Paper made through stearic acid modified nanometer silica, and preparation method thereof

A technology of nano-silica and stearic acid, which is applied in the field of paper for filling and papermaking

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

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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 stearic acid modified nanometer silica, and preparation method thereof
  • Paper made through stearic acid modified nanometer silica, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A kind of paper made of stearic acid modified nano silicon dioxide, 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 stearic acid with a concentration of 6% in ethanol, add nano silicon dioxide in the ratio of nano silicon dioxide: stearic acid = 1:1, and disperse in stearic acid-ethanol solution to obtain nano Stearic acid-ethanol solution of silicon oxide, the filter paper impregnated with aluminum sulfate as described in step (1), pulled and dipped in the ethanol solution of stearic acid-nanometer silicon dioxide for several times; after that, air-dried for 24 hours , that is.

Embodiment 2

[0033] A kind of paper made of stearic acid modified nano silicon dioxide, 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 Dry the number at C; (2) put stearic acid with a concentration of 10% in ethanol, add nano silicon dioxide and disperse it in the stearic acid-ethanol solution according to the ratio of nano silicon dioxide: stearic acid = 1:4 In the process, ultrasonically oscillate for 8 minutes to obtain a stearic acid-ethanol solution containing nano-silica, and use a paint scraper to coat the prepared stearic acid-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 stearic acid 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 stearic acid with a concentration of 6-10% to ethanol, adding nanometer silica according to a ratio of the nanometer silica to the stearic acid of 1:1-1:4, dispersing into the stearic acid-ethanol solution to obtain the stearic acid-ethanol solution containing the nanometer silica, carrying out pulling dipping on the filtration paper obtained in the step (1) in the stearic acid-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 invention relates to a paper made with filling, in particular to a paper made of stearic acid-modified nano silicon dioxide and a preparation method thereof. Background technique [0002] Stearic acid, English name: Stearic Acid Alias: octadecanoic acid, octadecanoic acid, fatty wax acid, is a kind of high-grade saturated fatty acid, pure product is white soft flakes with luster. Relative density 0.9408 (20°C), melting point 69~70°C, boiling point 383°C, refractive index 1.4299 (80°C), industrial product is white or yellowish granular, a mixture of stearic acid and palmitic acid, and contains a small amount of oil Sour, slightly buttery smell. Slightly soluble in cold water, easily soluble in benzene, toluene, chloroform, carbon tetrachloride, carbon disulfide, amyl acetate, etc., also soluble in ethanol and acetone. Stearic acid itself has a lubricating effect and is often used as a hydrophobic agent. When the paper is modified, it can endow the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/40D21H27/08
Inventor 扈晓楠
Owner 扈晓楠
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