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Preparation method of alcohol soluble normal-temperature curing bi-component polyurethane-acrylate resin

A two-component polyurethane curing technology at room temperature, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of unfavorable environment and the health of builders, and achieve good alcohol solubility, save production costs, and strong environmental adaptability Effect

Inactive Publication Date: 2010-07-28
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the existing two-component polyurethane adhesives that are not conducive to the environment and the health of builders, the present invention provides a two-component resin without isocyanate groups, which can be cured at room temperature and can save production costs. Preparation method of alcohol-soluble room temperature curing two-component polyurethane-acrylate resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Alcohol-soluble two-component resins include the following raw materials:

[0047] 15 parts of ethyl acrylate,

[0048] Glycidyl methacrylate 6 parts,

[0049] 5 parts of vinyl acetate,

[0050] 4 parts of hydroxyethyl acrylate,

[0051] 50 parts of industrial alcohol,

[0052] 0.2 parts of azobisisobutyronitrile;

[0053]The second material of alcohol-soluble two-component resin includes the following raw materials:

[0054] 30 parts of isophorone diisocyanate,

[0055] Polypropylene glycol 1000 30 parts,

[0056] 6 parts of 1,4-butanediol,

[0057] 0.5 parts of dibutyltin dilaurate,

[0058] 3 parts of acetone,

[0059] 5 parts of ethylenediamine,

[0060] 50 parts of industrial alcohol.

[0061] The specific preparation method is as follows:

[0062] 1), first add 40 parts of industrial alcohol and 5 parts of ethyl acrylate into the reaction bottle, and heat it to 78°C;

[0063] 2) Mix 1 / 3 initiator, glycidyl methacrylate, vinyl acetate, and hydroxyethyl...

Embodiment 2

[0072] Alcohol-soluble two-component resins include the following raw materials:

[0073] 14 parts of ethyl acrylate,

[0074] 1 part methyl acrylate,

[0075] Glycidyl acrylate 5 parts,

[0076] 8 parts of hydroxyethyl methacrylate,

[0077] 1 part of hydroxypropyl acrylate,

[0078] 1 part vinyl acetate

[0079] 50 parts of industrial alcohol,

[0080] 0.2 parts of benzoyl peroxide;

[0081] The second material of alcohol-soluble two-component resin includes the following raw materials:

[0082] 27 parts of dicyclohexylmethane diisocyanate,

[0083] Macrogol 1000 30 parts,

[0084] 3 parts of diethylene glycol,

[0085] 0.3 parts of stannous octoate,

[0086] Butanone 5 parts,

[0087] 7 parts of diethylenetriamine,

[0088] 50 parts of industrial alcohol,

[0089] Concrete preparation method is with embodiment 1.

Embodiment 3

[0091] Alcohol-soluble two-component resins include the following raw materials:

[0092] 10 parts of ethyl acrylate,

[0093] Allyl glycidyl ether 10 parts,

[0094] Acrylamide 5 parts,

[0095] 5 parts of vinyl acetate,

[0096] 50 parts of industrial alcohol,

[0097] Benzoyl peroxide 0.2 parts,

[0098] The second material of alcohol-soluble two-component resin includes the following raw materials:

[0099] 18 parts of hexamethylene diisocyanate,

[0100] 40 parts of polytetrahydrofuran ether glycol,

[0101] 3 parts of ethylene glycol,

[0102] Dibutyltin dilaurate 0.1 parts

[0103] Stannous octoate 0.1 parts

[0104] 3 parts of N,N-dimethylformamide,

[0105] 10 parts of triethylenetetramine,

[0106] 50 parts of industrial alcohol;

[0107] Concrete preparation method is with embodiment 1.

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Abstract

The invention relates to a preparation method of alcohol soluble normal-temperature curing bi-component polyurethane-acrylate resin. The preparation method comprises the following steps of: preparing a substance A; preparing a substance B; and mixing the substance A and the substance B in the proportion of 3-6:1 to obtain the alcohol soluble normal-temperature curing bi-component polyurethane-acrylate resin, wherein the raw material substance A comprises acrylate, epoxy group monomer, vinylacetate or styrene, more than one type of active functional group monomer, initiating agent and industrial alcohol; and the raw material substance B comprises oligomer polyalcohol, polyisocyanate, chain extending agent, catalyst, polyamine, solvent and industrial alcohol. The alcohol is completely used as the solvent, and the alcohol solubility is favorable; compared with a bi-component polyurethane product, the components contain no toxic and dissociative isocyanate, and the obtained product has strong environmental adaptation, low requirements on moisture and interface cleaning degree, high drying speed after being coated, normal-temperature curing, good glossiness, large adjustable range of glass temperature and wide application range.

Description

technical field [0001] The invention belongs to the technical field of chemical products and preparation methods, and in particular relates to a normal temperature curing two-component alcohol-soluble resin. Background technique [0002] Compared with their solvent-based products, polyurethane (PU) emulsion and polyacrylate (PA) emulsion have the advantages of low price, safety, non-flammability, non-toxicity, and no pollution to the environment. Pure PA emulsion has the defects of poor abrasion resistance, water resistance and chemical resistance, low solid content, and limited application range. PU and PA have complementary effects in nature. PUA composite emulsion combines the advantages of both, and has the characteristics of wear resistance, corrosion resistance, brightness, softness and elasticity, water resistance, good mechanical properties, and good weather resistance, so it is known as the "third-generation water-based polyurethane". However, the pure water-based...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08L33/12C08L75/08C08F220/18C08F220/32C08F220/28C08F218/08C08F216/14C08F220/56C08F220/14C08G18/48C09D133/08C09D133/12C09D175/08
Inventor 杨建军吴庆云张建安吴明元金志来
Owner ANHUI UNIVERSITY
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