Anticorrosive flame-retardant paint
A technology for flame retardant coatings and paint boxes, applied in anti-corrosion coatings, fire-resistant coatings, polyurea/polyurethane coatings, etc., can solve the problems of complex mechanical devices, manual operation, inconvenient operation, etc., to avoid deposition, paint uniformity, and paint effect. perfect effect
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preparation example Construction
[0031] Such as Figure 1 to Figure 6 Shown, a kind of anticorrosion flame retardant coating of the present invention, this anticorrosion flame retardant coating preparation method comprises the following steps:
[0032] S1: Vacuum dehydrate the polyether polyol at 100-110°C for 0.5-2 hours, cool down to below 50°C, add aliphatic or alicyclic diisocyanate according to the molar ratio of functional groups -NCO / -OH=2-5 , react at 70-80°C for 1-2 hours, then add dimethylolpropionic acid and low molecular polyol chain extender, the above raw materials are carried out in the presence of a catalyst according to the molar ratio of functional groups -NCO / -OH=1.1-1.5 Reaction, the reaction temperature is 70-80°C, the reaction time is 2-4 hours. During the reaction, the viscosity of the reactant is controlled below 4000mPa.s by adding acetone, and the terminal group is mainly isocyanate group, and the carboxyl content is 0.7-2.0. % polyurethane prepolymer;
[0033] S2: Cool down the po...
Embodiment approach
[0041] As an embodiment of the present invention, the inflation pipe is located at the bottom opening of the paint tank 4, and the air inlet pipe 61 and the discharge hole 52 are fixedly connected with a one-way nozzle 7; the one-way nozzle 7 is made of rubber material; When working, when the auxiliary plate 45 squeezes the extrusion bag 6, the gas volume in the extrusion bag 6 presses the one-way nozzle 7, so that the one-way nozzle 7 is opened, and the gas enters the paint tank 4 to pressurize and stir the paint. When the auxiliary plate 45 moves in the reverse direction, due to the limitation of the structure of the one-way nozzle 7, the one-way nozzle 7 cannot be opened in the reverse direction. When the extrusion bag 6 is restored to deformation, the gas is replenished through the intake pipe 61, and the paint in the paint box 4 cannot enter. In the inflatable tube, at the same time, when the second cavity 51 is pressurized, the paint can pass through the discharge hole 52...
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