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Lightweight graphene composite material composition, lightweight graphene composite material and preparation method for lightweight graphene composite material

A composite material and composition technology, applied in the field of composite materials, can solve problems such as difficulty in uniform dispersion and difficulty in the application of graphene

Pending Publication Date: 2020-05-01
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Graphene with a complete structure is a two-dimensional crystal composed of six-membered benzene rings without any unstable bonds. It is difficult to disperse evenly in organic solvents, which has caused great difficulties for the application of graphene

Method used

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  • Lightweight graphene composite material composition, lightweight graphene composite material and preparation method for lightweight graphene composite material

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Experimental program
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Effect test

Embodiment 1

[0042] The composition and proportioning ratio of the lightweight graphene composite composition of this embodiment are: 82 parts by weight of thermoplastic resin (60 parts by weight of polyethylene and 22 parts by weight of polypropylene, melting temperature is 180-200 ° C), 0.3 parts by weight of amino Graphene, 5.5 parts by weight polyvinylpyrrolidone, 5.2 parts by weight epoxy silane coupling agent, and 7 parts by weight ammonium persulfate;

[0043] The preparation steps of the lightweight graphene composite material are as follows: dissolve the aminated graphene in DMF, stir and mix with the dispersant polyvinylpyrrolidone and epoxy silane coupling agent at a temperature of 60°C to obtain a three-dimensional functionalized graphene solution , wherein the weight ratio of the functionalized graphene to DMF is 1:99; the aforementioned three-dimensional functionalized graphene solution and the thermoplastic resin are stirred and mixed at a temperature of 80° C., and the initi...

Embodiment 2

[0045] The composition and proportioning of the lightweight graphene composite material composition of the present embodiment are: 86 parts by weight of thermoplastic resin (46 parts by weight of polyethylene and 40 parts by weight of polypropylene, melting temperature is 180-200 ° C), 0.25 parts by weight of carboxyl Graphene, 4 parts by weight polyethylene glycol 200, 4.75 parts by weight vinyl silane coupling agent, and 5 parts by weight potassium persulfate;

[0046] The preparation steps of lightweight graphene composite materials are: dissolving carboxylated graphene in water, stirring and mixing with dispersant polyethylene glycol 200 and vinyl silane coupling agent at a temperature of 70°C to obtain three-dimensional functionalized graphene solution, wherein the weight ratio of the functionalized graphene to water is 1:99; the aforementioned three-dimensional functionalized graphene solution and thermoplastic resin are stirred and mixed at a temperature of 90°C, and the...

Embodiment 3

[0048] The composition and proportioning ratio of the lightweight graphene composite composition of this embodiment are: 81.3 parts by weight of thermoplastic resin (60 parts by weight of polyethylene and 25.3 parts by weight of polypropylene, melting temperature is 180-200 ° C), 0.2 parts by weight of amino Graphene, 4.5 parts by weight of polyvinylpyrrolidone, 6 parts by weight of epoxy silane coupling agent, and 8 parts by weight of azobisisobutyronitrile;

[0049] The preparation steps of the lightweight graphene composite material are as follows: dissolve the aminated graphene in DMF, stir and mix with the dispersant polyvinylpyrrolidone and epoxy silane coupling agent at a temperature of 80°C to obtain a three-dimensional functionalized graphene solution , wherein the weight ratio of functionalized graphene to DMF is 1:99; the aforementioned three-dimensional functionalized graphene solution and thermoplastic resin are stirred and mixed at a temperature of 100°C, and the ...

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Abstract

The invention relates to a lightweight graphene composite material composition, a lightweight graphene composite material and a preparation method for the lightweight graphene composite material. Thecomposition comprises the following components in terms of 100 parts by weight of the composition: 70-95 parts by weight of thermoplastic resin, 0.01-0.5 part by weight of functionalized graphene, 2-8parts by weight of a dispersing agent, 2-8 parts by weight of a coupling agent and 2-10 parts by weight of an initiator. The lightweight graphene composite material provided by the invention has lowdensity and good mechanical properties like tensile strength, bending strength and Izod notched impact strength, and is improved in melt index.

Description

technical field [0001] The present disclosure relates to the field of composite materials, in particular, to a lightweight graphene composite material composition, a lightweight graphene composite material and a preparation method thereof. Background technique [0002] With the continuous innovation of materials, the concepts of energy saving, environmental protection, and lightweight materials are becoming more and more intense under the general trend of energy saving, emission reduction and innovation. Compared with metal materials such as aluminum alloys, titanium alloys, and structural steels, reinforced polymer composites have the characteristics of high specific strength and high specific stiffness. Therefore, more and more aircraft, rail transit vehicles, ships, bridges and new energy fields use reinforced polymer composite materials, which can not only reduce energy consumption, improve mechanical properties, but also improve the level of integration and reduce costs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L39/06C08K9/06C08K3/04C08G83/00
CPCC08L23/06C08G83/001C08L2205/03C08L23/12C08L39/06C08K9/06C08K3/042
Inventor 李赫然李青冯蔚东宋亚滨于卫昆孙立红
Owner DONGXU OPTOELECTRONICS TECH CO LTD