Graphene/cast nylon composite material and preparation method thereof

A composite material and casting nylon technology, which is applied in the field of composite materials to achieve the effects of shortened distance, enhanced bonding force and densified structure

Active Publication Date: 2017-08-18
HANGZHOU GAOXI TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few work reports on the optimization of the properties of graphene itself

Method used

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  • Graphene/cast nylon composite material and preparation method thereof
  • Graphene/cast nylon composite material and preparation method thereof
  • Graphene/cast nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) drying the monolayer graphene oxide dispersion by atomization drying method to obtain graphene oxide microspheres, the atomization temperature is 130°C;

[0025] (2) placing the graphene oxide microspheres obtained in step (1) in hydrazine hydrate vapor, and reducing them for 1 hour at 60° C. to obtain reduced graphene oxide microspheres;

[0026] (3) Putting the reduced graphene oxide microspheres obtained in step (2) into a tube furnace, continuously feeding nitrogen, and raising the temperature to 1000° C., and keeping it warm for 1 hour to obtain paper ball-shaped graphene microspheres;

[0027] (4) Add 0.2 parts of paper-like graphene microspheres to 100 parts of molten caprolactam monomer, stir and heat up to 120°C, remove moisture by distillation under reduced pressure, then add 0.15 parts of sodium hydroxide, and heat up to 140°C, After vacuum distillation and dehydration for 30 minutes, the temperature was raised to 155°C;

[0028] (5) Add 0.35 parts of co...

Embodiment 2

[0031] (1) drying the monolayer graphene oxide dispersion by atomization drying method to obtain graphene oxide microspheres, the atomization temperature is 130°C;

[0032](2) placing the graphene oxide microspheres obtained in step (1) in hydrazine hydrate vapor, and reducing them for 1 hour at 90° C. to obtain reduced graphene oxide microspheres;

[0033] (3) Putting the reduced graphene oxide microspheres obtained in step (2) into a tube furnace, continuously feeding nitrogen, and raising the temperature to 1000° C., and keeping it warm for 1 hour to obtain paper ball-shaped graphene microspheres;

[0034] (4) Add 0.2 parts of paper-like graphene microspheres to 100 parts of molten caprolactam monomer, stir and heat up to 120°C, remove moisture by distillation under reduced pressure, then add 0.15 parts of sodium hydroxide, and heat up to 140°C, After vacuum distillation and dehydration for 30 minutes, the temperature was raised to 155°C;

[0035] (5) Add 0.35 parts of coc...

Embodiment 3

[0038] (1) drying the monolayer graphene oxide dispersion by atomization drying method to obtain graphene oxide microspheres, the atomization temperature is 130°C;

[0039] (2) placing the graphene oxide microspheres obtained in step (1) in hydrazine hydrate vapor, and reducing them for 24 hours at 90° C. to obtain reduced graphene oxide microspheres;

[0040] (3) Putting the reduced graphene oxide microspheres obtained in step (2) into a tube furnace, continuously feeding nitrogen, and raising the temperature to 1000° C., and keeping it warm for 1 hour to obtain paper ball-shaped graphene microspheres;

[0041] (4) Add 0.2 parts of paper-like graphene microspheres to 100 parts of molten caprolactam monomer, stir and heat up to 120°C, remove moisture by distillation under reduced pressure, then add 0.15 parts of sodium hydroxide, and heat up to 140°C, After vacuum distillation and dehydration for 30 minutes, the temperature was raised to 155°C;

[0042] (5) Add 0.35 parts of ...

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Abstract

The invention discloses a graphene/cast nylon composite material and a preparation method thereof. The composite material is formed by combination of paper wad shaped graphene microspheres and cast nylon. The composite material is prepared by steps: preparing the paper wad shaped graphene microspheres, mixing with caprolactam melt, and performing cast polymerization. The obtained paper wad shaped graphene microspheres are excellent in mechanical property and elasticity, effective in impact absorption, high in stability and great in dispersity when being added into the cast nylon, and owing to the paper wad structure, graphene stacking is reduced, and accordingly integral stability is improved. In addition, under the condition of external force application, the graphene microspheres are capable of completely absorbing stress, and integral lubricity of the material can be improved.

Description

technical field [0001] The invention belongs to the field of composite materials, and relates to a graphene / cast nylon composite material and a preparation method thereof. Background technique [0002] Graphene is a one-atom-thick two-dimensional single-layer layered material composed of carbon six-membered rings. Graphene itself has high strength (130GPa), high thermal conductivity (5000W m -1 K -1 ), high conductivity (10 8 S m -1 ) and high chemical stability have received extensive attention from researchers since their discovery. The performance of the material assembled by graphene itself is limited by the assembly method and molding process, and the unique properties of graphene cannot be fully utilized at present. Therefore, the use of graphene in the preparation of composite materials is one of the mainstream directions of graphene applications. . Nylon 6 (polyamide 6) is the product with the largest output and the most widely used in nylon engineering materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/16C08K9/02C08K9/04C08K9/00C08K7/18C08K3/04
CPCC08G69/16C08K3/04C08K7/18C08K9/00C08K9/02C08K9/04C08K2201/003C08K2201/006
Inventor 高超陈琛韩燚
Owner HANGZHOU GAOXI TECH CO LTD
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