A kind of high damping graphene/polymer composite material and preparation method thereof

A composite material and graphene technology, which is applied in the field of high damping graphene/polymer composite materials and its preparation, can solve the constraints on the application of graphene/polymer matrix composite materials, the decline in the damping performance of graphene/polymer composite materials, etc. problems, to achieve the effect of improving mechanical strength and damping performance, improving mechanical properties, and excellent damping characteristics

Active Publication Date: 2022-01-14
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although improving the dispersion of graphene and increasing the interaction between graphene and polymer matrix can help to improve the mechanical strength of graphene / polymer composites, it is inevitable that the damping performance of graphene / polymer composites will be limited. decline
Therefore, how to balance the mechanical strength and damping properties of graphene / polymer matrix composites has become a key problem that is difficult to solve, which greatly restricts the application of graphene / polymer matrix composites.

Method used

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  • A kind of high damping graphene/polymer composite material and preparation method thereof
  • A kind of high damping graphene/polymer composite material and preparation method thereof
  • A kind of high damping graphene/polymer composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] In the present embodiment, a kind of high-damping graphene composite material, the content of each component is calculated by weight parts:

[0032] Spherical graphene prepared by spray drying method: 0.01 part; spherical graphene is a hollow spherical structure, wherein the spherical graphene particle size distribution range is between 1 and 5 microns, and the thickness of the outer wall of the hollow spherical shape is between 0.1 and 0.2 microns;

[0033] T31 epoxy resin curing agent: 25 parts;

[0034] E51 epoxy resin: 100 parts;

[0035] Other fillers: 0 parts;

[0036] The preparation method of described high damping graphene composite material is as follows:

[0037] Weigh 0.01 parts of spherical graphene, add it to 25 parts of T31 epoxy resin curing agent, ultrasonically disperse for 30 minutes under 500W power ultrasound, and magnetically stir evenly; the uniformly dispersed spherical graphene / T31 epoxy resin curing agent mixed system Add it into the epoxy res...

Embodiment 2

[0040] In this embodiment, a high damping graphene composite material, the content of each component is calculated in parts by weight:

[0041] Spherical graphene prepared by spray drying method: 0.1 part; spherical graphene should be a hollow spherical structure, wherein the spherical graphene particle size distribution range is between 0.5 and 1 micron, and the thickness of the outer wall of the hollow spherical shape is between 0.05 and 0.1 micron;

[0042] T31 epoxy resin curing agent: 25 parts;

[0043] E51 epoxy resin: 100 parts;

[0044] Carbon nanotube: 0.05 parts;

[0045] The preparation method of described high damping graphene composite material is as follows:

[0046] Weigh 0.1 parts of spherical graphene, add it to 25 parts of T31 epoxy resin curing agent, ultrasonically disperse for 40 minutes under 500W power ultrasound, and magnetically stir evenly; the uniformly dispersed spherical graphene / T31 epoxy resin curing agent mixed system and 0.05 parts of carbon...

Embodiment 3

[0049] In this embodiment, a high damping graphene composite material, the content of each component is calculated in parts by weight:

[0050] Spherical graphene prepared by spray drying method: 0.5 parts; spherical graphene should be a hollow spherical structure, wherein the spherical graphene particle size distribution range is between 5 and 10 microns, and the thickness of the outer wall of the hollow spherical shape is between 0.1 and 0.2 microns;

[0051] T31 epoxy resin curing agent: 30 parts;

[0052] E51 epoxy resin: 100 parts;

[0053] Nanoclay: 0.1 part;

[0054] The preparation method of described high damping graphene composite material is as follows:

[0055] Weigh 0.5 parts of spherical graphene, add it to 30 parts of T31 epoxy resin curing agent, ultrasonically disperse for 60 minutes under 800W power ultrasound, and magnetically stir evenly; the uniformly dispersed spherical graphene / T31 epoxy resin curing agent mixed system and 0.2 parts of nanoclay were a...

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Abstract

A high damping graphene / polymer composite material and a preparation method thereof, the invention relates to the application field of graphene materials, in particular to a high damping graphene composite material and a preparation method thereof. Using graphene or graphene oxide as raw material, hollow spherical graphene is obtained by spray drying, electrostatic spray freeze drying, template etching and other methods. The spherical graphene is dispersed in the epoxy resin curing agent, and the graphene / epoxy curing agent composite system in which the spherical graphene is uniformly dispersed is obtained by simple mechanical stirring or ultrasonic treatment. The spherical graphene / epoxy resin curing agent composite system is added to the epoxy resin, and the epoxy resin composite system in which the spherical graphene is uniformly dispersed can be obtained by mechanical stirring and defoaming treatment after curing. The spherical graphene / epoxy resin composite material of the invention effectively combines the excellent properties of the epoxy resin itself, and effectively improves the damping performance of the epoxy resin by regulating the interaction between the hollow spherical graphene and the epoxy resin molecular chain. Mechanical strength and thermal stability.

Description

technical field [0001] The invention relates to the application field of graphene materials, in particular to a high-damping graphene / polymer composite material and a preparation method thereof. Background technique [0002] Graphene is a new type of nano-carbon material. It has a unique planar two-dimensional structure and excellent physical and chemical properties, and has attracted extensive attention from the scientific and industrial circles since its inception. Graphene has a unique planar two-dimensional structure, excellent interlayer shear-slip properties, extremely good shape controllable properties, stable chemical properties and good environmental inertness. It is an ideal nanofiller. Adding graphene to polymer composites can significantly improve the mechanical properties of the material. [0003] In recent years, based on the excellent mechanical enhancement properties of graphene, graphene / polymer matrix composites have become a research hotspot, and a large ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K7/24C08K3/04C08K3/34
CPCC08K7/24C08K3/042C08K3/041C08K3/346C08K2201/003C08K2201/011C08L2201/08C08L63/00
Inventor 王函曾尤英哲成会明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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