Acid-modified melamine resin for UV (ultraviolet) paint and preparation method thereof
A technology of melamine and acid modification, applied in the direction of coating, etc., can solve the problem that UV resin is difficult to meet the requirements, and achieve the effect of improving high wear resistance
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Embodiment 1
[0019] Example 1: Add 30g of melamine and 20g of xylene into a three-necked flask equipped with a stirrer and a thermometer, stir to dissolve the melamine completely, add 100g of epichlorohydrin, heat up to 40°C and stir for 2 hours, add 150g of acrylic acid, 0.25 g p-hydroxyanisole, 0.5 g triethylamine, heat up to 90°C for 1 hour, then heat up to 110°C for 4 hours, discharge after passing the test to obtain the product.
Embodiment 2
[0020] Example 2: Add 30g of melamine and 25g of xylene into a three-necked flask equipped with a stirrer and a thermometer, stir to dissolve the melamine completely, add 100g of epichlorohydrin, heat up to 60°C and stir for 1 hour, add 200g of acrylic acid, 0.05 g p-hydroxyanisole, 5 g triethylamine, heat up to 70°C for 1 hour, then heat up to 120°C for 4 hours, discharge after passing the test to obtain the product.
Embodiment 3
[0021] Example 3: Add 30 g of melamine and 10 g of toluene into a three-neck flask equipped with a stirrer and a thermometer, stir to completely dissolve the melamine, add 200 g of epichlorohydrin, heat up to 60 ° C and stir for 1 hour, add 250 g of acrylic acid, 5 g of Hydroxyanisole, 5g triethylamine, heated up to 70°C for 1 hour, then heated up to 120°C for 4 hours, discharged after passing the test, to obtain the product.
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Abstract
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