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A kind of urea-formaldehyde resin wet strength agent and preparation method thereof

A technology of urea-formaldehyde resin and wet-strength agent, which is applied in the field of wet-strength agent and its preparation, can solve the problems of low wet-strength tensile strength, reduced strength, and affecting the use of paper, and achieve the effect of improving physical properties and expanding applications

Inactive Publication Date: 2016-01-13
江苏古沙农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At this stage, the most widely used wet strength agent in the paper industry is PAE wet strength agent. PAE wet strength agent has a wide range of pH applications and has good fixity. However, the paper with PAE wet strength agent The wet tensile strength of the paper is low, and its strength will be greatly reduced after the moisture content of the paper is too high, which affects the use of the paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A method for preparing a urea-formaldehyde resin wet strength agent, the preparation method comprising the following steps: (1) Setting the temperature of a high-temperature reaction tank at 80°C, and adding 13kg of urea-formaldehyde resin and hydroxyethyl acrylate to the high-temperature reaction tank after the temperature is constant 4kg for alkyd resin, 10kg for alkyd resin, use a turbine mixer for turbine stirring, and stir until uniform; (2) Add 3kg of glutaraldehyde, 11kg of methyl stearate polyoxyethylene ether, and propylene glycol into the high-temperature reaction tank If it is 6kg, use the turbine to stir and carry out turbine stirring, and the turbine stirs until it is uniform; (3) Slowly add deionized water to the high-temperature reaction tank to 88kg, and perform turbine stirring at the same time, and then turbine stir for 2 hours after adding water; (4) Lower the temperature of the high-temperature reaction tank to 60°C and then stir it with a turbine for...

Embodiment 2

[0014] A method for preparing a urea-formaldehyde resin wet strength agent, the preparation method comprising the following steps: (1) Setting the temperature of a high-temperature reaction tank at 85°C, and adding 15 kg of urea-formaldehyde resin and hydroxyethyl acrylate to the high-temperature reaction tank after the temperature is constant 3kg for alkyd resin, 7kg for alkyd resin, use a turbine mixer for turbine stirring, and stir until uniform; (2) Add 6kg of glutaraldehyde, 9kg of methyl stearate polyoxyethylene ether, and propylene glycol into the high-temperature reaction tank If it is 8kg, use the turbine to stir and carry out turbine stirring, and the turbine stirs until it is uniform; (3) Slowly add deionized water to the high temperature reaction tank to 94kg, and perform turbine stirring at the same time, and then turbine stir for 2 hours after adding water; (4) Lower the temperature of the high-temperature reaction tank to 60°C and then stir it with a turbine for ...

Embodiment 3

[0016] A method for preparing a urea-formaldehyde resin wet strength agent, the preparation method comprising the following steps: (1) Setting the temperature of a high-temperature reaction tank at 90°C, and adding 17kg of urea-formaldehyde resin and hydroxyethyl acrylate to the high-temperature reaction tank after the temperature is constant 3kg for alkyd resin, 5kg for alkyd resin, use a turbine mixer for turbine stirring, and stir until uniform; (2) Add 5kg of glutaraldehyde, 7kg of methyl stearate polyoxyethylene ether, and propylene glycol into the high-temperature reaction tank If it is 4kg, use the turbine to stir and carry out turbine stirring, and the turbine stirs until it is uniform; (3) Slowly add 91kg of deionized water to the high-temperature reaction tank, and perform turbine stirring at the same time, and then turbine stir for 2 hours after adding water; (4) Lower the temperature of the high-temperature reaction tank to 60°C and then stir it with a turbine for 3...

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PUM

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Abstract

The invention relates to a urea resin wet strength agent and a preparation method thereof. The urea resin wet strength agent is prepared from the following components in parts by weight: 13-17 parts of urea resin, 3-4 parts of hydroxyethyl acrylate, 5-10 parts of alkyd resin, 3-6 parts of glutaraldehyde, 7-11 parts of methyl stearate polyoxyethylene ether, 4-8 parts of propylene glycol, and 88-94 parts of deionized water. The preparation method of the urea resin wet strength agent disclosed by the invention comprises the following steps: high-temperature heating, mixing, and agitating. The prepared urea resin wet strength agent has the advantages that the tensile index and the wet tensile strength of a paper product still can be improved on the basis of low dosage, and the urea resin wet strength agent is wide in application range.

Description

technical field [0001] The invention relates to a wet strength agent and a preparation method thereof, in particular to a urea-formaldehyde resin wet strength agent with relatively high tensile index and wet strength tensile strength and a preparation method thereof. Background technique [0002] At this stage, the most widely used wet strength agent in the paper industry is PAE wet strength agent. PAE wet strength agent has a wide range of pH applications and has good fixity. However, the paper with PAE wet strength agent The wet tensile strength of the paper is low, and its strength will be greatly reduced after the moisture content of the paper is too high, which affects the use of the paper. [0003] Urea-formaldehyde resin wet strength agent is also a kind of wet strength agent widely used. The wet strength agent applied with urea-formaldehyde resin can also improve the tensile strength of paper, but the tensile strength of urea-formaldehyde resin wet strength agent wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/20C08G12/40
Inventor 邓强
Owner 江苏古沙农业科技发展有限公司