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Carboxymethyl cellulose modified nanosilica-made paper

A technology of carboxymethyl cellulose and nano-silica, which is applied in the field of paper made by filling and papermaking

Active Publication Date: 2015-02-18
广东冠豪新材料研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010]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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  • Carboxymethyl cellulose modified nanosilica-made paper
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Examples

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Effect test

Embodiment 1

[0031] A kind of paper made of carboxymethyl cellulose modified nano silicon dioxide, prepared according to the following steps:

[0032] (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;

[0033] (2) Put carboxymethyl cellulose with a concentration of 6% in ethanol, add nano-silica and disperse it in carboxymethyl cellulose-ethanol solution according to the ratio of nano-silica: carboxymethyl cellulose = 1:1 In the process, the carboxymethyl cellulose-ethanol solution containing nano silicon dioxide is obtained, and the filter paper impregnated with aluminum sulfate described in step (1) is extracted in the ethanol solution of carboxymethyl cellulose-nano silicon dioxide. Dipping and soaking for several times; after that, air-dry for 24 hours to get it.

Embodiment 2

[0035] A kind of paper made of carboxymethyl cellulose modified nano silicon dioxide, prepared according to the following steps:

[0036] (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 carboxymethyl cellulose with a concentration of 10% in ethanol, add nano-silica and disperse it in carboxymethyl cellulose according to the ratio of nano-silica: carboxymethyl cellulose = 1:4 Carboxymethyl cellulose-ethanol solution containing nano silicon dioxide was obtained by ultrasonic oscillation for 8 min, and the prepared carboxymethyl cellulose-ethanol solution was coated on the surface of the filter paper with a paint scraper. Cloth, the coating amount should be controlled to 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 invention relates to carboxymethyl cellulose modified nanosilica-made paper which is prepared according to the following steps: (1) aluminum sulfate is firstly made into an aqueous solution with the mass concentration of 5-20%, filter paper is impregnated with the aqueous solution of aluminum sulfate for 1-3 min, and the filter paper is dried at 100-105 DEG C and then numbered; and (2) carboxymethyl cellulose with the concentration of 6-10% is added into ethanol, nanosilica is added and dispersed in the carboxymethyl cellulose-ethanol solution according to the nanosilica-to-carboxymethyl cellulose ratio of 1:1-1:4 so as to obtain a carboxymethyl cellulose-ethanol solution containing nanosilica, and the filter paper impregnated with aluminum sulfate from the step (1) undergoes dipping-coating in the ethanol solution of carboxymethyl cellulose-nanosilica for several times; and finally air-drying is carried out for 24-48h so as to obtain the carboxymethyl cellulose modified nanosilica-made paper.

Description

[0001] technical field [0002] The invention relates to paper made with filling, in particular to paper made with carboxymethyl cellulose modified nano silicon dioxide. Background technique [0003] Carboxymethyl cellulose is a carboxymethyl group substitution product of cellulose. According to its molecular weight or degree of substitution, it can be a completely soluble or insoluble polymer. The latter can be used as a weak acid cation exchanger to separate neutral or basic proteins. Carboxymethyl cellulose can form high-viscosity colloids and solutions, have the characteristics of adhesion, thickening, flow, emulsification and dispersion, shaping, water retention, protective colloid, film forming, acid resistance, salt resistance, suspension, etc., and is physiologically harmless Therefore, it is widely used in the production of food, medicine, daily chemical, petroleum, paper making, textile, construction and other fields. [0004] Carboxymethylcellulose (CMC) is a no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/69D21H17/68D21H17/26
Inventor 李上
Owner 广东冠豪新材料研发有限公司
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