Abstract:
PROBLEM TO BE SOLVED: To provide a fluorine-containing curable resin that gives excellent antifouling nature to the surface of a cured coating film and a fluorine-containing curable resin that can be used as a fluorine-based surfactant, and further to provide an active energy ray-curable composition for coating that can prevent the fluorine-based surfactant or a decomposition product thereof from vaporizing or coming off from the surface of the coating film after coating and curing and can improve stability of surface characteristics such as antifouling nature; and to provide a cured product thereof. SOLUTION: The fluorine-containing curable resin includes a chain of poly(perfluoroalkylene ether), a radical-polymerizable unsaturated group and a functional group capable of initiating photopolymerization in the resin structure. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a coating layer free from a defect which is caused on a PFA-based composite coating surface.SOLUTION: A power mixture including a plurality of fluoroplastic powders, a plurality of aerogel particles and a fluorine-based surfactant is prepared, and the powder mixture is applied onto a material surface and hardened. The plurality of aerogel particles is flattened by a leveling agent during hardening and dispersed into the coating layer.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing antifouling substrate having a film formed using a fluorine-containing hydrolyzable silane compound in which storage stability of a film forming composition to be used is favorable and an obtained film has an excellent antifouling performance.SOLUTION: The method for manufacturing antifouling substrate having the film formed using the fluorine-containing hydrolyzable silane compound on a substrate includes steps of: manufacturing the film forming composition which contains the fluorine-containing hydrolyzable silane compound but does not substantially contain a hydrolysis reaction catalyst; depositing the film forming composition on the substrate or drying it after wet coating to obtain a precursor film; and forming the film by surface treatment of the precursor film by a treatment liquid containing the hydrolysis reaction catalyst.
Abstract:
PROBLEM TO BE SOLVED: To provide a pre-coat fin material for a heat exchanger, along with a heat exchanger with a fin structure, which has the fin structure in which frost formation can be prevented as much as possible during heating operation, the droplet of condensed water can be contacted to a hydrophilic coat to quickly exclude the droplet under the condition where a fin surface is easy to cause dew condensation, and a proper heat exchange function can be continued with no increase in ventilation resistance.SOLUTION: This precoated fin material for heat exchanger includes a fin substrate formed from an aluminum plate material, a bridge water-repellent coat having a frost-formation suppressing effect which is formed from an aqueous water-repellent paint composition containing resin (A) containing fluorine atom containing radical, quaternary ammonium base containing modified epoxy resin (B), and amino resin (C) at a predetermined ratio, to be provided on one surface of the fin substrate, and a hydrophilic coat which is provided on the other surface of the fin substrate and has a condensed water exclusion effect, and also includes a fin structure in which a water-repellent having a frost deformation suppressing effect and a hydrophilic surface having a condensed water exclusion effect face each other.