A kind of water dispersion paint prepared with pet waste and soybean oil acid

A technology of dispersion and soybean oil, which is applied in the direction of coating, etc., to achieve the effect of improving the hydrolysis stability of ester bonds, reducing pollution and high hardness

Active Publication Date: 2018-12-21
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned patents, alkyd resins are prepared by using small molecule alcohols and acids. At present, there is no alkyd water-dispersed alkyd resin with a core-shell structure that uses polyester PET waste and soybean oil as the main raw materials, and contains acrylates and other raw materials. body paint report

Method used

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  • A kind of water dispersion paint prepared with pet waste and soybean oil acid
  • A kind of water dispersion paint prepared with pet waste and soybean oil acid
  • A kind of water dispersion paint prepared with pet waste and soybean oil acid

Examples

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Effect test

Embodiment 1

[0024] ①Put 140 grams of polyester PET waste or waste polyester PET bottles (cut into small pieces of about 1 square centimeter), 7.5 grams of ethylene glycol, 26 grams of trimethylolpropane, 37 grams of glycerin, and 0.03 grams of zinc acetate into the container In the four-necked reaction flask with thermometer, stirrer, reflux condenser and inert gas inlet, raise the temperature to 180°C until most of the material melts, start stirring, and perform degradation reaction at 200-250°C for 3-4 hours until the softening point drops to 35 At -45°C, distill free alcohol under reduced pressure, then add 102 grams of soy oleic acid, 7.0 grams of phthalic anhydride, and 7.0 grams of partial anhydride to carry out esterification reaction at 170°C. When the acid value is 15-20㎎KOH / g, cool down to A mixed solution of 16 grams of acrylic acid, 26 grams of methyl methacrylate and 1.6 grams of benzoyl peroxide was added dropwise at 110°C. After 2 hours of dripping, the reaction was carried...

Embodiment 2

[0027] ① Put 140 grams of polyester PET waste or waste polyester PET bottles (cut into small pieces of about 1 square centimeter), 17.5 grams of ethylene glycol, 36 grams of neopentyl glycol, 17 grams of glycerin, and 0.03 grams of zinc acetate into a thermometer equipped with , stirrer, reflux condenser, and a four-necked reaction flask with inert gas inlet, raise the temperature to 180°C until most of the material melts, start stirring, and perform a degradation reaction at 200-250°C for 3-4 hours until the softening point drops to 35- At 45°C, distill the free alcohol under reduced pressure, then add 95 grams of soy oleic acid, 14.0 grams of phthalic anhydride, and 7.0 grams of glycidyl tert-carbonate for esterification reaction at 170°C. When the acid value is 15-20㎎KOH / g, The temperature was lowered to 110° C. and a mixed solution of 16 grams of acrylic acid, 26 grams of styrene and 1.6 grams of benzoyl peroxide was added dropwise. After 2 hours of dripping, the reaction wa...

Embodiment 3

[0030] ① 140 grams of polyester PET waste or waste polyester PET bottle (cut into small pieces of about 1 square centimeter), 12.5 grams of ethylene glycol, 19 grams of neopentyl glycol, 26 grams of trimethylolpropane, 13 grams of glycerin, Put 0.03 grams of zinc acetate into a four-necked reaction flask equipped with a thermometer, agitator, reflux condenser and inert gas inlet, raise the temperature to 180°C until most of the material melts, start stirring, and carry out the degradation reaction at 200-250°C for 3-4 hours , when the softening point drops to 35-45°C, distill the free alcohol under reduced pressure, then add 102 grams of soybean oil, 7.0 grams of maleic anhydride, and 7.0 grams of partial anhydride to carry out esterification reaction at 170°C, and the acid value is 15 -20㎎KOH / g, lower the temperature to 110°C and add dropwise a mixed solution of 16 grams of methacrylic acid, 16 grams of styrene, 10 grams of butyl acrylate and 1.6 grams of benzoyl peroxide. Af...

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Abstract

The invention discloses an aqueous dispersion coating prepared by adopting a PET waste material and soya oil acid. The aqueous dispersion coating is prepared from the following ingredients in percentage by weight: 30-60% of aqueous dispersion prepared by adopting a PET waste material and soya oil acid, 5-30% of a water-based color paste, 0-10% of an amine neutralizer, 0-20% of a cosolvent, 30-60% of distilled water and 5-20% of other addition agents. The aqueous dispersion coating is prepared through the following steps: mixing the ingredients; adopting a medium speed blunger for stirring. The aqueous dispersion coating is mainly used for surface coating of woodware, can enhance storage stability of a water-borne alkyd coating, and has the advantages of being quick-drying, high in hardness and excellent in decoration effect; the aqueous dispersion coating is adopted to replace a solvent-based alkyd resin coating, so that pollution of a solvent to the atmospheric environment is reduced.

Description

technical field [0001] The invention relates to an alkyd aqueous dispersion coating with a core-shell structure, which is mainly made of PET waste and soybean oil and modified by acrylates, and a preparation method thereof. Background technique [0002] Alkyd resin is one of the earliest developed, largest and most widely used varieties of paint synthetic resins. At present, solvent-based alkyd resin coatings are widely used on the surface of woodware; solvent-based alkyd resin coatings are composed of alkyd resins as matrix resins, pigments and fillers, driers, and solvents. However, since solvent-based alkyd resin coatings contain a large amount of organic solvents, they must be diluted with organic solvents during use; these solvents are volatilized into the atmosphere during construction, which has a serious impact on the health of construction workers and the ecological environment. Therefore, the research on acrylic modified alkyd aqueous dispersion coatings is attrac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/01C08F220/06C08F220/18C08F220/14C08F212/08C08G63/21C08G63/52C09D151/08C09D7/40
Inventor 吴津成陈玉斌魏超张剑飞
Owner 中昊北方涂料工业研究设计院有限公司
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