Research on the Aging Testing Methods for Aramid Ⅲ Fiber-Reinforced Composite Materials
Aramid Ⅲ fiber-reinforced composite materials are widely used in the fields such as aerospace,military,and personal protective equipment.During the processes of applications and storages,the materials are affected by factors such as temperature,water,chemicals and ultraviolet radiation.These factors could lead to the deterioration of material properties to varying degrees and even lead to the loss of its original functions.In this paper,to simulate how materials are affected by environmental conditions in application scenarios,the artificial accelerated aging experiments were conducted on materials by using a thermal aging test chamber,a temperature shock test chamber and a xenon lamp aging test chamber.The results indicate that,in the artificial accelerated aging experiments of aramid Ⅲ fiber-reinforced composite materials,the appropriate aging time,temperature,humidity,irradiance and other conditions should be selected according to the practical application scenarios.Extending the aging time appropriately could improve the stability of test results.For the aramid Ⅲ fiber-reinforced composite material after aging,adjusting the condition time for more than 16 h could reduce the dispersion of test results.The results of xenon lamp aging experiments show that the mechanical properties of the resin matrix are relatively affected by temperature,while the aramid Ⅲ fibers are more sensitive to light and moisture.The bases for scientifically and reasonably selecting corresponding aging testing methods were obtained by analyzing the effects of different aging testing conditions on the test results of aramid Ⅲ fiber-reinforced composite materials.
Aramid III Fiber-Reinforced Composite MaterialAgingMechanical Property
万方数据
维普
