ABS塑料低压低温气候环境适应性快速评价方法  

Rapid Evaluation Method for Climate Environment Adaptability of ABS Plastic at Low Pressure and Low Temperatures

作　　者：向江涛[1] 杨小奎[1] 杨晓然[1] 吴帅[1,2] 张世艳 XIANG Jiang-tao;YANG Xiao-kui;YANG Xiao-ran;WU Shuai;ZHANG Shi-yan(Southwest Technology and Engineering Research Institute,Chongqing 400039,China;Lhasa Tibet,Materials Corrosion in Atmospheric Environment,National Observation&Research Station,Lhasa 850100,China)

机构地区：[1]西南技术工程研究所,重庆400039 [2]西藏拉萨大气环境材料腐蚀国家野外科学观测研究站,拉萨850100

出　　处：《装备环境工程》2022年第2期85-90,共6页Equipment Environmental Engineering

摘　　要：目的研究采用新型低气压环境综合加速试验技术开展ABS塑料低气压低温环境适应性试验的模拟性和加速性。方法对比开展新型低气压环境综合加速试验与低气压低温自然环境试验,分析ABS塑料在两种环境试验中的老化机理、拉伸强度和简支梁缺口冲击强度变化规律的相似性,进一步采用加速转换因子(ASF)法处理试验数据,分析新型低气压环境综合加速试验技术的加速性。结果新型低气压环境综合加速试验后,ABS塑料的红外光谱、拉伸强度和简支梁缺口冲击强度变化规律基本相同,与低气压低温自然环境试验相比,以ABS塑料的拉伸强度变化率统计,加速倍率为10~12.3,以简支梁缺口冲击强度变化率统计,加速倍率为11.6~15.5,两种统计方法下的加速倍率都随时间的延长而改变。结论利用新型低气压环境综合加速试验技术开展评价ABS塑料低压低温环境适应性试验有较好的模拟性和加速性。This paper aims to study the simulation and acceleration of the environmental adaptability test of ABS plastics in low air pressure and low-temperature environment by using a new comprehensive accelerated test technology. By comparing the new low air pressure environment comprehensive accelerated test with the low air pressure and low-temperature natural environment test, the aging mechanism, tensile strength and similarity of variation law of notched impact strength of simply supported beams were analyzed. The acceleration switchover factor(ASF) method was used to process the test data, and the acceleration of the new low air pressure environment comprehensive accelerated test technology was analyzed. After the comprehensive accelerated test in the new low air pressure environment, the variation rules of the infrared spectrum, tensile strength and notched impact strength of ABS plastics are the same. Compared with the natural environmental test in the low air pressure and low-temperature environment, the accelerated ratio is in the range of 10 ~ 12.3 times based on the statistics of the change rate of tensile strength of ABS plastics;Based on the change rate of notched impact strength of the simply supported beam, the accelerated ratio is 11. 6 ~ 15.5 times, and the accelerated ratio under the two statistical methods changes with time. Using the new low air pressure environment comprehensive accelerated test technology to evaluate the low pressure and low-temperature environment adaptability test of ABS plastics has good simulation and acceleration.

关 键 词：低压低温环境 综合加速试验 ABS塑料 加速转换因子 加速性 模拟性 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术]