Fireproof and explosion-proof coating
A technology of coatings and parts by weight, which is applied in the direction of fireproof coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of restricting the application of prefabricated houses, inconvenient handling, and heavy foamed cement composite boards, etc., to achieve good Fire resistance and freeze-thaw cycle resistance, long service life, good flame retardant and anti-explosion performance
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preparation example 1
[0023] After stirring 100g of isophorone diisocyanate and 30g of polypropylene glycol at 30°C for 1 hour, add 15g of amino-terminated polyether D2000 and 0.1g of isopropanol, and react at 30°C for 0.75 hours to obtain polyurea prepolymer.
preparation example 2
[0025] After stirring 100g of isophorone diisocyanate and 35g of polypropylene glycol at 35°C for 0.5 hours, add 12g of amino-terminated polyether D3500 and 0.5g of isopropanol, and keep warm at 35°C for 0.5 hours to obtain polyurea prepolymer.
preparation example 3
[0027] After stirring 100g of isophorone diisocyanate and 40g of polypropylene glycol at 32°C for 0.75 hours, add 10g of amino-terminated polyether D5000 and 0.3g of isopropanol, and keep warm at 32°C for 1 hour to obtain polyurea prepolymer.
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