Physicochemical properties and structure of aerogel type composites on the basis of polyvinyl alcohol/carbon black
- 作者: Kokhanovskaya O.A.1, Razdiakonova G.I.1, Likholobov V.A.1
-
隶属关系:
- Institute of Hydrocarbon Processing, Siberian Branch
- 期: 卷 8, 编号 5 (2017)
- 页面: 739-744
- 栏目: General Purpose Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/206851
- DOI: https://doi.org/10.1134/S2075113317050136
- ID: 206851
如何引用文章
详细
The porous structure and physicochemical properties of aerogel type composites on the basis of polyvinyl alcohol/carbon black obtained by gas cryotreatment of a foamed composite are studied. The materials consist of more than 50 wt % carbon and have a real density of no less than 0.79 g/cm3 (the bulk density is less than 0.27 g/cm3). It is found that the molecular weight of polyvinyl alcohol and the presence of sodium tetraborate affect the size of the macropores of aerogel type composites, while carbon black does not affect this parameter. The dependence of the specific surface area of carbon black and average size of the macropores of aerogel type composites on their specific surface area is found. The thermal stability of the materials does not depend on their composition and synthesis conditions and falls within the range of 260–280°C. The thermal conductivity of the aerogel type composites on the basis of polyvinyl alcohol/carbon black is in the range of 33–59 mW/(m K). These materials are recommended for application as heat insulators.
作者简介
O. Kokhanovskaya
Institute of Hydrocarbon Processing, Siberian Branch
编辑信件的主要联系方式.
Email: kokolga@yandex.ru
俄罗斯联邦, Omsk, 644040
G. Razdiakonova
Institute of Hydrocarbon Processing, Siberian Branch
Email: kokolga@yandex.ru
俄罗斯联邦, Omsk, 644040
V. Likholobov
Institute of Hydrocarbon Processing, Siberian Branch
Email: kokolga@yandex.ru
俄罗斯联邦, Omsk, 644040
补充文件
