摘要
氙灯老化和紫外光老化是常见的评估材料耐久性和寿命的光照老化试验方法,通过光照老化试验以指导材料的设计和生产工作,从而保证产品质量,但目前关于PA66材料在光照老化下性能变化的数据较少,本文以注塑成型法制备而成的PA66材料为研究对象,分别在紫光老化试验箱和氙灯老化试验箱下进行光照老化试验,对比研究了该复合材料在不同光照类型下老化后的力学性能的变化情况,结果表明:氙灯老化试验672h后,PA66材料的拉伸强度降低了6.87%,冲击强度降低了10.45%,紫外光灯老化试验672h后,PA66材料的拉伸强度降低了8.61%,冲击强度降低了14.55%,紫外光老化速率大于氙灯老化速率。PA66材料在使用过程中应避免光照直射,防止材料力学性能下降。
Xenon lamp aging and ultraviolet light aging are commonly used light aging test methods to evaluate the durability and lifespan of materials.These experiments can guide the design and production of materials,ensuring product quality.However,there is currently a lack of data on the performance changes of PA66 materials under light aging.This article takes PA66 material prepared by injection molding method as the research object,and conducts light aging tests in UV aging test chamber and xenon lamp aging test chamber,comparing and analyzing the changes in mechanical properties of the material after aging under different types of light.The results showed that after 672 h of xenon lamp aging test,the tensile strength of PA66 material decreased by 6.87%and the impact strength decreased by 10.45%;After 672 h of UV aging test,the tensile strength of PA66 material decreased by 8.61%and the impact strength decreased by 14.55%.It can be seen that the aging rate of ultraviolet light is higher than that of xenon lamp.Therefore,when using PA66 material,direct sunlight should be avoided to prevent a decrease in its mechanical properties.
作者
闫明
王一焱
王伟
王康
Yan Ming;Wang Yiyan;Wang Wei;Wang Kang(Changzhou Borui Electric Power Automation Equipment Co.LTD.,Changzhou 213025,Jiangsu,China)
出处
《橡塑技术与装备》
2025年第9期52-55,共4页
China Rubber/Plastics Technology and Equipment
作者简介
闫明(1993-),男,学士,工程师,主要从事金属材料理化性能检测、失效分析工作。
