A Study on the Factors for Improvement of Chemical and Physical Properties in Fluoric Rubber Coating for Use of the Extremely Acidic Environments

Hyun Young Chang; Tae Eun Jin; Il Soo So; Byung Seung Lee; Min Soo Kang

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자료유형: 학술저널

저자정보: Hyun Young Chang Tae Eun Jin Il Soo So Byung Seung Lee Min Soo Kang

저널정보: 한국부식방식학회 Corrosion Science and Technology Corrosion Science and Technology 제7권 제5호

발행연도: 2008.1

수록면: 269 - 273 (5page)

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It is known that the fluoric resin has the most outstanding properties in the extremely acidic environment of high temperature. However, this resin is the thermal hardening type that needs long time heat treatments above 250°C. It's impossible to use in situ in the extremely acidic environment such as a huge FGD ductworks or industrial chemical tanks. Furthermore, even the natural hardening type fluoric coatings which can be hardened less than 120°C can not be applied to the highly acidic environmental plants because of its chemical resistance. In this study, new fluoric coatings that has excellent thermal resistance, chemical resistance and corrosion resistance has been developed in order to solve above problems and to be applied to the large plant structures in the field. These newly developed coatings are organic and inorganic composite type that have fluoric rubber(100 wt%), fluoric resin(5~50 wt%), oxalates(5~30 wt%), inorganic fillers mixed with plate-type and bulk-type solids(20~150 wt%), hardeners(0.5~5 wt%), and hardening hasteners(0.1~3 wt%). The best chemical and physical properties of these coatings are acquired by variation of adhesive reinforcement agents, dispersants, leveling agents. Mixing ratios of plate-type and bulk-type inorganic fillers influence the thermal properties, abrasive resistance and chemical infiltration properties of coatings. The mixing control is also very important to have homogeneous surface and removing inner voids of coatings.

#fluoric rubber #coatings #FGD duct

참고문헌 (6)

참고문헌 신청

/ 2001 / ASTM D4060, Standard test method for abrasion resistance of organic coatings by the Taber Abraser, ASTM

/ 2003 / ASTM D638, Standard test method for tensile strength of plastics, ASTM

Khairi Nagdi / 2000 / Rubber as an Engineering Materials / HANSER : 130 ~

L. A. Wall / 1972 / Fluoropolymers high polymer / Wiley-Interscience 25

Marcel Dekkeer / / Handbook of Elastomers : 547 ~

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