南京工业大学学报（自然科学版）2024，Vol.46Issue(3)：281-289,9.DOI:10.3969/j.issn.1671-7627.2024.03.005
羟基化玻璃纤维增强SiO2气凝胶的制备及性能
Preparation and properties of reinforced SiO2 aerogel with hydroxylated glass fiber
摘要
Abstract
Hydroxylated glass fibers are used as reinforcement to enhance the mechanical properties of SiO2 aerogel.The optimal process parameters were determined through orthogonal experiments.A comparative study was conducted on the effects of glass fiber hydroxylation,as well as the amount and length of fiber additions on SiO2 aerogels,including an investigation of their mechanisms of influence.The results showed that the porosity of SiO2 aerogel obtained from the optimal composition ratio reached 97.34％.Hydroxylated glass fibers effectively improved the mechanical properties of SiO2 aerogel.When the added mass fraction was 5％and the ratio of short fibers(3 mm)to long fibers(10 mm)was 2:8,the thermal conductivity of SiO2 aerogel was 0.028 4 W/(m·K)and the compressive strength reached 0.37 MPa.关键词
SiO2气凝胶/玻璃纤维/力学性能/导热系数/轻质/多孔Key words
SiO2aerogel/glass fiber/mechanical property/thermal conductivity/lightweight/porous分类
通用工业技术引用本文复制引用
时钒,展望,李丽霞,绪志远,尤杰,张庆武,陈乐,孔庆红,陈明毅..羟基化玻璃纤维增强SiO2气凝胶的制备及性能[J].南京工业大学学报（自然科学版）,2024,46(3):281-289,9.基金项目
国家自然科学基金(52004131,52204213) （52004131,52204213）
江苏大学应急管理学院大学生科研训练培育项目(JG-03-07) （JG-03-07）
