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| Rapid Evaluation Method for Climate Environment Adaptability of ABS Plastic at Low Pressure and Low Temperatures |
| Received:September 30, 2021 Revised:November 16, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2022.02.014 |
| KeyWord:low pressure and low temperature environment comprehensive accelerated test ABS plastic acceleration switchover factor acceleration simulation |
| Author | Institution |
| XIANG Jiang-tao |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YANG Xiao-kui |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YANG Xiao-ran |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| WU Shuai |
Southwest Technology and Engineering Research Institute, Chongqing , China;Lhasa Tibet, Materials Corrosion in Atmospheric Environment, National Observation & Research Station, Lhasa , China |
| ZHANG Shi-yan |
Southwest Technology and Engineering Research Institute, Chongqing , China |
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| Abstract: |
| 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. |
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