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Technique for preparing two-component epoxy vinyl ester resin paint

A technology of epoxy vinyl ester and resin coatings, applied in the direction of epoxy resin coatings, coatings, etc., can solve problems such as increased shrinkage, difficulty in control, and potential safety hazards, so as to reduce product shrinkage and improve adhesion Strength, enhanced wear resistance effect

Active Publication Date: 2010-10-20
HUACHANG POLYMER EAST CHINA UNIV OFSCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating construction process made of epoxy vinyl ester resin is relatively complicated, and there are three components in use: the main agent, the initiator, and the accelerator, all of which are indispensable.
The construction operation is not only cumbersome, but also has potential safety hazards
In particular, the initiator and the accelerator must not be mixed together. Once the operation is improper, the mixture of the initiator and the accelerator will cause combustion or even explosion, and the consequences will be disastrous; the dosage needs to be strictly controlled, and the shrinkage will increase if too much is added. , if too little is added, the curing will be slow and the surface of the coating will be sticky, etc., which is difficult to control

Method used

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  • Technique for preparing two-component epoxy vinyl ester resin paint
  • Technique for preparing two-component epoxy vinyl ester resin paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of base material liquid: 100 parts by weight of vinyl ester resin, 15 parts of reactive diluent styrene, and 2 parts of accelerator cobalt naphthenate styrene solution, put into the batching tank in sequence, stir evenly under normal temperature and normal pressure, and set aside for use.

[0026] Preparation of titanium dioxide paste: put in ultra-fine titanium dioxide 6, toner iron oxide red 8, additives: defoamer polysiloxane solution 0.2, dispersant low molecular weight unsaturated carboxylic acid polymer 0.44, leveling agent amino resin 4. Plasticizer dibutyl phthalate 2, anti-settling agent modified urea solution 2, and the base material liquid 85, feed while stirring during the feeding process, or after feeding a raw material, wait to be basically stirred After mixing evenly, put in the second raw material. After feeding, use a high-speed disperser to disperse at low speed (1200±200 rpm) for 10-15 minutes, and then use high-speed gear (2200±200 rpm) to...

Embodiment 2

[0031] Preparation of base material liquid: 106 parts by weight of vinyl ester resin, 16 parts of reactive diluent styrene, and 2.6 parts of accelerator cobalt naphthenate styrene solution, put into the batching tank in sequence, stir evenly under normal temperature and normal pressure and set aside for use.

[0032] Preparation of titanium dioxide slurry: put in ultra-fine titanium dioxide 9, toner fast yellow 5, additives: defoamer polysiloxane solution 0.3, dispersant low molecular weight unsaturated carboxylic acid polymer 0.5, leveling agent amino resin 5.6, plasticizer dibutyl phthalate 3, anti-sedimentation agent polyethylene wax slurry 3 and the base material liquid 90, stirring, dispersing and grinding in the feeding process are the same as in Example 1;

[0033] Preparation of filler slurry: Pour Yunwu powder 10, precipitated barium sulfate 39 and the rest of the base material liquid into the batching tank, and the following dispersion and grinding are the same as in ...

Embodiment 3

[0037] Preparation of base material liquid: vinyl ester resin 120 (weight parts), reactive diluent methyl methacrylate 18, accelerator cobalt naphthenate styrene solution 5, drop into batching tank successively, after normal temperature, normal pressure stir evenly, wait for use.

[0038] Preparation of titanium dioxide slurry: 8 superfine titanium dioxide, 6 toner phthalocyanine green, additives: defoamer polysiloxane solution 0.4, dispersant low molecular weight unsaturated carboxylic acid polymer 0.7, leveling agent amino resin 8, plasticizer dibutyl phthalate 4, anti-settling agent modified urea solution 4 and the base material liquid 100, stirring, dispersing and grinding during the feeding process are the same as in Example 1;

[0039] Preparation of filler slurry: Pour Yunwu powder 6, precipitated barium sulfate 20 and the rest of the base material liquid into the batching tank, and the following dispersion and grinding are the same as in Example 1;

[0040] Pour the t...

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Abstract

The invention discloses a preparation process for two-component epoxy vinyl ester resin coating and is characterized in that: according to the weight proportion, vinyl ester resin 100-120 is diluted by response type diluting agent 14-20, accelerant 2-5 is added to pre-accelerate to form basic material liquid, then titanium white slurry and filler paste are routinely prepared, a finished componentA is obtained by dispersing, grinding, mixing and evenly filtering, a component B is evocating agent; methyl ethyl ketone is peroxidized, the proportion during the use is that A:B is equal to 1:0.02 to 1:0.04. The preparation process has the advantages that: the preparation process adopts a pre-acceleration method to make the product change into two components from the prior three components, eliminates the safety hidden trouble such as combustion, explosion and so on, also decreases the shrinkage ratio of the product, improves the viscosity of the coating, improves the bonding strength, enhances the abrasion resistance, and is solvent-free coating which meets the requirement of environmental protection.

Description

technical field [0001] The invention belongs to the technical field of high molecular polymers, and in particular relates to a preparation process of a two-component vinyl ester resin coating with excellent acid and alkali corrosion resistance, which uses epoxy vinyl ester resin as a matrix film-forming substance. Background technique [0002] Vinyl ester resin is a free radical-initiated thermosetting resin prepared by the reaction of epoxy resin and methacrylic acid. Its molecular ends contain vinyl ester groups, and the middle skeleton is epoxy resin, so it has both epoxy resin and Excellent mechanical properties, corrosion resistance, high temperature resistance, easy fluidity and fast curing of unsaturated polyester resin. The methacrylic acid group at the end of the molecular bond also improves its resistance to sunlight aging (weather resistance). However, the coating construction process made of epoxy vinyl ester resin is relatively complicated, and there are three ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10
Inventor 雷浩赵同嘉
Owner HUACHANG POLYMER EAST CHINA UNIV OFSCI & TECH
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