摘要
Aluminum sol,dry gel,and film were prepared by sol-gel and a dipping-withdrawing method.The effect of polyethylene glycol(PEG)on the behavior of aluminum sol,gel,and film was investigated by DLS,rotary viscometer,XRD,IR,EPMA,and light microscope,respectively.The solid gels drying at room temperature was identified as amorphous phase,and the addition of PEG nearly has no effect on the structure of aluminum dry gel.It is indicated that the sol viscosity decreases with the PEG content increasing,while the micelle size in sol decreases first then increases.The uniformity and attached particles of the film are improved to a certain extent after PEG addition.According to the analytic results,we demonstrate that the improvement is caused by low viscosity and small micelle size of sol resulting from the PEG addition.
作者
田培静
LI Man
YUAN Jian
ZHENG Weihong
WANG Jing
TIAN Peijing;LI Man;YUAN Jian;ZHENG Weihong;WANG Jing(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Shahe Research Institute of Glass Technology,Xingtai 054100,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan 430070,China)
基金
Funded by the Fundamental Research Funds for the Central Universities(WUT:2020Ⅲ017GX)
the National Key Research and Development Program of China(No.2016YFB0303700)。