Epoxy acrylate modified waterborne alkyd resin and preparation method and application thereof
A technology of water-based alkyd resin and epoxy acrylate, which is applied in coatings, anti-corrosion coatings, etc., can solve problems such as coating film performance, and achieve the effects of improving water resistance, good dryness, and good weather resistance
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Embodiment 1
[0041] Add 50.05g of linseed oil and 10.94g of glycerol into a four-necked flask equipped with a stirrer, thermometer and water separator, heat to 120°C with an electric heating mantle, add 0.1g of alcoholysis catalyst LiOH, continue to heat up to 240°C, and keep the reaction After the tolerance of ethanol reaches 5ml / ml, cool down to 180°C; add 29.5g of phthalic anhydride, 0.82g of maleic anhydride, 3.86g of diethylene glycol and reflux 3g of xylene to the flask and keep warm at 180°C until the acid The value reaches 20mg KOH / g; cool down to 200°C, add 7.35g of epoxy resin E44 to continue the reaction until the acid value is lower than 10mg KOH / g; cool down to 120°C, add 15g of n-butanol, add 3.03g dropwise within 2 hours at a constant speed Styrene, a mixture of 6.05g methyl methacrylate, 7.42g methacrylic acid, 3.03g butyl acrylate, and 0.8g initiator. The dropping rate is 0.17g / min. Add 0.18g of the remaining initiator directly to the head dropper at one time, and continue...
Embodiment 2
[0049] Add 50.05g of tung oil and 11g of glycerin into a four-necked flask equipped with a stirrer, a thermometer and a water separator, heat it to 120°C with an electric heating mantle, add 0.1g of alcoholysis catalyst LiOH, continue to heat up to 240°C, and keep the reaction to ethanol After the tolerance reaches 2.7ml / ml, cool down to 180°C; add 29.8g of phthalic anhydride, 0.46g of maleic anhydride, 4.0g of diethylene glycol and reflux 5g of xylene to the flask and keep the reaction at 180°C until the acid value up to 40mg KOH / g; cool down to 200°C, add 7.36g epoxy resin E44 to continue the reaction until the acid value is lower than 10mg KOH / g; cool down to 120°C, add 15g n-butanol, add 3.57g benzene dropwise within 2 hours at a constant speed A mixture of ethylene, 7.15g methyl methacrylate, 5.22g methacrylic acid, 3.57g butyl acrylate, and 0.9g initiator, with a dropping rate of 0.17g / min. Add 0.25g of the remaining initiator directly to the dropper at one time, and kee...
Embodiment 3
[0052]Put 68.6g of soybean oil and 15g of glycerin into a four-neck flask equipped with a stirrer, thermometer and water separator, heat it to 120°C with an electric heating mantle, add 0.1g of alcoholysis catalyst LiOH, continue to heat up to 240°C, and keep the reaction until the ethanol After the tolerance reaches 5ml / ml, cool down to 180°C; add 40.86g of phthalic anhydride, 0.61g of maleic anhydride, 5.3g of diethylene glycol and reflux 3g of xylene to the flask and keep the reaction at 180°C until the acid value reaches 20mg KOH / g; cool down to 200°C, add 10.3g epoxy resin E20 to continue the reaction until the acid value is lower than 10mg KOH / g; cool down to 120°C, add 15g n-butanol, add 3.7g styrene dropwise within 2 hours at a constant speed , a mixture of 7.3g methyl methacrylate, 16.2g methacrylic acid, 3.7g butyl acrylate, and 1.6g initiator. The dropping rate is 0.17g / min. Add 0.18g of remaining initiator directly to the tube at one time, keep warm until the total...
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