CN106741500A - A kind of string hybrid composite body frame structure for automotive - Google Patents

A kind of string hybrid composite body frame structure for automotive Download PDF

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Publication number
CN106741500A
CN106741500A CN201611031399.5A CN201611031399A CN106741500A CN 106741500 A CN106741500 A CN 106741500A CN 201611031399 A CN201611031399 A CN 201611031399A CN 106741500 A CN106741500 A CN 106741500A
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Prior art keywords
string
composite
carbon fiber
frame structure
glass fibre
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CN106741500B (en
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益小苏
张元晋
仝建峰
刘克健
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Avic Composites (beijing) Technology Co Ltd
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Avic Composites (beijing) Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C08L63/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention belongs to manufacture technology of composite material, it is related to a kind of utilization string with carbon fiber or the string hybrid composite body frame structure for automotive of glass fiber hybrid.Density, rigidity or intensity on the main part section of composite frame structure are presented gradient distribution from outward appearance to inner essence, from outward appearance to inner essence carbon fiber or glass fibre and string are gradient distribution to composite, string is hollow or porous material, and the reinforcing material of the connector of each main part is the composite combined by chopped carbon fiber or glass fibre and string.The present invention reduces product cost to improve manufacture efficiency, and from outward appearance to inner essence gradient-structure is also embodied in the design and manufacture of assorted fibre tubing or section bar.It is described to mix tubing or section bar is prepared and realized using rolling tube technique, and in other implementation methods, it would however also be possible to employ pultrusion technique realization.

Description

A kind of string hybrid composite body frame structure for automotive
Technical field
The invention belongs to manufacture technology of composite material, it is related to one kind using string and carbon fiber or glass fiber hybrid String hybrid composite body frame structure for automotive.
Background technology
Carbon fibre reinforced composite bicycle has turned into a representative of light vehicle technology, its design and fabrication technology Modularization, standardization, in recent years, this composite technology is even more and is applied to other rickshaws, carriage for children, or even The fields such as electric bicycle.But one of carbon fibre composite car potentially has the disadvantage that it turns into not recyclable after use The solid waste rubbish for utilizing, endangers environment, therefore, the bicycle structure of natural material turns into a kind of new scooter Option.
With reference to International PCT application for a patent for invention " a kind of composite containing vegetable fibre fabric and preparation method thereof " (application number PCT/CN2013/072087) and its Europe and America application for a patent for invention " Composite material Containing plant fiber fabrics and preparation method thereof " (European Patent Application No.s EP 2 821 226 A1, U.S. Patent publication number US-2015-0044924-A1) disclose a kind of surface of string Processing method is used to prepare the string enhancing composite of mechanical characteristic high.It is " a kind of with reference to International PCT application for a patent for invention Structural and decorative composite material, its technology of preparing, and the product comprising it " (application number PCT/CN2015/098063) is carried Go out the mechanical property that a kind of multiple dimensioned, multi-level treatment method further lifts string enhancing composite, while Assign composite product external decoration effect attractive in appearance.These patents can be regarded as the basis of present patent application.
The content of the invention
It is an object of the invention to provide a kind of design of use string hybrid composite, the skill of manufacture cycle frame The hybrid design and manufacturing technology of art, particularly string and other reinforcing fibers.
Technical solution of the invention is, density, rigidity on the section of the main part of composite frame structure Or intensity is presented gradient distribution from outward appearance to inner essence, what is be from outward appearance to inner essence distributed is followed successively by carbon fiber or glass fibre and string Composite, string is hollow or porous material, and the reinforcing material of the connector of each main part is chopped carbon fiber Or glass fibre and the composite of string combination.
Described string is selected from following material：Ramie, jute, sisal hemp, bluish dogbane or mestha.
Resin in the composite is selected from：Epoxy resin, vinylite, unsaturated polyester (UP) or polyurethane.
The method for preparing string hybrid composite body frame structure for automotive, its method includes：Forming composite vehicle frame knot The main part and connector of structure,
(1) method of a forming body part is one of following
4.1 laminarizations are combined：Pure carbon fiber or glass fibre prepreg are laid on the outer layer of composite frame, then will Pure plant fiber prepreg is laid on the internal layer of composite frame, according to the shaping of pipe rolling technique technology or pultrusion；
4.2 interlaminar hybrids are combined：Blended fabric in carbon fiber or glass fibre or string is carried out into laying, by height The carbon fiber or glass fibre prepreg of body point are laid on the outer layer of composite frame, then divide string by body high in fabric Prepreg be laid on the internal layer of composite frame, according to the shaping of pipe rolling technique technology or pultrusion；
(2) it is molded the method for connector
By chopped carbon fiber or glass fibre and string combination, wherein, carbon fiber or glass fibre in fibre fractionation Volume ratio be 50%, the volume ratio 50% of string, volume fraction of the fiber in pellet between 10-35%, resin Volume fraction in pellet is granulated fibre-reinforced resin in 65-90%, then by pellet injection moulding；
(3) composite frame is assembled
Main part and connector are assembled into vehicle frame to be glued, string hybrid composite vehicle frame is completed.
Decorative plant fiber cloth is laid on the outermost layer of composite frame pure carbon fiber or glass fibre prepreg, It is molded according to pipe rolling technique technology, obtaining a kind of surface has ornamental composite frame structure.
The chopped strand of described connector is：Ramie, jute, sisal hemp, bluish dogbane or kenaf and carbon fiber or glass Fiber.
The resin of described connector is selected from：Nylon, PET or PP injection molding materials.
String of the present invention has at least one of following characteristics：For string and its classification of fabric Do not limited with type, can be any of string and its fabric in the prior art, as long as prepared therefrom compound The performance of material disclosure satisfy that the requirement of application.
Hemp fabric of the present invention is selected from following natural material：Ramie, jute, flax, Chinese fiber crops (hemp), ocean Fiber crops, bluish dogbane or sisal hemp.
The present invention is not particularly limited for the resin used by string and its hybrid composite, as long as using the tree Composite prepared by fat disclosure satisfy that application performance requirement.In some embodiments, the resin is selected from：Asphalt mixtures modified by epoxy resin Fat, vinylite, unsaturated polyester (UP), polyurethane.
The reinforcing fiber for mixing used in the present invention has no particular limits, will as long as application performance or function can be met Ask.In some embodiments, the reinforcing fiber for using that mixes with string is selected from following material：Various carbon are fine Peacekeeping glass fibre, but preferably carbon fiber；Make from the shuffling that mixes of various different strings including carbon fiber, glass fibre With.
Different tubing or profile structure in the present invention are preferentially using fibrous material density, rigidity and intensity on closed cross-section The laying from outward appearance to inner essence successively decreased mixes principle, i.e., gradient-structure from outward appearance to inner essence.In some embodiments, described laying is mixed Miscellaneous is that single carbon fiber, glass fibre are positioned over into outer layer, and single string etc. is positioned over into internal layer, so, outward Layer fiber provide not only the anti-bending strength of optimization, and can protect the string of internal layer.And in other implementation methods In, described laying from outward appearance to inner essence mix be not homogenous material laying, but the blended fabric laying of different fiber, for example Outer layer is the string blended fabric laying of carbon fiber or glass fibre and the low body point of Gao Tifen, and internal layer then conversely, its In, the weaving mode of blended fabric is not particularly limited, but not limited to this, as long as application performance or functional requirement can be met i.e. Can.
In order to improve manufacture efficiency, product cost is reduced, the present invention and in some embodiments, from outward appearance to inner essence gradient knot Structure is also embodied in the design and manufacture of assorted fibre tubing or section bar.In some embodiments, it is described mix tubing or Section bar is prepared and can realized using rolling tube technique, and in other implementation methods, it would however also be possible to employ pultrusion technique realization, but not It is limited to this, as long as application performance or functional requirement can be met.
Assorted fibre tubing of the invention or the supporting Vehicle Frame Design of section bar and manufacturing technology must also include pipe fitting and The manufacturing technology of multiple-pass joint.The application and in some embodiments, pipe fitting uses assorted fibre with the manufacture of multiple-pass joint Injection molding technology, from unlike traditional reinforced plastics injection molding technology, the present invention uses the injection of string hybrid buildup pellet Technology, wherein, the material component selection principle of string and its assorted fibre ibid, but not limited to this, as long as can meet should With performance or functional requirement, such as ramie Farraginous carbon fiber that is chopped is chopped, or jute be chopped mix it is glass chopped.It is aobvious So, using tubing, section bar and pipe fitting, the combination mounting technology of multiple-pass joint, the life of composite frame structure will be greatly improved Efficiency and its interchangeability are produced, so as to substantially reduce the integrated cost of manufacture and bicycle structure product.
The present invention is by appearance looks elegant, particularly printing and dyeing in a special case as the non-homogeneous lay of bicycle frame structure There are pattern, the string laying with natural or printing and dyeing color and lusters to be placed on the outer surface of composite product so that this Composite product has required pattern or color and luster, assigns composite product decoration functions, so as to omit this compound The steps such as material product incrustation, save operation, also save manufacturing cost.
As " resource, environmentally friendly " transition and upgrade technical scheme of existing carbon fiber bicycle structural member, the present invention One of important feature be that it can base oneself upon whole frocks, fixture, the shaping manufacturing equipment of existing carbon fiber bicycle structure And its technology system, original carbon fibre material only is instead of with natural sponge part, therefore, it is Bicycle and its similar industries provide a kind of economy easily transition and upgrade new option.
The present invention is more focused on the immingling technology of string and conventional reinforcing fibres, be mainly used in bicycle and Rickshaw with bicycle as representative, even body frame structure for automotive of electric bicycle etc..
Deserve particular mention, for tube section structural bending loads condition, the load of superficial layer is maximum and inside carries Lotus condition very little, accordingly, the present invention manufactures and designs a kind of bionic gradient structure according to the architectural feature of natural bamboo etc., passes through Mixed to inner fibrous material by table, the fibrous material of different mechanical characteristics from outward appearance to inner essence is arranged on tube section, so that Obtain most economical fibrous material using effect.It is additionally, since most plants fiber and porous or hollow-core construction is presented so that this Fiber and its composite are planted with the vibration damping and energy-absorbing characteristic of, is designed with such fiber hybrid and manufacture bicycle knot Structure, will assign and more comfortably be ridden impression compared to pure carbon fiber composite bicycle structure；Furthermore, due to it is this it is porous and Hollow-core construction, also causes that the density of this fiber and its composite is less than carbon fiber, therefore, this gradient-structure assorted fibre The weight of composite bicycle structure, comparatively, less than pure carbon fiber strengthen composite bicycle structure, and Also there is certain competitive advantage in price.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below by the embodiment of the present invention Technical scheme is clearly and completely described.Obviously, described embodiment is a part of embodiment of the invention, rather than Whole embodiments.Based on described embodiments of the invention, those of ordinary skill in the art are without creative work Under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
An aspect of of the present present invention is related to a kind of composite material of plant fiber, particularly pure plant fiber mixed with other fibers Miscellaneous fibrous composite.Because fabric is the hollow structure or loose structure that naturally occur, this structure causes to be combined Material has the characteristics such as vibration damping, damping, shock resistance.
In some embodiments, the fiber is continuous lod product, such as tubing or section bar；And in other realities Apply in mode, the fiber is discontinuous fiber enhanced article, such as enhanced injection molding pipe part of chopped strand or joint.
In some embodiments, embodiments of the invention provide a kind of above-mentioned string hybrid composite tubing or The design and fabrication technology of section bar, mainly bicycle frame structure.The application for the bicycle frame structure type, Shape, pattern, feature structural dimension parameter are not specifically limited, and the product can be cycle frame, front fork, handle, support etc. Structural member, or other rickshaws, carriage for children body frame structure for automotive, including electric bicycle body frame structure for automotive.
In some embodiments, the embodiment of the present invention provide a kind of design of string hybrid composite structure and Manufacturing technology, it includes：Carbon fiber prepreg laying is located at the outermost layer of the product, and string prepreg is located at the carbon fiber Under prepreg overlay (interior).Because the density of carbon fiber, rigidity and intensity are significantly larger than any string, therefore according to The composite of this laying sequence is exactly the gradient composites structure that a kind of density, rigidity and intensity are from outward appearance to inner essence successively decreased, That is the feature structure of this patent.This hybrid design and preparation method, are referred to as laminarization mixing method in this patent.
In some embodiments, the embodiment of the present invention provides the design and manufacture skill of another interlaminar hybrid method Art, it includes：String and other reinforcing fibers are mixed into braiding, for example, mixed woven (tatting), mixed braiding or mix It is knitting, including mixing warp knit and weft knitting, design and prepare different surface densities, so as to the different fabric of mechanical structure performance and preimpregnation Material, then, the principle from outward appearance to inner essence successively decreased according to the core principles of this patent, i.e. density, rigidity and intensity carries out laying placement, Also a kind of gradient-structure is obtained.
In some embodiments, the embodiment of the present invention also provides the pultrusion composite materials tubing that a kind of continuous fiber mixes Or the design and fabrication technology of section bar, in such case, the outermost layer of tubing or section bar is typically all carbon fiber, and internal layer is general All it is string, so as to obtain the gradient composites feature structure from outward appearance to inner essence successively decreased.
Finally, in some embodiments, the embodiment of the present invention also provides a kind of and aforementioned tubes or the supporting pipe of section bar The design and fabrication technology of part or multiple-pass joint, this is mainly the injection molding technology of the chopped pellet of assorted fibre.
Patent of the present invention is described in further details below by specific embodiment.
Embodiment
Raw material sources used are as shown in the table in embodiment.
Following raw material is used in embodiments herein, other raw materials are all conventional, or can be purchased from the market ：
The raw material of table 1 and source
Embodiment 1 (prepreg, laminarization mixes)
(1) select a kind of ready-made carbon fibre composite body frame structure for automotive and its whole frocks, fixture, vehicle manufacturing equipment and Its technology system is used as prototype, all middle temperature epoxy resin carbon fibre prepregs of prepreg of the prototype.
(2) according to the manufacturing process of original carbon fiber structure, corresponding jute prepreg is selected to be wrapped in the structure mold most Internal layer, the 2nd layer, the 3rd layer；Thereon, totally 4 layers, pipe crimping is shaped to by table the former carbon fiber prepreg parcel of the reselection vehicle And inner density, rigidity are the cast product of gradient-structure, i.e., " laminarization gradient-structure ", wherein, all prepreg matrix resins It is same middle temperature epoxy resin.
(3) by above-mentioned product according to the original forming and hardening technique of the body frame structure for automotive, i.e. in this temperature epoxy resin shaping Curing process carries out forming and hardening, obtains appearance carbon fiber, the hybrid composite of the string of internal layered gradient distribution Novel frame structure.
The present embodiment finds, the technical scheme of above-mentioned body frame structure for automotive manufacture is not only simple easy, and mixing of obtaining is multiple Condensation material new structure also has quality lighter and structure-damping.
Embodiment 2 (prepreg, interlaminar hybrid)
(1) with reference to above-described embodiment 1, a kind of ramee and the woven plain weave of carbon fiber hybrid, twill or satin weave are selected Material based on Fabric prereg, and a kind of carbon fiber prepreg, using ramie/carbon fiber hybrid prepreg as frame tube The internal layer of section bar, totally 3 layers, pure carbon fiber prepreg outer layer, totally 4 layers, pipe crimping is shaped to from outward appearance to inner essence the tubular member of gradient-structure.
(2) because two kinds of selected prepregs are impregnated using same middle temperature epoxy resin, by above-mentioned product according to The curing process forming and hardening of the epoxy resin, that is, obtain a kind of " interlaminar hybrid " and mix what is used with " laminarization gradient mixes " The Novel frame structure of so-called " double to mix ".
The present embodiment finds that be somebody's turn to do " double to mix " Novel frame structure has carbon fibrous body fraction higher than embodiment 1, The rigidity of structure and intensity higher in other words.
Embodiment 3 (pultrusion, laminarization mixes)
(1) select a kind of extruding equipment of existing (tradition), including its corresponding mould (mouth mold), frock, fixture etc. and Its pultrude process technology selects a kind of existing intermediate temperature setting vinyl epoxy resin as the matrix of pultrusion product as prototype Resin.
(2) selection sisal fiber yarn and carbon fiber or glass fibre synnema, sisal hemp yarn is placed in drawing and extruding section bar Wall, and carbon fiber or glass fibre synnema are placed in the outer wall of drawing and extruding section bar, i.e., carbon fiber or glass fibre synnema coat sisal hemp The double-decker of yarn, then according to the section bar total fiber volume fraction (50-80%, including carbon fiber or glass fibre and Sisal fiber) and resin viscosity, traditional pultrusion and solidification is carried out, obtain from outward appearance to inner essence density, the type of rigidity gradient structure Material product.
The present embodiment finds that the fiber volume fraction of the drawing and extruding section bar is high, and rigidity and intensity are higher, and pultrusion technique machine Tool degree is high, and manufacture efficiency is high, so as to reduce manufacturing cost.
Embodiment 4 (mixes pellet injection pipe fitting and joint)
(1) traditional chopped carbon fiber or glass fibre, selection chopped string such as jute, bluish dogbane, the sisal hemp of being chopped are selected Fiber, especially selection noil and useless fiber crops material are chopped to reduce the cost of raw material, reselection often with engineering plastics such as nylon, PET or PP etc., according to suitable proportioning, wherein chopped strand score is general between 10-35%, is granulated on conventional comminutor, obtains The chopped strand enhancing pellet that string mixes.
(2) injection mold is manufactured and designed according to pipe fitting and bull adapter piece, it is fine with above-mentioned plant on conventional injection molding machine Dimension mixes chopped strand enhancing pellet carries out conventional injection, obtains corresponding pipe fitting or adapter piece.
(3) above-mentioned pipe fitting mainly uses adhesive bonding technique, its adhesive with the connection of the tubing or section bar of above-described embodiment 1-3 Should be cooperated from, process for treating surface and jointing design and without specifically limited, connector be met with jointing Requirement of strength design is defined.
The present embodiment finds, injection assorted fibre joint compared to original carbon fiber or the joint of glass fiber reinforcement, not only Rigidity, the intensity of itself are still very high, and with significant damping shock absorption effect, this has for composite frame structure Clear advantage.Secondly, this joint has extensive versatility with the connection design of tubing, section bar, easily forms standardization Product, such that it is able to reduces cost, improves efficiency, expands the design space of composite frame structure, is suitable to intention and " crowd The need for wound ".

Claims (7)

1. a kind of string hybrid composite body frame structure for automotive, it is characterized in that, the main part of composite frame structure is cut Density, rigidity on face or intensity are presented gradient distribution from outward appearance to inner essence, composite from outward appearance to inner essence carbon fiber or glass fibre With string for gradient is distributed, string is hollow or porous material, the strengthening material of the connector of each main part Material is the composite combined by chopped carbon fiber or glass fibre and string.
2. a kind of string hybrid composite body frame structure for automotive according to claim 1, it is characterized in that, described plant Fiber is selected from following material：Ramie, jute, sisal hemp, bluish dogbane or mestha.
3. a kind of string hybrid composite body frame structure for automotive according to claim 1, it is characterized in that, the composite wood Resin in material is epoxy resin, vinylite, unsaturated polyester (UP) or polyurethane.
4. the method for preparing string hybrid composite body frame structure for automotive described in claim 1, its method includes：Shaping is compound The main part and connector of material body frame structure for automotive,
(1) method of forming body part is one of following
4.1 laminarizations are combined：Pure carbon fiber or glass fibre prepreg be laid on the outer layer of composite frame, then by pure plant Fibres prepreg is laid on the internal layer of composite frame, according to the shaping of pipe rolling technique technology or pultrusion；
4.2 interlaminar hybrids are combined：Blended fabric in carbon fiber or glass fibre or string is carried out into laying, by Gao Tifen Carbon fiber or glass fibre prepreg be laid on the outer layer of composite frame, then by the pre- of body high in fabric point string Leaching material is laid on the internal layer of composite frame, according to the shaping of pipe rolling technique technology or pultrusion；
(2) it is molded the method for connector
By chopped carbon fiber or glass fibre and string combination, wherein, the body of carbon fiber or glass fibre in fibre fractionation Product is than being 50%, the volume ratio 50% of string.Volume fraction of the fiber in composite pellet between 10-35%, Volume fraction of the resin in pellet is granulated fibre-reinforced resin in 65-90%, then by pellet injection moulding；
(3) composite frame is assembled
Main part and connector are assembled into vehicle frame to be glued, string hybrid composite vehicle frame is completed.
5. it is according to claim 4 prepare claim 1 described in string hybrid composite body frame structure for automotive method, It is characterized in that, decorative plant fabric is laid on the outermost of composite frame pure carbon fiber or glass fibre prepreg Layer, is molded according to pipe rolling technique technology, and obtaining a kind of surface has ornamental composite frame structure.
6. a kind of string hybrid composite body frame structure for automotive according to claim 1, it is characterized in that, described connection The chopped strand of part is：Ramie, jute, sisal hemp, bluish dogbane or kenaf and carbon fiber or glass fibre.
7. a kind of string hybrid composite body frame structure for automotive according to claim 1, it is characterized in that, described connection The resin of part is selected from：Nylon, PET or PP injection molding materials.
CN201611031399.5A 2016-11-18 2016-11-18 A kind of plant fiber hybrid composite body frame structure for automotive Active CN106741500B (en)

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CN107143704A (en) * 2017-06-14 2017-09-08 南京航空航天大学 A kind of high temperature resistance and high strength lightweight hybrid ceramic resin composite materials pipe fitting of fibre reinforced
CN107878652A (en) * 2017-10-19 2018-04-06 中航复材（北京）科技有限公司 A kind of nonmetallic bicycle frame structure and its manufacture method
CN111892751A (en) * 2020-07-04 2020-11-06 湖南瑞亚高科集团有限公司 Sisal fiber and carbon fiber composite material and preparation method thereof

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN107143704A (en) * 2017-06-14 2017-09-08 南京航空航天大学 A kind of high temperature resistance and high strength lightweight hybrid ceramic resin composite materials pipe fitting of fibre reinforced
CN107143704B (en) * 2017-06-14 2018-12-11 南京航空航天大学 A kind of high temperature resistance and high strength lightweight hybrid ceramic-resin composite materials pipe fitting of fibre reinforced
CN107878652A (en) * 2017-10-19 2018-04-06 中航复材（北京）科技有限公司 A kind of nonmetallic bicycle frame structure and its manufacture method
CN111892751A (en) * 2020-07-04 2020-11-06 湖南瑞亚高科集团有限公司 Sisal fiber and carbon fiber composite material and preparation method thereof

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