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Alcohol water-soluble modified polyester ink resin and preparation method thereof

A technology for modifying polyester and ink resin, which can be used in ink, household utensils, applications, etc. It can solve the problems of unstable storage and resistance to hydrolysis of water-soluble polyester, and achieve good hydrolysis resistance and storage stability. Good focus and strong color development

Active Publication Date: 2015-07-22
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Generally speaking, the water-soluble polyester prepared by this type of method will have disadvantages such as unstable storage and intolerance to hydrolysis.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) 4kg of oxalic acid, 6kg of 1,2-cyclohexanedicarboxylic anhydride, 14kg of 1,3-propanediol, 16kg of pentanediol, 2kg of dimethyl terephthalate-2-sodium sulfonate and Put 0.1kg of tetrabutyltin into the reaction kettle, pass nitrogen gas, start the reaction from room temperature to 140°C, then raise the temperature to 210°C at 5°C / hour, continue the heat preservation reaction for 5 hours, and then cool to 70°C;

[0028] (2) add 2kg polyethylene glycol, 0.5kg malonic acid, 1.5kg dodecanedioic acid and 2.3kg ethylenediamine, 1.5kg dimethylol propionic acid in the reactor of step (1), then with Heat up to 230°C at 5°C / hour, add 0.05kg of phosphoric acid and 0.05kg of phosphorous acid after 3 hours of heat preservation reaction, turn on the vacuum pump, gradually increase the vacuum until the vacuum degree is ≤ -0.095MPa, and continue the heat preservation reaction until the acid value of the resin is At 0.5mgKOH / g, cool the resin to 70°C to obtain a modified polyester; ...

Embodiment 2

[0031] (1) 12kg of malonic acid, 8kg of 2,3-naphthalene dicarboxylic acid, 9kg of 2-methylpropanediol, 11kg of 1,2,4-trimethyl-1,6-hexanediol, 4.5kg Diethylene glycol terephthalate-2-potassium sulfonate, 1.5kg bishydroxyethyl isophthalate-5-sodium sulfonate, 0.025kg dibutyltin oxide, 0.03kg dihydrogen trioxide Put antimony into the reaction kettle, feed nitrogen, start the reaction from room temperature to 150°C, then raise the temperature to 215°C at 10°C / hour, continue to keep warm for 4 hours, then cool to 90°C;

[0032](2) Add 2kg polypropylene glycol, 0.5kg tetrahydrofuran-oxypropylene copolymerized glycol, 1.5kg succinic acid, 0.5kg cyclohexanedicarboxylic acid and 0.7kg of 1,2-propanediol in the reactor of step (1) Amine, 1.3kg dicyclohexylmethane-4,4'-diamine, 0.935kg dimethylolbutanoic acid, 1kg dimethylolpropionic acid, then heat up to 250℃ at 10℃ / hour, keep warm for 2 hours Add 0.005kg methyl phosphate and 0.005kg phosphinic acid, turn on the vacuum pump, gradually...

Embodiment 3

[0035] (1) Mix 20kg of methylhexahydrophthalic anhydride, 10kg of sulfophthalic acid, 8kg of ethylene glycol, 2kg of 2,2-dimethyl-1,3-propanediol, 4kg of m- Sodium phthalic acid-5-sulfonate and 0.01kg of stannous octoate were put into the reaction kettle, nitrogen gas was introduced, the temperature was raised from room temperature to 150°C to start the reaction, and then the temperature was raised to 220°C at 15°C / hour, and the reaction was continued for 6 hours After cooling to 80°C;

[0036] (2) Add 3kg polytetrahydrofuran diol, 2kg glutaric acid and 2.685kg of 1,3-propylenediamine, 2kg dimethylolpropionic acid to the reactor of step (1), then heat up at 15°C / hour to 270°C, add 0.055kg dimethyl phosphate after 4 hours of heat preservation reaction, turn on the vacuum pump, gradually increase the vacuum degree until the vacuum degree ≤ -0.095MPa, continue heat preservation reaction until the acid value of the resin is 0.6mgKOH / g, cool Resin to 60°C to obtain modified polyes...

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PUM

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Abstract

The invention discloses an alcohol water-soluble modified polyester ink resin and a preparation method thereof. The alcohol water-soluble modified polyester ink resin is prepared through the reaction of the following raw materials in parts by weight: 10-30 parts of dibasic acid I and / or dicarboxylic acid anhydrides, 10-30 parts of dihydric alcohol, 2-10 parts of a hydrophilic component I, 0.01-0.1 part of a catalyst, 2-15 parts of polyether glycol, 2-15 parts of dibasic acid II, 2-15 parts of diamine, 1-10 parts of a hydrophilic component II, 0.01-0.1 part of a stabilizer, 20-30 parts of an alcohol solvent, 20-30 parts of deionized water and 0.5-10 parts of a pH value regulator. Through the selection and constitutive modification of the raw materials, the prepared alcohol water-soluble modified polyester ink resin disclosed by the invention has good hydrolysis resistance and storage stability. The alcohol water-soluble modified polyester ink resin has the advantages that the hydrophilic functional groups are uniform in distribution, the molecular weight of resin is moderate, the re-dissolving performance is good, the color strength is high, the adhesive force on substrates is good, the film forming strength is high, and the alcohol water-soluble modified polyester ink resin belongs to new-generation environmental-friendly ink resin.

Description

technical field [0001] The invention belongs to the technical field of ink resin preparation, and in particular relates to an alcohol water-soluble modified polyester ink resin and a preparation method thereof. Background technique [0002] The currently developed water-based inks generally use maleic rosin resin, polyacrylic resin and modified acrylic emulsion as binders. The water-based ink prepared by using these resins usually has the disadvantages of slow drying speed, poor water resistance and low temperature resistance. Therefore, the development of water-based ink resins with better comprehensive performance is an important direction for the current development of water-based inks. [0003] Polyester is a kind of polymer resin prepared by esterification or transesterification of polybasic acid (ester) and polyol. Water-soluble polyester is to introduce hydrophilic groups into the polyester chain to make it hydrophilic. sex. At present, water-soluble polyester is w...

Claims

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Application Information

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IPC IPC(8): C08G63/688C09D11/104
Inventor 王旭朋宋延林杨明刘云霞金小玲秦明明
Owner INST OF CHEM CHINESE ACAD OF SCI
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