硅酸盐通报2024，Vol.43Issue(5)：1756-1763,8.
3D打印柔性SiO2气凝胶复合材料的研究
Study on 3D Printing Flexible SiO2 Aerogel Composites
摘要
Abstract
SiO2 aerogel is an excellent thermal insulation material,which has excellent properties,due to its special network structure,such as high specific surface area,high porosity,low thermal conductivity and low density.However,the mechanical properties of SiO2 aerogel are fragile,which makes it difficult to prepare complex and miniature components by traditional manufacturing methods,which greatly hinders the development and application of SiO2 aerogel in the field of heat insulation.In this paper,flexible SiO2 aerogel composites were prepared by 3D printing direct writing technology.By studying the content of different polyvinyl alcohol solutions and sodium stearate,the optimal slurry ratio was found.The thermal conductivity of the printed flexible SiO2 aerogel composites at 100 ℃ is as low as 0.026 W/(m·K),and it has good compression performance,bending performance and hydrophobicity.This study provides a possibility for the large-scale application of SiO2 aerogel.关键词
气凝胶/SiO2/3D打印/柔性/低热导率/疏水Key words
aerogel/SiO2/3D printing/flexible/low thermal conductivity/hydrophobicity分类
通用工业技术引用本文复制引用
陈浩,储成义,王雨婷,鲍希希,邱琢皓,程昱川,郭建军,单兴刚,孙爱华..3D打印柔性SiO2气凝胶复合材料的研究[J].硅酸盐通报,2024,43(5):1756-1763,8.基金项目
国家自然科学基金(52273241) （52273241）
浙江省教育厅科研项目(Y202248464) （Y202248464）
