A kind of composite latex based on epoxy-modified acrylic resin and preparation method thereof

A technology of acrylic resin and epoxy diacrylate, which is applied in the field of composite latex, can solve the problems of difficult judgment of the reaction end point, difficult control of the preparation process, and easy occurrence of phase-to-phase compatibility between epoxy resin and polyacrylic resin, and achieve Good passivation effect, mild reaction, and controllable reaction process

Active Publication Date: 2019-07-09
SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these preparation methods, the preparation process is not easy to control, the reaction end point is difficult to judge, and the phase compatibility between the epoxy resin phase and the polyacrylic resin phase is also prone to problems.

Method used

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  • A kind of composite latex based on epoxy-modified acrylic resin and preparation method thereof
  • A kind of composite latex based on epoxy-modified acrylic resin and preparation method thereof
  • A kind of composite latex based on epoxy-modified acrylic resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A composite latex based on an epoxy-modified acrylic resin comprising:

[0036] Water, 60wt%;

[0037] Acrylate monomer mixture, 35wt%;

[0038] Bisphenol A epoxy diacrylate 6104Y (China Miki), 1wt%;

[0039] Anionic emulsifier Rhodafac RS-610 (Rhodia), 2.5wt%;

[0040] Nonionic emulsifier ABEX2535 (Rhodia), 1.4wt%;

[0041] Ammonium persulfate, 0.1 wt%.

[0042] Wherein, the acrylate monomer mixture includes the following materials:

[0043] Methyl methacrylate, 50wt%;

[0044] Styrene, 5wt%;

[0045] Isooctyl acrylate, 40wt%;

[0046] Acrylic acid, 2.5wt%;

[0047] Hydroxyethyl methacrylate, 2.5 wt%.

[0048] The composite latex based on epoxy-modified acrylic resin is prepared by the following steps:

[0049] The first step: 70% of the total amount of the initiator is dissolved in water accounting for 30% of the total amount, and then poured into the reaction bottle;

[0050] The second step: mix the bisphenol A epoxy diacrylate with the acrylic monomer mi...

Embodiment 2

[0053] A composite latex based on an epoxy-modified acrylic resin comprising:

[0054] Water, 40wt%;

[0055] Acrylate monomer mixture, 41wt%;

[0056] Bisphenol A epoxy diacrylate 6104Y (China Miki), 10wt%;

[0057] Anionic emulsifier Rhodafac RS-610 (Rhodia), 4wt%;

[0058] Nonionic emulsifier ABEX2535 (Rhodia), 4wt%;

[0059] Ammonium persulfate, 1 wt%.

[0060] Wherein, the acrylate monomer mixture includes the following materials:

[0061] Methyl methacrylate, 60wt%;

[0062] Styrene, 10wt%;

[0063] Isooctyl acrylate, 25wt%;

[0064] Acrylic acid, 0.5wt%;

[0065] Hydroxyethyl methacrylate, 4.5 wt%.

[0066] The composite latex based on epoxy-modified acrylic resin is prepared by the following steps:

[0067] The first step: 40% of the total amount of the initiator is dissolved in water accounting for 50% of the total amount, and then poured into the reaction bottle;

[0068] The second step: mix the bisphenol A epoxy diacrylate with the acrylic monomer mixtur...

Embodiment 3

[0071] A composite latex based on an epoxy-modified acrylic resin comprising:

[0072] Water, 30wt%;

[0073] Acrylate monomer mixture, 60wt%;

[0074] Bisphenol A epoxy diacrylate 6104Y (China Miki), 4wt%;

[0075] Anionic emulsifier Rhodafac RS-610 (Rhodia), 2.8wt%;

[0076] Nonionic emulsifier ABEX2535 (Rhodia), 2.8wt%;

[0077] Ammonium persulfate, 0.4 wt%.

[0078] Wherein, the acrylate monomer mixture includes the following materials:

[0079] Methyl methacrylate, 55% by weight;

[0080] Styrene, 8wt%;

[0081] Isooctyl acrylate, 31.5wt%;

[0082] Acrylic acid, 5wt%;

[0083] Hydroxyethyl methacrylate, 0.5 wt%.

[0084] The composite latex based on epoxy-modified acrylic resin is prepared by the following steps:

[0085] The first step: 50% of the total amount of the initiator is dissolved in water accounting for 45% of the total amount, and then poured into the reaction bottle;

[0086] The second step: mix the bisphenol A epoxy diacrylate with the acrylic mo...

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PUM

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Abstract

The invention discloses composite latex based on epoxy modified acrylic resin and a preparation method thereof. The composite latex based on epoxy modified acrylic resin comprises 30-60wt% of water, 20-60wt% of an acrylate monomer mixture, 1-10 wt% of bisphenol A epoxy diacrylate, 1-4 wt% of an anionic emulsifier, 1-4 wt% of a nonionic emulsifier, and 0.1-1 wt% of a water-soluble initiator. When the composite latex based on epoxy modified acrylic resin is applied to the surface of a substrate, a cured coating has better heat resistance, mechanical properties and corrosion resistance.

Description

technical field [0001] The invention relates to a composite latex, in particular to a composite latex based on epoxy-modified acrylic resin and a preparation method thereof. Background technique [0002] Emulsion polymerization has the characteristics of low system viscosity, fast heat transfer, environmental protection and separation effect, and has been widely used in coatings, paints, adhesives, rubber and other fields. Polyacrylate emulsion has excellent weather resistance, easy film formation, oil resistance, acid and alkali resistance, low price, simple synthesis process, and meets environmental protection requirements, and has been widely used. However, in pure acrylate emulsions, since the resin molecules are not cross-linked, the film-formers of the emulsion have disadvantages such as poor compactness, high minimum film-forming temperature, poor water resistance, and poor adhesion, especially when used in metal protective coatings. The disadvantages are even more m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/10C08F220/14C08F220/18C08F212/08C08F220/28C08F2/26C08F2/30C09D151/08
CPCC08F2/26C08F2/30C08F283/105C09D151/08C08F220/14
Inventor 李为立徐泽孝
Owner SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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