A kind of water-based epoxy modified water-based polyurethane ink link material and preparation method thereof

A water-based polyurethane and water-based epoxy technology, used in inks, household appliances, applications, etc., can solve the problems of water resistance to be improved, slow drying speed, paper shrinkage, etc., and achieve low cost, fast drying speed and good adhesion. Effect

Active Publication Date: 2021-09-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of some problems existing in the water-based ink in the prior art: such as slow drying speed, water resistance needs to be improved, easy to cause paper shrinkage and other problems, the purpose of the present invention is to provide a printing ink with good adhesion, fast drying speed and wear resistance. Epoxy polyurethane binder for water-based inks with good quality, high gloss, and small volume shrinkage during curing

Method used

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  • A kind of water-based epoxy modified water-based polyurethane ink link material and preparation method thereof
  • A kind of water-based epoxy modified water-based polyurethane ink link material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0043] The epoxy polyurethane linking material is prepared from the following raw material components and proportioning (by weight): 63 parts of water-based epoxy resin, 27 parts of polyurethane prepolymer, and 10 parts of end-capping agent; wherein the polyurethane prepolymer consists of Prepared from the following raw material components and proportions (by weight): 30 parts of toluene diisocyanate, 60 parts of pentaerythritol diacrylate, 5 parts of 1,4-butanediol, and 5 parts of dimethylol propionic acid .

[0044] Its preparation method is:

[0045] (1) Add pentaerythritol diacrylate 1000 into a four-necked flask with a condenser, heat it, and slowly add toluene diisocyanate dropwise after the raw materials are completely melted. After the dropwise addition, react at 90°C for 2 hours to obtain an intermediate product.

[0046] (2) Mix the intermediate product with dimethylolpropionic acid, dissolve it in acetone, react at 60°C for 2h, then add 1,4-butanediol for mixing, a...

Embodiment 2

[0052] The epoxy polyurethane linking material is prepared from the following raw material components and proportioning (by weight): 75 parts of water-based epoxy resin, 15 parts of polyurethane prepolymer, and 10 parts of end-capping agent; wherein the polyurethane prepolymer is made of Prepared from the following raw material components and proportions (by weight): 35 parts by weight of toluene diisocyanate, 55 parts by weight of polycaprolactone diol 2000, 8 parts by weight of 1,4-butanediol, dihydroxy 2 parts by weight of methylpropionic acid.

[0053] Its preparation method is:

[0054] (1) Add polycaprolactone diol 2000 into a four-necked flask with a condenser, heat it, and slowly add toluene diisocyanate dropwise after the raw materials are completely melted. After the dropwise addition, react at 90°C for 2 hours to obtain mid product.

[0055] (2) Mix the intermediate product with dimethylolpropionic acid, dissolve it in isopropanol, react at 80°C for 2h, then add 1...

Embodiment 3

[0061] The epoxy polyurethane linking material is prepared from the following raw material components and proportioning (by weight): 63 parts of water-based epoxy resin, 27 parts of polyurethane prepolymer, and 10 parts of end-capping agent; wherein the polyurethane prepolymer consists of Prepared from the following raw material components and proportions (by weight): 45 parts by weight of toluene diisocyanate, 40 parts by weight of polycarbonate diol, 13 parts by weight of 1,4-butanediol, dimethylol 2 parts by weight of propionic acid.

[0062] Its preparation method is:

[0063] (1) Add polycarbonate diol into a four-necked flask with a condenser, heat it, and slowly add toluene diisocyanate dropwise after the raw materials are completely melted, and react at 90°C for 2 hours to obtain an intermediate product.

[0064] (2) Mix the intermediate product with dimethylolpropionic acid, dissolve it in butanone, react at 80°C for 2h, then add 1,4-butanediol and mix, react at 80°C...

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Abstract

The invention discloses a water-based epoxy modified water-based polyurethane ink linking material and a preparation method thereof. The linking material is obtained by reacting a water-based epoxy resin, a polyurethane prepolymer and an end-capping agent; the specific preparation process is to mix polyester diol with toluene Addition polymerization of diisocyanate to obtain an intermediate; the intermediate reacts with dimethylol propionic acid and 1,4-butanediol in turn to obtain a polyurethane prepolymer; the polyurethane prepolymer and water-based epoxy After the resin undergoes grafting reaction, add an end-capping agent to end the end, and then obtain a water-based epoxy polyurethane ink binder with excellent performance. It is used in inks to show short drying time, excellent water resistance, high gloss, and good printing adaptability. And other advantages, especially suitable for printing substrates such as PVC, PET, aluminum foil, etc.

Description

technical field [0001] The invention relates to an epoxy polyurethane linking material for water-based ink, in particular to a water-based polyurethane linking material modified by water-based epoxy resin and a preparation method thereof. It belongs to the technical field of water-based ink. Background technique [0002] Today in the 21st century, the development of the printing industry has become an important symbol to measure the modernization and industrialization of a country. However, while the printing industry continues to develop, the problem of pollution caused by people to the earth on which they live has also become more and more serious. The emission of organic compounds volatilized by light-solvent inks on the earth reaches hundreds of thousands of tons every year. Developed countries such as North America and Western Europe have promulgated relevant laws and regulations on environmental protection since 1970 and implemented them to effectively curb the disch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/67C08G18/12C08G18/58
CPCC08G18/12C08G18/58C08G18/675C09D11/102C08G18/6535
Inventor 王新龙夏新年杨鑫刘玉堂周江明
Owner CHINA PETROLEUM & CHEM CORP
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