Wetting and friction behavior of chemically bonded <scp>PA‐PTFE</scp> ‐oil compounds
نویسندگان
چکیده
Polyamide (PA), polytetrafluoroethylene (PTFE), and olefinic oils are incompatible. High-energy radiation in the presence of oxygen can break PTFE chain, generating hydrophilic functional groups (COF, COOH) peroxy-radicals. Based on radicals, it is possible to establish a chemical bond between PA as well oil molecules. This study prepared PA-PTFE-oil-cb compounds (cb: chemically bonded) by reactive extrusion. The wetting behavior analyzed contact angle measurement. Additionally, sliding properties compound investigated micro friction testing against stainless steel. Due good fragmentation dispersion PA12 matrix, PA12-MP1100-cb PA12-MP1100-MO-cb show slight change compared virgin PA12. In contrast, based PA46 increases dramatically PA46. Moreover, due bonding, PA-PTFE-cb surface significantly smoother than physical blend used model compound. Similarly, PA66-matrix improved tribological PA46-based compounds. COF values for PA66 PA12-Z7321 0.69 0.55, respectively. comparison, PA66-MP1100-MO-cb (Z7321) have value 0.34 0.38,
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ژورنال
عنوان ژورنال: Journal of polymer science
سال: 2023
ISSN: ['1542-9385', '0098-1273']
DOI: https://doi.org/10.1002/pol.20230034