氯乙烯(PVC)中进行对比研究,并通过X射线衍射、扫描电子显微镜、热重分析及差示扫描量热分析等方法对其性能进行了研究。结果表明,SDBS/乙二醇对碳酸钙形貌有调控作用,羟基锡酸锌对碳酸钙进行了较好的包覆,包覆产物粒径为5 μm的六方形薄片;在含量相同时,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、冲击强度的有益影响均优于后者。

关键词: 聚氯乙烯, 羟基锡酸锌, 模板控制, 碳酸钙, 阻燃

Abstract: Using sodium dodecyl benzene sulfonate (SDBS) as a template in the mixed solution of glycol and water, zinc hydroxystannate-coated calcium carbonate (ZHSCC-1) was prepared. Zinc hydroxystannate-coated calcium carbonate (ZHSCC-2) was prepared in an aqueous solution without SDBS/glycol for comparison. Both ZHSCC-1 and ZHSCC-2 were studied as the flame retardant of PVC. XRD, SEM, and TG-DSC showed that zinc stannate was coated on CaCO3 surface and the product was thin hexagonal pieces with the size about 5 μm. At the same loading, not only the flame retardant and smoke suppressant effects, but also the tensile strength, elongation at break, and impact strength of ZHSCC-1-based PVC were better than those of ZHSCC-2-based system.

Key words: poly(vinyl chloride), zinc hydroxystannate, template control, calcium carbonate, flame retardant