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A kind of preparation method of highly oriented graphene reinforced bismuth resin matrix composite material

A technology for strengthening resin-based and composite materials, applied in the field of materials science, can solve the problem of inability to highly orient graphene, and achieve the effect of improving mechanical properties, expanding the scope of application, and strengthening competition.

Active Publication Date: 2021-02-09
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention solves the problem that the existing method cannot highly orient graphene in the resin matrix, improves the mechanical properties of the resin matrix, changes isotropic materials into anisotropic materials, expands the application range of composite materials, and strengthens the Competitive advantage, providing a novel directional preparation method for nanofilling

Method used

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  • A kind of preparation method of highly oriented graphene reinforced bismuth resin matrix composite material
  • A kind of preparation method of highly oriented graphene reinforced bismuth resin matrix composite material
  • A kind of preparation method of highly oriented graphene reinforced bismuth resin matrix composite material

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specific Embodiment approach 1

[0026] Specific Embodiment 1: This embodiment provides a preparation method that can be used to prepare highly oriented graphene-reinforced double-horse resin-based composite materials. In the method, the three-dimensional graphene skeleton is prepared by vacuum infusion. The precursor of the composite material slurry , and then use high-speed stirring and ultrasonic-assisted method to prepare graphene resin-based composite material slurry, prepare oriented graphene-reinforced resin-based composite material precursor by controlling temperature field and force field, and finally prepare high-dispersion resin-based composite material by pressure gradient curing method Graphene-reinforced resin-based composites. Specifically include the following steps:

[0027] Step 1, the preparation of graphene sponge:

[0028] Method 1. Use the improved freeze-drying method to prepare graphene sponge. The specific steps are as follows: freeze the dispersed graphene aqueous solution with a co...

specific Embodiment approach 2

[0037] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, the concentration of the graphene aqueous solution is 5-10 mg / ml; the concentration of the graphene oxide aqueous solution is 5-20 mg / ml.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: in step 1, the temperature used for the chemical reduction of hydrazine hydrate is 90°C, and the use time is 24 hours; the thermal reduction temperature is 600-800°C.

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Abstract

The invention discloses a method for preparing a high-orientated graphene reinforced bismaleimide resin based composite material. The method comprises the steps of preparing a composite material slurry precursor from a three-dimensional graphene skeleton through a vacuum infusion method, then, preparing graphene resin based composite material slurry by adopting a high-speed stirring ultrasonic assisted method, preparing an orientated graphene reinforced resin based composite material precursor through controlling a temperature field and a force field, and finally, preparing a high-dispersion graphene reinforced resin based composite material through a pressurized gradient curing method. According to the method, the problem of the existing methods that graphene cannot be highly orientated in a resin matrix is solved, the mechanical properties of the resin matrix are improved, an isotropic material is changed into an anisotropic material, the range of application of the composite material is extended, the competitive advantage is strengthened, and a novel orientated preparation method is provided for nano filling.

Description

technical field [0001] The invention belongs to the technical field of material science and relates to a method for preparing a highly oriented graphene-reinforced resin-based composite material. Background technique [0002] Entering the 21st century, aerospace has shown a broader development prospect. High-level or ultra-high-level aerospace activities are more frequent, and its role will go far beyond the field of science and technology itself. will have wider and far-reaching impacts. It should be pointed out that the great achievements of the aerospace industry are inseparable from the development and breakthrough of aerospace material technology. Materials are the foundation and forerunner of modern high-tech and industry, and to a large extent the prerequisite for high-tech breakthroughs. The general development trend of materials is light weight, high strength, high modulus, high temperature resistance, and low cost. For the development of modern high-performance a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K7/24C08L79/08C01B32/184B29C35/02B29B13/10
CPCB29B13/10B29C35/02B29C2791/006C08K7/24C01B32/184C08L79/085
Inventor 彭庆宇赵旭赫晓东周敏
Owner HARBIN INST OF TECH
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