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Acrylic-modified alcohol acid-epoxy ester hybrid resin and paint thereof

A technology of epoxy resin and alkyd resin, which is applied in the direction of coating, etc., can solve the problems that cannot meet the needs of the process, and achieve the effects of good acid and alkali resistance and water resistance, stable curtain and good adhesion

Active Publication Date: 2013-04-03
常州市弘可利办公用品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the line speed of the current mirror production line is continuously increasing, the baking temperature is also decreasing, so this technology cannot meet the needs of the equipment and equipment.

Method used

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  • Acrylic-modified alcohol acid-epoxy ester hybrid resin and paint thereof
  • Acrylic-modified alcohol acid-epoxy ester hybrid resin and paint thereof
  • Acrylic-modified alcohol acid-epoxy ester hybrid resin and paint thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Synthesis of acrylic modified alkyd-epoxy ester hybrid resin:

[0051] Step 1: Preparation of epoxy ester: As shown in the formula in Table 1, put epoxy resin E-12, soybean oil acid, linolenic acid and zinc oxide into the reaction kettle, add 40kg of refluxing xylene, heat up to 150°C-160°C and then click Stirring, start stirring when there is no abnormality in the motor, keep warm for 4 hours at a temperature of 180°C-200°C and start to detect the acid value and viscosity. While diluting with xylene until the solid content is (50±1)%, at the same time control the viscosity to 100s-250s (coat four cups, 25°C), filter and discharge for later use;

[0052] Step 2: Preparation of alkyd resin: According to the formula in Table 1, mix soybean oil, linseed oil and glycerin into the reaction kettle, heat to about 120°C, add lithium hydroxide, continue to heat up to 240°C-250°C, and keep warm for 1 hour-3 Hours until the alcoholysis is clear (according to alcoholyzate: 95% eth...

Embodiment 2

[0057] Synthesis of Acrylic Modified Alkyd-Epoxy Hybrid Resin:

[0058] Step 1: Preparation of epoxy ester: as shown in the formula in Table 2, put epoxy resin E-20, soybean oil acid, oleic acid, linolenic acid and zinc oxide into the reaction kettle, add 40kg of reflux xylene, and heat up to 180°C-200°C Insulate at ℃ for 4 hours and start to detect the acid value and viscosity. When the acid value is ≤10mgKOH / g, it is the end of the reaction. Put the material into the dilution kettle, and dilute it with xylene while cooling until the solid content is (50±1)%. Adjust the viscosity to 100s-250s, filter for later use;

[0059] Step 2: Preparation of alkyd resin: According to the formula in Table 2, mix soybean oil, linseed oil and glycerin into the reaction kettle, heat to about 120°C, add lithium hydroxide, continue to heat up to 240°C-250°C, and keep warm for about 1h until alcohol Solution is clear (according to alcoholysis product: 95% ethanol = 1:3), lower the temperature,...

Embodiment 3

[0065] Preparation of Mirror Back Curtain Coating (Primer)

[0066] According to the ratio of each component raw material listed in Table 3, the acrylic modified alkyd-epoxy hybrid resin, anti-skinning agent, pigment, and filler were mixed and dispersed at high speed for 30 minutes, and then ground by a sand mill to a fineness of Below 25μm, then add cross-linking agent, solvent and additives and stir evenly, after passing the inspection, filter, measure and pack.

[0067] Table 3 primer ingredient list (weight percent)

[0068]

[0069] Those skilled in the art can select the appropriate type and amount of drier according to actual needs and according to the guidance of textbooks or experiment manuals. In this embodiment, the drier is one or more of naphthenic acid metal soap and isooctanoic acid metal soap.

[0070] Those skilled in the art can select the appropriate anti-skinning agent type and dosage according to actual needs and according to the guidance of textbooks...

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Abstract

The invention relates to an acrylic-modified alcohol acid-epoxy ester hybrid resin which is prepared by the following steps: carrying out high-temperature esterification reaction on an epoxy resin and fatty acid under the action of an esterification catalyst to obtain epoxy ester; carrying out alcoholysis on vegetable oil and polyalcohol at high temperature, cooling, and adding polybasic acid for esterification, thereby obtaining an alkyd resin; and adding acrylic monomers into the epoxy ester-alkyd resin mixed solution, and carrying out graft polymerization under the action of an initiator to obtain the hybrid resin. The hybrid resin can be used as a main film forming material to prepare a high-temperature baking varnish together with a crosslinking agent. The high-temperature baking varnish can be used as various curtain-coating mirror back paints, including silver mirror back paints, aluminum mirror back paints, glass paints and the like, can satisfy the technological requirements for application of curtain coating production lines of which the width exceeds 3m, has a stable curtain coating, and can become completely dry after being baked at 150-130 DEG C for 3-5 minutes. The product has the advantages of low-temperature quick drying, high hardness, excellent adhesive force, dampness-heat resistance, chemical resistance, salt-fog resistance and the like.

Description

technical field [0001] The invention relates to a hybrid resin, in particular to a resin hybridized with acrylic modified alkyd resin and epoxy ester, and a coating with the resin as the main film-forming substance. Background technique [0002] Traditional mirrors can be divided into two categories based on the material of the metal reflective layer plated by the production method, namely silver mirrors and aluminum mirrors. With the development of science and technology, in recent years, decorative mirrors that are plated with metals of other colors to form colors are collectively called colored mirrors. Customarily, in the mirror manufacturing industry, the coatings that adopt the method of curtain spraying on the mirror manufacturing line are collectively called mirror back paints, which can be divided into silver mirror back paints, aluminum mirror back paints and glass paints according to the substrates. [0003] Silver mirrors are divided into copper-silver mirrors an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F283/01C08F212/08C08F220/14C08F220/18C08F220/28C09D151/08
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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