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| Accelerated Aging Behavior of High Performance Polyether Ether Ketone Plastics |
| Received:May 08, 2023 Revised:July 03, 2023 |
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| DOI：10.7643/issn.1672-9242.2023.08.013 |
| KeyWord:special engineering plastics polyether ether ketone ultraviolet light aging mechanical properties aging behavior microscopic performance. |
| Author | Institution |
| SUN Yan |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
| WANG Deng-xia |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
| LI Jia-kai |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
| ZHONG Yong |
Southwest Institute of Technology and Engineering, Chongqing , China |
| XIE Ke-yong |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
| AN Qi |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
| WANG Xin-bo |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
| LI Hui |
Shandong Institute of Non-metallic Materials, Shandong Jinan , China |
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| Abstract: |
| The work aims to study the aging behavior of special engineering plastic polyether ether ketone (PEEK) in ultraviolet irradiation. The PEEK plastic was tested by ultraviolet light accelerated aging. Appearance change, mechanical properties, thermal properties, and microstructure of aged samples were analyzed and characterized to determine the effect of ultraviolet irradiation environment factors on material properties and further determine the aging behavior of the PEEK plastic in ultraviolet irradiation. With the increase of the ultraviolet aging time, various changes happened to PEEK sample, including surface turning yellow, darken color, bulge and crack appearing. Meanwhile, the mechanical and thermal properties, infrared characteristic absorption peak, element content and valence state in the PEEK sample did not show significant changes. The thermal properties on the sample surface reduced. There was apparent change in the characteristic absorption peak of the Attenuation Reflectance Fourier Transformation Infrared Spectrometry (ATR-FTIR). The above results demonstrate that PEEK was sensitive to ultraviolet radiation. It is likely to suffer from surface decomposition in ultraviolet radiation. But it would not cause apparent change in overall mechanical and thermal properties of the material in a short period. |
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