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Finishing water-soluble acrylic resin and preparation method thereof

A water-soluble acrylic, varnish-type technology, applied in the direction of coating, etc., can solve the problems of low solid content, poor solvent release, low viscosity, etc., achieve the balance of flexibility and strength, increase the storage temperature, and solve the effect of environmental pollution

Active Publication Date: 2015-03-11
安徽优科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most thermosetting acrylic resins used in varnishes are solvent-based resins, but solvent-based resins will bring the following disadvantages. First, construction tools must be cleaned with solvents, which are harmful to humans and the environment, and cause serious environmental pollution; It is a waste of energy and the cost is high; third, the solid content is low, the molecular weight is high, and the viscosity is high, so the construction performance is poor, the coating film fullness is poor, it is easy to be brittle at low temperature, easy to stick at high temperature, poor solvent release, and hard to dry. Slow, poor solvent resistance, and poor compatibility with other resins
[0003] Patent No. CN201110330337.5 discloses an improved method for preparing solvent-based acrylic resin for coatings, which also mentions that the solvent-based acrylic resin has low solid content and low viscosity, although the solvent-based acrylic resin prepared by the method of this patent can be Increased solids and viscosity, but still not up to practical requirements, and still do not address the other disadvantages of solvent-based resins mentioned above
[0004] The patent number is CN200710032124.8, which discloses water-soluble acrylic resin and its preparation method, which preliminarily solves the shortcomings of solvent-based resins, but the composition of the water-soluble acrylic resin lacks methacrylic acid, butyl methacrylate, and isooctyl acrylate. ester, lauryl methacrylate, isobornyl methacrylate, n-dodecanethiol, N,N-dimethylethanolamine, hydroxyethyl acrylate and hydroxypropyl acrylate, making the prepared water-soluble acrylic resin solid The content, viscosity, acid value and storage temperature are still too low, and the appearance is not the commonly used white color. It is very inconvenient to mix with other substances when using it. In addition, the method for preparing water-soluble acrylic resin is too rough, which also affects the preparation of water-soluble acrylic resin. The quality of soluble acrylic resin is greatly reduced, and it cannot meet the standards prepared in the modern chemical field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] A kind of varnish type water-soluble acrylic resin of this embodiment contains components and the content of each component is:

[0067] Acrylic 10%

[0068] Styrene 3%

[0069] Butyl Acrylate 10%

[0070] Hydroxyethyl Methacrylate 3%

[0071] Methyl methacrylate 6%

[0072] Ethanol 4%

[0073] water 15%

[0074] Methacrylic acid 3%

[0075] Butyl methacrylate 5%

[0076] Isooctyl Acrylate 8%

[0077] n-Dodecanethiol 1%

[0078] N,N-Dimethylethanolamine 5%

[0079] Lauryl Methacrylate 8%

[0080] Isobornyl Methacrylate 8%

[0081] Hydroxyethyl Acrylate 5%

[0082] Hydroxypropyl Acrylate 5%

[0083] AIBN 1%

[0084] All percentages are by weight.

[0085] A method for preparing a varnish type water-soluble acrylic resin, comprising the following steps:

[0086] Step 1: Purge the pipeline and the reactor with nitrogen for 2 minutes, add 2% ethanol into the reactor, and raise the temperature to a reflux state;

[0087] Step 2: Add 10% acrylic acid, 3% methac...

Embodiment 2

[0093] A kind of varnish type water-soluble acrylic resin of this embodiment contains components and the content of each component is:

[0094] Acrylic 10%

[0095] Styrene 5%

[0096] Butyl Acrylate 15%

[0097] Hydroxyethyl Methacrylate 5%

[0098] Methyl methacrylate 10%

[0099] Ethanol 5%

[0100] water 10%

[0101] Methacrylic acid 5%

[0102] Butyl methacrylate 8%

[0103] Isooctyl Acrylate 5%

[0104] n-Dodecanethiol 0.3%

[0105] N,N-Dimethylethanolamine 3%

[0106] Lauryl Methacrylate 4%

[0107] Isobornyl Methacrylate 5%

[0108] Hydroxyethyl Acrylate 3%

[0109] Hydroxypropyl Acrylate 3.7%

[0110] AIBN 3%

[0111] All percentages are by weight.

[0112] A method for preparing a varnish type water-soluble acrylic resin, comprising the following steps:

[0113] Step 1: Purge the pipeline and the reactor with nitrogen for 5 minutes, add 3% ethanol into the reactor, and raise the temperature to a reflux state;

[0114] Step 2: Add 10% acrylic acid, 5%...

Embodiment 3

[0120] A kind of varnish type water-soluble acrylic resin of this embodiment contains components and the content of each component is:

[0121] Acrylic 5%

[0122] Styrene 5%

[0123] Butyl Acrylate 15%

[0124] Hydroxyethyl Methacrylate 5%

[0125] Methyl methacrylate 10%

[0126] Ethanol 3%

[0127] Water 13%

[0128] Methacrylic acid 5%

[0129] Butyl methacrylate 8%

[0130] Isooctyl Acrylate 8%

[0131] n-Dodecanethiol 1%

[0132] N,N-Dimethylethanolamine 5%

[0133] Lauryl Methacrylate 3%

[0134] Isobornyl Methacrylate 8%

[0135] Hydroxyethyl Acrylate 2%

[0136] Hydroxypropyl Acrylate 2%

[0137] AIBN 2%

[0138] All percentages are by weight.

[0139] A method for preparing a varnish type water-soluble acrylic resin, comprising the following steps:

[0140] Step 1: Purging the pipeline and the reactor with nitrogen for 4 minutes, adding 1% ethanol into the reactor, and raising the temperature to a reflux state;

[0141] Step 2: Add 5% acrylic acid, 5...

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Abstract

The invention discloses finishing water-soluble acrylic resin and its preparation method and belongs to the technical field of resin. The resin provided by the invention comprises the following ingredients: acrylic acid, methacrylic acid, styrene, butyl methacrylate, butyl acrylate monomer, hydroxyethyl methylacrylate, 2-ethylhexyl acrylate, N-dodecyl mercaptan, methyl methacrylate, N,N-dimethyl ethanolamine, ethanol, water, lauryl methacrylate, Isobornyl methacrylate, hydroxyethyl acrylate, hydroxy-propyl acrylate and AIBN. The preparation method comprises six steps. By the preparation method, the required finishing water-soluble acrylic resin is finally prepared. The finishing water-soluble acrylic resin prepared by the formula and the preparation method can be used to effectively reduce costs and has an effect of environmental protection, can completely meet requirements of a finishing varnish in the aspect of prepared paint properties and overcomes the defect that water-soluble resin is not resistant to water, acid or salt in the field of traditional chemical industry.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a varnished water-soluble acrylic resin and a preparation method thereof. Background technique [0002] At present, most thermosetting acrylic resins used in varnishes are solvent-based resins, but solvent-based resins will bring the following disadvantages. First, construction tools must be cleaned with solvents, which are harmful to humans and the environment, and cause serious environmental pollution; It is a waste of energy and the cost is high; third, the solid content is low, the molecular weight is high, and the viscosity is high, so the construction performance is poor, the coating film fullness is poor, it is easy to be brittle at low temperature, easy to stick at high temperature, poor solvent release, and hard to dry. Slow, poor solvent resistance, and poor compatibility with other resins. [0003] Patent No. CN201110330337.5 discloses an improved method for preparing...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F220/18C08F220/28C08F220/14C08F212/08C09D133/02C09D133/08
Inventor 王世玉
Owner 安徽优科新材料科技有限公司
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