锌羟基锡酸盐在无定形水合 TiO 固体球上的自组装用于提高环氧树脂的防火安全性。

Self-assembly of zinc hydroxystannate on amorphous hydrous TiO solid sphere for enhancing fire safety of epoxy resin.

机构信息

State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China; Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.

State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China.

出版信息

J Hazard Mater. 2017 Oct 15;340:263-271. doi: 10.1016/j.jhazmat.2017.06.068. Epub 2017 Jun 28.

DOI:10.1016/j.jhazmat.2017.06.068

PMID:28715749

Abstract

Zinc hydroxystannate (ZHS) was fabricated on the surface of amorphous hydrous TiO solid spheres (AHTSS) via a layer-by-layer method for improving the fire safety of epoxy resin. AHTSS@PEI@ZHS was prepared by self-assembly of AHTSS, PEI and ZHS. The well-organized fabrication process was proved by TEM, XPS, XRD and SEM tests. TG results illustrated that the incorporation of AHTSS@PEI@ZHS show a higher residue compared with the addition of AHTSS or ZHS alone. In addition, AHTSS@PEI@ZHS filled EP composites exhibits improved flame retardancy and smoke suppression properties evaluated by cone calorimeter test. TG-IR results also indicated that the catalytic labyrinth structure of AHTSS@PEI@ZHS can effectively decrease the permeation of volatile organic compounds, thereby improving the fire safety of EP resin.

摘要

水合锡酸锌（ZHS）通过层层自组装法被修饰在无定形水合 TiO 纳米球（AHTSS）表面上，用以提高环氧树脂的防火安全性。AHTSS@PEI@ZHS 通过 AHTSS、PEI 和 ZHS 的自组装制备。TEM、XPS、XRD 和 SEM 测试证明了这种有序的制备过程。TG 结果表明，与单独添加 AHTSS 或 ZHS 相比，AHTSS@PEI@ZHS 的加入表现出更高的残余物。此外，通过锥形量热仪测试表明，AHTSS@PEI@ZHS 填充的 EP 复合材料具有更好的阻燃和抑烟性能。TG-IR 结果还表明，AHTSS@PEI@ZHS 的催化迷宫结构可以有效减少挥发性有机化合物的渗透，从而提高 EP 树脂的防火安全性。