应用化学2025，Vol.42Issue(10)：1361-1374,14.DOI:10.19894/j.issn.1000-0518.250019
玻璃纤维增强二氧化硅气凝胶毡的低成本制备及性能
Low-Cost Preparation and Performance of Fiberglass Reinforced Silica Aerogel Blanket
摘要
Abstract
Silica aerogel has attracted extensive attention due to its unique three-dimensional network structure,excellent thermal insulation performance,low density and other advantages.However,its poor mechanical properties,fragility,and the problems of complex traditional preparation process,long cycle and high cost limit its large-scale application.In this study,glass fiber-reinforced silica aerogel composite mats were prepared by sol-gel method and atmospheric pressure drying process using cheap sodium silicate as the silicon source and glass fiber as the reinforcing material.The effects of aging time,deionized water dosage and soaking time,trimethylchlorosilane dosage and modification time on the properties of glass fiber reinforced silica aerogel composites were discussed.Under the conditions of an aging time of 10 h,a dosage of 200 mL deionized water,a soaking time of(24+12)h,a dosage of 18 mL trimethylchlorosilane(TMCS),and a modification time of 60 h,the specific surface area of the prepared silica aerogel mat was 776.38 m2/g,the density was 0.228 g/cm3,the thermal conductivity was 0.0218 W/(m·K),the compressive strength was 2.4 MPa,and the tensile strength was 0.5 MPa.The material also exhibits excellent high-temperature stability and hydrophobicity,with a water contact angle of 141.5(°),providing new practical insights for its industrial application in thermal insulation.关键词
SiO2气凝胶毡/玻璃纤维/隔热性能/溶胶-凝胶法/常压干燥Key words
SiO2 aerogel mat/Fiberglass/Thermal insulation/Sol-gel method/Atmospheric pressure drying分类
化学化工引用本文复制引用
薛子航,蹇思豪,韩敏航,李波,郝瑞鑫,马超,苗洋,高峰..玻璃纤维增强二氧化硅气凝胶毡的低成本制备及性能[J].应用化学,2025,42(10):1361-1374,14.基金项目
国家自然科学基金面上项目(No.52472075)、山西省留学归国人员项目(No.2022-042)和山西省自然科学基金(No.202203021221059)资助Supported by the National Natural Science Foundation of China(No.52472075),Shanxi Province Returned Scholar Funding Program(No.2022-042)and the Natural Science Foundation of Shanxi Province(No.202203021221059) （No.52472075）
