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Paper manufactured with pulp by carboxymethylcellulose modified nanometer titania and preparation method thereof

A technology of carboxymethyl cellulose and nano-titanium dioxide, which is applied in the field of paper for filling and papermaking

Active Publication Date: 2014-12-17
度测(上海)科技服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]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 manufactured with pulp by carboxymethylcellulose modified nanometer titania and preparation method thereof
  • Paper manufactured with pulp by carboxymethylcellulose modified nanometer titania and preparation method thereof

Examples

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Embodiment 1

[0030] A kind of paper made of carboxymethyl cellulose modified nano-titanium dioxide, prepared according to the following steps:

[0031] (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;

[0032] (2) Put carboxymethyl cellulose with a concentration of 5% in ethanol, add nano-titanium dioxide in the ratio of nano-titanium dioxide: carboxymethyl cellulose = 1:1 and disperse it in carboxymethyl cellulose-ethanol solution to obtain The carboxymethyl cellulose-ethanol solution of nano-titanium dioxide, the filter paper impregnated with aluminum sulfate described in step (1), is pulled and dipped several times in the carboxymethyl cellulose-nano-titanium dioxide ethanol solution; after that, first Air-dried for 24 hours, that is.

Embodiment 2

[0034] A kind of paper made of carboxymethyl cellulose modified nano-titanium dioxide, prepared according to the following steps:

[0035] (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 9% in ethanol, add nano-titanium dioxide and disperse it in carboxymethyl cellulose according to the ratio of nano-titanium dioxide: carboxymethyl cellulose = 1:4- In the ethanol solution, ultrasonically oscillate for 8 min to obtain a carboxymethyl cellulose-ethanol solution containing nano-titanium dioxide, and use a paint scraper to coat the prepared carboxymethyl cellulose-ethanol solution on the surface of the filter paper. 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...

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Abstract

The invention relates to paper manufactured with pulp by carboxymethylcellulose modified nanometer titania. The paper is prepared by the following steps that (1) aluminum sulfate is prepared to form an aqueous solution with mass concentration of 5%-20%, filter paper is impregnated for one to three minutes, and the filter paper is dried at the temperature of 100 DEG C to 105 DEG C and numbered; (2) carboxymethylcellulose with concentration of 5%-9% is added into ethyl alcohol, nanometer titania is added and dispersed in a carboxymethylcellulose-ethyl alcohol solution in a ratio of nanometer titania to carboxymethylcellulose being (1:1)-(1:4) to obtain the carboxymethylcellulose-ethyl alcohol solution with the nanometer titania, and the filter paper impregnated in aluminum sulfate in the step (1) is subjected to dip-coating in the carboxymethylcellulose-nanometer titania ethanol solution for many times; then air drying is performed for 24 hours to 48 hours to obtain the paper.

Description

[0001] technical field [0002] The invention relates to paper made with filling, in particular to paper made with carboxymethyl cellulose modified nano-titanium 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 n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/69D21H21/16D21H21/14
Inventor 李上
Owner 度测(上海)科技服务中心
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