Stain-resistant and weather-resistant polyurethane acrylate coating material and preparation method thereof
A urethane acrylate and weather resistance technology, which is applied in the field of urethane acrylate, can solve the problems that UV-curable coatings need to be further improved, and achieve the effects of improving weather resistance, maintaining stain resistance, and improving stain resistance
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Embodiment 1
[0022] A stain-resistant, weather-resistant polyurethane acrylate paint, comprising the following raw materials in parts by weight:
[0023] 50 parts of polyurethane acrylate, 40 parts of pentaerythritol triacrylate, 15 parts of nano-SiO2 with an average particle size of about 30 nm, 3 parts of 1-hydroxycyclohexyl phenyl ketone and 8 parts of nano-titanium dioxide with an average particle size of about 20 nm.
[0024] A kind of preparation method of described dirt-resistant, weather-resistant polyurethane acrylate paint, comprises the steps:
[0025] (1) Add urethane acrylate and pentaerythritol triacrylate in the reaction vessel and stir to obtain the first mixture;
[0026] (2) Slowly add nano-SiO2 and 1-hydroxycyclohexyl phenyl ketone to the first mixture under stirring, heat to 50° C., and stir for 20 minutes to obtain a second mixture;
[0027] (3) filtering the second mixture with a 300-mesh filter cloth to obtain the first filtrate;
[0028] (4) Slowly add nano-titani...
Embodiment 2
[0031] A stain-resistant, weather-resistant polyurethane acrylate paint, comprising the following raw materials in parts by weight:
[0032] 40 parts of polyurethane acrylate, 30 parts of a mixture of trimethylolpropane tetraacrylate and propoxylated multifunctional acrylate, 10 parts of nano-SiO2 with a particle size of about 10nm, 2,4,6-trimethyl 1 part of ethyl benzoyl phenyl phosphonate and methyl benzoyl formate mixture and 5 parts of nano titanium dioxide with a particle size of about 1 nm.
[0033] A kind of preparation method of described dirt-resistant, weather-resistant polyurethane acrylate paint, comprises the steps:
[0034] (1) Add a mixture of urethane acrylate, trimethylolpropane tetraacrylate and propoxylated polyfunctional acrylate in the reaction vessel and stir to obtain the first mixture;
[0035] (2) Slowly add nano-SiO2, ethyl 2,4,6-trimethylbenzoylphenylphosphonate and methyl benzoylformate mixture to the first mixture under stirring, and heat to 40°C ...
Embodiment 3
[0039] A stain-resistant, weather-resistant polyurethane acrylate paint, comprising the following raw materials in parts by weight:
[0040] 60 parts of polyurethane acrylate, 50 parts of a mixture of pentaerythritol tetraacrylate and trimethylolpropane tetraacrylate, 20 parts of nano-SiO2 with a particle size of about 50nm, 2-methyl-2-(4-morpholinyl) -5 parts of 1-[4-(methylthio)phenyl]-1-propanone and ethyl 2,4,6-trimethylbenzoylphenylphosphonate and 10 parts of nano-titanium dioxide with a particle size of about 30nm share.
[0041] A kind of preparation method of described dirt-resistant, weather-resistant polyurethane acrylate paint, comprises the steps:
[0042] (1) Add urethane acrylate, pentaerythritol tetraacrylate and trimethylolpropane tetraacrylate mixture in the reaction vessel and stir to obtain the first mixture;
[0043] (2) Slowly add nano-SiO2, 2-methyl-2-(4-morpholinyl)-1-[4-(methylthio)phenyl]-1- A mixture of acetone and ethyl 2,4,6-trimethylbenzoylpheny...
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Abstract
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