CN105563963A - Composite material skin and preparation method thereof - Google Patents
Composite material skin and preparation method thereof Download PDFInfo
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- CN105563963A CN105563963A CN201510998628.XA CN201510998628A CN105563963A CN 105563963 A CN105563963 A CN 105563963A CN 201510998628 A CN201510998628 A CN 201510998628A CN 105563963 A CN105563963 A CN 105563963A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a composite material skin and a preparation method thereof; the composite material skin includes an upper fiber reinforced layer, a heatable polyimide thin film and a lower fiber reinforced layer; the upper fiber reinforced layer and the lower fiber reinforced layer are adhered to the upper surface and the lower surface of the heatable polyimide thin film respectively. The composite material skin provided by the invention has the advantages of light weight, uniform heat generation, high heat generation efficiency, adoption of human safe voltage for heating, safety, reliability and the like; at the same time, the composite material skin can be conveniently laid on conventional interior trim parts, and meets the heating function of the interior trim parts without affecting a conventional spatial layout. A solution can be provided for lightweighting of advanced passenger cars, saloon cars, high-speed railways and various rail transit vehicles, and at the same time, the space of an air conditioner hot air system is saved.
Description
Technical field
The present invention relates to field of track traffic technical field of composite materials, be specifically related to a kind of heatable polyimides-fibre reinforced composites covering and preparation method thereof.
Background technology
In recent years, along with rapid development of economy, the problem of energy scarcity is more and more outstanding, new forms of energy, low-carbon (LC), pollution-free, the energy-saving and cost-reducing direction having become current national and urgently developed.At present, flourish along with China's track traffic cause, the requirement of passenger to vehicles comfortableness, security, energy saving is also more and more higher.Current vehicle heating system existence can cause air pollution, environmental noise large and the problem such as power consumption is higher.
Summary of the invention
In view of this, the object of the invention is to propose a kind of composite material skin and preparation method thereof, to save air-conditioning installing space, and reduce the energy consumption of vehicle heating system.
Based on above-mentioned purpose, composite material skin provided by the invention comprises fiber-reinforced layer, can heat Kapton and lower fiber-reinforced layer, and described upper fiber-reinforced layer and lower fiber-reinforced layer are bonded in described upper surface and the lower surface that can heat Kapton respectively.
In some embodiments of the invention, the described Kapton that heats is selected from least one in conductive black-Kapton, conductive graphene-Kapton and conductive carbon nanotube-Kapton.
In some embodiments of the invention, described upper fiber-reinforced layer comprises matrix material and the fibre reinforced materials in described matrix material, described matrix material is selected from least one in phenolic resins, polyimides, epoxy resin AG-80 and unsaturated polyester resin, and described fibre reinforced materials is selected from least one in carbon fiber, glass fibre; And/or
Described lower fiber-reinforced layer comprises matrix material and the fibre reinforced materials in described matrix material, described matrix material is selected from least one in phenolic resins, polyimides, epoxy resin AG-80 and unsaturated polyester resin, and described fibre reinforced materials is selected from least one in carbon fiber, glass fibre.
In some embodiments of the invention, described two ends of heating Kapton are respectively arranged with electrode, and described electrode can heat between Kapton and upper fiber-reinforced layer or lower fiber-reinforced layer; One termination electrode is connected with positive wire, and other end electrode is connected with cathode conductor.
In some embodiments of the invention, the thickness of described upper fiber-reinforced layer is 1.0 ~ 3.0mm, and the described thickness heating Kapton is 15 ~ 50 μm.
In some embodiments of the invention, the thickness of described lower fiber-reinforced layer is 1.0 ~ 5.0mm.
The present invention also provides a kind of method preparing above-mentioned composite material skin, comprises the following steps:
1) arrange electrode respectively at the two ends can heating Kapton, a termination electrode is connected with positive wire, and other end electrode is connected with cathode conductor;
2) by lower fiber-reinforced layer, describedly heat Kapton and upper fiber-reinforced layer stacks gradually from the bottom to top, obtain stacked sandwich structure, described lower fiber-reinforced layer and/or upper fiber-reinforced layer comprise matrix material and the fibre reinforced materials in described matrix material;
3) by shaping for described stacked sandwich structure hot-press solidifying, obtained described composite material skin.
In some embodiments of the invention, described electrode adopts screen printing technique to be printed by conductive silver paste and forms, and described conductive silver paste is connected by welding manner with positive wire, cathode conductor.
The present invention also provides a kind of method preparing above-mentioned composite material skin, comprises the following steps:
1) arrange electrode respectively at the two ends can heating Kapton, a termination electrode is connected with positive wire, and other end electrode is connected with cathode conductor;
2) by lower fibre reinforced materials, describedly heat Kapton and upper fibre reinforced materials stacks gradually from the bottom to top, obtain ply angles;
3) by described ply angles vacuum infusion molding, obtained described composite material skin.
In some embodiments of the invention, described electrode adopts screen printing technique to be printed by conductive silver paste and forms, and described conductive silver paste is connected by welding manner with positive wire, cathode conductor.
As can be seen from above, composite material skin main feature provided by the invention is: heating principle is dispersed conductive particle daughter heating power, whole consistent heat generation during composite material skin work, and homogeneous temperature, control are conveniently; And lighter in weight; Without the need to design specialized installing space; Easy construction, overcomes the some shortcomings of traditional resistor silk heating.Therefore, this can heat composite material skin have safety, heating property excellent, (local install location do not affect can heating function) be easily installed, using of interior trim field can be heated in track traffic and develop the potentiality having and cannot estimate.The features such as visible, composite material skin provided by the invention has lightweight, and heating is even, and heating efficiency is high and adopt human safety voltage's heating, safe and reliable; Simultaneously this composite material skin can convenient-laying on existing inside gadget, while not affecting existing space layout, meet inside gadget heating function.The present invention can be coach luxury coach, car, high ferro, various rail traffic vehicles lightweight solution is provided, save the space of air conditioner heat wind system simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention composite material skin;
Fig. 2 is the structural representation that the embodiment of the present invention can heat Kapton silk-screened conductive silver slurry;
Fig. 3 is the structural representation that the embodiment of the present invention can heat Kapton silk-screened conductive silver slurry;
Fig. 4 is the thermal infrared imaging figure of embodiment of the present invention composite material skin.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Composite material skin provided by the invention comprises fiber-reinforced layer, can heat Kapton and lower fiber-reinforced layer, and described upper fiber-reinforced layer and lower fiber-reinforced layer are bonded in described upper surface and the lower surface that can heat Kapton respectively.
As shown in Figure 1, it is the structural representation of embodiment of the present invention composite material skin.As one embodiment of the present of invention, described composite material skin comprises fiber-reinforced layer 1, can heat Kapton 2 and lower fiber-reinforced layer 3, and described upper fiber-reinforced layer 1 and lower fiber-reinforced layer 3 are bonded in described upper surface and the lower surface that can heat Kapton 2 respectively.Preferably, the described Kapton 2 of heating for continuous print, to improve the heating effect on whole.
In yet another embodiment of the present invention, describedly heat the compound that Kapton 2 is selected from least one in conductive black-Kapton, conductive graphene-Kapton and conductive carbon nanotube-Kapton or above-mentioned conductive material, can heat equably on whole to make heating Kapton 2, thus make the homogeneous temperature on composite material skin surface.
As shown in Figures 2 and 3, in yet another embodiment of the present invention, described two ends of heating Kapton 2 are respectively arranged with electrode 4,5, and described electrode 4,5 can heat between Kapton 2 and upper fiber-reinforced layer 1 or lower fiber-reinforced layer 3; One termination electrode 4 is connected with positive wire 7, and other end electrode 5 is connected with cathode conductor 6, for heating heating Kapton 2.Preferably, described electrode 4,5 can adopt screen printing technique to be printed by conductive silver paste and form, and described conductive silver paste 4,5 is connected by welding manner with positive wire 7, cathode conductor 6.
In yet another embodiment of the present invention, described upper fiber-reinforced layer 1 comprises matrix material and the fibre reinforced materials in described matrix material, described matrix material can be thermosetting resin, and described composite material skin shaping or vacuum infusion molding can obtain through hot-press solidifying.Preferably, described matrix material is selected from least one in phenolic resins, polyimides, epoxy resin AG-80 and unsaturated polyester resin, and described fibre reinforced materials is selected from least one in carbon fiber, glass fibre.Alternatively, described fibre reinforced materials comprises carbon cloth and glass fabric, to strengthen intensity and the controllability of this composite material skin.
In yet another embodiment of the present invention, described lower fiber-reinforced layer 3 comprises matrix material and the fibre reinforced materials in described matrix material, and described matrix material can be thermosetting resin.Further, described matrix material is selected from least one in phenolic resins, polyimides, epoxy resin AG-80 and unsaturated polyester resin, and described fibre reinforced materials is selected from least one in carbon fiber, glass fibre.Alternatively, described fibre reinforced materials comprises carbon cloth and glass fabric, to strengthen intensity and the controllability of this composite material skin.
Preferably, the thickness of described upper fiber-reinforced layer is 1.0 ~ 3.0mm, and the described thickness heating Kapton is 15 ~ 50 μm.Make described composite material skin have excellent heating efficiency, be applicable to the heated covering of all kinds of track traffic inside gadget.Described composite material skin and inside gadget connect by the mode such as being mechanically connected, bonding, also can to carry out Integral mold molded with inside gadget.More preferably, the thickness of described lower fiber-reinforced layer is 1.0 ~ 5.0mm.
Embodiment 1
As one embodiment of the present of invention, the preparation method of described composite material skin comprises the following steps:
1) screen printing technique is adopted respectively at the two ends of conductive black-Kapton, conductive silver paste is printed to electrode, and as shown in Figure 2, a termination electrode is connected by welding manner with positive wire, other end electrode is connected by welding manner with cathode conductor, as shown in Figure 3.
2) the upper fiber-reinforced layer brushing the lower fiber-reinforced layer of adhesive, described conductive black-Kapton and brush adhesive is fitly overlayed on the steel plate of press from the bottom to top successively according to designing requirement, obtain stacked sandwich structure.
Described lower fiber-reinforced layer is glass fabric prepreg, and upper fiber-reinforced layer is glass fabric prepreg, and the resin matrix of described prepreg is selected from epoxy resin.Releasing agent can be made with Kapton between described glass fabric prepreg and press steel plate.
3) closed up by lower steel plate on press, setting press pressure is 12MPa, starts to heat up, from room temperature to 120 DEG C about 30min, then at 120 DEG C of insulation 2h; Then 160 DEG C of about 30min are warming up to from 120 DEG C, then at 160 DEG C of insulation 2h; Finally, after pressure is increased to 15MPa, temperature is warming up to 200 DEG C of about 30min from 160 DEG C, at 200 DEG C of insulation 6h, thus makes described stacked sandwich structure hot-press solidifying shaping, the composite material skin of obtained heatproof 200 DEG C of grades.
Embodiment 2
As one embodiment of the present of invention, the preparation method of described composite material skin comprises the following steps:
1) screen printing technique is adopted respectively at the two ends of conductive graphene-Kapton, conductive silver paste is printed to electrode, and as shown in Figure 2, a termination electrode is connected by welding manner with positive wire, other end electrode is connected by welding manner with cathode conductor, as shown in Figure 3.
2) the upper fiber-reinforced layer brushing the lower fiber-reinforced layer of adhesive, described conductive graphene-Kapton and brush adhesive is fitly overlayed on the steel plate of press from the bottom to top successively according to designing requirement, obtain stacked sandwich structure.
Described lower fiber-reinforced layer is carbon cloth prepreg, and upper fiber-reinforced layer is carbon cloth prepreg, and the resin matrix of described prepreg is selected from polyimides.Releasing agent can be made with Kapton between described carbon cloth prepreg and press steel plate.
3) closed up by lower steel plate on press, setting press pressure is 12MPa, starts to heat up, from room temperature to 120 DEG C about 30min, then at 120 DEG C of insulation 1h; Then 160 DEG C of about 30min are warming up to from 120 DEG C, then at 160 DEG C of insulation 1h; After pressure is increased to 15MPa, temperature is warming up to 250 DEG C of about 30min from 160 DEG C, at 250 DEG C of insulation 1h; Then be warming up to 380 DEG C of about 1h from 250 DEG C, then at 380 DEG C of insulation 2h, thus make described stacked sandwich structure hot-press solidifying shaping, the composite material skin of obtained heatproof 400 DEG C of grades.
Embodiment 3
As one embodiment of the present of invention, the preparation method of described composite material skin comprises the following steps:
1) screen printing technique is adopted respectively at the two ends of conductive carbon nanotube-Kapton, conductive silver paste is printed to electrode, and as shown in Figure 2, a termination electrode is connected by welding manner with positive wire, other end electrode is connected by welding manner with cathode conductor, as shown in Figure 3.
2) the upper fiber-reinforced layer brushing the lower fiber-reinforced layer of adhesive, described conductive carbon nanotube-Kapton and brush adhesive is fitly overlayed on the steel plate of press from the bottom to top successively according to designing requirement, obtain stacked sandwich structure.
Described lower fiber-reinforced layer is glass fabric prepreg, and upper fiber-reinforced layer is glass fabric prepreg, and the resin matrix of described prepreg is selected from phenolic resins.Releasing agent can be made with Kapton between described glass fabric prepreg and press steel plate.
3) closed up by lower steel plate on press, setting press pressure is 13MPa, starts to heat up, from room temperature to 130 DEG C about 28min, then at 130 DEG C of insulation 3h; Then 150 DEG C of about 40min are warming up to from 120 DEG C, then at 150 DEG C of insulation 2h; Finally, after pressure is increased to 16MPa, temperature is warming up to 220 DEG C of about 40min from 170 DEG C, at 220 DEG C of insulation 5h, thus makes described stacked sandwich structure hot-press solidifying shaping, the composite material skin of obtained heatproof 200 DEG C of grades.
Embodiment 4
As one embodiment of the present of invention, the preparation method of described composite material skin comprises the following steps:
1) screen printing technique is adopted respectively at the two ends of conductive graphene-Kapton, conductive silver paste is printed to electrode, and as shown in Figure 2, a termination electrode is connected by welding manner with positive wire, other end electrode is connected by welding manner with cathode conductor, as shown in Figure 3.
2) upper carbon cloth, described conductive graphene-Kapton and lower carbon cloth are stacked gradually from the bottom to top, obtain ply angles.
3) after laying terminates, on upper carbon cloth, lower carbon cloth, require according to priming by vacuum the vacuum tube of leading sebific duct, vacuumizing laying flow-guiding screen and priming by vacuum respectively, then continue to lay above Polypropylence Sheet blend compounds and stick agent and seal from each limit; Open vacuum plant to vacuumize system, after the vacuum of system reaches 0.7 ~ below 0.9bar, covering and heat insulating layer on system, constant temperature 1 ~ 2h, guarantees that a bag film surface temperature is 40 ± 2 DEG C; After bag film surface temperature reaches 40 ± 2 DEG C, start mixed glue, deaeration, perfusion, allows adhesive (phenolic resins) infiltrate ply angles uniformly.
After confirming that perfusion completes, start to heat up, be warming up to 50 DEG C of about 15min, then at 50 DEG C of insulation 1h; Then 60 DEG C of about 15min are warming up to from 50 DEG C, then at 60 DEG C of insulation 1h; 70 DEG C of about 30min are warming up to, at 70 DEG C of insulation 1h from 60 DEG C.Thus make described ply angles vacuum infusion molding, obtained composite material skin.
Embodiment 5
As one embodiment of the present of invention, the preparation method of described composite material skin comprises the following steps:
1) screen printing technique is adopted respectively at the two ends of conductive graphene-Kapton, conductive silver paste is printed to electrode, and as shown in Figure 2, a termination electrode is connected by welding manner with positive wire, other end electrode is connected by welding manner with cathode conductor, as shown in Figure 3.
2) upper glass fabric, described conductive graphene-Kapton and lower-glass fiber cloth are stacked gradually from the bottom to top, obtain ply angles.
3) after laying terminates, on upper glass fabric, lower-glass fiber cloth, require according to priming by vacuum the vacuum tube of leading sebific duct, vacuumizing laying flow-guiding screen and priming by vacuum respectively, then continue to lay above Polypropylence Sheet blend compounds and stick agent and seal from each limit; Open vacuum plant to vacuumize system, after the vacuum of system reaches 0.75 ~ below 0.85bar, covering and heat insulating layer on system, constant temperature 1.5 ~ 2h, guarantees that a bag film surface temperature is 42 ± 2 DEG C; After bag film surface temperature reaches 42 ± 2 DEG C, start mixed glue, deaeration, perfusion, allows adhesive (epoxy resin AG-80) infiltrate ply angles uniformly.
After confirming that perfusion completes, start to heat up, from room temperature to 120 DEG C about 30min, then at 120 DEG C of insulation 2h; Then 160 DEG C of about 30min are warming up to from 120 DEG C, then at 160 DEG C of insulation 2h; Finally, temperature is warming up to 200 DEG C of about 30min from 160 DEG C, at 200 DEG C of insulation 2h; This technique is applicable to the epoxy resin composite material covering of temperature resistant grade 200 DEG C.
Embodiment 6
As one embodiment of the present of invention, the preparation method of described composite material skin comprises the following steps:
1) screen printing technique is adopted respectively at the two ends of conductive graphene-Kapton, conductive silver paste is printed to electrode, and as shown in Figure 2, a termination electrode is connected by welding manner with positive wire, other end electrode is connected by welding manner with cathode conductor, as shown in Figure 3.
2) upper carbon cloth, described conductive graphene-Kapton and lower carbon cloth are stacked gradually from the bottom to top, obtain ply angles.
3) after laying terminates, on upper carbon cloth, lower carbon cloth, require according to priming by vacuum the vacuum tube of leading sebific duct, vacuumizing laying flow-guiding screen and priming by vacuum respectively, then continue to lay above Polypropylence Sheet blend compounds and stick agent and seal from each limit; Open vacuum plant to vacuumize system, after the vacuum of system reaches 0.65 ~ below 0.8bar, covering and heat insulating layer on system, constant temperature 2 ~ 2.5h, guarantees that a bag film surface temperature is 37 ± 2 DEG C; After bag film surface temperature reaches 37 ± 2 DEG C, start mixed glue, deaeration, perfusion, allows adhesive (epoxy resin AG-80) infiltrate ply angles uniformly.
After confirming that perfusion completes, start to heat up, from room temperature to 130 DEG C about 25min, then at 130 DEG C of insulation 2h; Then 170 DEG C of about 30min are warming up to from 130 DEG C, then at 170 DEG C of insulation 2h; Finally, temperature is warming up to 200 DEG C of about 25min from 170 DEG C, at 200 DEG C of insulation 2.5h; This technique is applicable to the epoxy resin composite material covering of temperature resistant grade 200 DEG C.
Get 20cm × 10cm, resistance is the heated Kapton of 40 ohm, and logical 36 volt direct currents about a minute, its surface temperature can up to 200 DEG C.The surface power density of Kapton film can be heated from 0.1 ~ 2.0W/cm
2adjustable, high compared with the surface power density of carbon fiber cloth exothermic material 4 ~ 5 times.Adopt carbon fiber cloth heating system, because of carbon fiber cloth meeting accumulation of heat, very large a part of power is used for conducting self-heating accumulation of energy, so its electricity-thermal conversion efficiency is about 40 ~ 50%; And employing can heat polyimide film, because this film is thinner, not accumulation of energy substantially, therefore its efficiency of heating surface can reach 90%.See Fig. 4, it is the infrared thermal imaging figure of embodiment of the present invention composite material skin, thus can find out in figure, and composite material skin provided by the invention can whole consistent heat generation, and homogeneous temperature.
Heated Kapton high-temperature behavior in composite material skin provided by the invention is good, 200 DEG C are reached as high as at the situation underlaying surface temperature without any Surface mulch, after laying fiber-reinforced layer, the heating-up temperature of this composite material skin reaches as high as 100 DEG C.
Composite material skin main feature provided by the invention is: heating principle is dispersed conductive particle daughter heating power, whole consistent heat generation during covering work, and homogeneous temperature, control are conveniently; And lighter in weight; Without the need to design specialized installing space; Easy construction, overcomes the some shortcomings of traditional resistor silk heating.Therefore, this can heat composite material skin have safety, heating property excellent, (local install location do not affect can heating function) be easily installed, using of interior trim field can be heated in track traffic and develop the potentiality having and cannot estimate.
The features such as can be seen here, composite material skin provided by the invention has lightweight, and heating is even, and heating efficiency is high and adopt human safety voltage's heating, safe and reliable; Simultaneously this composite material skin can convenient-laying on existing inside gadget, meet inside gadget heating function when not affecting under existing space layout.The present invention can be coach luxury coach, car, high ferro, various rail traffic vehicles lightweight solution is provided, save the space of air conditioner heat wind system simultaneously.
Those of ordinary skill in the field are to be understood that: the discussion of above any embodiment is only exemplary, and not intended to be implies that the scope of the present disclosure (comprising claim) is limited to these examples; Under thinking of the present invention, can combine between the technical characteristic in above embodiment or different embodiment yet, and there are other changes many of different aspect of the present invention as above, they do not provide in details for the sake of simplicity.Therefore, within the spirit and principles in the present invention all, any omission made, amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a composite material skin, it is characterized in that, comprise fiber-reinforced layer, can heat Kapton and lower fiber-reinforced layer, described upper fiber-reinforced layer and lower fiber-reinforced layer are bonded in described upper surface and the lower surface that can heat Kapton respectively.
2. composite material skin according to claim 1, is characterized in that, the described Kapton that heats is selected from least one in conductive black-Kapton, conductive graphene-Kapton and conductive carbon nanotube-Kapton.
3. composite material skin according to claim 1, it is characterized in that, described upper fiber-reinforced layer comprises matrix material and the fibre reinforced materials in described matrix material, described matrix material is selected from least one in phenolic resins, polyimides, epoxy resin AG-80 and unsaturated polyester resin, and described fibre reinforced materials is selected from least one in carbon fiber, glass fibre; And/or
Described lower fiber-reinforced layer comprises matrix material and the fibre reinforced materials in described matrix material, described matrix material is selected from least one in phenolic resins, polyimides, epoxy resin AG-80 and unsaturated polyester resin, and described fibre reinforced materials is selected from least one in carbon fiber, glass fibre.
4. composite material skin according to claim 1, is characterized in that, described two ends of heating Kapton are respectively arranged with electrode, and described electrode can heat between Kapton and upper fiber-reinforced layer or lower fiber-reinforced layer; One termination electrode is connected with positive wire, and other end electrode is connected with cathode conductor.
5. composite material skin according to claim 1, is characterized in that, the thickness of described upper fiber-reinforced layer is 1.0 ~ 3.0mm, and the described thickness heating Kapton is 15 ~ 50 μm.
6. composite material skin according to claim 5, is characterized in that, the thickness of described lower fiber-reinforced layer is 1.0 ~ 5.0mm.
7. prepare a method for the composite material skin in Claims 1 to 5 described in any one, it is characterized in that, comprise the following steps:
1) arrange electrode respectively at the two ends can heating Kapton, a termination electrode is connected with positive wire, and other end electrode is connected with cathode conductor;
2) by lower fiber-reinforced layer, describedly heat Kapton and upper fiber-reinforced layer stacks gradually from the bottom to top, obtain stacked sandwich structure, described lower fiber-reinforced layer and/or upper fiber-reinforced layer comprise matrix material and the fibre reinforced materials in described matrix material;
3) by shaping for described stacked sandwich structure hot-press solidifying, obtained described composite material skin.
8. the preparation method of composite material skin according to claim 7, is characterized in that, described electrode adopts screen printing technique to be printed by conductive silver paste and forms, and described conductive silver paste is connected by welding manner with positive wire, cathode conductor.
9. prepare a method for the composite material skin in Claims 1 to 5 described in any one, it is characterized in that, comprise the following steps:
1) arrange electrode respectively at the two ends can heating Kapton, a termination electrode is connected with positive wire, and other end electrode is connected with cathode conductor;
2) by lower fibre reinforced materials, describedly heat Kapton and upper fibre reinforced materials stacks gradually from the bottom to top, obtain ply angles;
3) by described ply angles vacuum infusion molding, obtained described composite material skin.
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| CN201510998628.XA CN105563963A (en) | 2015-12-25 | 2015-12-25 | Composite material skin and preparation method thereof |
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| CN201510998628.XA CN105563963A (en) | 2015-12-25 | 2015-12-25 | Composite material skin and preparation method thereof |
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| CN201510998628.XA Pending CN105563963A (en) | 2015-12-25 | 2015-12-25 | Composite material skin and preparation method thereof |
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| CN (1) | CN105563963A (en) |
Cited By (2)
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| CN109760819A (en) * | 2018-12-24 | 2019-05-17 | 中国兵器工业导航与控制技术研究所 | A kind of structure battery component of aircraft and aircraft |
| CN110181917A (en) * | 2019-05-29 | 2019-08-30 | 西南石油大学 | A kind of carbon fibre composite and preparation method thereof that hybrid film is modified |
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| CN109760819A (en) * | 2018-12-24 | 2019-05-17 | 中国兵器工业导航与控制技术研究所 | A kind of structure battery component of aircraft and aircraft |
| CN110181917A (en) * | 2019-05-29 | 2019-08-30 | 西南石油大学 | A kind of carbon fibre composite and preparation method thereof that hybrid film is modified |
| CN110181917B (en) * | 2019-05-29 | 2020-04-24 | 西南石油大学 | Hybrid film modified carbon fiber composite material and preparation method thereof |
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