Open AccessPreparation and researching the properties of organic aerogels based on epoxy resins
Author(s) -
Alexey Voytik,
Г. В. Малков,
Artur T. Kapasharov,
Е. И. Кнерельман,
A. Kostin
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/848/1/012097
Subject(s) - epoxy , materials science , supercritical drying , polymerization , curing (chemistry) , aerogel , solvent , dispersion polymerization , dispersion (optics) , chemical engineering , supercritical fluid , specific surface area , infrared spectroscopy , organic solvent , catalysis , composite material , organic chemistry , polymer , chemistry , physics , engineering , optics
The aim of this work was to develop methods for the synthesis of organic gels based on epoxy resins and the production of their aerogels. In general, aerogels are obtained from gel samples that consist of a high-molecular spatial network and a low-molecular dispersion medium - solvent. Various drying methods are used to remove liquid from gel pores, the most reliable of which, allowing to obtain samples of aerogels with undamaged spatial structure, is drying in supercritical fluid medium. As a result of the work the aerogels of different density were obtained, the dependence of density on the solvent content in the samples was revealed. The obtained aerogels were characterized by density, studied by infrared spectroscopy to assess the degree of polymerization of the resin, as well as using the BET method to determine the specific surface area of the samples and obtain its dependence on the catalyst content and curing conditions.