Bonding glue used for glass mosaics and preparation method thereof

A glass mosaic and adhesive technology, applied in the field of adhesive, can solve the problems of reduced degree of polymerization, smaller molecular weight, insufficient adhesive force and water resistance of adhesive

Active Publication Date: 2013-04-24
FOSHAN HAITE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is a graft polymerization reaction, the process is complicated, and the crosslinking effect is not good. During the polymerization process, the molecular chain of the water-based polyurethane is broken due to the oxidation of the initiator, resulting in the shortening of the polyurethane molecular chain, thereby reducing the molecular weight and the degree of polymerization. reduce its physical performance
[0004] In addition, most of the products on the market use ordinary anionic and nonionic emulsifiers, and the cohesive force and water resistance of the adhesive adhesive are insufficient, because the ordinary emulsifiers used to make the adhesive are prone to occur on the surface of the adhesive film. Migration, resulting in reduced water resistance and reduced strength

Method used

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  • Bonding glue used for glass mosaics and preparation method thereof
  • Bonding glue used for glass mosaics and preparation method thereof
  • Bonding glue used for glass mosaics and preparation method thereof

Examples

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preparation example Construction

[0142] Correspondingly, an embodiment of the present invention also provides a method for preparing an adhesive for glass mosaics, including:

[0143] S101, add 1-6% emulsifier, 10-60% styrene and 20-70% mixed monomer into the emulsification tank simultaneously, add 10-60% pure water and stir evenly, emulsify for 0.1-2 hours, and make pre- Lotion;

[0144] Preferably, the time of the emulsification reaction is 0.5-1 hour.

[0145] Wherein, the emulsifier is an emulsion made of vinyl alkylphenol polyoxyethylene ether sodium sulfate and anion.

[0146] The mixed monomers include acrylate, hydroxyethyl acrylate, acrylic acid and vinyltrimethoxysilane;

[0147] Preferably, the mixed monomers include:

[0148] Acrylate 20~60%

[0149] Hydroxyethyl Acrylate 0.5~5%

[0150] Acrylic acid 0.5~5%

[0151] Vinyltrimethoxysilane 1~10%;

[0152] The acrylate is butyl acrylate and / or octyl acrylate and / or methyl methacrylate.

[0153] In addition, in the above-mentioned emulsificati...

Embodiment 1

[0188] Add the emulsion made of 1% vinyl alkylphenol polyoxyethylene ether sodium sulfate and anion, 10% styrene and 20% acrylate into the emulsification tank simultaneously, add 30% pure water and stir evenly, and emulsify for 0.1 hour to prepare pre-emulsion;

[0189] The pre-emulsion and 0.1% aqueous initiator potassium persulfate aqueous solution were synchronously dropped into the reactor for polymerization for 1 hour, and the reaction temperature was 40°C;

[0190] Add 0.1% peroxide initiator di-tert-butyl peroxide to denucleate the residual monomer;

[0191] Add reducing agent sodium formaldehyde thiosulfate to decompose unreacted peroxide initiator di-tert-butyl peroxide;

[0192] Vacuum;

[0193] Add 37.8% water-based polyurethane to the emulsion that has been treated with residual monomers, stir continuously, and blend and crosslink for 0.5 hours at a temperature of 50°C;

[0194] Add 1% defoamer emulsified silicone oil for product preparation;

[0195] Lower the...

Embodiment 2

[0197] Emulsion of 1% vinyl alkylphenol polyoxyethylene ether sodium sulfate and anion, 30% styrene and 25% acrylate, 0.5% hydroxyethyl acrylate, 0.5% acrylic acid and 4% vinyltrimethoxysilane Simultaneously add to the emulsification tank, add 30% pure water and stir evenly, emulsify for 1 hour to make a pre-emulsion;

[0198] The pre-emulsion and 1% aqueous initiator sodium persulfate aqueous solution were synchronously added dropwise to the reactor for 3 hours of polymerization, and the reaction temperature was 70°C;

[0199] Add 1% peroxide initiator benzoyl peroxide to denucleate the residual monomers;

[0200] Add reducing agent sodium sulfite to decompose unreacted peroxide initiator benzoyl peroxide;

[0201] Vacuum;

[0202] Add 5% water-based polyurethane to the emulsion treated by removing residual monomers, stir continuously, and blend and cross-link for 1 hour at a temperature of 70°C;

[0203] Add 1% defoamer emulsified mineral oil, 1% thickener polyacrylic aci...

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Abstract

The invention discloses a bonding glue used for glass mosaics. The bonding glue is mainly prepared from the following raw materials by weight: 20-70% of a mixed monomer, 10-60% of styrene, 5-50% of water-based polyurethane, 1-6% of an emulsifier, and 0.1-3% of an initiator. The mixed monomer comprises acrylic ester, hydroxyethyl acrylate, acrylic acid and vinyl trimethoxysilane. The emulsifier is an emulsion prepared from vinyl alkylphenol polyoxyethylene ether sodium sulfate and anions. The initiator is a water-based initiator and / or a peroxide initiator. Correspondingly, the invention discloses a preparation method of the bonding glue used for glass mosaics. The method consists of: preparing a pre-emulsion, adding the initiator to conduct polymerization, removing residual monomers, adding the water-based polyurethane to perform blending crosslinking, carrying out dosing treatment, and performing cooling and discharging, thus obtaining the bonding glue. According to the invention, the bonding glue has an interpenetrating network (IPN) structure, and has the characteristics of excellent bonding effect, high strength, vibration resistance, and impact resistance.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an adhesive used for glass mosaics and a preparation method thereof. Background technique [0002] In recent years, with the upgrading of hotels and home decoration, a kind of craft colorful glass decoration material has appeared. A special water-based adhesive is required to bond the glass sheet coated with decorative paint to the chemical fiber mesh. The adhesive requires water-based environmental protection, strong cohesive force, good water resistance, and colorless film. [0003] The acrylic emulsion currently on the market, also called acrylic resin polymerized latex, is a kind of chemically synthesized latex, which is made by the copolymerization of acrylate and methacrylate and acrylic acid, methacrylic acid or other ethylenic monomers. It is thermosetting and cross-linking, cheap, non-toxic, non-flammable, safe, and does not pollute the environment, but it is difficu...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J133/08C09J133/12C09J125/14C08F220/18C08F220/14C08F212/08C08F2/26C08F220/28C08F220/06C08F230/08
Inventor 郑伟洲张诚
Owner FOSHAN HAITE CHEM TECH
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