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Solvent-free graphene modified static conductive acrylic resin and preparation method thereof

A technology of graphene modification and acrylic resin, which is applied in the field of acrylic resin, and can solve problems such as low efficiency, difficulty in storing graphene acrylic resin slurry, difficulty in graphene dispersion, etc.

Active Publication Date: 2018-12-18
江苏道蓬科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. Due to the large specific surface area of ​​graphene, it is still difficult to disperse graphene in acrylic resin at this stage, and it needs a long time to stir and disperse, which takes a long time and low efficiency;
[0009] 2. It is difficult to preserve the graphene acrylic resin slurry, and agglomeration and precipitation will occur soon, which will affect the later use;
[0010] 3. Solvent-based graphene acrylic resin slurry is a hazardous chemical, and it is inconvenient to transport and store

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The embodiment of the present invention provides a method for preparing a solvent-free graphene-modified static conductive acrylic resin, which includes the following steps:

[0022] Add 20-30g of toluene, 5-10g of methyl methacrylate, 10-20g of butyl acrylate, 25-35g of styrene, 1-2g of acrylic acid, and 1-3g of conductive graphene into the reactor Heating to raise the temperature to 110-120°C;

[0023] A reaction: at 110-120°C, add the reaction catalyst A into the reaction kettle within 2-3 hours by adding gradually, and then reflux and react at constant temperature for 1.5-2 hours;

[0024] Reaction B: After the reaction time of A is reached, add catalyst B step by step within the predetermined time, and keep the constant temperature reaction at 110-120°C for 1.5-2h;

[0025] Reaction C: After the reaction time of B is reached, add catalyst C step by step within the predetermined time, and keep the constant temperature reaction at 110-120°C for 0.5-1h;

[0026] Aft...

Embodiment 1

[0041] The preparation method of the solvent-free graphene modified static conductive acrylic resin of embodiment 1 comprises the steps:

[0042] The first stage: Add 20g of toluene, 5g of methyl methacrylate, 10g of butyl acrylate, 25g of styrene, 1g of acrylic acid, and 1g of conductive graphene into the reactor and heat up to 110 -120°C.

[0043] The second stage: when the temperature reaches the set value of 110-120°C, add 1g of reaction catalyst A into the reactor within about 3 hours by adding gradually, and then reflux and react at constant temperature for 2 hours.

[0044] Three stages: After the reaction time is up, add 0.5g catalyst B, add gradually in about 15min, then react at constant temperature at 110-120°C for 2h.

[0045] Four stages: After the reaction time is up, add 0.1g of catalyst C, add gradually in about 15 minutes, and then react at a constant temperature of 110-120°C for 1 hour.

[0046] After the reaction, vacuum dehydration and solvent removal unt...

Embodiment 2

[0050] The embodiment of the present invention provides a method for preparing a solvent-free graphene-modified static conductive acrylic resin, which includes the following steps:

[0051] The first stage: add 25g of toluene, 6g of methyl methacrylate, 12g of butyl acrylate, 28g of styrene, 1g of acrylic acid, and 1g of conductive graphene into the reactor and heat up to 110 -120°C.

[0052] The second stage: when the temperature reaches the set value of 110-120°C, add 1.2g of reaction catalyst A into the reactor within about 3 hours by adding gradually, and then reflux and react at constant temperature for 2 hours.

[0053] Three stages: after the reaction time is up, add 0.6g catalyst B, add gradually in about 15min, then react at constant temperature at 110-120℃ for 2h.

[0054] Four stages: After the reaction time is up, add 0.2g of catalyst C, add gradually in about 15 minutes, and then react at a constant temperature of 110-120°C for 1 hour.

[0055] After the reactio...

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Abstract

The invention relates to a solvent-free graphene-modified static-electricity-conductive acrylic resin and a preparation method thereof. The preparation method includes the following steps: 1) adding 20-30 g of toluene, 5-10 g of methyl methacrylate, 10-20 g of butyl acrylate, 25-35 g of styrene, 1-2 g of acrylic acid and 1-3 g of electric-conductive graphene into a reactor, heating the reactor to 110-120 DEG C and gradually adding a reaction catalyst A into the reactor to perform a constant-temperature reflux reaction; 2) within preset time, gradually adding a catalyst B completely, and maintaining the temperature at 110-120 DEG C to perform the reaction at constant temperature; 3) within preset time, gradually adding a catalyst C completely, and maintaining the temperature at 110-120 DEG C to perform the reaction at constant temperature; and 4) when the reaction is finished, removing water and solvent to produce the solvent-free graphene-modified static-electricity-conductive acrylic resin. In the method, through the three steps of polymerization reactions, the graphene is high-effectively and homogeneously dispersed. The product can be stored stably for a long time and is convenient and quick to transport. The preparation method can promote wide application of graphene.

Description

technical field [0001] The invention relates to the technical field of acrylic resin, in particular to a solvent-free graphene-modified static conductive acrylic resin and a preparation method thereof. Background technique [0002] Graphene is a carbon atom with sp 2 The honeycomb planar film formed by hybridization is a quasi-two-dimensional material with only one atomic layer thickness, so it is also called single atomic layer graphite. Andre Geim and Konstantin Novoselov, physicists at the University of Manchester in the United Kingdom, successfully separated graphene from graphite by micromechanical exfoliation, so they jointly won the 2010 Nobel Prize in Physics. The common powder production methods of graphene are mechanical exfoliation method, redox method, and SiC epitaxial growth method, and the film production method is chemical vapor deposition (CVD). Due to its very good strength, flexibility, electrical conductivity, thermal conductivity, and optical propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F220/14C08F220/18C08F220/06C08F2/44C08K3/04C08L25/08
CPCC08F212/08C08K3/04C08K2201/001C08L2201/04C08L25/08C08F220/14C08F220/1804C08F220/06
Inventor 周海燕王冬冬
Owner 江苏道蓬科技有限公司
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