Environment-friendly polyurethane antibiosis adhesive and preparation method thereof
A polyurethane and antibacterial adhesive technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve problems such as few reports, and achieve the effects of improving antibacterial properties, broadening application fields, and superior bonding strength
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[0035] Example 1: Environmentally friendly polyurethane antibacterial adhesive, made from the following raw materials in parts by weight: 12 parts of hexamethylene diisocyanate, 1.3 parts of antibacterial zeolite, 1.3 parts of tetrahydrofuran-ethylene oxide copolymer glycol, and two parts of phthalic acid 12 parts of butyl ester, 0.15 parts of dibutyltin dilaurate, 1.25 parts of polyoxyethylene polyoxypropanolamine ether, 0.15 parts of p-toluenesulfonyl isocyanate, 0.15 parts of γ-glycidyl ether oxypropyl trimethoxysilane, three Glycol bis-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate] 0.2 parts.
[0036] The specific preparation steps are:
[0037] 1) Weigh tetrahydrofuran-ethylene oxide copolymer diol according to the weight ratio and put it into the reaction kettle, stir and heat to 80-100°C, vacuum and dehydrate for 3-4 hours;
[0038] 2) Add polyoxyethylene polyoxypropanolamine ether to the tetrahydrofuran-ethylene oxide copolymer glycol cooled to room temperature after ...
Example Embodiment
[0042] Example 2: Environmentally friendly polyurethane antibacterial adhesive, made from the following raw materials in parts by weight: 25 parts of hexamethylene diisocyanate, 3.6 parts of antibacterial zeolite, 3.5 parts of tetrahydrofuran-ethylene oxide copolymer glycol, and two parts of phthalic acid 8 parts of butyl ester, 0.11 parts of dibutyltin dilaurate, 0.6 parts of polyoxyethylene polyoxypropanolamine ether, 0.14 parts of p-toluenesulfonyl isocyanate, 0.18 parts of γ-glycidyl ether oxypropyl trimethoxysilane, 0.14 parts of triethylene glycol bis-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate].
[0043] The specific preparation steps are:
[0044] 1) Weigh tetrahydrofuran-ethylene oxide copolymer diol according to the weight ratio and put it into the reaction kettle, stir and heat to 80-100°C, vacuum and dehydrate for 3-4 hours;
[0045] 2) Add polyoxyethylene polyoxypropanolamine ether to the tetrahydrofuran-ethylene oxide copolymer glycol cooled to room temperatur...
Example Embodiment
[0049] Example 3: An environmentally friendly polyurethane antibacterial adhesive, made of the following parts by weight of raw materials: 18 parts of hexamethylene diisocyanate, 2.5 parts of antibacterial zeolite, 1.5 parts of tetrahydrofuran-ethylene oxide copolymer glycol, and ophthalene 8 parts of dibutyl formate, 0.12 parts of dibutyltin dilaurate, 1.6 parts of polyoxyethylene polyoxypropanolamine ether, 1.4 parts of p-toluenesulfonyl isocyanate, and 0.13 parts of γ-glycidyl ether oxypropyl trimethoxysilane Parts, 0.16 parts of triethylene glycol bis-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate].
[0050] The specific preparation steps are:
[0051] 1) Weigh tetrahydrofuran-ethylene oxide copolymer diol according to the weight ratio and put it into the reaction kettle, stir and heat to 80-100°C, vacuum and dehydrate for 3-4 hours;
[0052] 2) Add polyoxyethylene polyoxypropanolamine ether to the tetrahydrofuran-ethylene oxide copolymer glycol cooled to room temperature ...
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