Preparation and Application of PTFE Aqueous Dispersion Modified Waterborne Polyurethane Self-lubrication Coatings |
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DOI: |
Key Words: PTFE aqueous dispersion;wear-resistance;EPDM;polyurethane;waterborne coating |
Author Name | Affiliation | YANG Jing | Anhui ADZD Rubber Technology Development Co.,Ltd Anhui Key Laboratory of High Performance Rubber Materials and Products | ZHANG Lyu | Anhui ADZD Rubber Technology Development Co.,Ltd Anhui Key Laboratory of High Performance Rubber Materials and Products | ZHANG Yuchuan | Anhui ADZD Rubber Technology Development Co.,Ltd Anhui Key Laboratory of High Performance Rubber Materials and Products Anhui Province Key Laboratory of Environment-friendly Polymer Materials |
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Abstract: |
Wear-resistant self-lubrication coatings for EPDM goods were prepared by adding the PTFE aqueous dispersion,color paste and additives into organosilicone modified waterborne PU emulsion,and the thickness,adhesive force and wear-resistance of the coating on the surface of vulcanized EPDM sample were studied. The test results showed that the thickness of the matte black coating with strong adhesion was about 5~10 μm,and the sliding friction coefficient was under 0.4. When the addition level of the PTFE aqueous dispersion was 10 phr(when the addition level of organosilicone modified waterborne PU emulsion was 100 phr),the adhesive force of the coating met the requirements,the sliding friction coefficient was significantly decreased,and the self-lubrication property and wear-resistance could reach the requirements of application. |
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