CN107486954B - A kind of preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin - Google Patents
A kind of preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin Download PDFInfo
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- CN107486954B CN107486954B CN201710845009.6A CN201710845009A CN107486954B CN 107486954 B CN107486954 B CN 107486954B CN 201710845009 A CN201710845009 A CN 201710845009A CN 107486954 B CN107486954 B CN 107486954B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/127—Mono-aldehydes, e.g. formaldehyde; Monoketones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
- B29K2105/0845—Woven fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
Abstract
The invention discloses a kind of preparation methods of high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin, woven fabric is made using UHMWPE staple yarn, after chemical surface treatment and coupling agent treatment, vacuum imports thermosetting epoxy resin/curing agent mixed liquor at normal temperature, and compression moulding, it can be made into the composite plate for hitting bending performance more than tensile break strength, superelevation anti-side.
Description
Technical field
The present invention relates to field of material technology, and in particular to a kind of UHMWPE fiber/high-strength bending resistance of thermosetting epoxy resin
Roll over the preparation method of composite plate.
Background technique
Ultra high molecular weight polyethylene fiber, English name are Ultra High Molecular Weight
Polyethylene Fiber, abbreviation UHMWPE fiber, also known as high-strength high-modulus polyethylene fiber.The fiber has the following advantages that,
To determine that it is a kind of reinforcement material of good composite material: (1) high ratio modulus, high specific strength: UHMWPE fiber
With carbon fiber, aramid fiber and three big high-intensity fibers of title.Under equal quality, breaking strength reaches polyester fiber and high-quality steel
10 times or more.Meanwhile the elongation of UHMWPE fibrous fracture is low, work to break is big, with the very strong ability for absorbing energy, thus has
Impact resistance and anti-cut outstanding.(2) light weight, stability are good: UHMWPE fiber specific gravity only has 0.97g/cm3, can float
It is most light high-performance fiber in the world at present in the water surface.The uvioresistant and anti-seismic design of UHMWPE fiber are strong, and not
It is dissolved in usual vehicle, stable chemical performance.High-strength bend resistance composite plate is developed using UHMWPE fiber, needs to solve following
Technical problem: (1) fusing point of UHMWPE fiber is low, and 140 DEG C ~ 150 DEG C will lose its high-strength performance, therefore prepare compound
It needs to overcome temperature difficulty when material, perhaps tries to avoid high temperature in the high temperature resistance or preparation processing of reinforcing fiber.
(2) regain of UHMWPE fiber is only 0.03%, is not absorbed water substantially；Also it is not easy in conjunction with other solvents, poor compatibility, this is just
It will affect its combination with substrate.(3) UHMWPE fiber high ratio modulus, using UHMWPE filament fiber direct combination, system
At plate buckle resistance it is poor.
Summary of the invention
It is an object of the present invention to provide a kind of preparation sides of high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin
Method solves the above problems.
The technical scheme is that
A kind of preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin, this method include such as
Lower step:
(1) it prepares UHMWPE staple yarn woven fabric: selecting UHMWPE staple fiber that single thread or strand is made, then be made woven
Object；
(2) fabric pretreatment: the woven fabric is infiltrated in acetone soln, and sonic oscillation handles 3h ~ 5h, then uses water
Cleaning 5 ~ 10 times, then through 70 DEG C of drying 10h, stain fabric is made；
(3) oxidation modification is handled: bath raio 1:20 is pressed, goes stain fabric to be placed in oxidation solution for described, sonic oscillation 3h ~
Then 5h is washed with water 5 ~ 10 times, then through 70 DEG C of drying 10h, thick surface fabric is made；
(4) coupling agent modified processing: bath raio 1:20 is pressed, the thick surface fabric is placed in coupling agent solution, ultrasonic device
3h ~ 5h is vibrated, is then washed with water 5 ~ 10 times, then through 70 DEG C of drying 10h, surface attachment coupling agent fabric is made；
(5) prepared by composite plate:
A. select the PU film with a thickness of 0.1mm ~ 0.3mm, be cut into two it is rectangular, length and width within the scope of 50cm ~ 80cm,
It takes one of them rectangular PU film to be layed in prepare on platen, and is fixed with platen, bottom plate is made；
B. the strip for being cut into that width is 1cm ~ 1.5cm with a thickness of 0.5mm ~ 2mm high viscosity sealant is selected, along the bottom
Plate surrounding, which is pasted, fixes；
C. surface attachment coupling agent fabric is cut into rectangular, length and width dimensions are 15cm ~ 20cm smaller than the bottom plate, by institute
It states surface attachment coupling agent fabric and is layed in the bottom plate intermediate region, the edge of the surface attachment coupling agent fabric is the bottom of apart from
Edge 7.5cm ~ 10cm of plate, surface attachment coupling agent fabric is Nian Jie with the bottom plate, sample is made；
D. it selects with a thickness of 0.1mm ~ 0.3mm, the plain cloth made of polytetrafluoroethylene fibre, is cut into rectangular, length and width
It is 2cm ~ 4cm bigger than the sample, separation cloth is made, the separation cloth is covered in above the sample, surrounding is beyond described
Sample 1cm ~ 2cm；
The length of e. two open type pipes of clip, the open type pipe is 3cm ~ 5cm smaller than the width of sample, by the open type pipe axis
To Uniform Tension, keep its length 1cm ~ 2cm bigger than Sample Width, the open type pipe that two stretched is placed horizontally in the sample
With the bottom plate up and down two vacate on position, the open type pipe is parallel with the sample edge, and the open type pipe is apart from institute
Sample edge 3cm ~ 5cm is stated, two open type pipes are adhesively fixed with the bottom plate, wherein the open type positioned at the sample top
Pipe is input liquid-conveying ducts, and the open type pipe positioned at the sample lower part is known as exporting liquid-conveying ducts；
F. two root long degree of clip be 100cm ~ 200cm, the PVC hose that diameter is 5mm ~ 10mm, will a wherein PVC hose
One end be inserted in the input liquid-conveying ducts, be made input pipe；The output drain is inserted in one end of another PVC hose
Output duct is made in channel；
G. thermosetting epoxy resin and curing agent are mixed and made into reagent, the other end of the input pipe is placed in and is filled
In the container of the reagent, and input control is set on the input pipe and is switched；By another termination of the output duct
Enter the pipetting systems being made of vacuum pumping pump and hydrops case, and output control switch is set on the output duct；
H. common plastics window screening, clip squarely are selected, drain net is made in the separation big 2cm ~ 3cm of cloth described in length-width ratio, will
The drain net is placed in the sample and separates the top of cloth, and surrounding exceeds the separation cloth 1cm ~ 1.5cm, upper and lower distance input
Liquid-conveying ducts and output liquid-conveying ducts 2cm ~ 4cm；Select common plastics window screening, two width of clip be 1cm ~ 2cm, a length of 5cm ~
The strip sheet of 6cm is incited somebody to action with one of strip sheet in the other end of the input liquid-conveying ducts apart from the input pipe interface
The input liquid-conveying ducts and drain net overlap joint get up, with another strip sheet in the output liquid-conveying ducts described in
The other end of output duct interface gets up the output liquid-conveying ducts and drain net overlap joint；
I. another rectangular PU film is aligned with the bottom plate edge, is then overlayed to sealing strip, upper layer side is made
Shape PU film, i.e. cover board；
J. the input control switch is closed, the output control switch is opened, the vacuum pumping pump switch is opened, starts
Pumping, detaches the air in trial zone, sees whether the specific location of gas leakage and gas leakage, if any gas leakage, clip sealant
Leak repairing；
K. the input control switch is opened, so that reagent is inhaled into the input pipe and input liquid-conveying ducts, in reagent
Into the online portion of the drain, and when close to sample area, input control switch and output control switch are lowered, made
The reagent permeates mobile speed in 0.5cm/min in the sample area, passes through the sample area completely to the reagent
And when gradually mobile to the output liquid-conveying ducts, the input control switch is closed, inputs the reagent no longer, and turn down
The output control switch slows down the reagent to the output duct interface movement speed along the output liquid-conveying ducts,
The reagent is permeated in sample area, when the reagent is close to output duct, closes the output control switch；
L. steel plate similar in a block size and the sample is placed by side on to the sample, and pressurizes above the steel plate
20kg ~ 40kg, pressing time are 12h ~ for 24 hours, solidify composite plate of the sample with the reagent in conjunction with；
M. the composite plate is cut from the platen, and throws off the separation cloth and the institute of the composite plate front and back sides
Bottom plate is stated, the sample is imposed into hot pressing on moulding press, it is multiple to complete UHMWPE fiber/high-strength bend resistance of thermosetting epoxy resin
The production of plywood.
Further, the selection of single thread described in step (1) line density is 2.1dtex ~ 2.7dtex, length is 38mm ~ 51mm
UHMWPE fiber, through ring spinning be made line density be 194dtex ~ 292dtex single thread, the strand be the single thread system
At doublet cord, it is 320/10cm ~ 480 piece/10cm, latitude that the woven fabric, which is by warp and weft, warp count of the single thread,
Yarn density is 120/10cm ~ 140 piece/10cm, tissue is plain weave, or using the strand as warp and weft, warp count 240
Root/10cm ~ 320 piece/10cm, weft count are 70/10cm ~ 95 piece/10cm, tissue is plain weave.
Further, the configuration mode that solution is aoxidized described in step (3) is mass percent H2O2: water=50:50.
Further, the configuration mode of coupling agent solution described in step (4) is mass percent KH550 coupling agent: second
Alcohol (C2H5OH)=5:95.
Further, water described in step (2) ~ step (4) is distilled water or deionized water.
Further, it is 5mm ~ 10mm, thickness in 1mm or less that open type pipe described in the step e in step (5), which is by width,
PVC or PU leaf spiral shape roll, the diameter of the open type pipe is 5mm ~ 10mm.
Further, in the step f in step (5), PVC hose described in the input pipe is inserted in the input drain
The length in channel is 1cm ~ 2cm, and in the output duct, the length that the PVC hose is inserted in the output liquid-conveying ducts is 1cm
~2cm。
Further, in the step g in step (5), the production method of the reagent are as follows: the ratio of 100:27 by volume
Thermosetting epoxy resin liquid and curing agent are configured, then stirring 3min ~ 5min makes to be sufficiently mixed, and stands 3min ~ 5min, makes to mix
The bubble closed in liquid disappears substantially, and reagent is made.
Further, in the step m in step (5), the pressure of the hot pressing is 20MPa ~ 30MPa, and temperature is 50 DEG C, when
Between be 3h ~ 5h.
Further, it is controlled in 90min in step (5) from step (g) to step (k) deadline.
The present invention provides a kind of preparation method of high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin,
Woven fabric is made using UHMWPE staple yarn, successively chemical attack, coupling agent treatment, under room temperature vacuum import epoxy resin/
Curing agent mixed liquor, and compression moulding can be made into the composite plate for hitting bending more than tensile break strength, superelevation anti-side.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.Wherein,
Fig. 1 is a kind of preparation of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin of the present invention
The laying schematic diagram of method；
Fig. 2 is a kind of preparation of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin of the present invention
The test schematic diagram of method.
Specific embodiment
The present invention provides a kind of preparation method of high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin, packet
Include following steps:
(1) prepared by UHMWPE staple yarn woven fabric；
(2) fabric pretreatment；
(3) oxidation modification is handled；
(4) coupling agent modified processing；
(5) prepared by composite plate.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, With reference to embodiment
The present invention is described in further detail with attached drawing.Fig. 1 and Fig. 2 are please referred to, Fig. 1 is that a kind of UHMWPE of the present invention is fine
The laying schematic diagram of the preparation method of the high-strength bend resistance composite plate of dimension/thermosetting epoxy resin；Fig. 2 is one kind of the present invention
The test schematic diagram of the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin.
A kind of preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin, comprising:
Step 1: preparation UHMWPE staple yarn woven fabric:
It selects UHMWPE staple fiber that single thread or strand is made, then woven fabric is made.Wherein, the single thread selection line density is
2.1dtex ~ 2.7dtex, length be 38mm ~ 51mm UHMWPE fiber, through ring spinning be made line density be 194dtex ~
The single thread of 292dtex, the strand be the single thread made of doublet cord, the woven fabric be using the single thread as warp and weft,
Warp count is 320/10cm ~ 480 piece/10cm, weft count is 120/10cm ~ 140 piece/10cm, tissue is plain weave, or
Person using the strand as warp and weft, warp count is 240/10cm ~ 320 piece/10cm, weft count is 70/10cm ~ 95
Root/10cm, tissue are plain weave.
Step 2: fabric pretreatment: the purpose of processing is the chemical assistant added in removal spinning and weaving process
With the spot grease stain of attachment.
The woven fabric is infiltrated in acetone soln, handles 3h ~ 5h in sonic oscillation, then distilled water or deionized water
Cleaning 5 ~ 10 times, then through 70 DEG C of drying 10h, stain fabric is made；
Step 3: oxidation modification is handled: the purpose of processing passes through high concentration H2O2Oxidation corrosion, change fiber is original to put down
Sliding surface, expands the contact area of itself and coupling agent and substrate.
The configuration mode for aoxidizing solution is mass percent H2O2: water=50:50 removes stain fabric for described by bath raio 1:20
It being placed in oxidation solution, sonic oscillation 3h ~ 5h, then distilled water or deionized water are cleaned 5 ~ 10 times, then through 70 DEG C of drying 10h,
Thick surface fabric is made；
Step 4: coupling agent modified processing: the purpose of processing is by a certain amount of coupling agent attachment fabric surface, and raising is knitted
The combination effect of object and substrate.
The configuration mode of coupling agent solution is mass percent KH550 coupling agent: ethyl alcohol (C2H5OH)=5:95, by bath raio
The thick surface fabric is placed in coupling agent solution, sonic oscillation 3h ~ 5h by 1:20, then distilled water or deionized water cleaning 5
~ 10 times, then through 70 DEG C of drying 10h, surface attachment coupling agent fabric is made；
Step 5: prepared by composite plate:
A. select the PU film with a thickness of 0.1mm ~ 0.3mm, be cut into two it is rectangular, length and width within the scope of 50cm ~ 80cm,
It takes one of them rectangular PU film to be layed in prepare on platen 14, and fixed with platen 14, bottom plate 1 is made；
B. the strip for being cut into that width is 1cm ~ 1.5cm with a thickness of 0.5mm ~ 2mm high viscosity sealant is selected, along the bottom
1 surrounding of plate, which is pasted, fixes；
C. surface attachment coupling agent fabric is cut into rectangular, length and width dimensions are 15cm ~ 20cm smaller than the bottom plate 1, will
Surface attachment coupling agent fabric is layed in 1 intermediate region of bottom plate, the edge of the surface attachment coupling agent fabric away from
Edge 7.5cm ~ 10cm from bottom plate, surface attachment coupling agent fabric is be bonded with the bottom plate 1, sample 2 is made；
D. it selects with a thickness of 0.1mm ~ 0.3mm, the plain cloth made of polytetrafluoroethylene fibre, is cut into rectangular, length and width
It is 2cm ~ 4cm bigger than the sample 2, separation cloth 3 is made, the separation cloth 3 is covered in 2 top of sample, surrounding exceeds
About 1cm ~ the 2cm of sample 2；
E. it is that 5mm ~ 10mm, thickness are rolled in 1mm PVC or PU leaf spiral shape below that open type pipe, which is by width,
The diameter of the open type pipe is 5mm ~ 10mm, two open type pipes of clip, the length of the open type pipe is 3cm smaller than the width of sample ~
The open type pipe axial direction Uniform Tension is kept its length 1cm ~ 2cm bigger than Sample Width by 5cm, the open type pipe that two were stretched
Be placed horizontally in the sample 2 and the bottom plate 1 up and down two vacate on position, the open type pipe and 2 edge of sample
In parallel, two open type pipes and the bottom plate 1 are adhesively fixed by the open type pipe apart from the 2 edge 3cm ~ 5cm of sample, are made
Finished product, wherein the open type pipe positioned at the sample top is input liquid-conveying ducts 4, and the open type pipe positioned at the sample lower part claims
To export liquid-conveying ducts 5；
F. two root long degree of clip be 100cm ~ 200cm, the PVC hose that diameter is 5mm ~ 10mm, will a wherein PVC hose
One end be inserted in the input liquid-conveying ducts 4 input pipe 6 be made；The output is inserted in one end of another PVC hose to lead
Output duct 7 is made in liquid channel 5, wherein PVC hose described in the input pipe 6 is inserted in the length of the input liquid-conveying ducts 4
Spending is 1cm ~ 2cm, and in the output duct 7, the length that the PVC hose is inserted in the output liquid-conveying ducts 5 is 1cm ~ 2cm；
G. the proportional arrangement thermosetting epoxy resin liquid and curing agent of 100:27 by volume, then stir 3min ~
5min makes to be sufficiently mixed, and stands 3min ~ 5min, the bubble in mixed liquor is made to disappear substantially, and reagent 8 is made.Reagent 8 is got out,
The other end of the input pipe 6 is placed in the container for filling the reagent 8, and input is set on the input pipe 6
Control switch；The pipetting systems that the other end access of the output duct 7 is made of vacuum pumping pump 9 and hydrops case 10, and
Output control switch is set on the output duct 7；
H. common plastics window screening, clip squarely are selected, drain net 11 is made in the separation big 2cm ~ 3cm of cloth described in length-width ratio,
By the drain net 11 be placed in the sample and separate cloth 2 top, surrounding exceed the separation cloth 31cm ~ 1.5cm, up and down away from
From input liquid-conveying ducts 4 and the output about 2cm ~ 4cm of liquid-conveying ducts 5；Select common plastics window screening, two width of clip be 1cm ~ 2cm,
The strip sheet of a length of 5cm ~ 6cm, with one of strip sheet in the input liquid-conveying ducts 4 apart from 6 interface of input pipe
The other end by the input liquid-conveying ducts 4 and the drain net 11 overlap joint get up, with another strip sheet it is described output lead
The other end of the liquid channel 5 apart from 7 interface of output duct overlaps the output liquid-conveying ducts 5 and the drain net 11
Come；
I. another rectangular PU film is aligned with 1 edge of bottom plate, is then overlayed to sealing strip 12, upper layer is made
Rectangular PU film, i.e. cover board 13；
J. the input control switch is closed, the output control switch is opened, the vacuum pumping pump switch is opened, starts
Pumping, detaches the air in trial zone, sees whether the specific location of gas leakage and gas leakage, if any gas leakage, clip sealant
Leak repairing；
K. the input control switch is opened, so that reagent is inhaled into the input pipe 6 and input liquid-conveying ducts 4, is trying
Agent 8 enters 11 top of drain net, and when close to sample area, will be under input control switch and output control switch
It adjusts, the reagent 8 is made to permeate mobile speed in the sample area in 0.5cm/min, to the reagent 8 completely by described
Sample area and it is gradually mobile to the output liquid-conveying ducts 5 when, close the input control switch, keep the reagent 8 no longer defeated
Enter, and turn the output control switch down, moves the reagent 8 to the output duct interface along the output liquid-conveying ducts 5
Dynamic speed slows down, and the reagent is permeated in sample area, when the reagent 8 is close to output duct, closes the output and controls and opens
It closes；
L. steel plate similar in a block size and the sample is placed by side on to the sample, and pressurizes above the steel plate
20kg ~ 40kg, pressing time are 12h ~ for 24 hours, and the composite plate for combining the sample 2 with the reagent 8 solidifies；
M. the composite plate is cut from the platen 14, and throws off the separation cloth 3 of the composite plate front and back sides
With the bottom plate, the sample 2 is imposed into hot pressing on moulding press, the pressure of the hot pressing is 20MPa ~ 30MPa, temperature 50
DEG C, the time is 3h ~ 5h, completes the production of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin.
The above-mentioned control from step (g) to step (k) deadline is in 90min.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawings and examples
Further illustrate technical solution of the present invention.But the present invention is not limited to listed embodiments, should also be included in institute of the present invention
It is required that interest field in other any well known change.
Firstly, " one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the invention
A particular feature, structure, or characteristic in formula." in one embodiment " that different places occur in the present specification not refers both to
The same embodiment, nor the individual or selective embodiment mutually exclusive with other embodiments.
Secondly, the present invention is described in detail using structural schematic diagram etc., when describing the embodiments of the present invention, for convenient for saying
Bright, schematic diagram can disobey general proportion and make partial enlargement, and the schematic diagram is example, should not limit the present invention herein
The range of protection.In addition, the three-dimensional space of length, width and depth should be included in actual fabrication.
Embodiment one
A kind of preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin, comprising:
(1) prepared by UHMWPE staple yarn woven fabric
The UHMWPE fiber that selection line density is 2.1dtex ~ 2.7dtex, length is 38mm ~ 51mm, through ring spinning system
It is 194dtex(20Ne at line density) ~ 292dtex(30Ne) single thread.Above-mentioned single thread is selected, 320/10cm of warp count is made
~ 480/10cm, 120/10cm ~ 140 piece of weft count/10cm plain weave woven fabric.Above-mentioned single thread can also be added
240/10cm ~ 320 piece of warp count/10cm, 70/10cm ~ 95 piece of weft count/10cm is being made at doublet cord in work
Plain weave woven fabric.Manufactured goods are known as fabric 1.
(2) fabric pretreatment
Method is that above-mentioned fabrics 1 are infiltrated in acetone soln, 3h ~ 5h is handled in ultrasonator, then distilled water
Cleaning 5 ~ 10 times, then through 70 DEG C of drying 10h.Manufactured goods are known as fabric 2.
(3) oxidation modification is handled
Method is H by mass percentage2O2: water=50:50 configuration oxidation solution.By bath raio 1:20, above-mentioned fabrics 2 are placed in
Wherein, ultrasonic device vibrates 3h ~ 5h, and then distilled water cleans 5 ~ 10 times, then through 70 DEG C of drying 10h.Manufactured goods are known as fabric 3.
(4) coupling agent modified processing
Method is KH550 coupling agent by mass percentage: ethyl alcohol (C2H5OH)=5:95 configures coupling agent solution.By bath raio
Above-mentioned fabrics 3 are placed in one by 1:20, and ultrasonic device vibrates 3h ~ 5h, and then distilled water cleans 5 ~ 10 times, then through 70 DEG C of dryings
10h.Manufactured goods are known as fabric 4.
(5) prepared by composite plate
A. select the PU film with a thickness of 0.1mm ~ 0.3mm, be cut into 2 it is rectangular, length and width according to preparation composite plate size
Setting.It takes one of them rectangular PU film to be laid on to prepare on platen, and is fixed in platen in surrounding.Manufactured goods are known as bottom
Plate.
B. thickness 0.5mm ~ 1mm high viscosity sealant is selected, 1cm ~ 1.5cm is cut into and sees wide strip, along above-mentioned bottom plate four
It pastes in week and fixes, 2cm ~ 3cm when stickup apart from edge, quadrangle is overlapping, leaves no gaps.
C. above-mentioned fabrics 4 are cut into rectangular, length and width dimensions are 15cm ~ 20cm smaller than above-mentioned bottom plate.It is layed in bottom plate
Between region, edge 7.5cm ~ 10cm of 4 edge of fabric apart from bottom plate be Nian Jie with bottom plate by it in 4 edge of fabric with double-sided adhesive.System
Finished product is known as sample.
D. thickness 0.1mm ~ 0.3mm, plain cloth made of polytetrafluoroethylene fibre are selected, be cut into it is rectangular, in length-width ratio
State the big 2cm ~ 4cm of sample.Manufactured goods are known as separating cloth.Above-mentioned separation cloth is covered in above sample, surrounding beyond sample 1cm ~
2cm。
E. to choose be 5mm ~ 10mm by width, thickness 1mm PVC(below or PU) diameter that rolls into of leaf spiral shape is
The open type pipe of 5mm ~ 10mm, clip 2, length is 3cm ~ 5cm smaller than Sample Width,.Above-mentioned open type pipe is axially relatively evenly drawn
It stretches, keeps its length 1cm ~ 2cm bigger than Sample Width, the gauges such as basic expose gap, pore size 1mm ~ 1.5mm between thin slice.
By the open type pipe that two stretched be placed horizontally in sample and bottom plate up and down two vacate on position, open type pipe and sample edge
In parallel, apart from sample edge 3cm ~ 5cm.2 open type pipes are adhesively fixed with bottom plate with double-sided adhesive.In manufactured goods, it is located at top
Be known as input liquid-conveying ducts, lower part be known as output liquid-conveying ducts.
F. the PVC hose of clip diameter 5mm ~ 10mm, 2, length 100cm ~ 200cm.By an end cap of a PVC hose
Enter to input liquid-conveying ducts, is inserted in input liquid-conveying ducts length about 1cm ~ 2cm, referred to as input pipe；By the one of another PVC hose
End cap enters to export liquid-conveying ducts, is inserted in output liquid-conveying ducts length about 1cm ~ 2cm, referred to as output duct.
G. the proportional arrangement heat curing type thermosetting epoxy resin liquid and curing agent of 100:27 by volume, stirring 3min ~
5min makes to be sufficiently mixed, and stands 3min ~ 5min, the bubble in mixed liquor is made to disappear substantially.Manufactured goods are known as reagent.It will be above-mentioned defeated
The other end for entering conduit is placed in mentioned reagent container, and input control is arranged on input pipe and switchs.By output duct
The pipetting systems that other end access merging is made of vacuum pumping pump and hydrops case, and setting output control is opened on output duct
It closes.
H. common plastics window screening is selected, clip is rectangular out, and length-width ratio separates the big 2cm ~ 3cm of cloth, referred to as drain net.It will be above-mentioned
Drain net is placed in sample and separates the top of cloth, and surrounding is beyond separation cloth 1cm ~ 1.5cm, upper and lower distance input liquid-conveying ducts and defeated
Liquid-conveying ducts 2cm ~ 4cm out.Select above-mentioned common plastics window screening, 2 strip sheets of clip, wide 1cm ~ 2cm, long 5cm ~ 6cm or so.
The other end with a strip sheet in input liquid-conveying ducts distance input catheter interface will input liquid-conveying ducts and drain net overlap joint
Get up, liquid-conveying ducts and drain will be exported in the other end of the output liquid-conveying ducts apart from output duct interface with another strip sheet
Net overlap joint gets up.
I. another rectangular PU film and bottom plate edge is substantially aligned, it attaches on sealing strip, will firmly be compacted everywhere.
The manufactured rectangular PU film in upper layer is known as cover board.
J. input control switch is closed, output control switch is opened, vacuum pump switch is opened, starts to be evacuated, make trial zone
Interior air is pumped away quickly, and examines the specific location for whether having gas leakage and gas leakage, and if any gas leakage, separately clip is sealed
Glue leak repairing.
K. input control switch is opened, reagent is made to be inhaled into input pipe and input liquid-conveying ducts quickly.Reagent gradually
When into the online portion of drain close to sample area, input control switch and output control switch are suitably lowered, make reagent in sample
Mobile speed is permeated in product area substantially in 0.5cm/min.Candidate agent passes through sample area and completely gradually to output liquid-conveying ducts
It is mobile, input control switch is closed, inputs reagent no longer, and output control switch is further turned down, makes reagent along output
Liquid-conveying ducts slow down to output duct interface movement speed, and reagent is further fully penetrated in sample area.Candidate agent substantially close to
When output duct, output control switch is closed.
L. steel plate similar in a block size and sample is placed above sample, and side's pressurization 20kg ~ 40kg on the steel plate, add
Pressure time 12h ~ for 24 hours, solidify composite plate of the sample in conjunction with reagent substantially.
M. composite plate is cut from platen, and throws off the separation cloth and bottom plate PU film of composite plate front and back sides.By sample
Hot pressing, pressure 20MPa ~ 30MPa, temperature 50 C, time 3h ~ 5h are imposed on moulding press.
Embodiment two
The implementation case shows a kind of by a kind of UHMWPE fiber/thermosetting epoxy resin made by one step of embodiment
High-strength bend resistance composite plate:
Warp thread is made using 32Ne/2 UHMWPE staple yarn, 21NeUHMWPE staple yarn makees weft yarn, warp count 300
Plain weave fabric is made in 120 root/10cm, weft count/10cm, and manufactured UHMWPE fiber/thermosetting epoxy resin is multiple
Plywood, drawn experimental test, average tensile breaking strength are answered up to 6.7GPa with made of close grammes per square metre carbon fibre fabric
7 GPa of intensity ~ 8.5GPa of plywood is close.It is tested through three point bending test, bending point displacement reaches 2cm or more, and not
It can be broken.And the three point bending test of similar carbon fiber composite board accuses brittle failure less than 0.5mm in displacement.
Embodiment three
The implementation case shows a kind of by a kind of UHMWPE fiber/thermosetting epoxy resin made by one step of embodiment
High-strength bend resistance composite plate:
Warp thread is made using 32NeUHMWPE staple yarn, 21Ne/2UHMWPE staple yarn makees weft yarn, warp count 480
Plain weave fabric is made in 70 root/10cm, weft count/10cm, and manufactured UHMWPE fiber/thermosetting epoxy resin is compound
Plate, tensile break strength up to 9.6GPa, with the intensity 9.6GPa of composite plate made of close grammes per square metre carbon fibre fabric ~
11.5GPa is close.It is tested through three point bending test, bending point displacement reaches 2cm or more, and will not be broken.And similar carbon
The three point bending test of fiber composite plate accuses brittle failure less than 0.5mm in displacement.
In conclusion the invention discloses a kind of high-strength bend resistance composite plates of UHMWPE fiber/thermosetting epoxy resin
Woven fabric is made using UHMWPE staple yarn, successively chemical attack, coupling agent treatment in preparation method, and vacuum imports under room temperature
Epoxy resin/curing agent mixed liquor, and compression moulding can be made into have and hits bending more than tensile break strength, superelevation anti-side
Composite plate.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferable
Embodiment describes the invention in detail, those skilled in the art should understand that, it can be to technology of the invention
Scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered in this hair
In bright scope of the claims.
Claims (10)
1. a kind of preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin, which is characterized in that the party
Method includes the following steps:
(1) it prepares UHMWPE staple yarn woven fabric: selecting UHMWPE staple fiber that single thread or strand is made, then woven fabric is made；
(2) fabric pretreatment: the woven fabric is infiltrated in acetone soln, and sonic oscillation handles 3h~5h, then clear with water
It washes 5~10 times, then through 70 DEG C of drying 10h, stain fabric is made；
(3) oxidation modification is handled: bath raio 1:20 is pressed, goes stain fabric to be placed in oxidation solution for described, sonic oscillation 3h~5h, so
After wash with water 5~10 times, then through 70 DEG C of drying 10h, thick surface fabric is made；
(4) coupling agent modified processing: pressing bath raio 1:20, the thick surface fabric be placed in coupling agent solution, ultrasonic device oscillation
Then 3h~5h is washed with water 5~10 times, then through 70 DEG C of drying 10h, surface attachment coupling agent fabric is made；
(5) prepared by composite plate:
A. select the PU film with a thickness of 0.1mm~0.3mm, be cut into two it is rectangular, length and width take it within the scope of 50cm~80cm
In a rectangular PU film be layed in and prepare on platen, and fixed with platen, bottom plate be made；
B. the strip for being cut into that width is 1cm~1.5cm with a thickness of 0.5mm~2mm high viscosity sealant is selected, along the bottom plate
Surrounding, which is pasted, fixes；
C. surface attachment coupling agent fabric is cut into rectangular, length and width dimensions are 15cm~20cm smaller than the bottom plate, will be described
Surface attachment coupling agent fabric is layed in the bottom plate intermediate region, and the edge of the surface attachment coupling agent fabric is apart from bottom plate
Edge 7.5cm~10cm, by the surface attachment coupling agent fabric it is Nian Jie with the bottom plate, sample is made；
D. it selects with a thickness of 0.1mm~0.3mm, the plain cloth made of polytetrafluoroethylene fibre, is cut into rectangular, length-width ratio institute
Big 2cm~the 4cm of sample is stated, separation cloth is made, the separation cloth is covered in above the sample, surrounding exceeds the sample
1cm~2cm；
The length of e. two open type pipes of clip, the open type pipe is 3cm~5cm smaller than the width of sample, and the open type pipe is axial
Uniform Tension keeps its length 1cm~2cm bigger than Sample Width, and the open type pipe that two stretched is placed horizontally in the sample
With the bottom plate up and down two vacate on position, the open type pipe is parallel with the sample edge, and the open type pipe is apart from institute
Sample edge 3cm~5cm is stated, two open type pipes are adhesively fixed with the bottom plate, wherein the open type positioned at the sample top
Pipe is input liquid-conveying ducts, and the open type pipe positioned at the sample lower part is known as exporting liquid-conveying ducts；
F. the PVC hose that root long degree is 100cm~200cm, diameter is 5mm~10mm of clip two, by wherein PVC hose
The input liquid-conveying ducts are inserted in one end, and input pipe is made, at this point, one end of the input pipe connects the input drain
The one end in channel；The output liquid-conveying ducts are inserted in one end of another PVC hose, output duct are made, at this point, described defeated
One end of conduit connects one end of the output liquid-conveying ducts out；
G. thermosetting epoxy resin and curing agent are mixed and made into reagent, the other end of the input pipe are placed in described in filling
In the container of reagent, and input control is set on the input pipe and is switched；By the access of the other end of the output duct by
The pipetting systems of vacuum pumping pump and hydrops case composition, and output control switch is set on the output duct；
H. common plastics window screening, clip squarely are selected, drain net is made, by institute in the separation big 2cm~3cm of cloth described in length-width ratio
It states drain net to be placed in the sample and separate the top of cloth, surrounding exceeds the separation cloth 1cm~1.5cm, upper and lower distance input
Liquid-conveying ducts and output liquid-conveying ducts 2cm~4cm；Common plastics window screening is selected, two width of clip are 1cm~2cm, a length of 5cm
The strip sheet of~6cm, with one of strip sheet it is described input liquid-conveying ducts the other end by the input liquid-conveying ducts with
Drain net overlap joint gets up, with another strip sheet the output liquid-conveying ducts the other end by the output liquid-conveying ducts
Get up with drain net overlap joint；
I. another rectangular PU film is aligned with the bottom plate edge, is then overlayed to sealant, the rectangular PU in upper layer is made
Film, i.e. cover board；
J. the input control switch is closed, the output control switch is opened, the vacuum pumping pump switch is opened, starts to take out
Gas detaches the air in trial zone, sees whether the specific location of gas leakage and gas leakage, and if any gas leakage, clip sealant is mended
Leakage；
K. the input control switch is opened, reagent is made to be inhaled into the input pipe and input liquid-conveying ducts, is entered in reagent
The online portion of drain, and when close to sample area, input control switch and output control switch are lowered, made described
Reagent permeates mobile speed in 0.5cm/min in the sample area, to the reagent pass through completely the sample area and by
When gradually mobile to the output liquid-conveying ducts, the input control switch is closed, inputs the reagent no longer, and is turned down described
Output control switch slows down the reagent to the output duct interface movement speed along the output liquid-conveying ducts, described
Reagent is permeated in sample area, when the reagent is close to output duct, closes the output control switch；
L. steel plate similar in a block size and the sample, and the 20kg that pressurizes above the steel plate place in side on to the sample
~40kg, pressing time are 12h~for 24 hours, solidify composite plate of the sample with the reagent in conjunction with；
M. the composite plate being cut from the platen, the obverse and reverse of the composite plate is respectively to separate cloth and bottom plate,
The sample is imposed on moulding press hot pressing, completes UHMWPE fiber/heat curing type by the obverse and reverse for throwing off the composite plate
The production of the high-strength bend resistance composite plate of epoxy resin.
2. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: single thread described in step (1) is selected, line density is 2.1dtex~2.7dtex, length is 38mm~51mm's
The single thread that line density is 194dtex~292dtex is made through ring spinning in UHMWPE fiber, and the strand is the single thread system
At doublet cord, it is 320/10cm~480 piece/10cm, latitude that the woven fabric, which is by warp and weft, warp count of the single thread,
Yarn density is 120/10cm~140 piece/10cm, tissue is plain weave, or is by warp and weft, warp count of the strand
240/10cm~320 piece/10cm, weft count be 70/10cm~95 piece/10cm, tissue be plain weave.
3. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: the configuration mode for aoxidizing solution described in step (3) is mass percent H2O2: water=50:50.
4. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: the configuration mode of coupling agent solution described in step (4) is mass percent KH550 coupling agent: ethyl alcohol
(C2H5OH)=5:95.
5. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: water described in step (2)~step (4) is distilled water or deionized water.
6. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: it is 5mm~10mm, thickness in 1mm PVC below that open type pipe described in step e in step (5), which is by width,
Or PU leaf spiral shape rolls, the diameter of the open type pipe is 5mm~10mm.
7. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: PVC hose described in the input pipe is inserted in the input liquid-conveying ducts in step f in step (5)
Length is 1cm~2cm, in the output duct, the PVC hose be inserted in the output liquid-conveying ducts length be 1cm~
2cm。
8. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: in step g in step (5), the production method of the reagent are as follows: the proportional arrangement heat of 100:27 by volume
Curable type epoxy resin liquid and curing agent, then stirring 3min~5min makes to be sufficiently mixed, and stands 3min~5min, makes mixed liquor
In bubble disappear substantially, be made reagent.
9. the preparation method of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1,
It is characterized by: the pressure of the hot pressing is 20MPa~30MPa in step m in step (5), temperature is 50 DEG C, and the time is
3h~5h.
10. the preparation side of the high-strength bend resistance composite plate of UHMWPE fiber/thermosetting epoxy resin according to claim 1
Method, it is characterised in that: controlled in 90min in step (5) from step g to the step k deadline.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157971A (en) * | 1993-12-01 | 1995-06-20 | Unitika Ltd | Woven glass fiber fabric for resin-reinforcement |
| CN103410863A (en) * | 2013-07-30 | 2013-11-27 | 广东工业大学 | Half-bearing, material, device and method for steel backing/carbon fiber knitted fabric self-lubricating lining |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157971A (en) * | 1993-12-01 | 1995-06-20 | Unitika Ltd | Woven glass fiber fabric for resin-reinforcement |
| CN103410863A (en) * | 2013-07-30 | 2013-11-27 | 广东工业大学 | Half-bearing, material, device and method for steel backing/carbon fiber knitted fabric self-lubricating lining |
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