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Transparent paper supplementary with regenerated cellulose and manufacturing method thereof

A technology of regenerated cellulose and auxiliary manufacturing, applied in the field of rapid preparation of transparent paper, can solve the problems of low mechanical strength and long production cycle of transparent paper, and achieve the effects of low cost, compact structure and short production cycle

Active Publication Date: 2016-12-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the patent of the present invention is to overcome the shortcomings of the long production cycle and low mechanical strength of transparent paper in the prior art, and provide a transparent paper with low production cost, short production cycle, high transparency and good mechanical strength. its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for assisting the production of transparent paper with regenerated cellulose, comprising the following steps and process conditions:

[0029] (1) Dissolution of cellulose powder: first dissolve 0.2g cellulose powder in 3ml EMIMMeOPO 2 In the H ionic liquid, heat at 85°C, and the cellulose is completely dissolved in about 16 minutes;

[0030] (2) Preparation of regenerated cellulose solution: 12 g of dimethyl sulfoxide solvent was added to 300 g of deionized water, and heated at 85° C. for 10 min to obtain a regenerated cellulose solution.

[0031] (3) Preparation of regenerated cellulose: Slowly add the solution of dissolving cellulose powder obtained through step (1) into the regenerated cellulose solution obtained through step (2) which is being stirred at high speed. Under the action, the emulsification speed is 5000r / min, and the emulsification time is 2min. A large number of aggregated cellulose molecules are divided into countless small groups of cellul...

Embodiment 2

[0038] A method for assisting the production of transparent paper with regenerated cellulose, comprising the following steps and process conditions:

[0039] (1) Dissolution of cellulose powder: first dissolve 0.2g cellulose powder in 3ml EMIMMeOPO 2 In the H ionic liquid, heat at 85°C, and the cellulose is completely dissolved in about 16 minutes;

[0040] (2) Preparation of regenerated cellulose solution: 12 g of dimethyl sulfoxide solvent was added to 300 g of deionized water, and heated at 85° C. for 10 min to obtain a regenerated cellulose solution.

[0041] (3) Preparation of regenerated cellulose: Slowly add the solution of dissolving cellulose powder obtained through step (1) into the regenerated cellulose solution obtained through step (2) which is being stirred at high speed. Under the action, the emulsification speed is 5000r / min, and the emulsification time is 2min. A large number of aggregated cellulose molecules are divided into numerous small groups of cellulo...

Embodiment 3

[0047] A method for assisting the production of transparent paper with regenerated cellulose, comprising the following steps and process conditions:

[0048] (1) Dissolution of cellulose powder: first dissolve 0.3g cellulose powder in 3ml EMIMMeOPO 2 In the H ionic liquid, heat at 85°C, and the cellulose is completely dissolved in about 16 minutes;

[0049] (2) Preparation of regenerated cellulose solution: 12 g of dimethyl sulfoxide solvent was added to 300 g of deionized water, and heated at 85° C. for 10 min to obtain a regenerated cellulose solution.

[0050] (3) Preparation of regenerated cellulose: Slowly add the solution of dissolving cellulose powder obtained through step (1) into the regenerated cellulose solution obtained through step (2) which is being stirred at high speed. Under the action, the emulsification speed is 5000r / min, and the emulsification time is 2min. A large number of aggregated cellulose molecules are divided into countless small groups of cellul...

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Abstract

The invention discloses transparent paper supplementary with regenerated cellulose and a manufacturing method thereof. The method comprises the following steps: firstly, adding fine cellulose powder into EMIMMeOPO2H ionic liquid; heating cellulose till fully dissolving; slowly adding the cellulose solution into a regenerating solution under quick stirring state; cutting a large amount of accumulated cellulose molecules into countless small cellulose molecule groups under the high-speed shearing effect of an emulsifying machine, wherein the small groups are regenerated cellulose; mixing the regenerated cellulose with fully pulped plant fibers and forming into an end product of paper. The thickness of the transparent paper is 30-100mu m, the light transmissivity is 60-90%, the tensile strength is 20-60 Mpa and the stretch rate is (10-30)%. According to the invention, paper pulp is taken as the raw material, the process is environmentally friendly, the cost is low, the production period is short, only 30-120min is required by the whole process, the present paper machine, technique and equipment are locally modified and the industrial production can be achieved.

Description

technical field [0001] The present invention relates to a kind of rapid preparation method of transparent paper, especially relate to a kind of transparent paper and its method that are assisted by regenerated cellulose, and this transparent paper can be applied to organic light-emitting diode, display device, transistor, solar cell, supercapacitor and other flexible electronic devices. Background technique [0002] As an emerging high-performance transparent substrate, transparent paper has the advantages of low-carbon environmental protection, curlability, high processing temperature, and good printability. In recent years, very gratifying successful application experience has been obtained in the fields of flexible organic light-emitting diodes, display devices, transistors, solar cells, supercapacitors and other flexible electronic devices, which has attracted strong attention from all over the world. At present, transparent paper mainly includes nano paper and regenera...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/10D21H13/08
CPCD21H13/08D21H15/10
Inventor 刘德桃路朋博程凡林美燕欧阳豪
Owner SOUTH CHINA UNIV OF TECH
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