Paper made through AKD modified nanometer titanium dioxide, and preparation method thereof

A nano-titanium dioxide, modification 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

[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 nanometer titanium dioxide, and preparation method thereof
  • Paper made through AKD modified nanometer titanium dioxide, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of paper made by AKD modified nano-titanium dioxide is prepared according to the following steps:

[0029] (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;

[0030] (2) Put AKD with a concentration of 5% in ethanol, add nano-titanium dioxide in the ratio of nano-titanium dioxide: AKD=1:1, and disperse in AKD-ethanol solution to obtain AKD-ethanol solution containing nano-titanium dioxide, and step (1 ), the filter paper impregnated with aluminum sulfate described in ) was pulled and dipped several times in the ethanol solution of AKD-nano-titanium dioxide; after that, it was air-dried for 24 hours to obtain.

Embodiment 2

[0032] A kind of paper made by AKD modified nano-titanium dioxide is prepared according to the following steps:

[0033] (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 9% in ethanol, add nano-titanium dioxide in the ratio of nano-titanium dioxide: AKD=1:4, disperse in AKD-ethanol solution, and oscillate for 8 minutes to obtain nano-titanium dioxide. AKD-ethanol solution, use a paint scraper to coat the prepared AKD-ethanol solution on the surface of the filter paper, 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 titanium dioxide. 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 5-9% to ethanol, adding nanometer titanium dioxide according to a ratio of the nanometer titanium dioxide to the AKD of 1:1-1:4, dispersing into the AKD-ethanol solution to obtain the AKD-ethanol solution containing the nanometer titanium dioxide, carrying out pulling dipping on the filtration paper obtained in the step (1) in the AKD-nanometer titanium dioxide 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 paper made with filling, in particular to paper made with AKD modified nano-titanium dioxide 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 hi...

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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