Preparation of Ultra-light Xonotlite Thermal Insulation Material Using Carbide Slag  

作　　者：刘飞 曹建新 

机构地区：[1]ollege of Materials Science and Engineering, South China University of Technology [2]School Chemistry and Chemical Engineering, Guizhou University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2010年第2期295-297,共3页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Guizhou Province Technological Breakthroughs Fund(No.20063030);the Guiyang City Technology and Industry Fund(No.200616-9);the Guizhou Science and Technology Founda-tion(No.[2009]2052)

摘　　要：Using carbide slag as the calcareous materials, xonotlite thermal insulation material was successfully prepared via dynamic hydrothermal synthesis. The experimental results show that the xonotlite thermal insulation material is made up of large numbers of ＂chestnut bur shape＂ particles. Optimum conditions of calcination temperature of carbide slag, synthesis reaction temperature and time, stirring rate, CaO/SiO2 mol ratio, water/solid weight ratio, amount of fiberglass, molding pressures, dryness temperatures and the presence of dispersant （glycol and polyvinyl alcohol） favor the preparation of xonotlite thermal insulation material. The evaluation of xonotlite thermal insulation material reveals that the product is ultra-light and excellent in physical performances. Such a little amount of impurities in carbide slag has no effect on the phase, morphology, stability at high temperature and physical performances of products.Using carbide slag as the calcareous materials, xonotlite thermal insulation material was successfully prepared via dynamic hydrothermal synthesis. The experimental results show that the xonotlite thermal insulation material is made up of large numbers of ＂chestnut bur shape＂ particles. Optimum conditions of calcination temperature of carbide slag, synthesis reaction temperature and time, stirring rate, CaO/SiO2 mol ratio, water/solid weight ratio, amount of fiberglass, molding pressures, dryness temperatures and the presence of dispersant （glycol and polyvinyl alcohol） favor the preparation of xonotlite thermal insulation material. The evaluation of xonotlite thermal insulation material reveals that the product is ultra-light and excellent in physical performances. Such a little amount of impurities in carbide slag has no effect on the phase, morphology, stability at high temperature and physical performances of products.

关 键 词：carbide slag ultra-light xonotlite hydrothermal synthesis thermal insulation material 

分 类 号：O611.3[理学—无机化学]