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A kind of preparation method of e-10p modified acrylic resin that can reduce resin color
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An acrylic resin and modification technology, applied in the field of preparation of E-10P modified acrylic resin, can solve the problems of solid content, viscosity and other properties that cannot meet the ideal requirements for use, cannot meet the requirements for use, and limit the scope of application, etc. The effect of reducing the color and luster, meeting the requirements of use, and shortening the reaction time
Active Publication Date: 2021-06-22
泰兴盛嘉树脂有限公司
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Problems solved by technology
Although the E-10P modified acrylic resin has so many advantages in application, the existing E-10P modified acrylic resin production process has the problem that the color of the E-10P modified acrylic resin is darker, thus Its scope of application is limited, and in some coating fields with high color requirements, the use requirements cannot be met. Moreover, the solid content, viscosity and other properties of the existing E-10P modified acrylic resin still cannot meet the ideal use requirements.
[0007] The traditional acrylic resin production process needs to completely react the epoxy group and carboxylic acid in E-10P, usually by increasing the temperature by pressurizing, but the color of the resin will be deepened if the temperature is too high, or by increasing the reaction time The method to completely react the epoxy group and carboxylic acid in E-10P will take a long time, and at the same time, the residence time of the resin in the reactor will increase, and the color of the resin will also deepen
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Embodiment 1
[0023] 1) Add the PMA solvent of 30 parts by weight to the reactor, and feed nitrogen into the reactor;
[0024] 2) The reactor was heated to 142°C and refluxed;
[0025] 3) 50 parts by weight of mixed monomers (10 parts by weight of methyl methacrylate, 14 parts by weight of n-butyl acrylate, 4 parts by weight of n-butyl methacrylate, 4 parts by weight of acrylic acid, 18 parts by weight Hydroxyethyl methacrylate), 20 parts by weight of glycidyl tert-carbonate and 0.5 parts by weight of tert-butyl peroxide 3,5,5 trimethylhexanoate are mixed uniformly to obtain a mixture, and within 3 hours The mixture was added dropwise into the reactor, and the temperature of the reactor was controlled at 142°C, and then kept for 1 hour for reaction;
[0026] 4) Add the remaining 0.1 parts by weight of tert-butyl peroxide 3,5,5 trimethylhexanoate into the reactor, and then add 0.1% of N,N-dimethyl Base cyclohexylamine, and then heat preservation reaction for 1 hour to obtain E-10P modified...
Embodiment 2
[0028] 1) Add the PMA solvent of 35 parts by weight to the reactor, and feed nitrogen into the reactor;
[0029] 2) The reaction kettle was heated to 143°C and refluxed;
[0030] 3) 55 parts by weight of mixed monomers (12 parts by weight of methyl methacrylate, 10 parts by weight of n-butyl acrylate, 5 parts by weight of acrylic acid, 20 parts by weight of hydroxyethyl methacrylate, 8 parts by weight of styrene), 25 parts by weight of glycidyl tert-carbonate and 0.6 parts by weight of tert-butyl peroxy-3,5,5-trimethylhexanoate were mixed uniformly to obtain a mixture, and the mixture was dropped within 3 hours Add it to the reactor, the temperature of the reactor is 143°C, and then keep it warm for 1 hour;
[0031] 4) Add the remaining 0.2 parts by weight of tert-butyl peroxy-3,5,5-trimethylhexanoate, and then add 0.1% of the total amount of N,N-dimethylhexanoate to the reaction kettle Hexylamine, and then incubated for 1 hour to obtain E-10P modified acrylic resin with lig...
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Abstract
The invention discloses a preparation method of E-10P modified acrylic resin which can reduce the color of the resin. The preparation method comprises the following steps: 1) adding PMA solvent into a reaction kettle and feeding nitrogen gas; 2) heating the reaction kettle to 142 ~ 144 ° C, reflux; 3) Mix a part of the total amount of initiator, mixed monomers and glycidyl tertiary carbonic acid evenly to obtain a mixture, and then add the mixture dropwise to the reactor within 3 hours, the reactor Control the temperature at 142-144°C, and then keep it warm for 1 hour; 4) add the remaining initiator, and then add 0.1% of N,N-dimethylcyclohexylamine to the reaction kettle, accounting for the total amount of raw materials, Then heat preservation reaction 1 hour, obtain the lighter E-10P modified acrylic resin of color. The preparation method has a short reaction time and thorough reaction, and the prepared E-10P modified acrylic resin can significantly reduce its color while ensuring excellent various properties, so that it can be widely used in the field of coatings with high color requirements .
Description
technical field [0001] The invention belongs to the field of acrylic paint, in particular to a preparation method of E-10P modified acrylic resin which can reduce the color of resin. Background technique [0002] E-10P is glycidyl tertiary carbonate. Tertiary carbonic acid is a highly branched fatty acid containing 10 carbon atoms. E-10P is a large group hydrophobic monomer, which can introduce its structure into the resin through the reaction of active epoxy groups and carboxylic acids. The acrylic resin modified with E-10P has excellent performance, it has excellent compatibility with polar solvents, has excellent acid resistance and alkali resistance, and has good outdoor stability and gloss, which can improve the pigment loading capacity , reduce resin viscosity, good resistance to polar solvents, and has excellent solubility in aromatic solvents. [0003] The reason why E-10P can reduce the viscosity of the resin is that the resin containing glycidyl tertiary carboni...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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