CN106948210A - A kind of method that foaming process prepares fibre reinforced composites - Google Patents

A kind of method that foaming process prepares fibre reinforced composites Download PDF

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Publication number
CN106948210A
CN106948210A CN201710098197.0A CN201710098197A CN106948210A CN 106948210 A CN106948210 A CN 106948210A CN 201710098197 A CN201710098197 A CN 201710098197A CN 106948210 A CN106948210 A CN 106948210A
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fiber
reinforced composites
fibre reinforced
foaming
fibre
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CN106948210B (en
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王习文
侯邱鹏
李仁坤
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10—Composite fibres
    • D21H15/12—Composite fibres partly organic, partly inorganic
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention belongs to technical field of composite materials, a kind of method that foaming process prepares fibre reinforced composites is disclosed.Methods described is：Foaming agent is injected into foaming vessel to mix with fibrous suspension, then gas injection, impact or churned mechanically mode mixed foaming are used, produce foamed slurry of the volume concentration of gas phase between 55%~80%, online is manufactured paper with pulp shaping, then lather collapse is eliminated using vacuumizing, by the way of shower water or contact squeezing, individual layer paper is formed after drying, multiple individual layer paper are combined by certain grammes per square metre and thickness, hot pressing or compression molding are carried out, the fibre reinforced composites are obtained.The present invention substitutes water come bearing fiber using foam, enhancing phase fiber is evenly distributed in the composite, enhancing effect is obvious.

Description

A kind of method that foaming process prepares fibre reinforced composites
Technical field
The invention belongs to technical field of composite materials, and in particular to a kind of foaming process prepares fibre reinforced composites Method.
Background technology
Fibre reinforced composites are the new materials of a kind of lightweight, high intensity, with corrosion-resistant, good mechanical performance Superperformance.With the light-weighted development in the fields such as automobile, space flight, every profession and trade to the demands of fibre reinforced composites increasingly Greatly, more and more higher is required.Requirement of the composite formed process in terms of water saving, energy-conservation, increase economic benefit, reduction pollution Also improve constantly, be badly in need of with other fluids substitute water to disperse, conveying fiber, formed page technology.
At present, fibre reinforced composites have a reinforcing fiber skewness, the defect, this pole such as forming mode energy consumption is big The earth effect production and application of material.
The content of the invention
In place of shortcoming and defect in order to solve above prior art, primary and foremost purpose of the invention is to provide a kind of foam The method that forming process prepares fibre reinforced composites.
Another object of the present invention is to provide a kind of fibre reinforced composites prepared by the above method.
The object of the invention is achieved through the following technical solutions：
A kind of method that foaming process prepares fibre reinforced composites, including following preparation process：
Inject foaming agent into foaming vessel to mix with fibrous suspension, then using gas injection, impact or churned mechanically Mode mixed foaming, produces foamed slurry of the volume concentration of gas phase between 55%~80%, and then shaping of manufacturing paper with pulp of surfing the Net uses Vacuumize, the mode that shower water or contact are squeezed eliminates lather collapse, individual layer paper is formed after drying, by certain gram Multiple individual layer paper are combined by weight and thickness, are carried out hot pressing or compression molding, are obtained the fibre reinforced composites.
Preferably, described foaming agent is polyvinyl alcohol surfactant, lauryl sodium sulfate surfactant, fat At least one in alcohol polyethenoxy ether sodium sulfate surfactant, rosin soap surfactant, polyoxyethylene surfactant Kind；The alcoholysis degree of the polyvinyl alcohol surfactant is preferably 70%~90%, and viscosity is preferably 40~48mPas；It is described The alcoholysis degree of lauryl sodium sulfate surfactant be preferably 90%~95%.
Preferably, the addition of the foaming agent is the 0.1%~10% of foamed slurry quality.
Described fibrous suspension includes enhancing phase fiber and matrix phase fiber；The enhancing preferred glass fibers of phase fiber At least one in dimension, carbon fiber, string, nano-cellulose fiber, ceramic fibre, metallic fiber, aramid fiber；It is described The double melting-point fibers of the preferred polyethylene fibre of matrix phase fiber, polyethylene/polypropylene, polypropylene fibre, polyacrylonitrile fibre, poly- pair At least one in xyxylene glycol ester fiber, polyvinyl chloride fibre, acid fiber by polylactic, poly fiber Kind；It is (1~5) to strengthen phase fiber with the mass ratio of matrix phase fiber:(95~99).
Preferably, described gas injection refers to injection air, nitrogen or carbon dioxide.
Preferably, the fiber total content of the foamed slurry is 0.01%~5wt.%, and foam diameter is 50~400 μm.
Preferably, the scope of the vacuum vacuumized is 10-5~105Pa, more preferably 102~105Pa；The spray The pressure of water drenching is 1.5 × 105~3 × 105Pa, more preferably 1.8 × 105~2.5 × 105Pa；The squeezing of the contact squeezing Pressure is 1 × 105~2 × 105Pa, more preferably 1.3 × 105~1.5 × 105Pa。
Preferably, described drying refer to dry to paper mass dryness fraction be 10%~80%, more preferably mass dryness fraction be 40%~ 50%.
Preferably, it is described to refer to that grammes per square metre is 50~3000g/m by certain grammes per square metre and thickness2, thickness be 1~100mm；More It is preferred that grammes per square metre is 100~200g/m2, thickness be 2~20mm.
Preferably, the temperature of the hot pressing or molding is 130~200 DEG C, and the time is 0.5~30min；More preferably temperature is 175~185 DEG C, the time is 2~10min.
A kind of fibre reinforced composites, are prepared by the above method.
The preparation method and resulting product of the present invention has the following advantages that and beneficial effect：
(1) present invention is manufactured paper with pulp complex technique using foaming process, and water is substituted with foam come bearing fiber, makes enhancing mutually fine Dimension is evenly distributed in the composite, improves enhancing effect；
(2) present invention can be using nano-cellulose fiber as one of enhancing phase, and the interface for improving composite is compatible Property.
Brief description of the drawings
Fig. 1 is the structural representation of the oblique net paper machine used in the embodiment of the present invention 13；
Fig. 2 is the fundamental diagram of the contact squeezing defoaming device used in the embodiment of the present invention 13；
Fig. 3 is hot-pressing processing schematic flow sheet in the embodiment of the present invention 13.
Embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
(1) polyvinyl alcohol surfactant (alcoholysis degree is 80%, and viscosity is 45mPas) plus a small amount of water are diluted, are made into Foaming agent solution A；Polyethylene fibre is diluted with water, slurry B is obtained；By nano-cellulose fiber and water mixed diluting, obtain Slurry C；Tri- kinds of solution of A, B, C are blended in stock tank jointly, stirred by high speed machine, obtaining volume concentration of gas phase is 55%th, the foamed slurry that fiber total content is 1wt.%, foam diameter is 50~400 μm；Wherein polyvinyl alcohol surfactant The net content of addition is the 1% of foamed slurry quality, and the ratio between net content of polyethylene fibre and nano-cellulose fiber is 99:1.
(2) foamed slurry prepared is once manufactured paper with pulp shaping using cylinder mould machine, is then 10 in vacuum2Pa conditions Under vacuumize and eliminate lather collapse, it is 40% then to dry to mass dryness fraction, obtains monolayer sheet；
(3) it is 200g/m by page quantification2, multiple monolayer sheets are combined, 175~185 DEG C of hot-pressing processing 5min, Obtain the fibre reinforced composites.
Embodiment 2
Preparation method be the same as Example 1, different condition be foaming agent use alcoholysis degree for 90% lauryl sodium sulfate The ratio between net content of surfactant, polyethylene fibre and nano-cellulose fiber is 98:2, remaining condition is identical.
Embodiment 3
Preparation method be the same as Example 1, different condition is that foaming agent is lived using sodium sulfate of polyethenoxy ether of fatty alcohol surface Property agent, the ratio between the net content of polyethylene fibre and nano-cellulose fiber is 97:3, remaining condition is identical.
Embodiment 4
Preparation method be the same as Example 1, different condition is that foaming agent uses rosin soap surfactant, polyethylene fibre It is 96 with the ratio between the net content of nano-cellulose fiber:4, remaining condition is identical.
Embodiment 5
Preparation method be the same as Example 1, different condition is that foaming agent uses polyoxyethylene surfactant, polyethylene fibre It is 95 with the ratio between the net content of nano-cellulose fiber:5, remaining condition is identical.
Embodiment 6
Preparation method be the same as Example 1, different condition is that foaming agent uses polyvinyl alcohol+lauryl sodium sulfate mixture table The ratio between net content of face activating agent, polyethylene fibre and nano-cellulose fiber is 95:5, remaining condition is identical.
Nano-cellulose fiber enhancing composite property test data prepared by embodiment 1~6 is as shown in table 1.
Table 1
As can be seen from Table 1, the nano-cellulose fiber enhancing composite that prepared by the embodiment of the present invention 1~6 Thickness between 1.9~2.1mm, tensile strength between 39.6~48.0MPa, bending strength between 89.7~95.7MPa, Impact strength is in 14.7~20.6KJ m-2Between, water absorption rate between 0.1%~0.3%, resistivity 48000~53200 × 106Ω·cm.Property indices are superior to or maintained an equal level in commercial polyethylene plastic plate.
Embodiment 7
(1) polyvinyl alcohol surfactant (alcoholysis degree is 70%, and viscosity is 40mPas) plus a small amount of water are diluted, are made into Foaming agent solution A；Polyethylene fibre is diluted with water, slurry B is obtained；By glass fibre and water mixed diluting, slurry C is obtained； Tri- kinds of solution of A, B, C are blended in stock tank jointly, air is injected using gas injection device, obtain volume concentration of gas phase for 60%, Fiber total content is the foamed slurry that 2%, foam diameter is 50~400 μm；What wherein polyvinyl alcohol surfactant was added is net Content is the 2% of foamed slurry quality, and the ratio between net content of polyethylene fibre and glass fibre is 99:1.
(2) foamed slurry prepared is once manufactured paper with pulp shaping using oblique net paper machine, then spray water pressure be 2.0 × 105Eliminate lather collapse under the conditions of Pa, it is 45% then to dry to mass dryness fraction, obtains monolayer sheet；
(3) it is 200g/m by page quantification2, multiple monolayer sheets are combined, 175~185 DEG C of hot-pressing processing 5min, Obtain the fibre reinforced composites.
Embodiment 8
Preparation method be the same as Example 7, different condition be foaming agent use alcoholysis degree for 90% lauryl sodium sulfate The ratio between net content of surfactant, polyethylene fibre and glass fibre is 98:2, remaining condition is identical.
Embodiment 9
Preparation method be the same as Example 7, different condition is that foaming agent is lived using sodium sulfate of polyethenoxy ether of fatty alcohol surface Property agent, the ratio between the net content of polyethylene fibre and glass fibre is 97:3, remaining condition is identical.
Embodiment 10
Preparation method be the same as Example 7, different condition is that foaming agent uses rosin soap surfactant, polyethylene fibre It is 96 with the ratio between the net content of glass fibre:4, remaining condition is identical.
Embodiment 11
Preparation method be the same as Example 7, different condition is that foaming agent uses polyoxyethylene surfactant, polyethylene fibre It is 95 with the ratio between the net content of glass fibre:5, remaining condition is identical.
Embodiment 12
Preparation method be the same as Example 7, different condition is that foaming agent uses polyvinyl alcohol+lauryl sodium sulfate mixture table The ratio between net content of face activating agent, polyethylene fibre and glass fibre is 95:5, remaining condition is identical.
Glass fibre reinforced composion performance test data prepared by embodiment 7~12 is as shown in table 2.
Table 2
From table 2 it can be seen that the thickness of glass fibre reinforced composion prepared by the embodiment of the present invention 7~12 is 1.9 Between~2.1mm, tensile strength is between 30.5~35.9MPa, and bending strength is between 74.3~80.6MPa, impact strength In 8.8~9.6KJ m-2Between, water absorption rate is between 0.1%~0.9%, and resistivity is in 49000-53000 × 106Ω·cm。 Property indices are superior to or maintained an equal level in commercial polyethylene plastic plate.
Embodiment 13
(1) polyvinyl alcohol surfactant (alcoholysis degree is 90%, and viscosity is 48mPas) plus a small amount of water are diluted, are made into Foaming agent solution A；Polyethylene fibre is diluted with water, slurry B is obtained；By ceramic fibre and water mixed diluting, slurry C is obtained； Tri- kinds of solution of A, B, C are blended in stock tank jointly, air is injected using gas injection device, obtain volume concentration of gas phase for 70%, Fiber total content is the foamed slurry that 3%, foam diameter is 50~400 μm；What wherein polyvinyl alcohol surfactant was added is net Content is the 3% of foamed slurry quality, and the ratio between net content of polyethylene fibre and ceramic fibre is 99:1.
(2) foamed slurry prepared once being manufactured paper with pulp using the oblique net paper machine shown in Fig. 1, (foamed slurry is passed through successively for shaping The pulp distributor of oblique net paper machine, forming net and dehydration original paper are manufactured paper with pulp shaping), then pass through and contact squeezing defoaming device (its work original Reason figure is as shown in Figure 2), it is 1.4 × 10 in squeeze pressure P5Eliminate lather collapse under the conditions of Pa, then drying to mass dryness fraction is 50%, obtain monolayer sheet；
(3) it is 200g/m by page quantification2, multiple monolayer sheets are combined, in a mold 175~185 DEG C of hot pressing 5min (hot-pressing processing schematic flow sheet is as shown in figure 3, P represents hot pressing pressure) is handled, the fibre reinforced composites are obtained.
Embodiment 14
Preparation method be the same as Example 13, different condition be foaming agent use alcoholysis degree for 90% lauryl sodium sulfate The ratio between net content of surfactant, polyethylene fibre and ceramic fibre is 98:2, remaining condition is identical.
Embodiment 15
Preparation method be the same as Example 13, different condition is that foaming agent is lived using sodium sulfate of polyethenoxy ether of fatty alcohol surface Property agent, the ratio between the net content of polyethylene fibre and ceramic fibre is 97:3, remaining condition is identical.
Embodiment 16
Preparation method be the same as Example 13, different condition is that foaming agent uses rosin soap surfactant, polyethylene fiber The ratio between dimension and the net content of ceramic fibre are 96:4, remaining condition is identical.
Embodiment 17
Preparation method be the same as Example 13, different condition is that foaming agent uses polyoxyethylene surfactant, polyethylene fiber The ratio between dimension and the net content of ceramic fibre are 95:5, remaining condition is identical.
Embodiment 18
Preparation method be the same as Example 13, different condition is foaming agent using polyvinyl alcohol+lauryl sodium sulfate mixing The ratio between net content of surfactant, polyethylene fibre and ceramic fibre is 95:5, remaining condition is identical.
Ceramic fibre reinforced composite performance test data prepared by embodiment 13~18 is as shown in table 3.
Table 3
As can be seen from Table 3, the thickness of ceramic fibre reinforced composite prepared by the embodiment of the present invention 13~18 Between 1.9~2.1mm, tensile strength is between 35.1~38.8MPa, and bending strength is between 68.1~75.6MPa, impact Intensity is in 8.4~9.2KJ m-2Between, water absorption rate is between 0.4%~0.8%, and resistivity is 49500~58200 × 106 Ω·cm.Property indices are superior to or maintained an equal level in commercial polyethylene plastic plate.
Embodiment 19
(1) polyvinyl alcohol surfactant (alcoholysis degree is 80%, and viscosity is 45mPas) plus a small amount of water are diluted, are made into Foaming agent solution A；Polyethylene fibre is diluted with water, slurry B is obtained；By metallic fiber and water mixed diluting, slurry C is obtained； Tri- kinds of solution of A, B, C are blended in stock tank jointly, steeped using hydraulic impact device system, obtain volume concentration of gas phase for 80%, Fiber total content is the foamed slurry that 4%, foam diameter is 50~400 μm；What wherein polyvinyl alcohol surfactant was added is net Content is the 4% of foamed slurry quality, and the ratio between net content of polyethylene fibre and metallic fiber is 99:1.
(2) foamed slurry prepared is once manufactured paper with pulp shaping using oblique net paper machine, is then 10 in vacuum3Pa conditions Under vacuumize and eliminate lather collapse, it is 45% then to dry to mass dryness fraction, obtains monolayer sheet；
(3) it is 200g/m by page quantification2, multiple monolayer sheets are combined, 175~185 DEG C of hot-pressing processing 5min, Obtain the fibre reinforced composites.
Embodiment 20
Preparation method be the same as Example 19, different condition be foaming agent use alcoholysis degree for 95% lauryl sodium sulfate The ratio between net content of surfactant, polyethylene fibre and metallic fiber is 98:2, remaining condition is identical.
Embodiment 21
Preparation method be the same as Example 19, different condition is that foaming agent is lived using sodium sulfate of polyethenoxy ether of fatty alcohol surface Property agent, the ratio between the net content of polyethylene fibre and metallic fiber is 97:3, remaining condition is identical.
Embodiment 22
Preparation method be the same as Example 19, different condition is that foaming agent uses rosin soap surfactant, polyethylene fiber The ratio between dimension and the net content of metallic fiber are 96:4, remaining condition is identical.
Embodiment 23
Preparation method be the same as Example 19, different condition is that foaming agent uses polyoxyethylene surfactant, polyethylene fiber The ratio between dimension and the net content of metallic fiber are 95:5, remaining condition is identical.
Embodiment 24
Preparation method be the same as Example 19, different condition is foaming agent using polyvinyl alcohol+lauryl sodium sulfate mixing The ratio between net content of surfactant, polyethylene fibre and metallic fiber is 95:5, remaining condition is identical.
Metal fiber reinforced composite property test data prepared by embodiment 19~24 is as shown in table 4.
Table 4
As can be seen from Table 4, the thickness of metal fiber reinforced composite prepared by the embodiment of the present invention 19~24 Between 1.9~2.1mm, tensile strength is between 25.8~29.3MPa, and bending strength is between 69.8~75.6MPa, impact Intensity is in 7.0~7.8KJ m-2Between, water absorption rate is between 0.4%~0.7%, and resistivity is 0.33~58000 × 106Ω· cm.Property indices are superior to or maintained an equal level in commercial polyethylene plastic plate.
Embodiment 25
(1) polyvinyl alcohol surfactant (alcoholysis degree is 80%, and viscosity is 45mPas) plus a small amount of water are diluted, are made into Foaming agent solution A；Polyethylene fibre is diluted with water, slurry B is obtained；By carbon fiber and water mixed diluting, slurry C is obtained；Will Tri- kinds of solution of A, B, C are blended in stock tank jointly, are steeped using hydraulic impact device system, and it is 70%, fibre to obtain volume concentration of gas phase Dimension total content is the foamed slurry that 5%, foam diameter is 50~400 μm；What wherein polyvinyl alcohol surfactant was added contains only Measure as the 10% of foamed slurry quality, the ratio between net content of polyethylene fibre and carbon fiber is 99:1.
(2) foamed slurry prepared is once manufactured paper with pulp shaping using oblique net paper machine, is then 10 in vacuum4Pa conditions Under vacuumize and eliminate lather collapse, it is 45% then to dry to mass dryness fraction, obtains monolayer sheet；
(3) it is 200g/m by page quantification2, multiple monolayer sheets are combined, 175~185 DEG C of hot-pressing processing 5min, Obtain the fibre reinforced composites.
Embodiment 26
Preparation method be the same as Example 25, different condition be foaming agent use alcoholysis degree for 95% lauryl sodium sulfate The ratio between net content of surfactant, polyethylene fibre and carbon fiber is 98:2, remaining condition is identical.
Embodiment 27
Preparation method be the same as Example 25, different condition is that foaming agent is lived using sodium sulfate of polyethenoxy ether of fatty alcohol surface Property agent, the ratio between the net content of polyethylene fibre and carbon fiber is 97:3, remaining condition is identical.
Embodiment 28
Preparation method be the same as Example 25, different condition is that foaming agent uses rosin soap surfactant, polyethylene fiber The ratio between dimension and the net content of carbon fiber are 96:4, remaining condition is identical.
Embodiment 29
Preparation method be the same as Example 25, different condition is that foaming agent uses polyoxyethylene surfactant, polyethylene fiber The ratio between dimension and the net content of carbon fiber are 95:5, remaining condition is identical.
Embodiment 30
Preparation method be the same as Example 25, different condition is foaming agent using polyvinyl alcohol+lauryl sodium sulfate mixing The ratio between net content of surfactant, polyethylene fibre and carbon fiber is 95:5, remaining condition is identical.
Carbon fibre reinforced composite performance test data prepared by embodiment 25~30 is as shown in table 5.
Table 5
As can be seen from Table 5, the thickness of carbon fibre reinforced composite prepared by the embodiment of the present invention 25~30 exists Between 1.9~2.1mm, tensile strength is between 27.4~29.1MPa, and bending strength is between 64.5~66.3MPa, and impact is strong Degree is in 6.8~7.4KJ m-2Between, water absorption rate is between 0.3%~0.8%, and resistivity is 0.19~44000 × 106Ω· cm.Property indices are superior to or maintained an equal level in commercial polyethylene plastic plate.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (10)

1. a kind of method that foaming process prepares fibre reinforced composites, it is characterised in that including following preparation process：
Inject foaming agent into foaming vessel to mix with fibrous suspension, then using gas injection, impact or churned mechanically mode Mixed foaming, produces foamed slurry of the volume concentration of gas phase between 55%~80%, and shaping of manufacturing paper with pulp of surfing the Net is then true using taking out Empty, shower water or the mode of contact squeezing eliminate lather collapse, and individual layer paper is formed after drying, by certain grammes per square metre and Multiple individual layer paper are combined by thickness, are carried out hot pressing or compression molding, are obtained the fibre reinforced composites.
2. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： Described foaming agent is polyvinyl alcohol surfactant, lauryl sodium sulfate surfactant, AEO sulphur At least one in sour natrium surfactant, rosin soap surfactant, polyoxyethylene surfactant；The polyvinyl alcohol The alcoholysis degree of surfactant is 70%~90%, and viscosity is 40~48mPas；The lauryl sodium sulfate surface-active The alcoholysis degree of agent is 90%~95%.
3. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： The addition of the foaming agent is the 0.1%~10% of foamed slurry quality.
4. the method that a kind of foaming process according to any one of claims 1 to 3 prepares fibre reinforced composites, its It is characterised by：Described fibrous suspension includes enhancing phase fiber and matrix phase fiber；The enhancing phase fiber refers to glass At least one in fiber, carbon fiber, string, nano-cellulose fiber, ceramic fibre, metallic fiber, aramid fiber；Institute State matrix phase fiber refer to the double melting-point fibers of polyethylene fibre, polyethylene/polypropylene, it is polypropylene fibre, polyacrylonitrile fibre, poly- In terephthaldehyde's ethyl glycol ester fiber, polyvinyl chloride fibre, acid fiber by polylactic, poly fiber at least It is a kind of；It is (1~5) to strengthen phase fiber with the mass ratio of matrix phase fiber:(95~99).
5. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： Described gas injection refers to injection air, nitrogen or carbon dioxide.
6. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： The fiber total content of the foamed slurry is 0.01%~5wt.%, and foam diameter is 50~400 μm.
7. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： The scope of the vacuum vacuumized is 10-5~105Pa；The pressure of the shower water is 1.5 × 105~3 × 105Pa；It is described The squeeze pressure of contact squeezing is 1 × 105~2 × 105Pa。
8. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： It is 10%~80% that described drying, which refers to dry to the mass dryness fraction of paper,.
9. the method that a kind of foaming process according to claim 1 prepares fibre reinforced composites, it is characterised in that： It is described to refer to that grammes per square metre is 50~3000g/m by certain grammes per square metre and thickness2, thickness be 1~100mm；The hot pressing or molding Temperature is 130~200 DEG C, and the time is 0.5~30min.
10. a kind of fibre reinforced composites, it is characterised in that：It is prepared into by the method described in any one of claim 1~9 Arrive.
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* Cited by examiner, † Cited by third party
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CN112064401A (en) * 2020-09-02 2020-12-11 西北工业大学 Preparation method of high-porosity paper-based friction material
CN114717870A (en) * 2022-04-13 2022-07-08 华南理工大学 High-performance inorganic fiber preform and foam forming method and application thereof
US11414817B2 (en) 2020-02-17 2022-08-16 Shaanxi University Of Science And Technology Aramid paper coated with aramid nanofibers and a method of preparing the same
CN115536429A (en) * 2022-09-29 2022-12-30 中南林业科技大学 Preparation method of wood reinforced inorganic composite material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572644A (en) * 2012-07-24 2014-02-12 苏州维艾普新材料有限公司 Multi-component fibre hybrid composite material felt and preparation method thereof
WO2015173474A1 (en) * 2014-05-15 2015-11-19 Metsä Board Oyj Method of producing boards
CN106084279A (en) * 2016-06-06 2016-11-09 陕西科技大学 A kind of preparation method of cellulose base biodegradable expanded material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572644A (en) * 2012-07-24 2014-02-12 苏州维艾普新材料有限公司 Multi-component fibre hybrid composite material felt and preparation method thereof
WO2015173474A1 (en) * 2014-05-15 2015-11-19 Metsä Board Oyj Method of producing boards
CN106084279A (en) * 2016-06-06 2016-11-09 陕西科技大学 A kind of preparation method of cellulose base biodegradable expanded material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11414817B2 (en) 2020-02-17 2022-08-16 Shaanxi University Of Science And Technology Aramid paper coated with aramid nanofibers and a method of preparing the same
CN112064401A (en) * 2020-09-02 2020-12-11 西北工业大学 Preparation method of high-porosity paper-based friction material
CN114717870A (en) * 2022-04-13 2022-07-08 华南理工大学 High-performance inorganic fiber preform and foam forming method and application thereof
CN115536429A (en) * 2022-09-29 2022-12-30 中南林业科技大学 Preparation method of wood reinforced inorganic composite material

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