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Carbon fiber/epoxy resin composite material for bicycle and preparing method thereof

A technology of epoxy resin and composite materials, which is applied in the field of composite materials, can solve the problems of reduced heat resistance and impact resistance of composite materials, and achieve the effects of easy operation, excellent mechanical properties and low raw material prices

Inactive Publication Date: 2016-12-07
陆志强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is easy to reduce the heat resistance and impact resistance of composite materials

Method used

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  • Carbon fiber/epoxy resin composite material for bicycle and preparing method thereof

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Embodiment 1

[0033] A carbon fiber / epoxy resin composite material for bicycles, in parts by weight, comprising the following components:

[0034] 1 part of carbon fiber, 30 parts of epoxy resin,

[0035] 2 parts of floating beads, 3 parts of gelatin,

[0036] 2 parts of medical stone powder, 1.5 parts of coupling agent,

[0037] 2 parts of curing agent, 1 part of accelerator.

[0038] Its preparation method comprises the following steps:

[0039] (1) Mix and stir carbon fiber, coupling agent, floating beads, medical stone powder and absolute ethanol evenly, sonicate for 1 hour at a power of 800W, remove the solvent, mix and stir evenly with liquid bisphenol A phenolic resin, and transfer to an autoclave , sonicated at 100°C for 30 minutes to obtain mixture A;

[0040] (2) Mix the solid bisphenol A type epoxy resin and gelatin evenly, add the mixture A obtained in step (1), ultrasonicate for 1h, add curing agent and accelerator, stir and mix evenly, after vacuuming to remove air bubbles...

Embodiment 2

[0042] A carbon fiber / epoxy resin composite material for bicycles, in parts by weight, comprising the following components:

[0043] 3 parts of carbon fiber, 50 parts of epoxy resin,

[0044] 5 parts of floating beads, 8 parts of gelatin,

[0045] 3 parts of medical stone powder, 3 parts of coupling agent,

[0046] 5 parts of curing agent, 2 parts of accelerator.

[0047] Its preparation method comprises the following steps:

[0048] (1) Mix and stir carbon fiber, coupling agent, floating beads, medical stone powder and absolute ethanol evenly, sonicate for 2 hours at 800W power, remove solvent, mix and stir evenly with liquid bisphenol A phenolic resin, and transfer to an autoclave , sonicated at 120°C for 60 minutes to obtain mixture A;

[0049] (2) Mix the solid bisphenol A type epoxy resin and gelatin evenly, add the mixture A obtained in step (1), ultrasonicate for 2 hours, add curing agent and accelerator, stir and mix evenly, after vacuuming to remove air bubbles, t...

Embodiment 3

[0051] A carbon fiber / epoxy resin composite material for bicycles, in parts by weight, comprising the following components:

[0052] 1.5 parts of carbon fiber, 35 parts of epoxy resin,

[0053] 3 parts of floating beads, 4 parts of gelatin,

[0054] 2.2 parts of medical stone powder, 1.8 parts of coupling agent,

[0055] 3 parts of curing agent, 1.2 parts of accelerator.

[0056] Its preparation method comprises the following steps:

[0057] (1) Mix and stir carbon fiber, coupling agent, floating beads, medical stone powder and absolute ethanol evenly, sonicate at 800W for 1.2h, remove solvent, mix and stir evenly with liquid bisphenol A phenolic resin, and transfer to an autoclave , sonicated at 105°C for 40 minutes to obtain mixture A;

[0058] (2) Mix solid bisphenol A type epoxy resin and gelatin evenly, add the mixture A obtained in step (1), ultrasonic 1.2h, add curing agent, accelerator, stir and mix evenly, after vacuumizing to get rid of air bubbles, put The mixt...

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Abstract

The invention discloses a carbon fiber / epoxy resin composite material for a bicycle. The carbon fiber / epoxy resin composite material is prepared from, by weight, 1-3 parts of carbon fiber, 30-50 parts of epoxy resin, 2-5 parts of floating bead, 3-8 parts of gelatin, 2-3 parts of medical stone powder, 1.5-3 parts of coupling agent, 2-5 parts of curing agent and 1-2 parts of accelerant. The invention further discloses a preparing method of the composite material. The composite material is high in heat and abrasion resistance, high in specific strength and excellent in impact resistance and has certain corrosion resistance.

Description

Technical field: [0001] The invention relates to the technical field of composite materials, in particular to a carbon fiber / epoxy resin composite material for bicycles. Background technique: [0002] Carbon fiber reinforced epoxy resin composites are widely used in aerospace, sports and leisure products, civil engineering, electronic products, bicycles and other fields due to their light weight, high strength, corrosion resistance and excellent weather resistance. [0003] When carbon fiber / epoxy resin composite materials are used in the manufacture of carbon fiber bicycles, it is necessary to meet the preparation process of composite materials and the manufacturing process of carbon fiber bicycles. Since the cured epoxy resin molecules form a three-dimensional network structure, when receiving external loads to generate microcracks, the cracks are easy to expand, resulting in poor toughness; at the same time, the interface between carbon fiber and epoxy resin is chemically...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L89/00C08K9/04C08K9/06C08K7/26C08K7/24C08K7/06C08J5/04
CPCC08L63/00C08J5/042C08J2363/00C08J2463/00C08K2201/003C08K2201/004C08K2201/014C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08L89/00C08K9/04C08K9/06C08K7/26C08K7/24C08K7/06
Inventor 陆志强
Owner 陆志强
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