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

A technology of epoxy resin and alkyd resin, applied in the direction of coating, can solve the problem of unable to meet the needs of the process, and achieve the effect of good acid and alkali resistance and water resistance, smooth and flat board surface, and excellent performance

Active Publication Date: 2014-06-11
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: Prepare epoxy ester: as shown in Table 1, put epoxy resin E-12, soybean oil acid, linoleic acid and zinc oxide into the reactor, add 40kg of reflux xylene, and heat to 150℃-160℃. When there is no abnormality in the motor, start the stirring. When the temperature is 180℃-200℃, keep for 4 hours and start to detect the acid value and viscosity. When the acid value is less than or equal to 4mgKOH / g, it is the end of the reaction. While diluting with xylene to the solid content of (50±1)%, while controlling the viscosity to 100s-250s (coating four cups, 25℃), filter the material for use;

[0052] Step 2: Prepare alkyd resin: as shown in Table 1, mix soybean oil, linseed oil and glycerin into the reactor, heat to about 120°C, add lithium hydroxide, continue to heat up to 240°C-250°C, keep for 1 hour-3 Hours until the alcoholysis is clear (by alcoholysis: 95% ethanol = 1:3), cool down, put in phthalic a...

Embodiment 2

[0057] Synthesis of acrylic modified alkyd-epoxy hybrid resin:

[0058] Step 1: Prepare epoxy ester: as shown in Table 2, put epoxy resin E-20, soybean oil acid, tung oleic acid, linoleic acid and zinc oxide into the reactor, add 40 kg of reflux xylene, and heat to 180°C-200 Measure the acid value and viscosity at ℃ for 4 hours. When the acid value is less than or equal to 10mgKOH / g, it is the end of the reaction. Discharge the material to the diluting kettle. While cooling, dilute with xylene until the solid content is (50±1)%. Adjust the viscosity to 100s-250s, filter for use;

[0059] Step 2: Preparation of alkyd resin: as shown in Table 2, mix soybean oil, linseed oil and glycerin into the reactor, heat to about 120°C, add lithium hydroxide, continue to heat up to 240°C-250°C, keep warm for about 1h until alcohol Decompose thoroughly (by alcoholysis: 95% ethanol=1: 3), cool down, put in phthalic anhydride and 40kg reflux xylene, keep at 170℃-190℃ for 4 hours-5h, start to detec...

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 pulverized by a sand mill to a fineness of Below 25μm, add cross-linking agent, solvent and auxiliary agent and stir evenly. After passing the inspection, filter, measure and package.

[0067] Table 3 Primer ingredients list (weight percentage)

[0068]

[0069] Those skilled in the art can choose the type and dosage of the suitable drier according to actual needs and the guidance of textbooks or experimental 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 choose the type and dosage of the suitable anti-skinning agent according to actual needs and the guidance of textbooks or experimental ma...

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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 formed by the hybridization of acrylic modified alkyd resin and epoxy ester, and a coating using the resin as the main film-forming substance. Background technique [0002] According to the production method of traditional mirrors, the metal reflective layer material can be divided into two categories, namely silver mirrors and aluminum mirrors. With the development of science and technology, decorative mirrors coated with other colors of metals have appeared in recent years and are collectively called color mirrors. Traditionally, in the mirror manufacturing industry, the coatings used in the mirror line with curtain spray construction are collectively referred to as mirror back paint, which can be divided into: silver mirror back paint, aluminum mirror back paint and glass paint according to the substrate. [0003] Silver mirrors are divided into copper-silver mirrors and copper-free mirrors....

Claims

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Application Information

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Patent Type & Authority Patents(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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