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Multi-active functional group coating fortifier and preparing method thereof

A technology of active functional groups and reinforcing agents, which is applied in the direction of water repellent addition, fiber raw material treatment, textiles and papermaking, etc., can solve the problems of affecting cross-linking performance, coating storage performance, limited application, high cost, etc., and achieve excellent wet friction resistance, Effects of paper quality improvement and cost reduction

Active Publication Date: 2016-08-03
江苏三瑞生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glyoxal resin has low cost, excellent water resistance and storage stability, and the wet and dry nap strength of coated paper is good. However, due to the disproportionation reaction of glyoxal in alkaline environment, its crosslinking performance and storage of coatings are affected. Performance, not suitable for use at high pH, ​​limiting its application
PAPU resin coated paper has high dry and wet nap strength, but slow aging and high cost

Method used

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  • Multi-active functional group coating fortifier and preparing method thereof
  • Multi-active functional group coating fortifier and preparing method thereof
  • Multi-active functional group coating fortifier and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 1 mole of propylene glycol, 2.2 moles of acrylic acid, 8g of p-toluenesulfonic acid catalyst, 3g of pre-activated superabsorbent resin, raise the temperature to 105-110°C, and start the esterification and dehydration reaction for about 6 hours. When the theoretical value is reached, the temperature is lowered to 50° C., the solvent isopropanol is added, the catalyst TS-β molecular sieve is added, and tert-butyl hydroperoxide is added dropwise (the amount added is 1.5 times the mole number of acrylic acid). After the dropwise addition, keep it warm for 5 hours, let it stand still, separate the unreacted water phase, evaporate the solvent phase at 120°C, remove the insoluble matter by filtration, and finally obtain the target substance.

Embodiment 2

[0033] Add 1 mole of diethylene glycol, 2.5 moles of acrylic acid, 3g of phosphotungstic acid, 120g of toluene, and raise the temperature to 110-120°C to start the esterification and dehydration reaction. The reaction lasts about 5 hours. When the theoretical value is reached, cool down to 35°C, add distilled toluene, water, surfactant CTAB, catalyst quaternary ammonium phosphotungstic acid, and drop hydrogen peroxide (1.2 times the mole number of enoic acid). After the dropwise addition, keep warm for 5 hours, separate the unreacted water phase, distill the product again, distill out the solvent phase at 120-130°C, remove the insoluble matter by filtration, and finally obtain the target substance.

Embodiment 3

[0035] Add 1 mole part of diethylene glycol to the reaction kettle, add 2.5 mole parts of undecylenic acid, then add 3 g of immobilized phosphotungstic acid, 120 g of xylene as a solvent, raise the temperature to 110 ° C, and start the esterification and dehydration reaction of about 6h. Cool down to 50°C, add the water and xylene mixture that came out before, and add 8 g of catalyst phosphotungstic heteropolyacid quaternary ammonium salt, add OP-10, and dropwise add hydrogen peroxide (2 times the mole number of enoic acid). After the dropwise addition, keep warm for 6 hours, then stand still to separate the water phase, evaporate the solvent phase at 140-150°C, remove insoluble matter by filtration, and finally obtain the target substance.

[0036] Above-mentioned embodiment 1~3 obtains the performance test result of product as following table:

[0037]

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PUM

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Abstract

The invention discloses a multi-active functional group coating fortifier and a preparing method thereof.Unsaturated acid and polyhydric alcohols are used as raw materials to prepare polyol ester under the action of a water-carrying agent and a catalyst, then the double bond of unsaturated acid is oxidized by means of an oxidizing agent, and finally the product is purified to obtain a multi-active functional group composition.The product containing multiple epoxy functional groups is prepared with the one-pot method through esterification reaction of unsaturated acid and polyhydric alcohols and oxidization of the double bond of unsaturated acid.The product is high in crosslinking group density and lower in usage amount after being applied to paper coating compared with conventional AZC, PAPU and aldehydes coating water-resistant fortifiers, however, paper has more excellent wet friction resistance, strength and water resistance, and therefore the product can be used for high-end paper to improve paper quality remarkably.

Description

technical field [0001] The invention relates to a novel coating enhancer used in the field of coated paper or food packaging paper in the papermaking industry and a preparation method thereof, in particular to a multi-active functional group coating enhancer and a preparation method thereof. Background technique [0002] Coated paper needs to have a certain water resistance to meet the requirements of printing and food packaging. Part of the acquisition of water resistance is sizing in the pulp or on the surface during base paper production. The most direct way is to add a reinforcing agent to the coating to reduce the water solubility of pigments, adhesives and various water-soluble components after drying into a film. , Improve the wet friction resistance, dry and wet strength and printing adaptability of coated paper, reduce the phenomenon of lint and powder shedding of coated paper in the printing process, and obtain excellent printed matter. [0003] At present, common...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/14D21H21/16C07D301/12C07D303/48
CPCC07D301/12C07D303/48D21H21/14D21H21/16
Inventor 叶洲张仿仿
Owner 江苏三瑞生物技术有限公司
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