Polyvinylidene fluoride aerogel with high thermal stability and low thermal conductivity

被引：14
作者：
Zhang, Jiayue [1 ]
Kong, Yong [1 ]
Shen, Xiaodong [1 ]
机构：
[1] Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 259卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
PVDF; Sol-gel preparation; Porous materials; Thermal properties; Aerogel; GRAPHENE AEROGEL; SEMI-IPN; TRANSPARENT; CRYSTALLINE; ADSORPTION; SEPARATION; PLATFORM; CARBIDE;
D O I：
10.1016/j.matlet.2019.126890
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A polyvinylidene fluoride (PVDF) aerogel was fabricated by a phase inversion induced sol-gel process along with supercritical drying. The PVDF aerogel exhibited a hierarchical structure consisting of agglomerates and micron-size voids. The agglomerates consisted of nanoparticles and nanopores. The PVDF aerogel showed a water contact angle of 126 degrees and was thermally stable up to 400 degrees C in aerial environment. The thermal conductivity of the PVDF aerogel was as low as 0.03602 W/(m.K). The PVDF aerogel is promisingly applied in thermal insulation under humid conditions and water treatment. (C) 2019 Elsevier B.V. All rights reserved.
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页数：3
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