Flame-retardant polyurethane hot melt adhesive with excellent water resistance and preparation method of hot melt adhesive
A technology of polyurethane hot-melt adhesive and flame-retardant polyether, which is applied in the field of structural adhesives, can solve the problems of reducing the waterproof performance and chemical resistance of polyurethane hot-melt adhesive coatings, improve compatibility and solve solvent resistance. Performance, the effect of not easy to bubble
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[0027] Example one
[0028] It is a flame-retardant polyurethane hot melt adhesive with excellent waterproof performance, which is prepared by the following steps:
[0029] Step 1: Synthesis of hydroxy-terminated phosphorus-containing flame-retardant polyacrylic acid fluorinated copolymer
[0030] Mix 6 parts of trifluoroethyl acrylate TFMA, 15 parts of methyl methacrylate MMA, 25 parts of methoxyethyl methacrylate MMA, and 10 parts of 2-methyl-2-acrylic acid-2-hydroxyethyl The base ester phosphate HMP was dissolved in 50 parts of toluene, controlled at 60°C, under the protection of nitrogen, 2.8 parts of thermal initiator 4,4'-azobis(4-cyanopentanol) was added, and the polymerization reaction was 8 After hours, the toluene is removed by rotary evaporation, and the hydroxyl-terminated phosphorus-containing flame-retardant polyacrylic fluorinated copolymer is obtained. The hydroxyl-terminated phosphorus-containing flame-retardant polyacrylic fluorinated copolymer contains an average ...
Example Embodiment
[0033] Example two
[0034] It is a flame-retardant polyurethane hot melt adhesive with excellent waterproof performance, which is prepared by the following steps:
[0035] Step 1: Synthesis of hydroxy-terminated phosphorus-containing flame-retardant polyacrylic acid fluorinated copolymer
[0036] Combine 12 parts of trifluoroethyl acrylate TFMA, 15 parts of methyl methacrylate MMA, 20 parts of methoxyethyl methacrylate MMA, and 15 parts of 2-methyl-2-acrylic acid-2-hydroxyethyl The base ester phosphate HMP is dissolved in 80 parts of toluene, controlled at 65°C, and under the protection of nitrogen, 1.3 parts of thermal initiator 4,4'-azobis(4-cyanopentanol) are added, and the polymerization reaction is 10 After hours, the toluene was removed by rotary evaporation to obtain a hydroxy-terminated phosphorus-containing flame-retardant polyacrylic fluorinated copolymer. The hydroxyl-terminated phosphorus-containing flame-retardant polyacrylic fluorinated copolymer contains an average o...
Example Embodiment
[0039] Example three
[0040] It is a flame-retardant polyurethane hot melt adhesive with excellent waterproof performance, which is prepared by the following steps:
[0041] Step 1: Synthesis of hydroxy-terminated phosphorus-containing flame-retardant polyacrylic acid fluorinated copolymer
[0042] 16 parts of trifluoroethyl acrylate TFMA, 27 parts of methyl methacrylate MMA, 17 parts of methoxyethyl methacrylate MMA, and 22 parts of 2-methyl-2-acrylic acid-2-hydroxyethyl Base ester phosphate HMP is dissolved in 90 parts of toluene, controlled at 75°C, and under the protection of nitrogen, 0.6 parts of thermal initiator 4,4'-azobis(4-cyanopentanol) is added, and the polymerization reaction is 14 After hours, the toluene is removed by rotary evaporation, and the hydroxyl-terminated phosphorus-containing flame-retardant polyacrylic fluorinated copolymer is obtained. The hydroxyl-terminated phosphorus-containing flame-retardant polyacrylic fluorinated copolymer contains an average of ...
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