无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2019, Vol. 51 ›› Issue (5): 33-37.

• 研究与开发 • 上一篇    下一篇

机械力化学制备锡酸锌及其在PVC中的阻燃应用

李杰康,谢吉星()   

  1. 河北大学化学与环境科学学院,河北保定 071002
  • 收稿日期:2018-11-25 出版日期:2019-05-10 发布日期:2020-04-28
  • 通讯作者: 谢吉星
  • 作者简介:李杰康(1993— ),男,硕士研究生。

Mechano-chemical preparation of zinc stannate and its flame-retardant application in PVC

Li Jiekang,Xie Jixing()   

  1. College of Chemistry & Environmental Science,Hebei University,Baoding 071002,China
  • Received:2018-11-25 Online:2019-05-10 Published:2020-04-28
  • Contact: Xie Jixing

摘要:

以二氧化锡(SnO2)和氧化锌(ZnO)为原料,通过机械力化学湿法球磨,制备了锡酸锌(ZS),再与水滑石按一定比例研磨得到锡酸锌改性的水滑石(ZS/HT)。通过扫描电子显微镜、X射线衍射、透射电子显微镜对合成的ZS与ZS/HT做了表征。将制得的ZS/HT应用于PVC制得阻燃PVC样品,当加入10%(ZS与水滑石的质量比)ZS/HT时材料的极限氧指数比纯PVC样品高3.5%,同时材料的力学性能有所增加。热重分析结果表明,ZS/HT的加入促使PVC提前分解成炭,有效提高PVC材料的残炭量。

关键词: 机械力化学, 锡酸锌, 水滑石, 阻燃剂, PVC

Abstract:

Zinc stannate(ZS) was prepared by mechanical force chemical wet ball milling using tin dioxide(SnO2) and zinc oxide(ZnO) as raw materials,and then zinc stannate modified hydrotalcite(ZS/HT) was obtained by mixed with hydrotalcite in a certain ratio.The synthesized ZS and ZS/HT were characterized by scanning electron microscopy,X-ray diffraction and transmission electron microscopy.The obtained ZS/HT was applied to PVC to obtain flame-retardant PVC.When 10%(mass ratio of ZS to hydrotalcite) ZS/HT was added,the limiting oxygen index of the material was 3.5% higher than that of the pure PVC sample,and the mechanical properties of the material were improved.Thermogravimetric analysis results showed that the addition of ZS/HT promoted the early decomposition of PVC to form char layer,which effectively increased the amount of char residue in PVC materials.

Key words: mechanical chemistry, zinc stannate, hydrotalcite, flame retardant agent, PVC

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