Study of prepregs curing at room temperature by three-point bending method

Abstract

46 распространяется на условиях лицензии Creative Commons Attribution 4.0 International (CC BY 4.0). Ключевые слова: эпоксидная смола; отвердитель; препрег; трехточечный изгиб. b ICMM UrB RAS 614013, Perm, Academika Koroleva st., 1The aim of this study was to analyze the storage period and curing rate of prepregs at room temperature. A prepreg is a fabric impregnated with an epoxy mixture. The article considers the process of curing the epoxy mixture of hot curing together with a nylon binder in the form of a tape at room temperature for 36 days. The results of experiments by three-point bending on the tensile testing machine Testometric 115 for 30 samples and eight control days of measurement are presented. Analysis of the results of these experiments showed that the observed curing of prepregs begins from 13 days after their manufacture.