Spray coating type fire-retardant antistatic polyurethane elastomer and preparation method thereof
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A polyurethane elastomer, flame retardant and antistatic technology, used in polyurea/polyurethane coatings, coatings, fire retardant coatings, etc. problems, to achieve the effect of reducing the dosage, stabilizing the film-forming material, and avoiding the later precipitation
Active Publication Date: 2014-04-09
QINGDAO ADVANCED MARINE MATERIAL TECH
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Problems solved by technology
The introduction of a large number of additive flame retardants or antistatic agents leads to an increase in the viscosity of the material and a decrease in physical properties after curing
With the extension of time, the escape of additive additives and phase separation from the resin components lead to a downward trend in the flame retardancy and antistatic properties of the material
[0007] At the same time, there are no reports on spray polyurethane materials with flame retardancy and antistatic properties
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Embodiment 1
[0028] The flame retardant antistatic spray polyurethane coating formula of this implementation case is as follows:
[0040] Add 50 parts of phosphorus-containing flame-retardant polyol XP-1505 into the reactor, heat to 110°C and vacuumize for 3 hours, add 50 parts of MDI-50 after cooling to 30°C, and heat to 105°C for 3 hours to obtain semi-prepolymerized Material A component.
[0041] Add component B to the mixing tank one by one and stir evenly, then enter the sand mill and grind for 2.5 hours. Prepare the B component.
[0058] Add 55 parts of flame-retardant polyether polyol XP-1505 into the reaction kettle, heat to 110°C for 3 hours, then add 30 parts of isocyanate MDI-50, 15 parts of carbodiimide liquefied MDI, and react at 105°C for 3 hours to obtain Semi-prepolymer A component.
[0059] Add component B to the mixing tank in turn and stir evenly, enter into a sand mill and grind for 2.5 hours to obtain component B.
[0060] Components A and B are sprayed with a high-pressure sprayer, and the two comp...
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Abstract
The invention discloses a spray coating type fire-retardant antistatic polyurethane elastomer and a preparation method thereof. The spray coating type fire-retardant antistatic polyurethane elastomer comprises an A component and a B component, wherein the A component is composed of 40-60 parts of isocyanate and 40-60 parts of phosphorus-containing flame-retardant polyol, and the B component is composed of 0-30 parts of chain extender, 0-30 parts of polyether polyol, 10-75 parts of amine-terminated polyether, 0-30 parts of carbon nanotube slurry, 0-3 parts of pigment and 0-3 parts of assistant. The preparation method comprises the following steps: adding the phosphorus-containing flame-retardant polyol into a reaction kettle, heating up to 110 DEG C, vacuumizing for 3 hours, cooling to 30 DEG C, adding the isocyanate, heating up to 105 DEG C, and reacting for 3 hours to obtain a semi-prepolymer A component; sequentially adding the ingredients of the B component into a stirring tank, stirring uniformly, and grinding the mixture in a sand mill for 2.5 hours to prepare the B component; spray-coating the A component and the B component onto a surface through a high pressure spray coating machine, and quickly curing to form. According to the spray coating type fire-retardant antistatic polyurethane elastomer disclosed by the invention, film forming matters are stable, no fire retardant is separated out and the durability is good; a spray coating type fire-retardant antistatic material prepared by the preparation method disclosed by the invention has both fire resistance and anti-static function, so that the material is suitable for application on flame-retardant and explosion-proof occasions.
Description
technical field [0001] The invention relates to a spray-coating flame-retardant and antistatic polyurethane elastomer and a preparation method thereof, belonging to the field of coating compositions. Background technique [0002] Due to its wide hardness range, good mechanical properties, and superior wear resistance, polyurethane elastomers have been more and more used in mines, chemicals, docks and other fields in recent years for wear resistance. Equipment wear and corrosion in the mining industry has always been an important problem plaguing the industry. The excellent properties of cast polyurethane materials, such as high wear resistance, high strength, high resilience, and medium resistance, have been widely used in the mining industry. However, the traditional pouring polyurethane uses RIM equipment and mold casting, which requires a large investment in the processing of large parts and serious waste of energy consumption. Germany and the United States are the ...
Claims
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Application Information
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