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Method for preparing epoxy-based composite materials by non-covalently modifying graphene with perylene anhydride

A non-covalent modification and composite material technology, which is applied in the field of polymer material modification, can solve problems that have not been reported in the literature, and achieve the effects of improved heat resistance and mechanical properties, simple operation, and easy large-scale application

Active Publication Date: 2018-11-06
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This idea has not been reported in the literature

Method used

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  • Method for preparing epoxy-based composite materials by non-covalently modifying graphene with perylene anhydride
  • Method for preparing epoxy-based composite materials by non-covalently modifying graphene with perylene anhydride

Examples

Experimental program
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Effect test

Embodiment 1

[0016] (1) Add 0.02 grams of graphene to 80 milliliters of N-methylpyrrolidone, ultrasonically disperse for 45 minutes, then add 0.0037 grams of zinc acetate, 0.0392 grams of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 grams of trihydroxy Methylaminomethane, continue to ultrasonically disperse for 45min, and then react at 180°C for 12h under a nitrogen atmosphere. After the reaction is completed, pour the reaction solution into absolute ethanol to precipitate the material, filter, and the resulting filtrate is vacuum-dried to obtain The purple-black product is non-covalently modified graphene with perylene anhydride.

[0017] (2) Weigh the perylene anhydride non-covalently modified graphene prepared in step (1) and add it into acetone for ultrasonic dispersion for 1 h to obtain a perylene anhydride non-covalently modified graphene acetone dispersion.

[0018] (3) take by weighing 26 grams of epoxy E-44, remove moisture and air therein under reduced pressure and hea...

Embodiment 2

[0023] (1) Add 0.02 grams of graphene to 80 milliliters of N-methylpyrrolidone, ultrasonically disperse for 45 minutes, then add 0.0037 grams of zinc acetate, 0.0392 grams of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 grams of trihydroxy Methylaminomethane, continue to ultrasonically disperse for 45min, and then react at 180°C for 12h under a nitrogen atmosphere. After the reaction is completed, pour the reaction solution into absolute ethanol to precipitate the material, filter, and the resulting filtrate is vacuum-dried to obtain The purple-black product is non-covalently modified graphene with perylene anhydride.

[0024] (2) Weigh 0.26 g of the perylene anhydride non-covalently modified graphene prepared in step (1) and add it into acetone for ultrasonic dispersion for 1 h to obtain a perylene anhydride non-covalently modified graphene acetone dispersion.

[0025] (3) take by weighing 26 grams of epoxy E-44, remove moisture and air therein under reduced pressu...

Embodiment 3

[0029] (1) Add 0.02 grams of graphene to 80 milliliters of N-methylpyrrolidone, ultrasonically disperse for 45 minutes, then add 0.0037 grams of zinc acetate, 0.0392 grams of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 grams of trihydroxy Methylaminomethane, continue to ultrasonically disperse for 45min, and then react at 180°C for 12h under a nitrogen atmosphere. After the reaction is completed, pour the reaction solution into absolute ethanol to precipitate the material, filter, and the resulting filtrate is vacuum-dried to obtain The purple-black product is non-covalently modified graphene with perylene anhydride.

[0030] (2) Weigh 0.52 g of the perylene anhydride non-covalently modified graphene prepared in step (1) and add it into acetone for ultrasonic dispersion for 1 h to obtain a perylene anhydride non-covalently modified graphene acetone dispersion.

[0031] (3) take by weighing 26 grams of epoxy E-44, remove moisture and air therein under reduced pressu...

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Abstract

The invention discloses a method for preparing epoxy-based composite materials by using perylene anhydride to non-covalently modify graphene. Add 0.02 g of graphene to 80 ml of N-methylpyrrolidone, ultrasonically disperse for 0.5~1 h, then add 0.0037 g of zinc acetate, 0.0392 g of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 g of trimethylol aminomethane, continue ultrasonic dispersion for 0.5~1h, and then react at 180°C for 10~14h under a nitrogen atmosphere. drying to obtain perylene anhydride non-covalently modified graphene, and then adding the obtained perylene anhydride non-covalently modified graphene into an epoxy resin curing system, and undergoing a curing reaction to obtain an epoxy-based composite material. The method of the invention is simple to operate and easy to popularize, and the prepared epoxy-based composite material fully utilizes the synergistic enhancement effect on the performance of perylene anhydride and graphene, so that the toughness, heat resistance and The mechanical properties have been greatly improved.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and in particular relates to a method for preparing epoxy-based composite materials by using perylene anhydride to non-covalently modify graphene. Background technique [0002] Graphene is a new carbon material with a single-layer two-dimensional honeycomb lattice structure formed by densely packed carbon atoms. It has a large specific surface area and a π-π conjugated structure. As an ideal two-dimensional crystal material, graphene It exhibits many excellent properties, such as stable chemical properties, high mechanical strength, excellent electrical and thermal properties, etc. These unique properties of graphene make it have broad application prospects in sensing devices, composite materials, energy storage devices, electronic devices and other fields. Studies have found that its Young's modulus is 1100GPa, and its fracture strength reaches 130GPa, which is much higher...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K9/04C08K3/04
CPCC08K3/04C08K9/04C08L2201/08C08L63/00
Inventor 徐旭赵良传李裕琪高建陆绍荣韦春
Owner GUILIN UNIVERSITY OF TECHNOLOGY