Polyetheramine-modified waterborne alkyd resin and preparation method thereof
A technology of water-based alkyd resin and polyether amine, which is applied in polyester coatings, coatings, anti-corrosion coatings, etc., can solve the problems of hardness, impact resistance, poor outdoor weather resistance, etc., and achieve good flexibility, good fullness, and good The effect of water resistance
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[0022] Example 1
[0023] A polyetheramine modified waterborne alkyd resin, based on parts by weight, composed of the following formula: 30.0 parts of soybean oil, 8.0 parts of polyetheramine, 30.0 parts of hexahydrophthalic anhydride, 15.0 parts of neopentyl glycol, and trimethylol 35.0 parts of propane, 18.0 parts of xylene, 4.0 parts of n-octanoic acid, 5.0 parts of dimethylolpropionic acid, 0.7 parts of sodium bicarbonate, 9.0 parts of triethylamine, 0.2 parts of dibutyltin dilaurate, and 150.0 parts of deionized water.
[0024] The preparation method of polyetheramine modified waterborne alkyd resin in this embodiment includes the following steps:
[0025] a) In the multifunctional reactor, add soybean oil, neopentyl glycol, trimethylolpropane, hexahydrophthalic anhydride, dimethylolpropionic acid and xylene in sequence according to the weight of the formula, and pass in under low-speed stirring N 2 , To remove the O in the reactor 2 ;
[0026] b) Heat up to 120℃, keep for 1.5h,...
Example Embodiment
[0028] Example 2
[0029] A polyetheramine modified waterborne alkyd resin, based on parts by weight, composed of the following formula: 20.0 parts of palm oil, 6.0 parts of polyetheramine, 20.0 parts of maleic anhydride, 20.0 parts of hexahydrophthalic anhydride, and diethylene glycol 25.0 parts of alcohol, 23.0 parts of pentaerythritol, 15.0 parts of xylene, 3.5 parts of n-octanoic acid, 5.2 parts of dimethylolpropionic acid, 0.6 parts of sodium bicarbonate, 6.5 parts of ammonia, 0.2 parts of dibutyltin dilaurate, 140.0 parts of deionized water .
[0030] The preparation method of polyetheramine modified waterborne alkyd resin in this embodiment includes the following steps:
[0031] a) In the multifunctional reactor, add palm oil, diethylene glycol, pentaerythritol, maleic anhydride, hexahydrophthalic anhydride, dimethylolpropionic acid and xylene in sequence according to the weight of the formula, stirring at low speed Access N 2 , To remove the O in the reactor 2 ;
[0032] b) ...
Example Embodiment
[0034] Example 3
[0035] A polyetheramine modified water-based alkyd resin, based on parts by weight, composed of the following formula: 25.0 parts of castor oil, 8.0 parts of polyetheramine, 25.0 parts of hexahydrophthalic anhydride, 12.0 parts of acetic anhydride, and 45.0 parts of trimethylolpropane Parts, xylene 15.0 parts, n-octanoic acid 5.0 parts, dimethylolpropionic acid 5.5 parts, sodium bicarbonate 0.6 parts, triethylamine 9.0 parts, dibutyltin dilaurate 0.2 parts, and deionized water 140.0 parts.
[0036] The preparation method of polyetheramine modified waterborne alkyd resin in this embodiment includes the following steps:
[0037] a) In the multifunctional reactor, add castor oil, trimethylolpropane, hexahydrophthalic anhydride, acetic anhydride, dimethylolpropionic acid and xylene in sequence according to the weight of the formula, and pass in N under low-speed stirring. 2 , To remove the O in the reactor 2 ;
[0038] b) Heat up to 110°C, hold for 1.5h, remove free wat...
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