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Fiber material for bicycle wheel rim and preparation process of fiber material

A preparation process and fiber filament technology, which is applied in the field of fiber filament materials and preparation technology for bicycle rims, can solve problems such as deformation, fast heating speed, and fracture, and achieve the effect of simple process and reasonable formula

Pending Publication Date: 2019-07-09
WEIHAI BAOWEI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the face of some long-distance and steep road sections, the frictional heating power of the rim and brake pads increases sharply. The existing open-ended rims made of fiber filament composite materials generally have a fast heating rate and the rim loses strength at high temperatures. Unable to support the load brought by the tire pressure and the weight of the player, deformation or even fracture occurs, therefore, there is an urgent need for a high-temperature-resistant bicycle rim material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of fiber silk material for bicycle rim, the formula of this fiber silk material is made up of the glue solution of carbon fiber and bonded carbon fiber, the weight ratio of described carbon fiber and glue solution of bonded carbon fiber is carbon fiber 50 parts, glue solution 20 parts part, the formula of described glue is made up of epoxy resin, curing agent, toughening agent of at least three functional groups, and the parts by weight of described epoxy resin, curing agent, toughening agent are respectively 80 parts of epoxy resin , 30 parts of curing agent, 10 parts of toughening agent, the curing agent is 4,4-diaminophenyl sulfone, and the epoxy resin with three functional groups is 4,5-epoxyhexane-1,2 - Diglycidyl diformate (TDE-85 epoxy resin) is alicyclic glycidyl trifunctional epoxy resin, the toughening agent is polybutadiene rubber, and the epoxy resin adopts epoxy value of 0.86 -0.91eq. / 100g, the epoxy equivalent is 109-115 g / eq, the molecular weight o...

Embodiment 2

[0026] A fiber filament material for a bicycle wheel rim, the formulation of the filament material is composed of aramid fiber and a glue that binds aramid fiber, and the weight ratio of the aramid fiber and the glue that binds aramid fiber is It is 50 parts of fiber filaments and 20 parts of glue solution. The formula of the glue solution is composed of epoxy resin, curing agent and toughening agent with at least three functional groups. The epoxy resin, curing agent and toughening agent are The parts by weight are 80 parts of epoxy resin, 30 parts of curing agent, and 10 parts of toughening agent. The curing agent is 4,4-diaminophenyl sulfone, the toughening agent is polybutadiene rubber, and the ring The epoxy resin adopts an epoxy value of 0.86-0.91eq. / 100g, an epoxy equivalent of 109-115 g / eq, a molecular weight of 4,4-diaminophenylsulfone of 248.3, a melting point of 175-177 degrees Celsius, and a water-soluble Less than 0.1g / 100ml (at 20 degrees Celsius), the polybutadien...

Embodiment 3

[0028] The difference between this embodiment and Example 1 is that there are 80 parts of carbon fiber and 50 parts of glue solution. The formula of the glue solution is composed of epoxy resin with at least three functional groups, curing agent and toughening agent. The epoxy resin The parts by weight of , curing agent and toughening agent are respectively 120 parts of epoxy resin, 40 parts of curing agent and 20 parts of toughening agent. Other parameters are the same. The epoxy resin adopts AG-80H high temperature resistant epoxy resin, which is obtained after drying The bicycle rim made of material is resistant to high temperature of 154 degrees.

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Abstract

The invention relates to the technical field of carbon fiber, and more particularly to a fiber material for a bicycle wheel rim and a preparation process of the fiber material. The fiber material is composed of, in parts by weight, 50-80 parts of fiber and 20-50 parts of glue solution of viscose fiber, wherein the glue solution comprises the following components in parts by weight: 80-120 parts ofepoxy resin having at least three functional groups, 30-40 parts of curing agent, and 10-20 parts of flexibilizer. The preparation process comprises the following steps: (1) preparing the glue solution; (2) applying the glue solution; and (3) carrying out compounding. The fiber material can be finally obtained according to the formula and through the process steps, and has the advantages of reasonable formula, simple process, resistance to high temperature, and the like.

Description

technical field [0001] The invention relates to the technical field of carbon fibers, in particular to a fiber filament material for bicycle rims with reasonable formula, simple process and high temperature resistance and a preparation process. Background technique [0002] As we all know, with the improvement of people's living standards, the demand for high-end bicycles is increasing, and cycling is becoming more and more popular. People begin to pursue lighter cycling tools. Carbon fiber composite materials are very suitable for manufacturing For lightweight bicycles, aramid fiber is a new type of high-tech synthetic fiber with excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, insulation, anti-aging, and long life cycle. At present, The fiberization trend of high-end bicycles is becoming more and more obvious. [0003] At present, in order to pursue the ultimate light weight of the racin...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L9/00C08L77/10C08K7/06C08K3/36
CPCC08L63/00C08L77/10C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L9/00C08K7/06C08K3/36
Inventor 姜波
Owner WEIHAI BAOWEI NEW MATERIAL TECH CO LTD