High-tension water-based paint suitable for surface of steel structure and preparation method thereof
A high-tension, water-based paint technology, used in coatings, polyester coatings, etc., can solve the problems of low paint film hardness, poor water resistance and weather resistance, and achieve high hardness, good scratch resistance, and strong adhesion.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0056] The invention also discloses a method for preparing a high-tension water-based paint suitable for the surface of a steel structure, comprising the following steps:
[0057] In parts by weight, 40-55 parts of styrene-acrylic emulsion modified water-based alkyd resin, 5-11 parts of co-solvent, 0.3-0.8 parts of film-forming aid, 0.2-0.6 parts of dispersant and 15-25 parts of deionized water Mix and stir, grind until the fineness is less than 20 μm, add 1 to 3 parts of coupling agent and mix evenly to obtain a high-tension water-based paint suitable for the surface of steel structures;
[0058] The styrene-acrylic emulsion modified water-based alkyd resin is prepared according to the following steps:
[0059] (1) In parts by weight, 1-3 parts of polyoxyethylene octylphenol ether-10, 0.2-0.5 parts of Tween 80, 0.5-1.5 parts of dodecyl dimethyl betaine and 25-40 parts of deionized water Add it into the reaction kettle, stir and disperse to dissolve it, and obtain an emulsifi...
Embodiment 1
[0069] A styrene-acrylic emulsion modified water-based alkyd resin is prepared according to the following steps:
[0070] (1) Add 1kg of polyoxyethylene octylphenol ether-10, 0.2kg of Tween 80, 0.5kg of dodecyl dimethyl betaine and 25kg of deionized water into the reactor, stir and disperse to dissolve, and obtain emulsifier buffer liquid, refrigerated for later use;
[0071] (2) 1 / 4 of the emulsifier buffer solution obtained in step (1) is added to the reaction vessel, 6 kg of styrene and 4 kg of butyl acrylate are added under stirring, and stirring and dissolving are prepared to obtain a nuclear monomer pre-emulsion;
[0072] Mix 1 / 2 of the nuclear monomer pre-emulsion with 0.03kg ammonium persulfate, stir and mix quickly for 30 minutes, raise the temperature to 65°C, add the remaining nuclear monomer pre-emulsion and 0.06kg ammonium persulfate, at this temperature Down reaction 2 hours, obtain nuclear emulsion, standby;
[0073] (3) 3 / 4 of the emulsifier buffer solution o...
Embodiment 2
[0078] A styrene-acrylic emulsion modified water-based alkyd resin is prepared according to the following steps:
[0079] (1) Add 3kg of polyoxyethylene octylphenol ether-10, 0.5kg of Tween 80, 1.5kg of dodecyl dimethyl betaine and 40kg of deionized water into the reactor, stir and disperse to dissolve, and obtain emulsifier buffer liquid, refrigerated for later use;
[0080] (2) 1 / 4 of the emulsifier buffer obtained in step (1) is added to the reaction vessel, 8 kg of styrene and 8 kg of butyl acrylate are added under stirring, and stirring and dissolving are prepared to obtain a nuclear monomer pre-emulsion;
[0081] Mix 1 / 2 of the nuclear monomer pre-emulsion with 0.05kg of ammonium persulfate, stir and mix quickly for 45 minutes, raise the temperature to 75°C, add the remaining nuclear monomer pre-emulsion and 0.03kg of ammonium persulfate, at this temperature Down reaction 1 hour, obtain nuclear emulsion, standby;
[0082] (3) Take 3 / 4 of the emulsifier buffer solution ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More