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Graphene water-based adhesive and preparation method thereof

A water-based adhesive and vinyl water-based technology, applied in the direction of adhesives, adhesive additives, inorganic adhesives, etc., can solve the problems of slow curing speed and insufficient initial adhesion, and achieve fast curing speed, improved bonding strength, The effect of strong initial adhesion

Inactive Publication Date: 2019-03-01
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing water-based adhesives have shortcomings such as insufficient initial adhesion and slow curing speed, which cannot meet the requirements of use well.

Method used

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  • Graphene water-based adhesive and preparation method thereof
  • Graphene water-based adhesive and preparation method thereof
  • Graphene water-based adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 50 kg of deionized water into a container with a stirring device, then add 5 kg of carboxymethyl cellulose according to the proportion, stir for 15 minutes to completely dissolve it; add the obtained solution into a hydrothermal kettle reactor, and gradually heat up to 180 ℃, keep the pressure within 8Mpa, carry out hydrothermal reaction, and discharge the material after 5 hours of reaction; centrifuge the obtained dark brown material in a centrifuge at a speed of 5000r / min to obtain a light yellow transparent liquid, which is graphene. aqueous solution. Measure and weigh 50kg of graphene aqueous solution, 10kg of water-based viscosifying emulsion, and 0.1kg of defoamer, and add them into a high-speed mixer to disperse evenly. The speed of the high-speed mixer is 200r / min, and the stirring time is 5min; Film agent 0.1kg, antifungal agent 0.2kg, continue to stir for 5 minutes; then reduce the speed to 100r / min, add thickener 0.3kg, continue to stir for 5 minutes, fin...

Embodiment 2

[0021] Add 60 kg of deionized water into a container with a stirring device, then add 8 kg of carboxymethyl cellulose according to the proportion, stir for 20 minutes to completely dissolve it; add the obtained solution into a hydrothermal kettle reactor, and gradually heat up to 170 ℃, keep the pressure within 8Mpa, carry out hydrothermal reaction, and discharge the material after 6 hours of reaction; centrifuge the obtained dark brown material in a centrifuge at a speed of 6000r / min to obtain a light yellow transparent liquid, which is graphene. aqueous solution. Measure and weigh 60kg of graphene aqueous solution, 13kg of water-based viscosifying emulsion, and 0.2kg of defoamer, and add them into a high-speed mixer to disperse evenly. The speed of the high-speed mixer is 200r / min, and the stirring time is 7min; Film agent 0.2kg, antifungal agent 0.2kg, continue to stir for 7 minutes; then reduce the speed to 100r / min, add thickener 0.3kg, continue to stir for 6 minutes, fin...

Embodiment 3

[0023] Add 30 kg of deionized water into a container with a stirring device, then add 5 kg of carboxymethyl cellulose according to the proportion, stir for 10 minutes to completely dissolve it; add the obtained solution into a hydrothermal kettle reactor, and gradually heat up to 160 ℃, keep the pressure within 8Mpa, carry out hydrothermal reaction, and discharge the material after 7 hours of reaction; centrifuge the obtained dark brown material in a centrifuge at a speed of 7000r / min to obtain a light yellow transparent liquid, which is graphene oxide of aqueous solution. Measure and weigh 70kg of graphene aqueous solution, 20kg of water-based viscosifying emulsion, and 0.3kg of defoamer, and add them into a high-speed mixer to disperse evenly. The speed of the high-speed mixer is 200r / min, and the stirring time is 9min; Film agent 0.3kg, antifungal agent 0.3kg, continue to stir for 9 minutes; then reduce the speed to 100r / min, add thickener 0.5kg, continue to stir for 9 minu...

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Abstract

The invention discloses a novel graphene water-based adhesive and a preparation method thereof. The preparation method of the adhesive mainly comprises the two steps that (1) a graphene solution is prepared from carboxymethylcellulose through a hydrothermal synthesis method; and (2) auxiliaries such as a water-based viscosity-enhancing emulsion, a thickener, a defoaming agent, a film-forming agent, a pH regulator and a mildew preventive are added into the prepared graphene solution, even stirring is conducted, and thus the water-based adhesive is obtained. The novel graphene water-based adhesive prepared through the preparation method has the advantages of quick curing, high initial adhesion, environmental protection and the like.

Description

technical field [0001] The invention relates to a water-based adhesive and a preparation method thereof, more specifically to a novel graphene water-based adhesive and a preparation method thereof. Background technique [0002] In 2004, British scientists prepared for the first time a carbon atom with sp 2 Graphene, a new type of two-dimensional atomic crystal composed of hybrid-connected monoatomic layers, has a thickness of only 0.3354nm, which is the thinnest material found in the world so far. Graphene has a special monoatomic layer structure and novel physical properties: thermal conductivity is about 5000J / (m K s), the band gap is almost zero, high transparency (about 97.7%), especially its strength is as high as 130Gpa , its Young's modulus (1100GPa) and breaking strength (125GPa) are equivalent to those of carbon nanotubes. At present, the traditional method of preparing graphene is mainly a strong acid redox method, which has a certain impact on the environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/00C09J11/06C09J11/08
CPCC09J1/00C09J11/06C09J11/08
Inventor 陈卫丰李德江李永双代忠旭陈少娜胡玉林申佳露吕果
Owner CHINA THREE GORGES UNIV