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Waterborne polyurethane textile size based on graphene modification and preparation method thereof

A water-based polyurethane and graphene modification technology, used in textiles and papermaking, improved hand fibers, flame-retardant fibers, etc., can solve the problems of less research on textile pulp, and achieve excellent mechanical properties, film-forming The effect of good performance and stable dispersion performance

Active Publication Date: 2017-02-15
江西省高精科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above prior art that there are many studies on composite materials of graphene and polyurethane, but less studies on textile pulp

Method used

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  • Waterborne polyurethane textile size based on graphene modification and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Mix concentrated sulfuric acid and potassium permanganate with a volume ratio of 1:1 to form a mixed solution, with a material-to-liquid ratio of 1g:30ml, add graphene, stir at 500rpm for 30min, and drop 0.3 parts of the volume of the mixed solution distilled water, oxidized in a water bath at 90°C for 24 hours to obtain graphene oxide, washed with water, centrifuged, and ultrasonicated to obtain a graphene oxide aqueous solution with a content of 0.5 g / L.

[0026] (2) In parts by weight, the aqueous solution containing 1 part of graphene oxide and 5 parts of aryl diazonium salt are stirred and reacted at a speed of 700 rpm for 8 h at a temperature of 80 ° C to obtain aryl-modified graphene, and 5 parts and 35 parts of water-based polyurethane solution were added into a reaction kettle at 100°C, and reacted under microwave radiation for 5 minutes at a power of 500W to obtain a graphene / polyurethane solution, wherein the water content was 20 parts.

[0027] (3) Add 3...

Embodiment 2

[0029] (1) Mix concentrated sulfuric acid and potassium permanganate with a volume ratio of 1:1.2 to form a mixed solution, with a solid-liquid ratio of 1g:50ml, add graphene, stir at 750rpm for 30min, add dropwise the volume of 0.4 parts of the mixed solution distilled water, oxidized in a water bath at 95°C for 36 hours to obtain graphene oxide, washed with water, centrifuged, and ultrasonicated to obtain a graphene oxide aqueous solution with a content of 1 g / L.

[0030] (2) In parts by weight, the aqueous solution containing 1 part of graphene oxide and 15 parts of aryl diazonium salt are stirred and reacted at a speed of 1000 rpm for 10 h at a temperature of 85 ° C to obtain aryl-modified graphene. 15 parts and 50 parts of water-based polyurethane solution were added to a reaction kettle at 120° C., and reacted under microwave radiation for 10 minutes at a power of 800 W to obtain a graphene / polyurethane solution, wherein the water content was 20 parts.

[0031] (3) Add 3...

Embodiment 3

[0037] (1) Mix concentrated sulfuric acid and potassium permanganate with a volume ratio of 1:1.1 to form a mixed solution, with a solid-liquid ratio of 1g:40ml, add graphene, stir at 600rpm for 30min, and drop 0.35 parts of the volume of the mixed solution distilled water, oxidized in a water bath at 92°C for 28 hours to obtain graphene oxide, washed with water, centrifuged, and ultrasonicated to obtain a graphene oxide aqueous solution with a content of 0.7 g / L.

[0038] (2) In parts by weight, the aqueous solution containing 1 part of graphene oxide and 10 parts of aryl diazonium salt are stirred and reacted at a speed of 800 rpm for 9 h at a temperature of 80 ° C to obtain aryl-modified graphene, and 12 parts and 40 parts of water-based polyurethane solution were added to a reaction kettle at 110° C., and reacted under microwave radiation for 8 minutes at a power of 600 W to obtain a graphene / polyurethane solution, wherein the water content was 45 parts.

[0039] (3) Add 40 ...

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Abstract

The invention provides waterborne polyurethane textile size based on graphene modification and a preparation method thereof. The preparation method includes: adding graphene into a concentrated sulfuric acid and potassium permanganate solution, stirring, dropwise adding distilled water, performing water-bath oxidization to obtain graphene oxide, and washing and performing centrifugal ultrasonic treatment to obtain a graphene oxide aqueous solution; allowing the graphene oxide to have reaction with aryl diazonium salt to obtain acryl-modified graphene, and allowing the acryl-modified graphene to have microwave radiation reaction with a waterborne polyurethane solution to obtain a graphene / polyurethane solution; adding ethylene glycol, nano titanium dioxide, calcium carbonate and hydroxyethyl cellulose into the graphene / polyurethane solution, heating and stirring, and grinding to obtain the waterborne polyurethane textile size based on the graphene modification. The waterborne polyurethane textile size prepared by the method has the advantages that the waterborne polyurethane textile size is good in stability and film forming performance, and the formed film is soft and tough and has functions of resisting heat and static.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to a graphene-based modified water-based polyurethane textile slurry and a preparation method thereof. Background technique [0002] At present, textile size can be mainly divided into modified starch, polyvinyl alcohol and acrylic acid, among which polyvinyl alcohol has the characteristics of good adhesion, high size film strength and good wear resistance, but the environmental protection of polyvinyl alcohol is very poor, so , as the concept of green recycling is deeply rooted in the hearts of the people, the research and development of green degradable textile pulp is also imperative. [0003] Water-based polyurethane is a green and degradable polymer material that can be dispersed in water. It has the advantages of low odor, non-toxic, non-polluting, energy-saving, and convenient operation. It is widely used in coatings and adhesives. Chinese literature ("...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M11/74D06M13/148D06M11/46D06M11/76D06M15/09
CPCD06M11/46D06M11/74D06M11/76D06M13/148D06M15/09D06M15/564D06M2200/30D06M2200/50
Inventor 王文庆
Owner 江西省高精科技有限公司
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