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Investigation into the Thermal Stability of Fluoropolymer Coating for Heat-Resistant Application  

Cho, Hey-Jin (Department of Polymer Engineering, Chungnam National University, Reliability of Assessment Center, Korea Research Institute of Chemical Technology)
Ryu, Ju-Hwan (Department of Polymer Engineering, Chungnam National University)
Byun, Doo-Jin (Reliability of Assessment Center, Korea Research Institute of Chemical Technology)
Choi, Kil-Yeong (Reliability of Assessment Center, Korea Research Institute of Chemical Technology)
Publication Information
Polymer(Korea) / v.29, no.1, 2005 , pp. 96-101 More about this Journal
Abstract
Fluoropolymer of PTFE and PFA etc. is a heat resistance polymeric material that it is known as that maximum continuous use temperature reaches for 260 $^{\circ}C$. It was observed that these polymers had the enough thermal stability so enough that it was kept by thermal aging of 280 $^{\circ}C$/7 weeks too in this study. However, such thermal stability means that bulk material property is kept such as mechanical strength, melting point and initial pyrolysis temperature etc. If these polymers are evaluate by coating property such as surface contact angle, surface morphology, surface scratch, thing that heat resistance is not enough was confirmed in this study. Thermal aging of flouropolymer coating was achieved by gear aging oven that the exchange rate of air was controlled, and the analysis results were indicating serious damage of surface morphology and adhesive strength on metal substrate.
Keywords
thermal stability; fluoropolymer coating; interface adhesion;
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