Cylinder sticking agent for household paper machine and preparation method of cylinder sticking agent

A technology of household paper and cylinder sticking agent, which is applied in the field of sticking agent for papermaking, can solve the problems of hard film layer, insufficient re-wetting, and poor film-forming ability, and achieves good film-forming and good re-wetting. , the effect of feeling good

Active Publication Date: 2021-04-23
JIANGSU FEYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: To provide a cylinder sticking agent for tissue paper machine and its preparation method, so as to solve the exi

Method used

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  • Cylinder sticking agent for household paper machine and preparation method of cylinder sticking agent
  • Cylinder sticking agent for household paper machine and preparation method of cylinder sticking agent
  • Cylinder sticking agent for household paper machine and preparation method of cylinder sticking agent

Examples

Experimental program
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Effect test

Embodiment 1

[0054] The chitosan (degree of deacetylation is 85%) that takes by weighing 100g joins 500ml mass fraction and is in the acetic acid solution of 2%, dissolves 1 hour under stirring, forms homogeneous solution; 8g maleic anhydride is dissolved in the 50ml acetone, After stirring evenly, add it into the homogeneous solution, react at room temperature for 14 hours, purify the product with acetone, and dry it in a vacuum constant temperature oven to obtain the modified chitosan. Add 200g of deionized water and 40g of the modified chitosan prepared in front of the reaction flask, adjust the pH at 5.5 with 2% acetic acid with a mass fraction, add 0.05g of chelating agent EDTA-2Na, 1g of chain transfer agent sodium hypophosphite , into N 2 Deoxygenation for 30 minutes; then raise the temperature to 65-80°C, add dropwise 8g of hydrophilic silicone monomer and 20g of 0.4% initiator ammonium persulfate solution at the same time, and keep the reaction at 85°C for 1 hour after adding drop...

Embodiment 2

[0057] Add 6.8 parts of diethylenetriamine and 8.5 parts of adipic acid into the reaction flask, stir evenly, raise the temperature to 150°C, continuously distill the water generated by the reaction, and continue to heat up to 165°C after reacting for 1 hour, and continue the reaction for 4 hour, then add 6 parts of water to terminate the reaction, and finally add 7 parts of dilution water to obtain a polyamide polyamine polymer with a solid content of 50%. Add 23.4 parts of polyamide polyamine polymer and 8 parts of maleic anhydride acylated chitosan grafted silicone copolymer solution into the reaction flask, mix well, add 17 parts of water to adjust the solid content, and then drop 1.5 Parts of epichlorohydrin, heated up to 60°C and reacted for 2-2.5 hours, after reacting at 60°C for 1.5 hours, take samples to measure the viscosity every 15 minutes, add water to terminate the reaction when the viscosity of the solution reaches 250-400mPa.s, and obtain the reactant . Cool t...

Embodiment 3

[0059] Add 10 parts of triethylenetetramine and 10 parts of adipic acid into the reaction flask, stir evenly, raise the temperature to 150°C, and continuously distill off the water generated by the reaction. After reacting for 1 hour, continue to heat up to 175°C, and continue the reaction for 2 hour, then add 5 parts of water to terminate the reaction, and finally add 10 parts of dilution water to obtain a polyamide polyamine polymer with a solid content of 50%. Add 25 parts of polyamide polyamine polymer and 4 parts of maleic anhydride acylated chitosan grafted silicone copolymer solution into the reaction flask, mix well, add 17 parts of water to adjust the solid content, and then drop 1.4 Parts of epichlorohydrin, heated up to 65°C and reacted for 2-2.5 hours, after reacting at 65°C for 1.5 hours, take samples to measure the viscosity every 15 minutes, add water to terminate the reaction when the viscosity of the solution reaches 300-450mPa.s, and obtain the reactant . Co...

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Abstract

The invention discloses a cylinder sticking agent for a household paper machine and a preparation method of the cylinder sticking agent, and belongs to the technical field of cylinder sticking agents for papermaking. The preparation method comprises the steps of modifying chitosan; preparing a modified chitosan grafted organic silicon copolymer; preparing a polyamide polyamine polymer; enabling the modified chitosan grafted organosilicon copolymer to react with a polyamide polyamine polymer and epoxy chloropropane; and adjusting auxiliary parameters. According to the invention, chitosan has a vinyl double bond after being modified by maleic anhydride, free radical polymerization can be carried out on vinyl and organic silicon, so that the vinyl and the organic silicon are successfully combined together. In order to utilize the unique smoothness of siloxane and further introduce a hydrophilic group, the organic silicon is grafted through modification, so that the moisture retention performance of the product and the hardness of the film reach the better level, the product is better combined with fibers, and the hand feeling of finished paper is softer.

Description

technical field [0001] The invention belongs to the technical field of cylinder sticking agents for papermaking, in particular to a cylinder sticking agent for household paper machines and a preparation method thereof. Background technique [0002] As we all know, in the production of household paper, it is usually necessary to use the creping process to endow the paper with good softness, bulk and excellent hand feeling, and the paper needs to be used in the process of drying and creping in the Yankee dryer. Cylinder sticking agent, stripper and improver. Among them, the characteristics of the cylinder sticking agent play a vital role in the establishment of a good coating in the dryer section of the tissue machine and the normal operation of the paper machine. The cylinder sticking agent not only plays an important role in the creping process, but also protects the drying cylinder and scraper, so that the service life of the drying cylinder and scraper can be extended. A...

Claims

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Application Information

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IPC IPC(8): C08G81/02C08F251/00C08G69/26C09D187/00D21F5/02
CPCC08G81/028C08F251/00C08G69/26C09D187/005D21F5/02C08F230/085
Inventor 丁锦华何国锋王勤魏星光罗强樊王佳
Owner JIANGSU FEYMER TECH
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