硅酸盐通报2017，Vol.36Issue(9)：2969-2975,7.
AFt@SiO2核/壳结构的制备及其性能研究
Preparation and Performance of AFt@SiO2 Core/Shell Structure
摘要
Abstract
Ettringite(AFt,3CaO· Al2O3· 3CaSO4· 32H2O)possessed the potential to be used as flame retardant material because of its plenty crystal water .Al2(SO4)3· 18H2O and Ca(OH)2 was used as raw materials and reacted in a hydrothermal condition of 200 ℃ to implement the experiment of synthesising ettringite .The influences of the concentration of raw material , reaction time and pH value on the product were researched.An improved St?ber method was used to coat a shell of SiO 2 on the surface of ettringite crystal in order to prepare AFt/SiO2 core/shell structure .The products were characterized by XRD , SEM, FT-IR, and TG.The results show that hydrothermal method can be used to synthesize ettringite crystal with high purity and excellent crystallinity , pH=10 is a suitable circumstance of the growth of ettringite crystals .The coating of SiO 2 can control the dehydration speed of AFt and decrease the moisture content of AFt .关键词
阻燃/钙矾石/水热法/二氧化硅/包覆Key words
flame retardant/ettringite/hydrothermal method/silica/coat分类
通用工业技术引用本文复制引用
周浩波,廖伟,杜爱红,陆春华,许仲梓..AFt@SiO2核/壳结构的制备及其性能研究[J].硅酸盐通报,2017,36(9):2969-2975,7.基金项目
江苏高校优势学科建设工程项目(PAPD) （PAPD）
青蓝工程 （）
江苏省"六大人才高峰"项目(XCL-029) （XCL-029）
