期刊
POLYMER COMPOSITES
卷 41, 期 7, 页码 2652-2661出版社
WILEY
DOI: 10.1002/pc.25564
关键词
carbon nanotube; elevated temperature; PI coatings; tribological properties
资金
- Energimyndigheten [2017-008200]
- Kempestiftelserna [JCK-1903.1, SMK-1740]
- National Natural Science Foundation of China [21808102]
- Stiftelsen for Miljostrategisk Forskning [MI16.23]
- Svenska Forskningsradet Formas [2016-01098]
- VINNOVA [2018-04274]
- Formas [2016-01098] Funding Source: Formas
- Swedish Research Council [2016-01098] Funding Source: Swedish Research Council
This work mainly focuses on the development and characterization of polyimide (PI) based composite coatings filled with multi-walled carbon nanotubes (MWCNT) on a steel substrate. The tribological properties of PI/MWCNT composite coatings at different temperatures ranging from room temperature (RT) to 200 degrees C were investigated. Also, the influence of MWCNT and thermal & mechanical properties of PI composites coatings were measured. The addition of MWCNT could reduce the friction coefficient as well as wear volume at elevated temperatures. The PI/3MWCNT composites coatings show better wear-resistant properties as compared to other composites. Also, the PI/MWCNT composites showed improved mechanical properties such as micro-hardness and nanoindentation. Formation of an organic-inorganic structure due to the inclusion of MWCNT, enhance the mechanical properties and reduce the thermo-degradation of composites coatings. The glass transition temperature (T-g) of the PI/MWCNT composites was improved as the MWCNT content increases from 0.1 to 5 wt%.
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