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Paper made through AKD modified nanometer silica, and preparation method thereof

A nano-silicon dioxide, modified technology, applied in the field of filled paper

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

[0008]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 nanometer silica, and preparation method thereof
  • Paper made through AKD modified nanometer silica, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A kind of paper made by AKD modified nano silicon dioxide is prepared according to the following steps:

[0030] (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;

[0031] (2) Put AKD with a concentration of 6% in ethanol, add nano-silica and disperse it in the AKD-ethanol solution according to the ratio of nano-silica:AKD=1:1, and obtain AKD-ethanol containing nano-silica solution, the filter paper impregnated with aluminum sulfate described in step (1), was pulled and dipped several times in the ethanol solution of AKD-nano-silicon dioxide; after that, it was air-dried for 24 hours to obtain.

Embodiment 2

[0033] A kind of paper made by AKD modified nano silicon dioxide is prepared according to the following steps:

[0034] (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 10% in ethanol, add nano-silica in the ratio of nano-silica: AKD=1:4, disperse in AKD-ethanol solution, and oscillate for 8 minutes to obtain AKD-ethanol solution containing nano-silica, 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.

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Abstract

The present invention relates to paper made through AKD modified nanometer silica. 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 6-10% to ethanol, adding nanometer silica according to a ratio of the nanometer silica to the AKD of 1:1-1:4, dispersing into the AKD-ethanol solution to obtain the AKD-ethanol solution containing the nanometer silica, carrying out pulling dipping on the filtration paper obtained in the step (1) in the AKD-nanometer silica 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 present invention involves a piece of paper that is filled, especially a paper and preparation method made by AKD modified nano -nanotoxic silica. Background technique [0002] AKD, Chinese name: alkyl ketone di polyette, English name: alkylketenedimmer.AKD is an unsaturated lattone. The product is wax -like solid with insoluble water. The melting point is about 51-52 ° C.The AKD for papermaking adhesives must be made into emulsion. The particle size of its products is about O.5 to 2 μm, the lotion is white, and it is easy to hydrolyze, so the general storage period is generally short, only 3 to 6 months.At present, due to the development of synthetic and emulsification technology, the solid content of AKD lotion can reach 40%or higher, and its hydrolysis and migration tendency is greatly restricted.As a reactive neutrophil, it is mainly used as the inner gum of copper -sheet paper, copy paper, archive paper, dictionary paper, and high -quality writing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/68D21H17/69
Inventor 刘瑾
Owner 刘瑾
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