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- Title
Dual layer structural thermoplastic polyester powder coating film and its weathering resistance.
- Authors
Takeshita, Yukitoshi; Kamisho, Takuya; Sakata, Seizo; Sawada, Takashi; Watanuki, Yoshikazu; Nishio, Ryuichi; Ueda, Toshinobu
- Abstract
Micro FTIR analysis was performed to the point with a 50-80 μm spatial resolution to verify the exact structure of a new blend thermoplastic powder coating film. Resistance to certain artificially accelerated conditions and actual outdoor exposure were examined to confirm the performance of the film as a protective coating for use in the telecommunication field. The new blend powder coating film consists of primary polyethylene terephthalate (PET) and secondary polyvinyl butyral (PVB) resins, and has a distinct dual phase structure. Specifically, it forms a continuous PVB phase in a surface layer with a thickness of approximately 100-150 μm. Good corrosion resistance was confirmed in artificially accelerated testing using salt water spray, heat cycle, and accelerated UV tests. Actual outdoor exposure in a metropolitan area (Shinkiba in Tokyo) and a coastal area (Miyake Island) revealed good weathering performance throughout the study period. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
- Subjects
THERMOPLASTICS; POLYESTERS; MOLECULAR structure; PLASTIC powders; COATING processes; POLYMER films; CHEMICAL weathering; STRENGTH of materials
- Publication
Journal of Applied Polymer Science, 2013, Vol 128, Issue 3, p1732
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.38299