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Preparation method of E-10P modified acrylic resin capable of reducing color of resin

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 ideal use requirements, cannot meet use requirements, and take a long time. To achieve the effect of reducing color and luster, meeting application requirements and shortening reaction time

Active Publication Date: 2019-07-12
泰兴盛嘉树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Preparation method of E-10P modified acrylic resin capable of reducing color of resin
  • Preparation method of E-10P modified acrylic resin capable of reducing color of resin

Examples

Experimental program
Comparison scheme
Effect test

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 capable of reducing the color of resin. The preparation method comprises the following steps: firstly, adding a PMA solventinto a reaction kettle and feeding nitrogen; secondly, rising the temperature of the reaction kettle to be 142 to 144 DEG C and performing backflow; thirdly, uniformly mixing a part of the total amount of an initiator, mixed monomer and tert-carboxylic glycidyl ester, so as to obtain a mixture, then dropwise adding the mixture into the reaction kettle within 3 hours, controlling the temperature of the reaction kettle to be 142 to 144 DEG C, and then performing thermal reaction for 1 hour; fourthly, adding the rest of the initiator, adding N, N-dimethyl cyclohexyl amine which occupies 0.1 percent of the total amount of preparation materials into the reaction kettle, and then performing thermal reaction for 1 hour, so as to obtain the f E-10P modified acrylic resin light in color. The preparation method has the advantages that the reaction time is short, reaction is thorough, and the formed E-10P modified acrylic resin can obviously reduce the color while guaranteeing various excellentperformances, so that the resin can be applied to the field of coating with high requirement on color.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/14C08F220/20C08F220/18C08F220/28C08F220/06C08F220/14
CPCC08F8/14C08F220/20C08F220/1804C08F220/06C08F220/14C08F212/08
Inventor 张丹军梁成良杨剑挺张辉
Owner 泰兴盛嘉树脂有限公司