Composite bush

A technology of bushings and carbon nanotubes, applied in connection components, fireproof coatings, polyether coatings, etc., can solve the problems of complex preparation process, inconvenient replacement, low yield, etc., achieve excellent mechanical properties, reduce weight, improve The effect of flexibility

Active Publication Date: 2017-01-04
江苏同庆车辆配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Orbe bushing is a bush made of ductile iron, which is mainly used in railway transport vehicles. In order to achieve various effects such as wear resistance and anticorrosion, there are various requirements for the preparation material, treatment pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The composite bushing of the present invention uses polycarbonate engineering plastics as the substrate of the composite bushing, adds 35% glass fiber reinforcements inside the polycarbonate engineering plastics, prepares carbon nanotube reinforcements on the substrate, and adds carbon nanotube reinforcements to the substrate. The outer surface of the body is painted with a flame retardant film.

[0037] Among them, the carbon nanotube reinforcement is composed of the following components by mass, 22% ethanol solvent, 8% potassium hydroxide pH regulator, 12% terminal polyacrylic acid coupling agent, 18% nano calcium oxide dispersant, 40% amino multi-walled carbon nanotubes.

[0038] Take the polycarbonate engineering plastic containing glass fiber reinforcement and dry it in an oven at 60°C for 2 hours; add the terminal polyacrylic acid coupling agent to the ethanol solution, adjust the pH to about 6 with potassium hydroxide, and stir to obtain Clarified coupling agent...

Embodiment 2

[0043] The composite bushing of the present invention uses polyphenylene sulfide engineering plastics as the substrate of the composite bushing, adds 40% glass fiber reinforcement inside the polyphenylene sulfide engineering plastics, and prepares carbon nanotube reinforcements on the substrate. The outer surface of the pipe reinforcement is painted with a flame retardant film.

[0044] Among them, the carbon nanotube reinforcement is composed of the following components in parts by mass, 23% acetone solvent, 7% sodium nitrate pH regulator, 15% terminal polyacrylic acid coupling agent, 13% nano-titanium dioxide dispersant, 42% mercaptopolymer walled carbon nanotubes.

[0045] Take the polyphenylene sulfide engineering plastic containing glass fiber reinforcement and dry it in an oven at 70°C for 1.5 hours; add the terminal polyacrylic acid coupling agent to the acetone solution, adjust the pH to about 6.5 with sodium nitrate, and stir. Obtain a clear coupling agent hydrolyzat...

Embodiment 3

[0050] The composite bushing of the present invention uses polyamide engineering plastics as the matrix of the composite bushing, adds 44% PE fiber reinforcements inside the polyamide engineering plastics, prepares carbon nanotube reinforcements on the matrix, and adds carbon nanotube reinforcements to the matrix. The outer surface is painted with flame retardant film.

[0051] Among them, the carbon nanotube reinforcement is composed of the following components by mass, 16% acetone solvent, 6% sodium hydroxide pH regulator, 14% aluminate coupling agent, 14% nano calcium oxide dispersant, 50% mercapto multi-walled carbon nanotubes.

[0052] Take the polyamide engineering plastic containing PE fiber reinforcement and dry it in an oven at 70°C for 1.5 hours; add the aluminate coupling agent to the acetone solution, adjust the pH to about 6.5 with sodium hydroxide, and stir to obtain Clarified coupling agent hydrolyzate; immerse the dried polyamide engineering plastic in the cou...

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PUM

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Abstract

The invention discloses a composite bush. Engineering plastic is used as a matrix of the composite bush, a carbon nanotube reinforcement is prepared on the matrix, and a flame-retardant film is arranged on the outer surface of the carbon nanotube reinforcement. While the using strength and hardness are guaranteed, the weight can be reduced effectively, reinforcement fibers are added in the matrix in a preparation process, in a carbon nanotube reinforcement preparation process, a functional organic compound and a functional oligomer, namely coupling agents, are used, functional multi-walled carbon nanotubes and glass fibers are linked well to obtain the reinforcement which has excellent mechanical properties, shearing strength between layers and toughness, while the adhesive force between the carbon nanotubes and the glass fibers is improved, the distance between the carbon nanotubes and the glass fibers is increased through the structural design of active organic molecules, flexibility of the carbon nanotubes is improved, and the toughness of the carbon nanotubes is played fully; and meanwhile, the composite bush has good wear resistance and corrosion resistance.

Description

technical field [0001] The invention relates to an accessory for railway transportation, in particular to a bush made of composite material. Background technique [0002] As a kind of ring sleeve that acts as a gasket, the bushing is of great significance in mechanical use. The use of the bushing can effectively prevent the damage of the parts. During the maintenance process, there is no need to replace the parts, only the bushing needs to be replaced, which can Cost savings to a large extent. Aubey bushing is a bush made of ductile iron, which is mainly used in railway transport vehicles. In order to achieve various effects such as wear resistance and anticorrosion, there are various requirements for the preparation material, treatment process and surface of Aubey bushing. Due to the limitation, the preparation process is complicated and the yield rate is not high. At the same time, nodular cast iron is used as the main preparation raw material, which is heavy and inconven...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L81/02C08L77/00C08L23/06C08K7/14C08J7/04C08J7/06C09D129/04C09D129/14C09D171/02C09D5/18C09D7/12C09D7/06F16B43/00C09D7/47
CPCC08J7/04C08J7/06C08J2369/00C08K7/14C08L77/00C08L2205/16C09D5/18C09D101/284C09D129/04C09D129/14F16B43/00C08L69/00C08L25/06C08K7/08C08K3/34C08L81/02C08K3/04C08L23/06C08L71/02C08L5/16C08K2003/2227
Inventor 陆延保
Owner 江苏同庆车辆配件有限公司
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