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    Home > Coatings News > Paints and Coatings Market > Coating formula: formula of waterborne fluorine-containing polyurethane coating

    Coating formula: formula of waterborne fluorine-containing polyurethane coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: the water-based fluorine-containing polyurethane coating has high hardness, luster and contact angle with water after coating, so that it can be used in traditional application fields of conventional solvent based polyurethane coating, such as automobile, woodwork, industrial maintenance, plastic, wind turbine blade, solar energy battery and other high-performance technology fields

    The formula is water-borne fluorine-containing polyurethane coating, which is characterized in that the raw material composition and content are as follows: Bayhydur XP 2655 58 copies Waterborne hydroxyl fluoropolyurethane resin Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint

    In fact, there is no ugly color in the wall paint, only the disharmonious color matching

    The use of wall color contains the knowledge of health

    Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health

    Grasp the basic principles of wall color and paint a colorful space

    1、 Wall paint color selection notice 1

    Light color is generally used for the top surface

    Light colors make people feel light, dark colors make people feel heavy

    Usually, the treatment of rooms is from top to bottom, from shallow to deep

    For example, the ceiling and walls of rooms are white and Home of coatings: the water-based fluorine-containing polyurethane coating has high hardness, luster and contact angle with water after coating, so it can be used in traditional application fields of conventional solvent based polyurethane coating, such as automobile, woodwork, industrial maintenance, plastics, wind turbine blades, solar cells and other high-performance technology fields

    The formula is characterized in that the composition and content of raw materials are as follows: bayhydur XP 2655 5 ‑ 8 parts of water-based hydroxyl fluoropolyurethane resin 60 ‑ 70 parts of leveling agent 0.05 ‑ 0.1 part of wetting agent 1 ‑ 10 parts of thickening agent 1 ‑ 3 parts of defoamer 0.2 ‑ 1 part of film forming agent 2 ‑ 5 parts of catalyst a 0.02 ‑ 1.0 parts of deionized water 20 ‑ 40 parts Among them, bayhydur XP 2655 is a hydrophilic modified aliphatic polyisocyanate curing agent of Bayer company in Germany; leveling agent is BYK 346 of BYK company; wetting agent is NP ‑ 100 of Dow company in the United States; thickener is RM 825 of Rohm á S Co., Ltd.; defoamer is NOPCO NXZ of Henkel company in Germany; The film forming assistant is dipropylene glycol butyl ether of Dow Chemical Company of the United States; catalyst a is a mixture of dibutyltin dilaurate, stannous caproate or dibutyltin dilaurate and stannous caproate; the composition and content of the raw materials of waterborne hydroxyl fluorine-containing polyurethane resin are calculated by weight parts as follows: polyether diol n 220 40 ‑ 60 parts polycarbonate glycol 40 ‑ 80 parts F-diisocyanate 30 ‑ 40 parts chain extender 0.2 ‑ 5.0 parts neutralizer 1 ‑ 10 parts catalyst B 0.02 ‑ 1.0 parts diluent 40 ‑ 60 parts The average molecular weight of polycarbonate glycol is 2000g / mol; the chain extender is dihydroxymethylpropionic acid; the catalyst B is a mixture of dibutyltin dilaurate, stannous caproate or dibutyltin dilaurate and stannous caproate; the neutralizer is a mixture of triethylamine, sodium hydroxide or triethylamine and sodium hydroxide; the diluent is acetone or butanone; the fluorine-containing diisocyanate is based on weight The composition and content of the catalyst are as follows: 60 ‑ 80 parts of trimethylolpropane, 100 ‑ 120 parts of isophorone diisocyanate, 20 ‑ 40 parts of pentafluoropropanol, C 0.02 ‑ 1.0 parts of catalyst C are dibutyltin dilaurate, stannous caproate or a mixture of dibutyltin dilaurate and stannous caproate; catalyst a, catalyst B and catalyst C are the same or different

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