Affiliation:
1. Volgograd State Technical University
Abstract
The characteristics of thermooxidative degradation of the samples of cured epoxy acrylates based on epoxy resins ED-20 and UP-637, as well as their compositions with oligoether acrylate TGM-3, were investigated by the method of simultaneous thermal analysis. It has been found that the photopolymers have a sufficiently high resistance to thermal oxidation, the start temperature of active thermal destruction exceeds 325 ° C. Differences in the chemical structure of the aromatic fragment determine the features of thermal resistance. The addition of an active diluent to the composition is capable to reduce the internal stresses of the polymer structure and to promote a shift in the onset of thermal oxidation to higher temperatures.
Publisher
Volgograd State Technical University
Reference8 articles.
1. Задонцев, Б. Г. Эпоксиакрилаты. Синтез, свойства, применение / Б. Г. Задонцев; АН СССР, Отд-ние Ин-та хим. физики. - Препр. - п. г. т. Черноголовка (Моск. обл.). - ОИХФ, 1990. - 27, [1] с.
2. Петров, Н. С. Исследование синтеза эпоксиакрилового олигомера с помощью спектроскопии ЯМР 1h / Н. С. Петров, Е. В. Сивцов, А. Д. Семенова // Известия Санкт-Петербургского государственного технологического института (технического университета). - 2017. - № 39(65). - С. 57-62.
3. Zhang, X, Xu, Y., Li, L., Bei Yan, B et al. Acrylate-based photosensitive resin for stereolithographic three-dimensional printing // Journal of Applied Polymer Science, Volume 136, Issue 21 2019, p 1- 10.
4. Fang, Ch., Li, N., Liu, Y., Lu, G. Toughening epoxy acrylate with polyurethane acrylates and hyper-branched polyester in three dimensional printing // Materials Research Express, Volume 5, Number 5, 2018, p. 1-10.
5. Li, J., Cui, Y., Qin, K. et al. Synthesis and properties of a low-viscosity UV-curable oligomer for three-dimensional printing // Polymer Bulletin, Volume 73, Issue 2, 2016, p. 571-585.