FIELD: process engineering.;SUBSTANCE: invention relates to making isolation surface coatings on backing and may be used for coating griddles, refractory crockery, chemical reactor components, etc, that is where high chemical, thermal resistance and electrical insulation are required. Proposed method comprises applying ground layer powder on backing. Then, outer layer powder is applied on ground layer. After application of ground and outer layer powders, backing is annealed. Ground layer powder comprises copolymer of tetrafluoroethylene/perfluoroethylene and unfusible binder. Outer finishing later powder comprises copolymer of tetrafluoroethylene/perfluoroalkylvinyl ester. Infusible binder comprises polybenzimidazole, liquid-crystal polymer or whatever combination thereof. Additionally, ground powder comprises fusible binder including polyestersulfon, polyphenylsulphide, poly arylene ether ketones, or whatever combinations thereof.;EFFECT: high thermal resistance, wear resistance and isolation properties.;19 cl, 2 tbl, 2 ex
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机译:技术领域本发明涉及在背衬上制造隔离表面涂层,并且可以用于涂覆板烤炉,耐火陶器,化学反应器部件等,这是要求高化学,耐热性和电绝缘性的地方。提出的方法包括将底层粉末施加在背衬上。然后,将外层粉末施加到底层上。施加地面和外层粉末后,对背衬进行退火。底层粉末包含四氟乙烯/全氟乙烯和不熔粘合剂的共聚物。后整理外层粉末包含四氟乙烯/全氟烷基乙烯基酯的共聚物。难熔粘合剂包括聚苯并咪唑,液晶聚合物或其任何组合。此外,研磨粉还包含易熔粘合剂,包括聚酯砜,聚苯硫醚,聚亚芳基醚酮或它们的任意组合。效果:高耐热性,耐磨性和隔离性。19cl,2 tbl,2 ex
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