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Papermaking auxiliary agent and production method thereof

A papermaking aid, a technology of carboxymethyl chitosan, which is applied in the field of papermaking, can solve the problems of difficult long-term preservation, complicated formula, easy to mold and the like, and achieves the effects of improving dry strength, simple technological process and reducing dosage.

Inactive Publication Date: 2016-08-17
商孝霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, many papers on the market have deficiencies, such as low strength, easy to mold, etc., and it is difficult to store them for a long time.
However, there are relatively few existing papermaking additives, and many formulas are more complicated and the cost is higher.

Method used

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  • Papermaking auxiliary agent and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 A papermaking aid was prepared from the following main raw materials (20kg each): 10 parts carboxymethyl chitosan, 6 parts polyacrylamide, 12 parts talc powder, 8 parts quartz powder, poly 3 parts of ethylene glycol, 1 part of lauryl ester, 2 parts of alkylphenol polyoxyethylene ether, 1 part of polyoxypropylene glycerol ether, 1 part of sodium benzoate, 2 parts of wood wax oil, 1 part of ammonium sulfate, hydrogen phosphate 2 parts of disodium and 3 parts of lactitol.

[0047] A preparation method of a papermaking aid, the steps are as follows:

[0048] (1) Put polyoxypropylene glyceryl ether and wood wax oil in a nitrogen atmosphere, stir at 76°C (stirring rate is 630 revolutions / min) for 2 hours, add water (the amount is polyoxypropylene glyceryl ether and wood wax oil) 4 times the mass), add lauryl alcohol ester and alkylphenol polyoxyethylene ether, mix at 58°C for 5 minutes, and cool to normal temperature;

[0049] (2) Mix carboxymethyl chitosan and quartz po...

Embodiment 2

[0055] Example 2 A papermaking aid was prepared from the following main raw materials (10kg each): 16 parts of carboxymethyl chitosan, 10 parts of polyacrylamide, 16 parts of talc powder, 18 parts of quartz powder, poly 5 parts of ethylene glycol, 4 parts of lauryl ester, 5 parts of alkylphenol polyoxyethylene ether, 4 parts of polyoxypropylene glycerol ether, 2 parts of sodium benzoate, 4 parts of wood wax oil, 2 parts of ammonium sulfate, hydrogen phosphate 3 parts of disodium and 6 parts of lactitol.

[0056] A preparation method of a papermaking aid, the steps are as follows:

[0057] (1) Put polyoxypropylene glyceryl ether and wood wax oil in a nitrogen atmosphere, stir at 94℃ (stirring rate is 720 rpm) for 4 hours, add water (the amount is polyoxypropylene glyceryl ether and wood wax oil) 6 times the mass), add lauryl alcohol ester and alkylphenol polyoxyethylene ether, mix at 65°C for 8 minutes, and cool to normal temperature;

[0058] (2) Mix carboxymethyl chitosan and quar...

Embodiment 3

[0064] Example 3 A papermaking aid was prepared from the following main raw materials (15kg each): 12 parts carboxymethyl chitosan, 7 parts polyacrylamide, 13 parts talc powder, 12 parts quartz powder, poly 3.5 parts of ethylene glycol, 2 parts of lauryl ester, 3 parts of alkylphenol polyoxyethylene ether, 2 parts of polyoxypropylene glycerol ether, 1.3 parts of sodium benzoate, 2.5 parts of wood wax oil, 1.3 parts of ammonium sulfate, hydrogen phosphate 2.3 parts of disodium and 4 parts of lactitol.

[0065] A preparation method of a papermaking aid, the steps are as follows:

[0066] (1) Put polyoxypropylene glyceryl ether and wood wax oil in a nitrogen atmosphere, stir at 82°C (stirring rate is 660 revolutions / min) for 2.5 hours, add water (the amount is polyoxypropylene glyceryl ether and wood wax oil) 4.5 times the mass), add lauryl alcohol ester and alkylphenol polyoxyethylene ether, mix at 60°C for 6 minutes, and cool to normal temperature;

[0067] (2) Mix carboxymethyl chi...

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Abstract

The invention discloses a papermaking auxiliary agent. The papermaking auxiliary agent is prepared from the following main raw materials in parts by weight: 10-16 parts of carboxymethyl chitosan, 6-10 parts of polyacrylamide, 12-16 parts of talcum powder, 8-18 parts of quartz powder, 3-5 parts of polyethylene glycol, 1-4 parts of 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate), 2-5 parts of alkylphenol ethoxylates, 1-4 parts of polyoxypropylene glycerol ether, 1-2 parts of sodium benzoate, 2-4 parts of vegetable wax oil, 1-2 parts of ammonium sulfate, 2-3 parts of disodium hydrogen phosphate and 3-6 parts of lactitol. The papermaking auxiliary agent disclosed by the invention adopts a simple process flow; and bad foams in a preparation process of paper pulp can be eliminated and the pulp is dispersed very well, so that paper sheets have very good tensile strength, elongation percentage, printing smoothness, whiteness, tearing strength and folding endurance.

Description

Technical field [0001] The invention relates to the technical field of papermaking, in particular to a papermaking aid and a preparation method thereof. Background technique [0002] The papermaking aid is a water-soluble linear polymer electrolyte formed by copolymerization of acrylamide and modifier. In the papermaking process, it can form bridges and loop bags with the dispersed phase of the paper pulp through various mechanical, physical and chemical actions, so that the fibers and fillers are intertwined to improve the strength of the paper. In addition, the polar groups of the auxiliary molecule, especially the cationic groups and the negative groups in the pulp microfibers and talcum powder, etc., form aggregates through adsorption and ring bag action and settle on the paper. In addition, the quaternary ammonium groups in the additives can reduce the surface tension of aggregates, fibers, and talc, and reduce the contact angle with water molecules, which makes it easier f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/06D21H21/14D21H17/66D21H17/53D21H17/25D21H17/68D21H17/06D21H17/35D21H17/60
CPCD21H21/06D21H17/06D21H17/25D21H17/35D21H17/53D21H17/60D21H17/66D21H17/68D21H21/14
Inventor 不公告发明人
Owner 商孝霞
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