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Silicon-containing acrylic-acid-modified epoxy ester resin and paint thereof

A technology of epoxy acrylate and epoxy resin, which is applied in the field of epoxy resin, can solve the problems of short baking time, achieve fast drying speed, avoid the risk of paint falling off, and meet the requirements of deep processing

Active Publication Date: 2012-06-13
常州市弘可利办公用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no coating with short baking time and long-term storage.

Method used

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  • Silicon-containing acrylic-acid-modified epoxy ester resin and paint thereof
  • Silicon-containing acrylic-acid-modified epoxy ester resin and paint thereof
  • Silicon-containing acrylic-acid-modified epoxy ester resin and paint thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Synthesis of Acrylic Epoxy Resin:

[0045] Synthesize epoxy acrylate resin by composition and component (all by weight) listed in Table 1.

[0046] Table 1

[0047]

[0048] In a four-necked flask equipped with a thermometer, a stirrer and a condenser, add epoxy resin, oleic acid and linoleic acid, add 0.1% catalyst, heat up to 185°C, stop the reaction when the acid value is less than 4mgKOH / g, and cool down to Add acrylic acid at 100°C, stop the reaction when the acid value is less than 4mgKOH / g, and prepare epoxy acrylate resin.

[0049] Synthesis of Silicon-Containing Acrylic Modified Epoxy Ester:

[0050] Take a certain amount of the above-mentioned acrylate epoxy resin, add silicon-containing acrylic acid monomers to free-radical copolymerization, and synthesize the silicon-containing acrylate epoxy resin. The acrylic monomers used are mixed from various monomers, and the compositions and amounts used in each embodiment are listed in Table 2 (all calculated b...

Embodiment 2

[0055] The synthetic method of epoxy acrylate resin is the same as that in Example 1, and one or more of E-51, E-44, E-20 and E-12 can be used as reactants for epoxy resin. The synthesis of silicon-containing acrylic acid-modified epoxy ester is also carried out with reference to the method of Example 1. The organosilicon monomer can use vinyl trichlorosilane, methyl vinyl dichlorosilane, vinyl triethoxysilane, gamma-methyl One or more of acryloyloxypropyltrimethoxysilane and trifluoropropylmethyldichlorosilane. If benzoyl peroxide (BPO) is used as the initiator, the reaction temperature should be kept at 115°C-125°C.

Embodiment 3

[0057] Preparation of silicon-containing acrylic modified epoxy ester colored glass curtain coating

[0058] According to the ratio of each component raw material listed in Table 3, mix silicon-containing acrylic modified epoxy ester, pigment, and filler at high speed for 30 minutes, grind to a fineness of 25 μm, and then add crosslinking agent, solvent and additives Stir evenly, filter, measure and pack after passing the inspection.

[0059] The anti-skinning agent is selected from methyl ethyl ketone oxime, butyraldehyde oxime or dipentene. The alcohol solvent is propanol or butanol, etc. Use trimethylbenzene, naphtha or raffinate as the high boiling point solvent.

[0060] Preparation Process:

[0061] At the production site, the glass curtain coating was diluted with solvent xylene to the construction viscosity, sprayed on the glass surface, baked at 130°C-160°C for 5-7min, and tested performance after 24 hours off-line as shown in Table 4.

[0062] table 3

[0063] ...

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Abstract

The invention provides a silicon-containing acrylic-acid-modified epoxy ester resin, which is prepared by the following steps of: carrying out a high-temperature esterification addition reaction on epoxy resin and fatty acid under the action of esterification catalyst, then reducing reaction temperature, adding acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and carrying out an addition reaction under the action of low-temperature esterification catalyst to obtain acrylic acid epoxy ester resin; and then carrying out radical polymerization on the prepared acrylic acid epoxy ester resin, acrylic acid monomer and organic silicon monomer in the presence of an initiator to prepare the silicon-containing acrylic-acid-modified epoxy ester resin. The silicon-containing acrylic-acid-modified epoxy ester resin provided by the invention is a main film forming material; the paint for curtain spraying of glass is prepared by the silicon-containing acrylic-acid-modified epoxy ester resin and a cross-linking agent; the paint can satisfy the painting process requirements of painting production line of wide curtains as long as 3 m, and can be completely dried after being baked at 130-160 DEG C for 5-7 minutes; and after drying is finished, the hardness and flexibility of the coated film is balanced, thus a paint falling phenomenon during edging, perforating and sandblasting for deep processing of process glass is avoided.

Description

technical field [0001] The invention relates to an epoxy ester resin, in particular to a silicon-containing acrylic modified epoxy ester resin and a paint containing the resin. Background technique [0002] Glass has achieved great success in replacing polymer composite materials in the decoration market. With the development of the economy, people have higher and higher requirements for the improvement of living standards and the aesthetics of the working environment, and pure colorless glass cannot meet people's requirements. It is undoubtedly the fastest and most economical way to apply a layer of color paint on colorless glass to make color. Therefore, stained glass is widely used in the decoration of home decoration, hotels, shopping malls and KTV and other places. At present, in addition to basic properties such as good adhesion, corrosion resistance, high hardness and flexibility, glass coatings also need to meet the construction requirements for large-scale continu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F220/14C08F212/08C08F220/18C08F230/08C09D151/08
Inventor 包柏青匡启荣童朝健
Owner 常州市弘可利办公用品有限公司
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