Effect of different corrosion environments on compressive properties of carbon fiber composites with impact damage
The performance of carbon fiber composites is greatly affected by the use environment.In this paper,the effects of different aging environments(distilled water,sulfuric acid solution with mass fraction of 10%and so-dium hydroxide solution)at the same temperature(70℃)on the compressive properties and compressive properties of the materials with impact damage of T700 carbon fiber/epoxy resin matrix composites were studied.The mass change,surface morphology,fourier transform infrared spectroscopy(FTIR)and dynamic mechanical properties be-fore and after aging were studied and analyzed.The results show that in distilled water and acid solution,the mois-ture absorption rate curve conforms to FICK's second law.The greater the rate of mass change,the greater the de-crease of compressive properties,compressive properties of the materials with impact damage and glass transition temperature,and the more serious the damage of surface morphology;in the alkali solution,the sample is seriously damaged,and the resin also had a chemical reaction,the properties and glass transition temperature of the material are not only affected by moisture absorption,but also by the chemical reaction of the resin.This research results have important engineering practical significance for the use and storage of T700 carbon fiber/epoxy resin matrix composites in more complex environment.
T700 carbon fiber/epoxy resin matrix compositescompression performancecompressive properties of the materials with impact damagesurface topographydynamic mechanical properties
万方数据
维普
