Paper made through AKD modified sodium silicate, and preparation method thereof

A kind of sodium silicate and modification technology, applied in the paper made by AKD modified sodium silicate and its preparation field

Inactive Publication Date: 2016-04-20
刘瑾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007]The current paper pulp internal sizing agents mainly include rosin glue, reinforced rosin glue, dispersed rosin glue, petroleum resin glue, paraffin glue, etc. Among them, rosin sizing agent And petroleum resin sizing agents are mainly used in acidic papermaking, and the effect on filler modification is poor, so it is difficult to meet the requirements of industrial production

Method used

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  • Paper made through AKD modified sodium silicate, and preparation method thereof
  • Paper made through AKD modified sodium silicate, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] (1) First make aluminum sulfate into an aqueous solution with a mass concentration of 5%, impregnate the filter paper for 1 min, and place the filter paper at 100 o C under drying number;

[0029] (2) Put AKD with a concentration of 8% in ethanol, add sodium silicate in the ratio of sodium silicate:AKD=1:1 and disperse in AKD-ethanol solution to obtain AKD-ethanol solution containing sodium silicate. The filter paper impregnated with aluminum sulfate mentioned in the step (1) is pulled and soaked several times in the ethanol solution of AKD-sodium silicate; after that, it is air-dried for 24 hours to obtain the final product.

[0030] Example 2:

Embodiment 2

[0032] (1) First make aluminum sulfate into an aqueous solution with a mass concentration of 20%, impregnate the filter paper for 3 minutes, and place the filter paper at 105 o Drying number at C; (2) Put AKD with a concentration of 12% in ethanol, add sodium silicate in the ratio of sodium silicate: AKD=1:4 and disperse in AKD-ethanol solution, and ultrasonically oscillate for 8 minutes to obtain silicon-containing AKD-ethanol solution of sodium bicarbonate, the prepared AKD-ethanol solution is coated on the surface of the filter paper with a paint scraper, and the coating amount should be controlled at 8g / m 2 ; Afterwards, the impregnated filter paper was dried at 105° C. for 15 minutes in a constant-temperature blast drying oven to obtain a final product.

[0033] Experimental Materials

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Abstract

The present invention relates to paper made through AKD modified sodium silicate. The preparation method comprises: (1) preparing an aluminum sulfate aqueous solution with a concentration of 5-20%, dipping filtration paper in the solution for 1-3 min, drying the filtration paper at a temperature of 100-105 DEG C, and numbering; and (2) adding AKD with a concentration of 8-12% to ethanol, adding sodium silicate according to a ratio of the sodium silicate to the AKD of 1:1-1:4, dispersing into the AKD-ethanol solution to obtain the AKD-ethanol solution containing the sodium silicate, carrying out pulling dipping on the filtration paper obtained in the step (1) in the AKD-sodium silicate ethanol solution a plurality of times, and carrying out air drying for 24-48 h so as to obtain the product.

Description

technical field [0001] The invention relates to a paper after sizing and filling, in particular to a paper made by AKD modified sodium silicate and a preparation method thereof. Background technique [0002] AKD, Chinese name: alkyl ketene dimer, English name: alkylketenedimmer. AKD is an unsaturated lactone. The product is a waxy solid insoluble in water, with a melting point of about 51-52°C. The AKD used for papermaking sizing agent must be made into emulsion. The particle size of the product is about 0.5-2μm. The emulsion is white and easily hydrolyzed, so the general storage period is short, only 3-6 months. At present, due to the development of synthesis and emulsification technology, the solid content of AKD emulsion can reach 40% or higher, and its hydrolysis and migration tendency are greatly restricted. As a reactive neutral paper-making sizing agent, it is mainly used for internal sizing of copper plate base paper, copy paper, archive paper, dictionary paper and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/67D21H17/69
Inventor 刘瑾
Owner 刘瑾
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