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A plant fiber hybrid composite frame structure

A composite material and plant fiber technology, which is applied in the field of composite material manufacturing, can solve problems such as non-recyclability and harm to the environment, and achieve the effect of saving processes and manufacturing costs.

Active Publication Date: 2019-05-21
ACC BEIJING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But a potential disadvantage of a carbon fiber composite bike is that it becomes non-recyclable solid waste after use, harming the environment, so bicycle structures made of natural materials are becoming a new scooter option

Method used

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  • A plant fiber hybrid composite frame structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 (prepreg, layered hybrid)

[0045] (1) Select a ready-made carbon fiber composite frame structure and all its tooling, fixtures, vehicle manufacturing equipment and its process technology system as a prototype. The prepregs of this prototype are all medium temperature epoxy resin carbon fiber prepregs.

[0046] (2) According to the manufacturing process of the original carbon fiber structure, select the corresponding jute prepreg to wrap on the innermost layer, the second layer, and the third layer of the structural mold; then select the carbon fiber prepreg originally used for the vehicle to wrap it, There are 4 layers in total, and the coiled tube is formed into a tubular part with a gradient structure in density and stiffness from the surface to the inside, that is, "layered gradient structure". Among them, all prepreg matrix resins are the same medium temperature epoxy resin.

[0047] (3) The above-mentioned parts are molded and cured according to the orig...

Embodiment 2

[0049] Example 2 (prepreg, interlayer hybrid)

[0050] (1) With reference to above-mentioned embodiment 1, select the plain weave of a kind of ramie fiber and carbon fiber hybrid weaving, twill or satin weave fabric prepreg, and a kind of carbon fiber prepreg as basic material, ramie / carbon fiber hybrid prepreg As the inner layer of the frame tube profile, there are 3 layers in total, and the outer layer of pure carbon fiber prepreg is 4 layers in total. The coiled tube is formed into a tube shape with a gradient structure from the surface to the inside.

[0051] (2) Since the two selected prepregs are impregnated with the same medium-temperature epoxy resin, the above-mentioned parts are molded and cured according to the curing process of the epoxy resin, and a kind of "intra-layer hybrid" and "layered" is obtained. The so-called "double-hybrid" new frame structure that is used in combination with gradient hybridization.

[0052] In this embodiment, it is found that the "dou...

Embodiment 3

[0053] Embodiment 3 (pultrusion, layered hybrid)

[0054] (1) Select an existing (traditional) pultrusion equipment, including its corresponding mold (die), tooling, fixtures, etc., and its pultrusion technology as a prototype, and select an existing medium temperature curing vinyl epoxy resin As a matrix resin for pultruded products.

[0055] (2) Select sisal fiber yarn and carbon fiber or glass fiber tow, place sisal yarn on the inner wall of the pultruded profile, and place carbon fiber or glass fiber tow on the outer wall of the pultruded profile, that is, carbon fiber or glass Double-layer structure of fiber tow wrapped sisal yarn, followed by traditional pultrusion and curing according to the total fiber volume fraction of the profile (50-80%, including carbon fiber or glass fiber and sisal fiber) and resin viscosity , to obtain profile parts with gradient structure of density and stiffness from the surface to the inside.

[0056] In this embodiment, it is found that t...

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Abstract

The invention belongs to the manufacturing technology of composite materials, and relates to a plant fiber composite material rack structure mixed with plant fiber and carbon fiber or fiberglass. The density, stiffness or intensity of the cross section of the rack main body emerges in gradient distribution from exterior to interior. The carbon fiber or fiberglass and plant fiber of the component material emerge in gradient distribution from exterior to interior. The plant fiber is a hollow or multihole material. The connection reinforcing material of each main body is combined with short carbon fiber or fiberglass and plant fiber. The design and manufacture of mixed fiber pipe material or section are in gradient distribution from exterior to interior in order to improve the manufacturing efficiency and reduce production cost. The manufacturing of the mixed fiber pipe material or section is capable of being achieved by rolling tube technology or pultrusion technology in other embodiments.

Description

technical field [0001] The invention belongs to composite material manufacturing technology, and relates to a vehicle frame structure of plant fiber hybrid composite material which utilizes plant fiber mixed with carbon fiber or glass fiber. Background technique [0002] Carbon fiber reinforced composite bicycles have become a representative of lightweight vehicle technology, and their design and manufacturing technologies have been modularized and standardized. In recent years, this composite material technology has been promoted and applied to other rickshaws, children's vehicles, and even electric bicycles. . But a potential disadvantage of a carbon fiber composite bike is that it becomes non-recyclable solid waste after use, harming the environment, so bicycle structures made of natural materials are becoming a new scooter option. [0003] Refer to the international PCT invention patent application "a composite material containing plant fiber fabrics and its preparation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62K19/02C08L63/00C08L63/10C08L77/00C08L67/02C08L23/12C08L1/02C08K7/06C08K7/14
CPCB62K19/02C08L23/12C08L63/00C08L63/10C08L67/02C08L77/00C08L2205/16C08L1/02C08K7/06C08K7/14
Inventor 益小苏张元晋仝建峰刘克健
Owner ACC BEIJING SCI & TECH CO LTD
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