纳米级增强体复合硅气凝胶的研究进展
收稿日期: 2019-10-20
网络出版日期: 2020-04-22
基金资助
“十三五”国家重点研发计划子课题(2016YFC0701002-02);吉林省教育厅“十三五”科学技术项目(JJKH20170239KJ)
Research progress of nano-sized reinforced silica aerogel composites
Received date: 2019-10-20
Online published: 2020-04-22
赵洪凯 , 邵凯 , 刘威 . 纳米级增强体复合硅气凝胶的研究进展[J]. 无机盐工业, 2020 , 52(4) : 7 -11 . DOI: 10.11962/1006-4990.2019-0269
The application of silica aerogel is restricted due to its high brittleness and low mechanical strength.Conventional reinforced silica aerogel composites with micron size or larger can improve the properties of silica aerogel,but it is difficult to enhance the pore size in the nanometer size range.At present,synthetic polymer nanofibers,cellulose nanofibers,nanotubes,inorganic nanofibers,graphene and graphene oxide etc.could be used to enhance the properties of silica aerogel.The nano-sized reinforced material can be evenly dispersed in the nano-sized pores of silica aerogels.It has the advantages of low dry shrink and large specific surface area,which can effectively improve compressive strength and toughness of silica aerogel.
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