Open AccessWater absorption behavior of reinforced epoxy laminates
Author(s) -
Cristian Munteniță
Publication year - 2018
Publication title -
scientific bulletin
Language(s) - English
Resource type - Journals
eISSN - 2392-8956
pISSN - 1454-864X
DOI - 10.21279/1454-864x-18-i1-063
Subject(s) - epoxy , absorption of water , composite material , materials science , composite number , reinforcement , composite laminates , absorption (acoustics) , polymer , matrix (chemical analysis) , work (physics) , mechanical engineering , engineering
In this work, the studied materials are formed with a graduated matrix and reinforced with different types of fabrics. These composites are similar regarding the reinforcement, but the difference between them consists of the epoxy matrix types. Any application of a polymer composite in an outdoor environment invariably involves water absorption and variable thermal conditions. The degradation of composite materials was observed after each cycle, water absorption and frozenunfrozen, from a qualitative (visual) point of view, until the materials reached a saturation degree (the mass of specimens remaining constant after a certain number of cycles). This aspect had led to the conclusion that materials can no longer undergo quantitative changes. The aim of this work is to examine the behavior of materials subjected to environments that simulate atmospheric conditions (water absorption and frozen-unfrozen). The purpose of these materials was to be used in order to form some spare parts of vehicles such as, in case of an impact, to ensure pedestrians protection since they could have controllable strength. This aspect pays a very important role both in economically and environmental terms.