CN108202513A - A kind of thermoplastic fibre metal laminate and preparation method thereof - Google Patents
A kind of thermoplastic fibre metal laminate and preparation method thereof Download PDFInfo
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- CN108202513A CN108202513A CN201611185987.4A CN201611185987A CN108202513A CN 108202513 A CN108202513 A CN 108202513A CN 201611185987 A CN201611185987 A CN 201611185987A CN 108202513 A CN108202513 A CN 108202513A
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- thermoplastic
- fiber materials
- fibre
- thermoplasticity
- braided fabric
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal 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
- 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
-
- 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
-
- 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
- B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
Abstract
The invention discloses a kind of thermoplastic fibre metal laminates and preparation method thereof.The preparation method of wherein thermoplastic fibre metal laminate includes the following steps：S1, offer thermoplasticity mix fine braided fabric；S2, the plasticity is mixed into fine braided fabric and metal material layer is stacked, forms plywood；S3, the plywood is suppressed under hot pressing condition, then molding obtains the thermoplastic fibre metal laminate in the cooling condition, wherein, the thermoplasticity is mixed fine braided fabric and is formed by bundle weave, and the fibre bundle is simultaneously including thermoplastic fiber materials and reinforcing fiber materials.This method is simple for process, and can improve thermoplastic fibre metal laminate inter-layer bonding force and mechanical property.
Description
Technical field
The present invention relates to the preparation fields of composition metal laminate, and in particular, to a kind of thermoplastic fibre metal laminate
Plate and preparation method thereof.
Background technology
Aluminum alloy materials have compared with low-density and higher intensity and shock resistance, and with good machinability
Cost is also more cheap.Therefore just it is widely used in aerospace field since earlier 1930s.However aluminium closes
The fatigue life and corrosion resistance that golden material has some limitations for example relatively low limit its further application value.And
The glass fibre and carbon fibre composite of four the fifties of twentieth century invention have very high specific strength and specific stiffness, and
With good fatigue properties and corrosion resistance, however outside this laminated composite material face transverse strength and shock resistance compared with
Difference, and Coating combination face is also easy to produce delamination.In order to overcome some existing for aluminum alloy materials and fibrous composite simultaneously
In later 1970s, metal material and fiber composite are had developed by TU Delft Polytechnics for shortcoming
Fibre metal laminate material, i.e. fibre metal laminate.
Existing fibre metal laminate includes two kinds of thermosetting fabric metal laminate and thermoplastics type's fibre metal laminate,
Its common preparation method includes the following steps：1) prepreg for including thermosetting resin or thermoplastic resin is prepared；2) one
Prepreg is impregnated into fibrous braid under constant-pressure, pre-impregnated sheet is obtained after cooling；3) pre-impregnated sheet is compounded in metal material
On layer, cured or pyrocondensation processing obtains required fibre metal laminate.
However, in the preparation process of existing thermoplastics type's fibre metal laminate, need after prepreg is heated with metal
Material layer is compound, and in this course, the thermoplastic resin in prepreg has certain mobility when being melted because heating, and holds very much
It easily causes thermoplastic resin and disperses in fibrous braid uneven, and in the place that resin concentration and/or fiber are concentrated, can produce
Raw residual stress occurs interlaminar separation and destroys, causes the decline of the overall mechanical properties of fibre metal laminate.
Invention content
The object of the present invention is to provide a kind of thermoplastic fibre metal laminate and preparation method thereof, to improve thermoplasticity fibre
Tie up the inter-layer bonding force and mechanical property of metal laminate.
To achieve these goals, the present invention provides a kind of preparation method of thermoplastic fibre metal laminate, this method
Include the following steps：S1, offer thermoplasticity mix fine braided fabric；S2, the thermoplasticity is mixed to fine braided fabric and metal material stacking
Add arrangement, form plywood；S3, the plywood is suppressed under hot pressing condition, is then molded to obtain the heat in cooling condition
Plasitc fibers metal laminate, wherein, the thermoplasticity is mixed fine braided fabric and is formed by bundle weave, and the fibre bundle wraps simultaneously
Include thermoplastic fiber materials and reinforcing fiber materials.
Meanwhile a kind of thermoplastic fibre metal laminate is additionally provided in the present invention, the thermoplastic fibre metal laminate
Plate is prepared by method provided by the present invention.
Using above-mentioned technical proposal, the preparation method of thermoplastic fibre metal laminate provided by the present invention by using
Thermoplasticity mixes fine braided fabric instead of pre-impregnated sheet, can save the step of preparing pre-impregnated sheet, and mix fine braided fabric using thermoplasticity
In the characteristics of containing thermoplastic fiber materials and reinforcing fiber materials in every fibre bundle simultaneously so that thermoplastic fiber materials exist
That disperses in braided fabric is more uniformly distributed, and the material mechanical performance caused by resin concentration and/or fiber are concentrated is avoided to reduce, this
Outside by suppressing the plywood for including plasticity and mixing fine braided fabric and metal material layer under hot pressing condition so that the thermoplasticity of melting
Resin is flowed into the inside of metal material layer while coating reinforced fiber material is impregnated, i.e., so that presoaking and being molded a step
It completes, not only saves technological process, and thermoplastic fibre metal laminate inter-layer bonding force and mechanical property can be improved.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention, but be not construed as limiting the invention together.In the accompanying drawings：
Fig. 1 shows the structure diagram according to thermoplastic fibre metal laminate of the present invention.
Reference sign
1 metal material layer, 2 thermoplasticity mixes fine braided fabric.
Specific embodiment
The specific embodiment of the present invention is described in detail below.It is it should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood to comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It between the endpoint value of a range and individual point value and can be individually combined with each other between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
A kind of preparation method of thermoplastic fibre metal laminate is provided in the present invention, and this method includes following step
Suddenly：S1, offer thermoplasticity mix fine braided fabric；S2, the thermoplasticity is mixed into fine braided fabric and metal material layer is stacked, is formed
Plywood；S3, the plywood is suppressed under hot pressing condition, is then molded to obtain the thermoplastic fibre metal in cooling condition
Laminate, wherein, the thermoplasticity is mixed fine braided fabric and is formed by bundle weave, and the fibre bundle is simultaneously including thermoplastic fibre
Material and reinforcing fiber materials.
The preparation method of thermoplastic fibre metal laminate provided by the present invention mixes fine braided fabric by using thermoplasticity
Instead of pre-impregnated sheet, the step of preparing pre-impregnated sheet can be save, and mixed in fine braided fabric using thermoplasticity same in every fibre bundle
The characteristics of Shi Hanyou thermoplastic fiber materials and reinforcing fiber materials so that thermoplastic fiber materials disperse more in braided fabric
It is uniform, the material mechanical performance caused by resin concentration and/or fiber are concentrated is avoided to reduce, in addition by hot pressing condition
Lower compacting includes the plywood that plasticity mixes fine braided fabric and metal material layer so that the thermoplastic resin of melting increases in dipping cladding
While strong fibrous material, the inside of metal material layer is flowed into, i.e., is completed so that presoaking and being molded a step, not only saves work
Skill flow, and thermoplastic fibre metal laminate inter-layer bonding force and mechanical property can be improved.
According to the method for the present invention, wherein for fibre bundle structure there is no particular/special requirement, as long as wherein including simultaneously
Thermoplastic fiber materials and reinforcing fiber materials can reach uniformly mixed purpose.Under a kind of preferable case, the fibre bundle
By thermoplastic fiber materials monofilament and reinforcing fiber materials monofilament, (preferably the diameter of section of monofilament is 7-30 μm, more preferably 7-
20 μm) it is combined.Under another preferable case, the fibre bundle has cored cable architecture, and core is reinforcing fiber materials
(preferably the diameter of section of monofilament is 7-30 μm, more preferably 7-20 μm), clad is thermoplastic fiber materials.The present invention is adopted
Above-mentioned thermoplasticity mix fine braided fabric can be commercial product or according to topology requirement using prepared by prior art
Corresponding product, it is the emphasis protected of the present invention that the weaving that wherein thermoplasticity mixes fine braided fabric, which is not, uses ability
Common process known to domain is woven, and for specific weaving method, details are not described herein.
According to the method for the present invention, for thermoplastic fiber materials in fibre bundle and reinforcing fiber materials dosage not
Particular/special requirement is referred to this field when preparing pre-impregnated sheet, the proportionate relationship between thermoplastic resin and reinforcing material.At this
The content of the preferred thermoplastic fiber materials is 20-40 weight % in invention, and the content of the reinforcing fiber materials is 60-80
Weight %.
According to the method for the present invention, for being used to be compounded to form in fibre bundle or being formed the enhancing of core in fibre bundle
The diameter of section of fibrous material monofilament can change in wide range, under preferable case, the reinforcing fiber materials monofilament
Diameter of section is 7-30 μm, more preferably 7-20 μm.By limiting the diameter of section of reinforcing fiber materials monofilament, be conducive to more preferable
Optimization thermoplastic fibre metal laminate mechanical property.
According to the method for the present invention, one layer or more can be stacked in the laminate in adjacent two layers metal material layer
Layer thermoplasticity mixes fine braided fabric.The number of plies of fine braided fabric wherein is mixed for the thermoplasticity being superimposed and every layer of thermoplasticity mixes fibre
Braided fabric thickness is there is no specific requirement, under preferable case, the thermoplasticity that is stacked in adjacent two layers metal material layer
The depth and thickness of mixed fibre braided fabric are to be located at adjacent two layers metal material in prepared thermoplastic fibre metal laminate
The thickness of the fibrous layer for being impregnated with resin material in the bed of material is 0.1-2mm, particularly preferably more preferably 0.2-1mm, 0.2-
0.5mm。
According to the method for the present invention, can there is no particular/special requirement for thermoplastic fiber materials in fibre bundle, according to using
Demand reasonably selects, and under preferable case, the thermoplastic fiber materials are selected from polyphenylene sulfide (PPS, fusing point 280-
300 DEG C), polyamide (PA, fusing point be 260-265 DEG C), polypropylene (PP, fusing point are 164-170 DEG C), makrolon (PC, fusing point
Be 220-230 DEG C), polyether-ether-ketone (PEEK, fusing point be 334 DEG C), polyether ketone ketone (PEKK, fusing point are 338 DEG C) and gather to benzene two
In formic acid ethylene glycol fat (PET, fusing point are 250-265 DEG C) and polybutylene terephthalate's (PBT, fusing point are 225 DEG C)
It is one or more of.
According to the method for the present invention, can there is no particular/special requirement for reinforcing material in fibre bundle, be closed according to use demand
Reason selects, and under preferable case, the reinforcing fiber materials are one kind in glass fibre, carbon fiber and aramid fiber
It is or a variety of.
According to the method for the present invention, the plasticity is mixed into fine braided fabric in step S2 and is stacked it with metal material layer
Before, metal material layer is subjected to deoiling processing.The method of the deoiling is well known in the art, such as by above-mentioned gold
Belong to and being impregnated again with sour (such as nitric acid) after being impregnated with alkali (such as sodium hydroxide).In a kind of specific embodiment, such as can
30s is impregnated in the sodium hydrate aqueous solution of 10 weight % being put into above-mentioned metal, it is then water-soluble in the nitric acid of 5 weight %
30s is impregnated in liquid.
According to the method for the present invention, the plasticity is mixed into fine braided fabric in step S2 and is stacked it with metal material layer
Before, it still further comprises and coupling processing is carried out to metal material layer to increase the binding force in face to be combined.To metal material layer into
The step of row coupling processing, includes：By coupling agent and solvent according to weight ratio 0.1-10：100 ratio prepares coupling agent solution,
The metal material layer is immersed in the coupling agent solution or the coupling agent solution is coated in the metal material
The surface of layer, and the metal layer that surface is attached with to coupling agent is heat-treated 20-50min at a temperature of 60-90 DEG C.
Coupling agent employed in above-mentioned coupling processing includes but not limited to silane coupling agent, titanate coupling agent, chromium
It is complexed one or more in compound coupling agent.Wherein described silane coupling agent for amino silane, epoxy radicals silicone hydride, sulfenyl silane,
It is one or more in methacryloxypropyl silane, vinyl silanes, ureido silane and isocyanato silanes.It is even preparing
Used solvent is organic solvent during joining agent solution, includes but not limited to ethyl alcohol, dimethylbenzene, n-butanol, second two
It is one or more in alcohol butyl ether, butyl acetate, isopropanol, cyclohexanone and methyl iso-butyl ketone (MIBK).
According to the method for the present invention, the specific material for wherein used metal material layer and structure can be adopted without spy
Different requirement, using the conventional use of associated metal material layer of this field institute, for example, the metal layer can be to be closed selected from aluminium
Any one of golden plate, titanium alloy sheet and steel plate.In the present invention, it is preferred to use conventional aluminium alloy plate.For above-mentioned metal layer
Thickness, the present invention in be not particularly limited, can specifically be changed in wide range, those skilled in the art can be according to reality
Situation is adjusted, and under preferable case, the thickness of the metal layer is 0.1-3mm.
According to the method for the present invention, step S3 focuses on being rapidly heated to molten slightly above equal to thermoplastic resin
Point temperature so that thermoplastic resin is impregnated into reinforcing material fibre adjacent thereto in just tool mobility under external pressure effect
In peacekeeping metal material layer, realize thermoplastic resin to the uniform preimpregnation of fiber and and metal combination.It is described under preferable case
Hot pressing condition includes：Under the melting temperature optionally greater than the thermoplastic resin, preferably than the thermoplastic fiber materials
High 0.1-60 DEG C of fusing point at a temperature of, under 15-30Kg pressure pressurize handle 2-4min.In the case of preferred, the hot pressing
Condition further includes：The melting temperature optionally greater than the thermoplastic resin is directly warming up to through 30s-60s at room temperature.
In the case of with the method for the invention it is preferred to, in order to improve the resistance to of prepared thermoplastic fibre metal laminate
Hot property, under preferable case, the melting temperature of the thermoplastic resin is 150-350 DEG C.
According to the method for the present invention, after step S3 suppresses the laminate under hot pressing condition, further such that after compacting
Laminate cooling and shaping form required thermoplastic fibre metal laminate.During cooling and shaping.Cooling condition packet
It includes under the conditions of the pressure (so that product approval) identical with hot pressing compacting is kept, is cooled to room temperature.Wherein cooling procedure can be with
For natural cooling, or accelerate cooling, such as cold water cooling.
Meanwhile a kind of thermoplastic fibre metal layer prepared by the above method of the present invention is additionally provided in the present invention
Plywood.The hot thermoplastic fibre metal laminate can have preferable mechanical property and interlayer knot by the preparation of specific method
With joint efforts.
The present invention will be described in detail by way of examples below.
In following embodiment and comparative example, used raw material is described as follows：
Thermoplasticity mixes fine braided fabric A1：Commercially available from Denmark's lid grace (Comfil Aps) company, thickness in monolayer 0.30mm,
In be knitted to form the thermoplasticity mix fine braided fabric fibre bundle have cored cable architecture, core for glass fiber material (monofilament
Diameter of section is 15 μm), clad is polyphenylene sulfide fibre material (fusing point is 280-290 DEG C), and with the fibrous braid
Total weight on the basis of, the content of polyphenylene sulfide fibre material is 35 weight %, and the content of the glass fiber material is 65 weights
Measure %.
Thermoplasticity mixes fine braided fabric A2：Commercially available from Denmark's lid grace (Comfil Aps) company, thickness in monolayer 0.25mm,
In be knitted to form the thermoplasticity and mix in the fibre bundle of fine braided fabric while including polyphenyl thioether material monofilament and glass fiber material
Monofilament (diameter of section of monofilament is 12 μm), and on the basis of the total weight of the fibrous braid, the polyphenyl thioether material
The content of (fusing point is 280-290 DEG C) is 30 weight %, and the content of the glass fiber material is 70 weight %.
Thermoplasticity mixes fine braided fabric A3：Commercially available from JM companies, thickness in monolayer 0.40mm, wherein being knitted to form the thermoplasticity
Simultaneously including polyamide material (fusing point is 260-265 DEG C) monofilament and carbon fibre material monofilament in the fibre bundle of mixed fibre braided fabric
(diameter of section of monofilament is 7 μm), and on the basis of the total weight of the fibrous braid, the content of polyamide material is 25 weights
% is measured, the content of carbon fibre material is 75 weight %.
Thermoplasticity mixes fine braided fabric DA1：Take a diameter of 0.10mm commercially available from Langfang Run Yue monofilament Science and Technology Ltd.
Polyphenylene sulfide fibre (fusing point is 280-290 DEG C) and (diameter of section of monofilament is commercially available from the 352B glass fibres of megalith group
14 μm), using glass fibre as warp, PPS filaments are the thermoplasticity that the thickness in monolayer that weft hand woven is formed is 0.30mm
Mixed fibre braided fabric, wherein on the basis of the total weight that the thermoplasticity mixes fine braided fabric, the content of the thermoplastic fiber materials
For 40 weight %, the content of the reinforcing fiber materials is 60 weight %.
Thermoplasticity pre-impregnated sheet DA2：Commercially available from Dutch Teng Kate companies, thickness in monolayer 0.45mm, wherein pre-soaked resin are
Polyphenylene sulfide (fusing point is 280-290 DEG C), reinforcing fiber are two layers of stacked fiberglass braided object.The polyphenylene sulfide
The content of resin is 33 weight %, and the content of the glass fibrous braid is 67 weight %.
Aluminium alloy：The aluminium alloy Al-6061 up to Hardwear Pty Ltd. is extensively risen commercially available from Dongguan, Guangdong.
Embodiment 1
For illustrating the advantageous effect of thermoplastic fibre metal laminate of the present invention and preparation method thereof.Specific preparation method
It is as follows：
(1) by the aluminum alloy sheet of 0.4mm thickness (length and width are the size of 200mm × 100mm) (2), 10 weights are put into
It measures in the sodium hydrate aqueous solution of % and impregnates 30s, then impregnate 30s in the aqueous solution of nitric acid of 5 weight % again；
(2) by Silane coupling agent KH550 (commercially available from the sincere Chemical Co., Ltd. of Nanjing Olympic) and ethyl alcohol according to weight ratio 1:100
Silane coupler solution is prepared, the silane coupler solution is coated in the two panels aluminum alloy sheet table handled through step (1)
On face, then 30min is dried in 80 DEG C of baking ovens；
(3) thermoplasticity is mixed into fine braided fabric A1 and cuts into the size identical with aluminum alloy sheet, and thermoplasticity is mixed into fine volume
Fabric A1 and through step (2) handle aluminum alloy sheet according to aluminum alloy sheet-braided fabric (two layers)-aluminum alloy sheet structure
It stacks to form plywood；
(4) plywood is placed in mold, by electromagnetic heating mold after molding, by mold temperature liter in 50s
To 320 DEG C, apply pressurize processing 2min under 25Kg pressure, then cooling by water is unloaded to room temperature (30 DEG C) and pressed off at the same pressure
Mould obtains thermoplastic fibre metal laminate S1.
By the cross section of fibre metal laminate S1 by micro- sem observation it is found that the thermoplastic fibre metal laminate
By stack gradually aluminum alloy sheet, be impregnated with the fibrous layer (thickness 0.25mm) of resin material and aluminum alloy sheet is formed.
Embodiment 2
For illustrating the advantageous effect of thermoplastic fibre metal laminate of the present invention and preparation method thereof.
Preparation method：With reference to embodiment 1, difference lies in mix fine braided fabric A2 using thermoplasticity to mix fine braiding instead of thermoplasticity
Object A1 obtains thermoplastic fibre metal laminate S2.
By the cross section of fibre metal laminate S2 by micro- sem observation it is found that the fibre metal laminate is by successively
The aluminum alloy sheet of stacking, the fibrous layer (thickness 0.25mm) for being impregnated with resin material and aluminum alloy sheet are formed.
Embodiment 3
For illustrating the advantageous effect of thermoplastic fibre metal laminate of the present invention and preparation method thereof.Specific preparation method
It is as follows：
(1) by the aluminum alloy sheet of 0.2mm thickness (length and width are the size of 200mm × 100mm) (2), 10 weights are put into
It measures in the sodium hydrate aqueous solution of % and impregnates 30s, then impregnate 30s in the aqueous solution of nitric acid of 5 weight % again；
(2) by Silane coupling agent KH550 (commercially available from the sincere Chemical Co., Ltd. of Nanjing Olympic) and ethyl alcohol according to weight ratio 1:100
Silane coupler solution is prepared, the silane coupler solution is coated in the two panels aluminum alloy sheet table handled through step (1)
On face, then 50min is being dried in 60 DEG C of baking ovens；
(3) thermoplasticity is mixed into fine braided fabric A3 and cuts into the size identical with aluminum alloy sheet, and thermoplasticity is mixed into fine volume
Fabric A3 and through step (2) handle aluminum alloy sheet according to aluminum alloy sheet-braided fabric (three layers)-aluminum alloy sheet structure
It stacks to form plywood；
(4) plywood is placed in mold, mold is heated by torch after molding, by mold temperature liter in 30s
To 270 DEG C, apply pressurize processing 2min under 30Kg pressure, then cooling by water is unloaded to room temperature (30 DEG C) and pressed off at the same pressure
Mould obtains thermoplastic fibre metal laminate S3.
By the cross section of fibre metal laminate S1 by micro- sem observation it is found that the thermoplastic fibre metal laminate
By stack gradually aluminum alloy sheet, be impregnated with the fibrous layer (thickness 0.4mm) of resin material and aluminum alloy sheet is formed.
Comparative example 1
Illustrate the advantageous effect of thermoplastic fibre metal laminate of the present invention and preparation method thereof for reference.
Preparation method：With reference to embodiment 1, difference lies in mix fine braided fabric DA1 using thermoplasticity to mix fine volume instead of thermoplasticity
Fabric A1 obtains thermoplastic fibre metal laminate DS1.
By the cross section of fibre metal laminate DS1 by micro- sem observation it is found that the thermoplastic fibre metal laminate
Plate by stack gradually aluminum alloy sheet, be impregnated with the fibrous layer (thickness 0.25mm) of resin material and aluminum alloy sheet structure
Into.
Comparative example 2
Illustrate the advantageous effect of thermoplastic fibre metal laminate of the present invention and preparation method thereof for reference.
Preparation method：With reference to embodiment 1, difference lies in mix fine braided fabric instead of thermoplasticity using thermoplasticity pre-impregnated sheet DA2
A1, and thermoplasticity is mixed into fine braided fabric DA2 and cuts into the size identical with aluminum alloy sheet, thermoplasticity is mixed into fine braided fabric DA2
With through the aluminum alloy sheet that step (2) is handled shape is stacked according to the structure of aluminum alloy sheet-pre-impregnated sheet (one layer)-aluminum alloy sheet
Into plywood, thermoplastic fibre metal laminate DS2 is prepared.
By the cross section of fibre metal laminate DS2 by micro- sem observation it is found that the thermoplastic fibre metal laminate
Plate by stack gradually aluminum alloy sheet, be impregnated with the fibrous layer (thickness 0.4mm) of resin material and aluminum alloy sheet is formed.
Test case
(1) tensile strength is tested：Standard method in GB/T 228.1-2010 carries out tensile strength test, test
The results are shown in Table 1；
(2) bending strength is tested：Bending strength test, test result such as table are carried out according to the standard of YB/T 5349-2006
Shown in 1；
(3) shear strength test：According to the standard of GB/T 228.1-2010 shear by force using omnipotent pull-out test machine
Degree test, test result are as shown in table 1；
(4) peel test force：Fibre metal the laminate S1-S3 and DS1- that embodiment 1-3 and comparative example 1-2 are obtained
DS2 is cut to the batten that size is 100mm × 20mm respectively (wherein machine direction is batten length direction)；The batten that will be obtained
It on universal testing machine, is removed by 10mm/min of peeling rate, completely falls off the metal of stripping side, record
For data record in table 1, which is peel strength.
Table 1.
| Sample | Tensile strength (MPa) | Bending strength (MPa) | Shear strength (MPa) | Peeling force (N) |
| S1 | 456 | 516 | 33.10 | 308 |
| S2 | 448 | 503 | 31.05 | 294 |
| S3 | 517 | 620 | 34.56 | 318 |
| DS1 | 350 | 436 | 20.13 | 230 |
| DS2 | 375 | 457 | 25.46 | 251 |
By data in table 1 it is found that compared with comparative example DS1 and DS2, according to thermoplastic fibre metal provided by the present invention
Thermoplastic fibre metal laminate prepared by the S1-S3 of the preparation method of laminate has better mechanical strength and interlayer knot
With joint efforts.
Moreover, the preparation method of thermoplastic fibre metal laminate provided by the present invention, fibre is mixed by using thermoplasticity
Braided fabric replaces pre-impregnated sheet, can save the step of preparing pre-impregnated sheet；Include plasticity by being suppressed under hot pressing condition and mix fine volume
The plywood of fabric and metal material layer so that the thermoplastic resin of melting is while coating reinforced fiber material is impregnated, stream
Enter the inside to metal material layer, i.e., completed so that presoaking and being molded a step, not only save technological process.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail, within the scope of the technical concept of the present invention, a variety of simple variants can be carried out to technical scheme of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (13)
1. a kind of preparation method of thermoplastic fibre metal laminate, which is characterized in that the described method comprises the following steps：
S1, offer thermoplasticity mix fine braided fabric；
S2, the thermoplasticity is mixed into fine braided fabric and metal material layer is stacked, forms plywood；
S3, the plywood is suppressed under hot pressing condition, then molding obtains the thermoplastic fibre metal in the cooling condition
Laminate,
Wherein, the thermoplasticity is mixed fine braided fabric and is formed by bundle weave, and the fibre bundle is simultaneously including thermoplastic fibre material
Material and reinforcing fiber materials.
2. according to the method described in claim 1, wherein, the fibre bundle is by thermoplastic fiber materials monofilament and reinforcing fiber material
Material list silk is combined, and the diameter of section of preferably described reinforcing fiber materials monofilament is 7-30 μm.
3. according to the method described in claim 1, wherein, the fibre bundle has cored cable architecture, core is reinforcing fiber
Material, clad are thermoplastic fiber materials；It is preferred that the diameter of section of reinforcing fiber materials monofilament is 7-30 μm in the core.
4. method as claimed in any of claims 1 to 3, wherein, on the basis of the total weight of the fabric,
The content of the thermoplastic fiber materials is 20-40 weight %, and the content of the reinforcing fiber materials is 60-80 weight %.
5. method as claimed in any of claims 1 to 3, wherein, adjacent two layers metal material in the laminate
One or more layers thermoplasticity, which has been stacked, in layer mixes fine braided fabric.
6. method as claimed in any of claims 1 to 3, wherein, the thermoplastic fiber materials are selected from polyphenyl
Thioether, polyamide, polypropylene, makrolon, polyether-ether-ketone, polyether ketone ketone, polyethylene terephthalate and poly- to benzene two
One or more of formic acid butanediol fat.
7. method as claimed in any of claims 1 to 3, wherein, the reinforcing fiber materials are selected from glass fibers
It is one or more in dimension, carbon fiber and aramid fiber.
8. method as claimed in any of claims 1 to 3, wherein, the hot pressing condition includes：Optionally greater than institute
At a temperature of the fusing point for stating thermoplastic resin material, the temperature preferably than high 0.1-60 DEG C of the fusing point of the thermoplastic fiber materials
Under, pressurize processing 2-4min under 15-30Kg pressure.
9. according to the method described in claim 8, wherein, the hot pressing condition further includes：It is directly risen in 30s-60s at room temperature
Temperature is extremely optionally greater than the melting temperature of the thermoplastic resin.
10. according to the method described in claim 8, wherein, the melting temperature of the thermoplastic resin is 150-350 DEG C.
11. method as claimed in any of claims 1 to 3, wherein, the cooling condition includes：It is keeping and heat
Pressure is suppressed under identical pressure condition, is cooled to room temperature.
12. method as claimed in any of claims 1 to 3, wherein, the metal material layer be selected from aluminium alloy plate,
One kind in titanium alloy sheet and steel plate；Preferably, the thickness of the metal layer is 0.1-3mm.
13. a kind of thermoplastic fibre metal laminate, which is characterized in that the thermoplastic fibre metal laminate is by claim
Method in 1 to 12 described in any one prepares.
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| CN201611185987.4A CN108202513A (en) | 2016-12-20 | 2016-12-20 | A kind of thermoplastic fibre metal laminate and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111823667A (en) * | 2020-06-12 | 2020-10-27 | 燕山大学 | Rapid preparation process of Al/CFRTP/Al composite board |
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