CN102886935A - Composite material and preparation method thereof and electronic device with composite material - Google Patents
Composite material and preparation method thereof and electronic device with composite material Download PDFInfo
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- CN102886935A CN102886935A CN2011102056116A CN201110205611A CN102886935A CN 102886935 A CN102886935 A CN 102886935A CN 2011102056116 A CN2011102056116 A CN 2011102056116A CN 201110205611 A CN201110205611 A CN 201110205611A CN 102886935 A CN102886935 A CN 102886935A
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Abstract
The invention provides a composite material which comprises a supporting layer and a surface layer, wherein the surface layer is arranged on the supporting layer; the supporting layer is prepared through soaking a first material in a resin combination and then curing the obtained product, the first material has fiber properties, the surface layer is composed of a second material, and the second material has metal properties; the linear thermal expansion coefficient of the resin combination is close to the linear thermal expansion coefficient of the second material; and the first material is a high-strength and high-hardness material. Compared with the prior art, the composite material provided by the invention is high in strength and hardness, and the surface of the composite material has a richer appearance effect. The invention also provides a preparation method of the composite material and an electronic device with the composite material.
Description
Technical field
The present invention relates to field of material synthesis technology, relate in particular to a kind of composite and preparation method thereof.
Background technology
Carbon fiber is organic fiber through carbonization and graphitization processing and the micro crystal graphite material that obtains, and it not only has the intrinsic intrinsic property of material with carbon element, has again flexibility and the machinability of textile fabric concurrently, is fortifying fibre of new generation.Compare with traditional glass fibre (GF), the Young's modulus of carbon fiber is that they are more than 3 times.(KF-49) compares with kevlar fiber, and carbon fiber not only Young's modulus is about its 2 times, and insoluble not swollen, corrosion-resistant in organic solvent, acid, alkali.Just because of the plurality of advantages of carbon fiber, it is widely used in the fields such as automobile, electronics, weaving, military project, sports equipment.
In the production process of the electronic equipments such as notebook computer, panel computer, mobile phone, carbon fibre material usually is used to alleviate the weight of notebook computer, panel computer, mobile phone, increases simultaneously the intensity of its shell.But the continuous carbon fibre precursor that comprises black in the carbon fibre material has had a strong impact on various type and the aesthetics of electronic equipment outward appearance.In order to solve the problem of appearance of product, promote the client to cognition degree and the attention rate of product, often will be on shell spray patterns or decorative pattern.
The coating that spray patterns and decorative pattern use on the shell of carbon fibre material preparation is generally epoxy resin coating.Spraying process comprises: the processing of carbon fibre material surface finish, primer spray, priming paint is carried out surface treatment (for example, polishing, baking vanish), last spray paint.Polishing in the spraying process needs the long time to carry out artificial treatment, consumes a large amount of man power and materials, affects the uniformity of product.In addition, single sprayed coating has limited the appearance effect of carbon fiber product, and visual effect and sense of touch are single.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of composite and preparation method thereof, makes described composite both have high strength, and the surface has again abundanter appearance effect.
For the prior art problem, the invention provides a kind of composite, comprising:
Supporting layer
Surface layer, described surface layer are arranged on the described supporting layer;
Wherein, described supporting layer solidify to form after soaking resin combination by the first material, and described surface layer is comprised of the second material, and described the second material has metallic character; Described the first material has fiber properties; The rigidity value of described supporting layer is greater than the rigidity value of described surface layer.
Preferably, comprise foamed material layer in described supporting layer and/or the surface layer.
Preferably, form figure by polishing, etching, sandblast, dyeing or anodic oxidation at described surface layer.
Preferably, the thermal linear expansion coefficient of the thermal linear expansion coefficient of described supporting layer and described surface layer is complementary.
Preferably, also comprise articulamentum; Described surface layer is attached on the described supporting layer by articulamentum;
Described articulamentum is formed by adhesive cures, and the thermal linear expansion coefficient of described binding agent is less than the thermal linear expansion coefficient of described the second material.
Preferably, described surface thickness is 0.005～0.30mm.
The present invention also provides a kind of composite manufacture method, comprising:
First material that a) will have fiber properties soaks in resin combination, obtains prepreg members;
B) will be at least a slice prepreg members and at least the prefabricated component of a slice with the second material formation of metallic character place that to have a mould hot-forming, obtain described composite; The thermal linear expansion coefficient of described prepreg members and the thermal linear expansion coefficient of described prefabricated component are complementary; Wherein said prepreg members forms supporting layer; Described prefabricated component forms described surface layer.
Preferably, also comprise in advance and by polishing, etching, sandblast, dyeing or anodic oxidation figure is set in described preform surfaces.
The present invention also provides a kind of electronic equipment, comprising:
Electronic devices and components;
Housing, described electronic devices and components are fixedly installed in the described housing, and wherein, at least a portion of described housing is made by composite; Described composite comprises: soaked the supporting layer that solidify to form behind the resin combination and had the surface layer that the second material of metallic character consists of by the first material with fiber properties, described surface layer is arranged on the outer surface of described supporting layer and covers described supporting layer; Wherein, the rigidity value of described supporting layer is greater than the rigidity value of described surface layer, and described supporting layer is used for supporting and protecting described electronic devices and components.
Preferably, the thermal linear expansion coefficient of the thermal linear expansion coefficient of described supporting layer and described surface layer is complementary.
The invention provides a kind of composite, surface layer, described surface layer are arranged on the described supporting layer; Wherein, described supporting layer solidify to form after soaking resin combination by the first material, and described surface layer is comprised of the second material, and described the second material has metallic character; Described the first material has fiber properties; The rigidity value of described supporting layer is greater than the rigidity value of described surface layer.。The prior art of comparing, composite provided by the invention is with the first material, resinous polymer and the second Material cladding, be immersed in the resinous polymer intensity and hardness as the supporting layer reinforced composite with the first material with fiber properties, with the second material with metallic character as surface layer, more surface treatment mode can be used in its surface, can access more abundant surface effect, make product have higher sense of touch and product texture, more attract client.
The present invention also provides a kind of composite manufacture method, comprising: a) just the first material soaks in resin combination, obtains prepreg members; B) will be at least the prefabricated component of a slice prepreg members and at least a slice the second material formation place that to have a mould hot-forming, obtain described composite; The thermal linear expansion coefficient of described prepreg members and the thermal linear expansion coefficient of described prefabricated component are complementary; Wherein said prepreg members forms supporting layer; Described prefabricated component forms described surface layer.Described the first material is the material with fiber properties.Preparation method provided by the invention, simple to operate, the first material and the second Material cladding are prepared the surface can carry out multiple processing, obtain the composite of multiple patterns and color.Technique is simple, be fit to large-scale industrial production, because the thermal linear expansion coefficient of described prepreg members and the thermal linear expansion coefficient of described prefabricated component are complementary, so the rigidity value of the described supporting layer of composite of preparation greater than the rigidity value of described surface layer, can avoid owing to the expansion of the second material and the excessive surface layer that produces of the first material thermal expansion coefficient difference is curling, fracture, flange.
Description of drawings
The composite structure schematic diagram that Fig. 1 embodiment of the invention 1 provides;
The composite structure schematic diagram that Fig. 2 embodiment of the invention 2 provides;
Detail characteristic schematic diagram between Fig. 3 composite supporting layer provided by the invention and surface layer interface.
The specific embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiments of the invention are described, but should be appreciated that the just restriction for further specifying the features and advantages of the present invention rather than patent of the present invention being required of these descriptions.
The invention provides a kind of composite, comprising: supporting layer
Surface layer, described surface layer are arranged on the described supporting layer;
Wherein, described supporting layer solidify to form after soaking resin combination by the first material, and described surface layer is comprised of the second material, and described the second material has metallic character; Described the first material has fiber properties; The rigidity value of described supporting layer is greater than the rigidity value of described surface layer.
The prior art of comparing, composite provided by the invention comprises supporting layer and surface layer, described supporting layer is formed by the first material after soaking in resin combination, described the first material is preferably carbon fiber, according to the present invention, described carbon fiber flattens the preimpregnation sheet material that obtains after preferably being soaked in epoxy resin by the continuous carbon fibre precursor, described continuous carbon fibre precursor can be unidirectional array, also can arranged in a crossed mannerly reticulate structure.Described supporting layer preferably includes 1～10 layer of described preimpregnation sheet material, and more preferably 4～8 layers, every layer thickness is preferably 0.05～1mm, more preferably 0.1～0.2mm.
Described surface layer preferably uses the second material with metallic character, according to the present invention, metal or alloy or metallic fiber that the preferred atom mass rate iron of described the second material is light, more preferably be preferably the alloy of aluminium, stainless steel, titanium, chromium, magnesium or above 4 kinds of metals, other components in the alloy are not limit metal in above 4.More preferably aluminium alloy or aluminum alloy fiber, aluminium alloy ductility is good, easily processing, easily process on the surface, can form multiple figure and color on its surface.The aluminium alloy number of plies that the present invention uses is preferably 1～10 layer, more preferably 1～4 layer.It is rolled into metal forming or sheeting; Gross thickness is preferably 0.01～0.3mm, more preferably 0.05～0.2mm.Alloy foil or thin slice are by calendering, and etched pattern and texture on roller obtain corresponding pattern and texture after rolling.Or polish at alloy foil or sheet surface, the operation such as sandblast, dyeing or anodic oxidation, to make in advance alloy foil or the thin slice with pattern or color.Since at pattern or the texture that alloy foil or thin slice form, can be by machining, and the pattern that obtains forming on a plurality of alloy foils or the thin slice is uniformity.
Certainly, the second material of this metallic character itself just can serve as appearance surfaces after forming surface layer.
Owing to the present invention is to provide composite, the material of each layer use is all not identical, and when the processing thermoforming, different materials has different thermal linear expansion coefficients, and thermal coefficient of expansion is larger, and its deformation at high temperature is just faster.Used the second material with metallic character owing to surface layer among the present invention, so the thermal linear expansion coefficient of described surface layer is more much bigger than the first material and resin combination in the supporting layer, in order to make composite in process, the surface layer thermal expansion is too fast and curling, fracture, flange occur, and must use the resin combination that is complementary with its thermal linear expansion coefficient.According to the present invention, described resin combination is preferably epoxy resin, more preferably bisphenol A type epoxy resin.
According to the present invention, the thermal linear expansion coefficient of described surface layer is generally 23 * 10 such as aluminium alloy
-6/ K, the thermal linear expansion coefficient of supporting layer such as carbon fiber are 0 * 10 under 200 ℃ of temperature
-6/ K is negative (0.5～-1.6) * 10 during room temperature
-6/ K.Be used for the resin combination of preimpregnation carbon fiber, very large according to the different othernesses of component such as the thermal linear expansion coefficient of epoxy resin, need to be complementary by the thermal linear expansion coefficient of adjusting resin composition formula and component and surface layer.According to the present invention, the thermal linear expansion coefficient of described resin combination is preferably 20～50 * 10
-6/ K, use has the resinous polymer of this thermal linear expansion coefficient, can guarantee to have the excessive of thermal linear expansion coefficient between the surface layer that the first material behind the described resinous polymer of the preimpregnation supporting layer that forms and the second material with metallic character form, so that add man-hour in thermoforming, resin combination can be regulated the expansion rate of surface layer and supporting layer, and the surface layer speed of expansion is slowed down.If when in the mould chamfering being arranged, supporting layer described in the forming process and described surface layer are according to position and the angle forming of the chamfering in the mould, be that described supporting layer is consistent according to the second shape of shape moulding in the mould with described surface layer according to the first shape of shape moulding in the mould, obtain having the composite of definite shape, and the problems such as curling, flange or fracture do not occur in described composite at the chamfering place.In addition, the rigidity of described supporting layer makes described supporting layer can better play the effect of supporting and protecting greater than the rigidity of described surface layer after moulding.
The prior art of comparing, the present invention has also comprised articulamentum, and supporting layer and surface layer are connected firmly.According to the present invention, described articulamentum is preferably by forming after the adhesive cures.Identical with the selection principle of resin combination, the thermal linear expansion coefficient that described binding agent also must satisfy with surface layer and supporting layer is complementary, and select that high viscosity, environment adaptability are good, resistance to chemical attack, contraction is little, creep properties is good material.Simultaneously, described binding agent also must be complementary with described resin combination, otherwise described surface layer and described supporting layer firmly can not be bonded together, and guarantee reliability and the integrality of whole laminated construction in reaction solidification process and mould heat pressure deformation process.According to the present invention, described binding agent can be filled the irregular gap between supporting layer and the surface layer, guarantees that the irregular zone of carbon fiber surface can be filled and led up.According to the present invention, described binding agent preferred viscosities is 500,000cP, can resist diluted acid, alkali, solvent, grease, moisture, the effect of daylight and weathering, its high temperature resistant cycle performance of general usefulness is weighed, such as 400F (204C), carry out the shearing strength test by ASTM D1002, the intensity of general structure glue is greater than 7MPA.Acrylic compounds more preferably, epoxies and polyurethanes most preferably are preferred bi-component epoxy resinoid.Resin in two component epoxy resinoid and the described supporting layer has good compatibility, can firmly bond described surface layer and supporting layer, and in addition, the resinoid thermal coefficient of expansion of two component epoxy is 20～50 * 10
-6/ K further makes the expansion rate of surface layer descend in process, guarantee composite can flange, curling, fracture.
The present invention can come with different curing agent the solidification temperature of adjustable ring epoxy resins.The cold curing agent is preferably aliphatic polyamine, alicyclic polyamine; Versamid and aromatic amine etc.The preferred a part of alicyclic polyamine of intermediate temperature setting agent, tertiary amine, narrow azole and boron trifluoride complex etc.High-temperature curing agent is preferably aromatic polyamine, acid anhydrides, resol, amino resins, dicyandiamide and hydrazides etc.Wherein cold curing agent solidification temperature is room temperature～50 ℃; The intermediate temperature setting agent is 50～100 ℃; The high-temperature curing agent solidification temperature is more than 100 ℃.
According to the present invention, described supporting layer and/or surface layer also comprise foamed material layer.Described foamed material layer is as filling or being compounded in supporting layer and/or the surface layer.Because described expanded material contains concrete dynamic modulus, be added in the composite, can reduce the weight of described composite, increase composite anti-ly fall, anti-pressure ability.According to the present invention, described expanded material preferably uses for example polyethylene foamed, foaming ethylene-vinyl acetate copolymer or build expanded material Polymethacrylimide (PMI) for example of linear polymer expanded material.Described foamed material layer can also can be in surface layer in supporting layer.The present invention preferably arranges described foamed material layer in supporting layer.
As shown in Figure 1, the composite for the embodiment of the invention 1 provides comprises: the carbon fiber layer 2 of aluminium alloy layer 1 and pre-soaked resin composition.One deck aluminium alloy layer forms surface layer; The carbon fiber layer of six layers of pre-soaked resin composition forms supporting layer, and as shown in Figure 3, articulamentum b connects described surface layer and described supporting layer.
As shown in Figure 2, the composite for the embodiment of the invention 2 provides comprises: the carbon fiber layer 2 of aluminium alloy layer 1, pre-soaked resin composition, polyethylene foamed layer 3.One deck aluminium alloy layer forms surface layer, and the carbon fiber layer of four layers of pre-soaked resin composition and one deck polyethylene foamed layer form supporting layer; As shown in Figure 3, articulamentum b connects described surface layer and described supporting layer.
Composite faces, supporting layer interface detail characteristic that Fig. 3 provides for the embodiment of the invention 1 and embodiment 2, comprise: carbon fiber layer c, the d of aluminium alloy layer a, adhesive layer b, pre-soaked resin composition, described c is the carbon fiber layer of the different pre-soaked resin composition of carbon fibre precursor orientation with d.
The present invention also provides a kind of composite manufacture method, comprising: first material that a) will have fiber properties soaks in resin combination, obtains prepreg members;
B) will be at least a slice prepreg members and at least the prefabricated component of a slice with the second material formation of metallic character place that to have a mould hot-forming, obtain described composite; The thermal linear expansion coefficient of described prepreg members and the thermal linear expansion coefficient of described prefabricated component are complementary; Wherein said prepreg members forms supporting layer; Described prefabricated component forms described surface layer.
The prior art of comparing, composite provided by the invention comprises supporting layer and surface layer, described supporting layer is formed by the first material after soaking in resin combination, described the first material is preferably carbon fiber, according to the present invention, described carbon fiber flattens the preimpregnation sheet material that obtains after preferably being soaked in epoxy resin by the continuous carbon fibre precursor, described continuous carbon fibre precursor can be unidirectional array, also can arranged in a crossed mannerly reticulate structure.Described supporting layer preferably includes 1～10 layer of described preimpregnation sheet material, and more preferably 4～8 layers, every layer thickness is preferably 0.05～1mm, more preferably 0.1～0.2mm.
Described surface layer preferably uses the second material with metallic character, according to the present invention, metal or alloy or metallic fiber that the preferred atom mass rate iron of described the second material is light, more preferably be preferably the alloy of aluminium, titanium, chromium, magnesium or above 4 kinds of metals, other components in the alloy are not limit metal in above 4.More preferably aluminium alloy or aluminum alloy fiber, aluminium alloy ductility is good, easily processing, easily process on the surface, can form multiple figure and color on its surface.The aluminium alloy number of plies that the present invention uses is preferably 1～10 layer, more preferably 1～4 layer.It is rolled into metal forming or sheeting; Gross thickness is preferably 0.01～0.3mm, more preferably 0.05～0.2mm.Alloy foil or thin slice are by calendering, and etched pattern and texture on roller obtain corresponding pattern and texture after rolling.Or polish at alloy foil or sheet surface, the operation such as sandblast, dyeing or anodic oxidation, to make in advance alloy foil or the thin slice with pattern or color.
One or more layers lamination of described carbon fiber plate is placed, then at the top layer of surface coating hot-melt adhesive, make PUR form thin film or formation coating, then metal sheet is placed on hot-melt adhesive membrane or the PUR coating, and be positioned in the hot-press equipment, carry out hot-forming.Through under the effect of high temperature and high pressure, the 3rd interface that PUR solidify to form is bonded together carbon fiber and metal, and described carbon fiber plate forms supporting layer, described metal sheet forms surface layer, and described binding agent forms adhesive layer.According to the present invention, described hot-formingly preferably under vacuum condition, operate, in hot-forming, air between layers can be emptying like this, makes between layers in conjunction with tightr.According to the present invention, described hot-press equipment preferably uses vacuum hotpressing machine.The difference that temperature is used owing to curing agent in the epoxide-resin glue during hot pressing, its solidification temperature are also different.Temperature during hot pressing of the present invention is preferably 20～150 ℃, and more preferably 80～150 ℃, vacuum is preferably 1～10KPa, more preferably 3～5KPa.According to the present invention, carry out hot-forming before, can also be with described pre-press as for carrying out warm-up operation on the lower pressed film of described vacuum hotpressing machine.
According to the present invention, prepreg members and prefabricated component can also be positioned in the mould that possesses definite shape and size according to certain laying angle, behind the matched moulds, 130～150 ℃ of hot pressing and be incubated 5～30min. under this temperature, the binding agent that the resinous polymer of described preimpregnation the first material and articulamentum use has optimum curing rate, in described resinous polymer and adhesive cures process, described prepreg members and prefabricated component can be according to size and the laying angle formings of mould, because the resin combination and/or the binding agent that use have the thermal linear expansion coefficient that is complementary with described surface layer, namely 20～50 * 10
-6/ K, so when thermoforming, make the thermal expansion rates of described prepreg members, prefabricated component and/or binding agent identical, in forming process, prefabricated component can expand along with the expansion rate of prepreg members, resin combination and/or binding agent, well covers on the described supporting layer, can flange, curling or fracture.Composite after the moulding has size and the angle of mould, and for example the edge turns down or have the shell of certain excessive circular arc.
According to the present invention, described supporting layer and/or surface layer also comprise foamed material layer.Described foamed material layer is as filling or being compounded in supporting layer and/or the surface layer.Because described expanded material contains concrete dynamic modulus, be added in the composite, can reduce the weight of described composite, increase composite anti-ly fall, anti-pressure ability.According to the present invention, described expanded material preferably uses for example polyethylene foamed, foaming ethylene-vinyl acetate copolymer or build expanded material Polymethacrylimide (PMI) for example of linear polymer expanded material.Described foamed material layer can also can be in surface layer in supporting layer.The present invention preferably arranges described foamed material layer in supporting layer.
The present invention also provides a kind of electronic equipment, comprising: electronic devices and components;
Housing, described electronic devices and components are fixedly installed in the described housing, and wherein, at least a portion of described housing is made by composite; Described composite comprises: soaked the supporting layer that solidify to form behind the resin combination and had the surface layer that the second material of metallic character consists of by the first material, described surface layer is arranged on the outer surface of described supporting layer and covers described supporting layer; Wherein, described supporting layer is used for supporting and protecting described electronic devices and components.Described electronic equipment is preferably notebook computer, desktop computer, panel computer or mobile phone.In described electronic equipment, the composite that uses all has certain shape, such as shell on the back or the drain pan of notebook computer, there are excessive circular arc or turnover in the edge, so surface material, support layer material and/or the articulamentum material that must select thermal coefficient of expansion to be complementary in moulding.
In order further to understand the present invention, be described the invention provides the composite manufacture method below in conjunction with embodiment.
The carbon fiber plate of the epoxy resin preimpregnation that to get 8 thickness be 0.1mm, specification is 1m * 1m.Described preimpregnation carbon fiber plate lamination is placed justified margin.Apply thermosetting epoxy resin glue on the carbon fiber plate of the superiors surface, its formation is filmed, the thickness of then getting same size is that the alloy foil of 0.1mm is placed on described thermosetting epoxy resin glue films, and the edge obtains pre-press to it.Described alloy foil surface etching has the lenovo printed words.
Described pre-press is placed on the lower pressed film of vacuum hotpressing machine, then matched moulds but do not exert pressure vacuumizes, and makes vacuum reach 1kPa, and temperature rises to 130 ℃, and hot pressing 15 minutes, pressurize are taken out after 5 minutes and obtained composite.
Embodiment 4
The carbon fiber plate of the epoxy resin preimpregnation that to get 4 thickness be 0.1mm, specification is 1m * 1m.A slice thickness is the polyethylene foamed sheet material of 0.5mm, and specification is 1m * 1m.Described preimpregnation carbon fiber plate and polyethylene foamed sheet material order lamination are as shown in Figure 2 placed, and the edge is to it.Apply thermosetting epoxy resin glue on the carbon fiber plate of the superiors surface, its formation is filmed, the thickness of then getting same size is that the alloy foil of 0.1mm is placed on described thermosetting epoxy resin glue films, and the edge obtains pre-press to it.Described alloy foil surface etching has the lenovo printed words.
Described pre-press is placed on the lower pressed film of vacuum hotpressing machine, vacuumize, make vacuum reach 5kPa, temperature rises to 130 ℃, and hot pressing 15 minutes, pressurize are taken out after 5 minutes and obtained composite.
Embodiment 5
The carbon fiber plate of the epoxy resin preimpregnation that to get 4 thickness be 0.1mm, specification is 40cm * 40cm.A slice thickness is the polyethylene foamed sheet material of 0.5mm, and specification is 40cm * 40cm.Described preimpregnation carbon fiber plate and polyethylene foamed sheet material order lamination are as shown in Figure 2 placed, and the edge is to it.Apply thermosetting epoxy resin glue on the carbon fiber plate of the superiors surface, its formation is filmed, the thickness of then getting same size is that the alloy foil of 0.1mm is placed on described thermosetting epoxy resin glue films, and the edge obtains pre-press to it.Described alloy foil surface etching has the lenovo printed words.
Described pre-press is placed in the notebook shell on the back mould of 100 ℃ of lower preheatings, described alloy foil places die one side, behind the matched moulds described mould is placed on the lower pressed film of vacuum hotpressing machine, vacuumize, make vacuum reach 5kPa, temperature rises to 130 ℃, and hot pressing 15 minutes, pressurize are taken out to such an extent that have a notebook shell on the back at the excessive angle of circular arc to the edge after 5 minutes.
After the assembling of the electronic devices and components such as described notebook computer shell on the back and screen, obtain notebook computer.
Embodiment 6
The carbon fiber plate of the epoxy resin preimpregnation that to get 4 thickness be 0.1mm, specification is 40cm * 20cm.A slice thickness is the polyethylene foamed sheet material of 0.5mm, and specification is 40cm * 20cm.Described preimpregnation carbon fiber plate and polyethylene foamed sheet material order lamination are as shown in Figure 2 placed justified margin.Apply thermosetting epoxy resin glue on the carbon fiber plate of the superiors surface, its formation is filmed, the thickness of then getting same size is that the alloy foil of 0.1mm is placed on described thermosetting epoxy resin glue films, and the edge obtains pre-press to it.Described alloy foil surface anodic oxidation has the lenovo printed words.
Described pre-press is placed in the panel computer shell on the back mould of 100 ℃ of lower preheatings, described alloy foil places die one side, behind the matched moulds described mould is placed on the lower pressed film of vacuum hotpressing machine, vacuumize, make vacuum reach 5kPa, temperature rises to 130 ℃, and hot pressing 15 minutes, pressurize are taken out to such an extent that have a notebook shell on the back at the excessive angle of circular arc to the edge after 5 minutes.
After the assembling of the electronic devices and components such as institute's panel computer shell on the back and screen, obtain notebook computer.
Above a kind of composite provided by the invention and preparation method thereof is described in detail; having used specific case herein sets forth principle of the present invention and embodiment; the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a composite is characterized in that, comprising:
Supporting layer
Surface layer, described surface layer are arranged on the described supporting layer;
Wherein, described supporting layer solidify to form after soaking resin combination by the first material, and described surface layer is comprised of the second material, and described the second material has metallic character; Described the first material has fiber properties; The rigidity value of described supporting layer is greater than the rigidity value of described surface layer.
2. composite according to claim 1 is characterized in that, comprises foamed material layer in described supporting layer and/or the surface layer.
3. composite according to claim 1 is characterized in that, forms figure by polishing, etching, sandblast, dyeing or anodic oxidation at described surface layer.
4. composite according to claim 1 is characterized in that, the thermal linear expansion coefficient of described supporting layer and the thermal linear expansion coefficient of described surface layer are complementary.
5. composite according to claim 4 is characterized in that, also comprises articulamentum; Described surface layer is attached on the described supporting layer by articulamentum;
Described articulamentum is formed by adhesive cures, and the thermal linear expansion coefficient of described binding agent is less than the thermal linear expansion coefficient of described the second material.
6. composite according to claim 1 is characterized in that, described surface thickness is 0.005～0.30mm.
7. a composite manufacture method is characterized in that, comprising:
First material that a) will have fiber properties soaks in resin combination, obtains prepreg members;
B) will be at least a slice prepreg members and at least the prefabricated component of a slice with the second material formation of metallic character place that to have a mould hot-forming, obtain described composite; The thermal linear expansion coefficient of described prepreg members and the thermal linear expansion coefficient of described prefabricated component are complementary; Wherein said prepreg members forms supporting layer; Described prefabricated component forms described surface layer.
8. preparation method according to claim 7 is characterized in that, also comprises in advance by polishing, etching, sandblast, dyeing or anodic oxidation figure being set in described preform surfaces.
9. an electronic equipment is characterized in that, comprising:
Electronic devices and components;
Housing, described electronic devices and components are fixedly installed in the described housing, and wherein, at least a portion of described housing is made by composite; Described composite comprises: soaked the supporting layer that solidify to form behind the resin combination and had the surface layer that the second material of metallic character consists of by the first material with fiber properties, described surface layer is arranged on the outer surface of described supporting layer and covers described supporting layer; Wherein, the rigidity value of described supporting layer is greater than the rigidity value of described surface layer, and described supporting layer is used for supporting and protecting described electronic devices and components.
10. electronic equipment according to claim 9 is characterized in that, the thermal linear expansion coefficient of described supporting layer and the thermal linear expansion coefficient of described surface layer are complementary.
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| CN106329098A (en) * | 2015-07-10 | 2017-01-11 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN106329097A (en) * | 2015-07-10 | 2017-01-11 | 深圳光启尖端技术有限责任公司 | Antenna device and method for manufacturing same |
| CN106340715A (en) * | 2015-07-10 | 2017-01-18 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN112684850A (en) * | 2020-12-16 | 2021-04-20 | 太仓鸿恩电子科技有限公司 | Forming process of ultra-light notebook carbon fiber plate shell capable of quickly dissipating heat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106329098A (en) * | 2015-07-10 | 2017-01-11 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN106329097A (en) * | 2015-07-10 | 2017-01-11 | 深圳光启尖端技术有限责任公司 | Antenna device and method for manufacturing same |
| CN106340715A (en) * | 2015-07-10 | 2017-01-18 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN106340715B (en) * | 2015-07-10 | 2020-03-10 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN106329097B (en) * | 2015-07-10 | 2020-03-10 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN106329098B (en) * | 2015-07-10 | 2020-03-10 | 深圳光启尖端技术有限责任公司 | Antenna device and manufacturing method thereof |
| CN112684850A (en) * | 2020-12-16 | 2021-04-20 | 太仓鸿恩电子科技有限公司 | Forming process of ultra-light notebook carbon fiber plate shell capable of quickly dissipating heat |
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