CN1570271A - Carbon fiber and aramid fiber synthesized paper and wet method manufacture - Google Patents
Carbon fiber and aramid fiber synthesized paper and wet method manufacture Download PDFInfo
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- CN1570271A CN1570271A CN 200410037774 CN200410037774A CN1570271A CN 1570271 A CN1570271 A CN 1570271A CN 200410037774 CN200410037774 CN 200410037774 CN 200410037774 A CN200410037774 A CN 200410037774A CN 1570271 A CN1570271 A CN 1570271A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 69
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 69
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229920006231 aramid fiber Polymers 0.000 title claims description 51
- 238000004519 manufacturing process Methods 0.000 title description 13
- 238000000034 method Methods 0.000 title description 8
- 239000000835 fiber Substances 0.000 claims abstract description 137
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 55
- 238000002360 preparation method Methods 0.000 claims abstract description 25
- 230000015572 biosynthetic process Effects 0.000 claims abstract 3
- -1 poly-phenylene isophthaloyl amide Chemical class 0.000 claims description 29
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 26
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 26
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 21
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 21
- 238000005098 hot rolling Methods 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 244000085692 Cordia alliodora Species 0.000 claims description 8
- 235000004258 Cordia alliodora Nutrition 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 claims description 2
- 239000010426 asphalt Substances 0.000 claims description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000012209 synthetic fiber Substances 0.000 abstract description 5
- 239000004753 textile Substances 0.000 abstract 3
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- 241000902900 cellular organisms Species 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 12
- 239000007822 coupling agent Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 210000001161 mammalian embryo Anatomy 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 206010016256 fatigue Diseases 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- NAYYNDKKHOIIOD-UHFFFAOYSA-N phthalamide Chemical compound NC(=O)C1=CC=CC=C1C(N)=O NAYYNDKKHOIIOD-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
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- 230000005662 electromechanics Effects 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229940018564 m-phenylenediamine Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000012696 Interfacial polycondensation Methods 0.000 description 1
- 229920000784 Nomex Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- HIKUCVORZZXYNF-UHFFFAOYSA-L calcium;1-methylpyrrolidin-2-one;dichloride Chemical compound Cl[Ca]Cl.CN1CCCC1=O HIKUCVORZZXYNF-UHFFFAOYSA-L 0.000 description 1
- VNWKTOKETHGBQD-AKLPVKDBSA-N carbane Chemical compound [15CH4] VNWKTOKETHGBQD-AKLPVKDBSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 230000008602 contraction Effects 0.000 description 1
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- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 235000021197 fiber intake Nutrition 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
This invention belongs to synthetic fiber domain, specially involves one kind carbon fiber and fragrant black silk ribbon textile fiber as the structure textile fiber, auxiliary synthesis tissue paper which makes by the cementation textile fiber. This synthetic fiber has the light quality, soft, high strength, high compared to module, thermostable, bears wearily, the anti- chemistry corrodes, the good electrical conductivity and the thermal conductivity, the low heat expansion coefficient, biota the solubility is good and so on the outstanding characteristic, may widely use in mechanical and electrical, aviation, astronautics contour area of technology; This invention has also provided this synthesis tissue paper aqueous preparation method
Description
Technical field
The invention belongs to the synthetic fibre paper field, particularly a kind ofly be structural fibers, be aided with the synthetic fibre paper that bondable fibers is made with carbon fiber and aramid fiber.
The invention still further relates to the wet preparation method of this kind synthetic fibre paper.
Background technology
In recent years, synthetic fibre paper is because of having intensity height than common plant fiber paper, dimensionally stable, being difficult for advantage such as aging, chemical-resistant and having obtained extensive concern both domestic and external.Wherein, aramid fiber paper and carbon fiber paper are two kinds of important synthetic fibre papers.Application number is that disclosing a kind of in 99114635.2 the Chinese patent is the synthetic fibre paper that raw material is made with the Nomex synthetic fiber, it has advantages such as certain high temperature resistant, high strength, low distortion, but its deficiency is: because of its good insulation performance performance, not heat conduction of paper, non-conductive, fire resistance is poor, the while is anti-oxidant and fatigue durability does not also satisfy some specific uses; And application number is that to disclose with the polyacrylonitrile-based carbon fibre in 94115515.3 the Chinese patent be the synthetic fibre paper of raw material, advantage such as it has stable conductivity, intensity height, can circumnutate, proportion is little, but its deficiency is: because of containing a large amount of strings, have shortcomings such as not anti-water, non-refractory, resistance to oxidation, corrosion-resistant, fatigability difference.From the moulding angle of manufacturing paper with pulp, this kind synthetic fibre paper be by interfibrous bond energy in conjunction with and produce the intensity of paper, and the bond energy of string can not with carbon fiber generation effect, so the intensity of paper is low.Therefore, be widely used in high-tech sectors such as electromechanics, Aeronautics and Astronautics, just need a kind of existing aramid fiber paper and carbon fiber paper that the superior synthetic fibre paper of combination property replaces prior art that have in order to make synthetic fibre paper.And need improved pulping method, and can obtain the high synthetic fibre paper of intensity.
The present invention combines aramid fiber and carbon fiber advantage separately, has prepared a kind ofly with carbon fiber and two kinds of fibers of aramid fiber all-in-one-piece synthetic fibre paper of manufacturing paper with pulp, and makes its combination property be better than existing single carbon fiber paper and single aramid fiber paper.At present, this synthetic fibre paper yet there are no report at home and abroad.
Summary of the invention
One object of the present invention be to provide a kind of with carbon fiber and aramid fiber be structural fibers, the synthetic fibre paper made with the bonding typing of bondable fibers, it has the excellent comprehensive performance, i.e. You Yi heat resistance, high strength, fatigue performance, low distortion, fire resistant flame retardant performance, chemical resistance, and have advantages such as conduction, heat conductivility excellence, proportion are little concurrently.
Another object of the present invention is to provide the preparation method of this kind synthetic fibre paper, this preparation method can realize carbon fiber and the aramid fiber binary synergy in synthetic fibre paper.
According to one aspect of the present invention, the present invention discloses a kind of synthetic fibre paper, contain: structural fibers 40～90 weight portions and bondable fibers 10～60 weight portions, preferably contain structural fibers 40～60 weight portions and bondable fibers 40～60 weight portions, wherein, described structural fibers contains the aramid fiber of the carbon fiber and 15～95% (weight) of 5～85% (weight).
The carbon fiber that the present invention uses, be adopt the charing of macromolecule organic fiber precursor, precursor pre-oxidation, preoxided thread or further graphitization, carbon fiber four processes such as post processing and get.In the present invention, can use various commercially available carbon fibers, for example polyacrylonitrile (PAN) base carbon fibre, asphalt base carbon fiber or viscose-based carbon fiber etc., it is 1～8mm that described carbon fiber adopts length, carbon fiber has advantages such as high specific strength, high ratio modulus, corrosion-resistant, high temperature resistant, antifatigue, heat conduction, parent's electricity, lightweight, has listed properties of carbon index of the present invention in the table 1.Preferred carbon fiber is the PAN base carbon fibre.
The aramid fiber that the present invention uses comprise polyparaphenylene's terephthalamide (Fanglun l414) and pulp goods thereof or poly-between benzenedicarboxamide (aramid fiber 1313) and pulp goods thereof between penylene.Polyparaphenylene's terephthalamide (Fanglun l414) and poly-between between penylene benzenedicarboxamide (aramid fiber 1313) fiber be respectively to be raw material with paraphthaloyl chloride, p-phenylenediamine (PPD) and m-phthaloyl chloride, m-phenylene diamine (MPD), make solvent with NMP-CaCl2, through the method for cryogenic fluid polycondensation and interfacial polycondensation to resin through wet method reel off raw silk from cocoons, dry, prescind and obtain.Fanglun slurry cake then be with above-mentioned Fanglun l414, two kinds of long filaments of aramid fiber 1313 after cutting off, in water, disperse to carry out mechanical beating and grinding, fiber is torn and fibrillation, the surface produces fento shape filoplume, dehydrates at last.It is that 1～2d (dawn), length are the Fanglun l414 of 0.05～10mm that described Fanglun l414 adopts fiber number, it is that 1～2d, length are the aramid fiber 1313 of 0.05～10mm that described aramid fiber 1313 adopts fiber number, these two kinds of fibers have performances such as high strength, high-modulus, light weight, high temperature resistant, endurance, resistance to chemical attack respectively, have listed the performance indications of Fanglun l414 of the present invention and aramid fiber 1313 in the table 2.
Table 1
The project indicator
Fiber number 396Tex 800Tex
Tensile strength 〉=3.5Gpa
Tensile modulus 220～240Gpa
Elongation at break 〉=1.5%
Decomposition temperature 〉=540 ℃ (vacuum 〉=2800 ℃)
Table 2
Project Fanglun l414 aramid fiber 1313
Intensity Gpa 2.8 3.5
Percentage elongation % 2.5 20～50
Modulus Gpa 124 7.5～10.9
Decomposition temperature ℃ 500 400～420
Bondable fibers of the present invention is polyterephthalamide glycol ester fiber or polyphenylene sulfide fibre.Wherein, polyterephthalamide glycol ester fiber has higher mechanical strength, and the softening point of the polyterephthalamide glycol ester fiber that the present invention uses is that 238～240 ℃, fusing point are that 255～260 ℃, length are 1～6mm; Polyphenylene sulfide fibre has that mechanical strength is good, high tenacity, performance such as corrosion-resistant, fire-retardant, and the softening point of the polyphenylene sulfide fibre that the present invention uses is that 260 ℃, fusing point are that 280 ℃, length are 1～6mm.Bondable fibers of the present invention accounts for synthetic paper embryo total weight of fibers 10～65% weight, preferred 30～60% weight.
Can further show to be coated with Cypres in the synthetic fibre paper of the present invention, preferred Cypres is the KVL resin, Cypres is as the surperficial dip-coating of paper, paper after the hot rolling is carried out top sizing, to reach some special effect and the specific use of paper, for example gain in strength and improve the surface characteristic of paper.
In order to improve the adhesive property between structural fibers and the bondable fibers, can also further comprise coupling agent in the synthetic fibre paper of the present invention, preferred coupling agent is a KH-5 type coupling agent.
According to another aspect of the present invention, the preparation method of this synthetic fibre paper is also disclosed, comprise batching slurrying, the shaping of manufacturing paper with pulp, dehydration, dry, preheating, the step of high pressure hot rolling and side cut shaping, in batching slurrying step, earlier carbon fiber is discongested in the waterpower fluffer by 0.003～0.1% weight concentration, make a slurries A, then aramid fiber and part aramid fiber pulp and bondable fibers are mixed and in the waterpower fluffer, discongest by 0.005～0.1% weight concentration, make another slurries B, form the paper making pulp that can be added into the papermaking flow box in joining stock tank thereby at last two kinds of slurries are mixed.
Because carbon fiber, there are not enough adhesions between the aramid fiber, the page that forms can not resemble string and make the enough intensity of page generation by interfibrous hydrogen bonded fully, therefore synthetic fiber can only lean on the fusion of self or increase the bond strength of paper by other adhesive, aramid fiber does not have tangible fusing point, must add the lower fiber of certain proportion fusing point as bonding agent, work as carbon fiber, the roll compacting the time of aramid fiber synthetic paper embryo near the bondable fibers melting temperature, the carbon fiber that the bondable fibers of softening fusion will not melt under pressure, aramid fiber is bonded together, and reaches the purpose of typing.
The present invention adopts polyterephthalamide glycol ester fiber (polyester fiber) or polyphenylene sulfide fibre to make the bondable fibers purpose, because of polyterephthalamide glycol ester fiber and polyphenylene sulfide fibre have higher mechanical strength, the its preparation method difference, polyterephthalamide glycol ester fiber and polyphenylene sulfide fibre kind are many, can require to select for use different polyterephthalamide glycol ester fiber or polyphenylene sulfide fibre at the serviceability temperature of different carbon fibers, aramid fiber synthetic paper.Utilize the characteristic of polyterephthalamide glycol ester fiber and polyphenylene sulfide fibre melted by heating, under its fusing point, preferably carbon fiber, aramid fiber are bonded together, formed the initial strength of carbon fiber aramid fiber synthetic paper.
Be subjected to carbon fiber, aramid fiber synthetic paper intensity after the hot rolling relevant with polyterephthalamide glycol ester fiber or polyphenylene sulfide fibre addition.In general increase with polyterephthalamide glycol ester fiber or polyphenylene sulfide fibre addition, synthetic fibre paper intensity improves, but too high addition can cause some intensity index of paper to descend again, such as tearing strength.Wherein the excessive addition of polyterephthalamide glycol ester fiber also can cause synthetic paper contraction distortion aggravation.The short chopping of polyterephthalamide glycol ester fiber and polyphenylene sulfide fibre is easy to use, can be according to the concrete condition of producing, and slurrying or mixed pulp all can satisfy technological requirement separately.
For making carbon fiber and bondable fibers that adhesive strength preferably be arranged, in described batching slurrying step, before preparation carbon fiber slurries, can carry out surface treatment with coupling agent to carbon fiber earlier, described coupling agent is a KH-5 type coupling agent.
In the preparation method of synthetic fibre paper of the present invention, because of the hydrophobicity of carbon fiber, aramid fiber and bondable fibers, extremely difficult dispersion the in water.In order to promote the dispersion of above-mentioned fiber in water, the anti flocculant that can in described paper-making pulping, add 1～10 weight portion, increase the resistance of motion of fiber in slurries, the winding, the wadding that delay fiber are poly-, the suspended dispersed of fiber in slurries is improved, thereby reaches the purpose that improves synthetic fibre paper evenness.The used anti flocculant of the present invention is a polyethylene glycol oxide.Described anti flocculant uses separately, looks model, specification, the paper machine type of synthetic fiber slurry viscosity and paper and adjusts consumption.
In the production method of synthetic fibre paper of the present invention, at carbon fiber aramid fiber synthetic paper tensile strength preferably should be arranged, percentage elongation and tightness, higher tearing strength and limit tearing strength are arranged again, the characteristics that the best evenness of manufacturing paper with pulp will be arranged simultaneously, for the contradiction that solves tearability and the evenness of manufacturing paper with pulp requires fibre length, the present invention is a paper embryo skeleton with carbon fiber and part aramid fiber (than long fiber), ginseng is joined part Fanglun slurry cake (than staple fibre), to be filled in than staple fibre than between the long bone frame fiber, learn from other's strong points to offset one's weaknesses, fiber interweaving is more even, improves the evenness of manufacturing paper with pulp of synthetic fibre paper embryo, and then reaches the purpose that improves paper strength.Described aramid fiber pulp be by with the long filament of aramid fiber after cutting off, in water, disperse to carry out mechanical beating and grinding, fiber is torn and fibrillation, the surface produces fento shape filoplume, dehydrates at last to make.
In the preparation method of synthetic fibre paper of the present invention,, adopt the cylinder mould machine former with conventional paper technology.Cylinder mould machine flow box after improvement is fit to manufacturing paper with pulp of carbon fiber aramid fiber synthetic paper more.The described forming step of manufacturing paper with pulp can adopt two garden nets or the single garden net forming technology of manufacturing paper with pulp.
Described drying steps adopts drying tunnel formula drying device or many drying cylinders formula drying device, and the former dried page is loose, and the dried page of the latter is tightr.Drying tunnel formula drying device divides many warm areas, the l Water Paper page or leaf moves in drying tunnel by conveyer belt, arrive the posterior segment of drying tunnel, moisture in the page can all exclude, steam is discharged through the dehumidifier blower fan, and at the latter end of drying tunnel, temperature can reach the melt temperature of bondable fibers in the drying tunnel, page is through hot mill rolling subsequently, control hot rolling linear pressure 100～200kg/cm, the roller surface temperature is 130～200 ℃, and rolling speed is 3～30m/min, and the temperature of high pressure hot rolling is decided on the type of bondable fibers, when described bondable fibers is polyterephthalamide glycol ester fiber, hot-rolled temperature is 255～260 ℃ in described high pressure hot-rolled step, and described bondable fibers is when being polyphenylene sulfide fibre, and hot-rolled temperature is about 280 ℃ in described high pressure hot-rolled step.
If necessary, but also rolling of the page behind the high temperature drying tunnel for the synthetic paper hot rolling of two-layer or multilayered unstretched hot rolling together, is made higher quantitative synthetic fibre paper.Paper after the hot rolling can make the density of paper, the surface characteristic of paper, the deflection of paper reach gratifying effect through the further integer of calender as required.
After described high pressure hot-rolled step, can carry out top sizing with the Cypres of 1～10 weight portion paper after to hot rolling and handle, to reach some special effect and the specific use of paper, described Cypres is the KVL resin.
Excellent specific properties such as synthetic fibre paper of the present invention has that lightweight, softness, height ratio are strong, height ratio mould, high temperature resistant, endurance, resist chemical, good electrical conductivity and thermal conductivity, low thermal coefficient of expansion, Bc are good can be widely used in high-tech sectors such as electromechanics, Aeronautics and Astronautics.
Through special wet-formed, the high temperature rolling and molding is made paper shape material to preparation method of the present invention, adopts different temperature to carry out rolling and molding at different bondable fibers, with the good synthetic fibre paper of obtained performance with carbon fiber and aramid fiber.The adding of anti flocculant can fully disperse fiber in the technical process; Join than long aramid fiber and than the ginseng of short Fanglun slurry cake, can solve the synthetic fibre paper tearability and the contradiction of evenness of manufacturing paper with pulp preferably, improved the intensity of page the fibre length requirement; The adding of coupling agent has increased the adhesive strength of carbon fiber and bondable fibers; The process that is arranged so that the high pressure hot rolling of preheating program is carried out better simultaneously.In addition, by the synthetic fibre paper that obtains is carried out the processing of Cypres, can improve the intensity and the surface characteristic of paper.
More than be to general description the of the present invention, will be further explained claim of the present invention by the specific embodiment below.
The specific embodiment
When the paper performance of manufacturing paper with pulp out detects, use following detection method in to embodiment:
Quantitative GB/T451.3-2000
Thickness G B/T451.3-2000
Tightness GB/T451.3-2000
Tensile strength GB/T453-2000
Percentage elongation GB/T453-2000
Tearing strength GB/T455.1-2000
Raw material sources:
Carbon fiber is the PAN base carbon fibre, is produced by triumphant industry and trade Co., Ltd in the Lanzhou;
The Fanglun l414 fiber is produced by Japanese Supreme Being people company;
Polyterephthalamide glycol ester fiber is produced by Sichuan polyester factory;
Between poly-between penylene benzenedicarboxamide (aramid fiber 1313) newly can color gorgeous company produce by Guangdong;
Polyphenylene sulfide fibre is produced by Sichuan Hua Tuo company;
KVL resin (high-temperature-resistant epoxy resin) is produced by Chengdu morning twilight chemical research institute;
Other materials is the commercially available prod.
[embodiment 1]
Prepare present embodiment 1 synthetic fibre paper in following ratio:
Carbon fiber (2～4mm) 5 weight portions (to call " part " in the following text)
(5～6mm) 55 parts of Fanglun l414 fibers
(5～6mm) 40 parts of polyterephthalamide glycol ester fibers
The carbon fiber of above-mentioned content discongested in the waterpower fluffer by 0.005% weight concentration make paper pulp A, above-mentioned content Fanglun l414 fiber (containing the part pulp) and polyterephthalamide glycol ester fiber discongested in the waterpower fluffer by 0.008% weight concentration make paper pulp B, after then slurries A and slurries B being mixed in dosing chamber, thereby form the paper making pulp that can be added into the papermaking flow box, in slurry-stablizing case, add 5 parts polyethylene glycol oxide.Regulate slurries online pressure head through slurry-stablizing case, slurries are evenly distributed on the paper making forming net (two gardens net) in head box, unnecessary slurries through overflow to white water chest.When slurries when forming net moves, by the effect of couch roll, water leaches from paper pulp, the l Water Paper page or leaf leaves the rotary screen cage wire side, the l Water Paper page or leaf is further sloughed moisture through vacuum tank to wet pressing on woollen blanket, enter Dryer Section of Paper Machine.Page is through the hot-rolling mill single hot-roll forming subsequently, and control hot rolling linear pressure is 150kg/cm, and the roller surface temperature is 160～180 ℃, rolls fast 20m/min, in 255～260 ℃ of scopes of control hot-rolled temperature.Paper after the hot rolling makes the density of paper, the surface characteristic of paper, the deflection of paper reach gratifying effect through the further integer of calender.What obtain the results are shown in Table 3:
Table 3
Menu bit test result
Quantitative g/m
268.1
Thickness mm 0.112
Tightness g/m
30.608
Tensile strength KN/m MD 6.9
Percentage elongation % MD 2.3
Tearing strength mN CD 1248
[embodiment 2]
Prepare present embodiment 2 synthetic fibre papers by following weight portion:
(2～4mm) 5 parts on carbon fiber
(5～6mm) 55 parts of aramid fiber 1313 fibers
(5～6mm) 40 parts of polyterephthalamide glycol ester fibers
Present embodiment replaces the Fanglun l414 fiber with the aramid fiber 1313 fiber, and the preparation method of synthetic fibre paper is identical with embodiment 1, and what obtain the results are shown in Table 4:
Table 4
Menu bit test result
Quantitative g/m
264.6
Thickness mm 0.103
Tightness g/m
30.627
Tensile strength KN/m MD 6.1
Percentage elongation % MD 8.3
Tearing strength mN CD 937
[embodiment 3]
Prepare present embodiment 3 synthetic fibre papers by following weight portion:
(6～8mm) 25 parts on carbon fiber
(5～6mm) 35 parts of Fanglun l414 fibers
(5～6mm) 40 parts of polyterephthalamide glycol ester fibers
Present embodiment 3 is under the situation that does not change 40 parts of consumptions of polyterephthalamide glycol ester fiber, carbon fiber weight is increased to 25 parts, the Fanglun l414 fiber reduces to 35 parts, the synthetic fibre paper preparation method then is that single earlier net is shaped, batches, form individual layer synthetic fibre paper embryo, with this individual layer synthetic fibre paper embryo double-layer overlapping, all the other steps are undertaken by embodiment 1 identical preparation method then, and the test result that obtains sees Table 5:
Table 5
Menu bit test result
Quantitative g/m
243.3
Thickness mm 0.055
Tightness g/m
30.787
Tensile strength KN/m MD 2.68
Percentage elongation % MD 1.3
[embodiment 4]
Prepare present embodiment 4 synthetic fibre papers by following weight portion:
(6～8mm) 50 parts on carbon fiber
(5～6mm) 10 parts of Fanglun l414 fibers
(5～6mm) 40 parts of polyterephthalamide glycol ester fibers
At embodiment 3, the carbon fiber ratio is increased to 50 parts, the Fanglun l414 fiber reduces to 10 parts, under the constant situation of 40 parts of consumptions of polyterephthalamide glycol ester fiber, taking bilayer to close equally rolls, all the other steps are undertaken by embodiment 1 identical preparation method, and resulting test result sees Table 6:
Table 6
Menu bit test result
Quantitative g/m
250.0
Thickness mm 0.058
Tightness g/m
30.862
Tensile strength KN/m MD 0.8
Percentage elongation % MD 0.48
[embodiment 5]
Prepare present embodiment 5 synthetic fibre papers in following ratio:
(6～8mm) 25 parts on carbon fiber
(5～6mm) 35 parts of Fanglun l414 fibers
(5～6mm) 40 parts of polyterephthalamide glycol ester fibers
Present embodiment is on the basis of embodiment 3, in order to improve the adhesive property between carbon fiber and bondable fibers, with coupling agent the PAN base carbon fibre is carried out surface treatment earlier before preparation carbon fiber slurries, selects the KH-5 coupling agent here for use, and consumption is a trace.Carbon fiber after coupling agent treatment is made synthetic fibre paper by embodiment 3 identical preparation methods again, and resulting test result sees Table 7:
Table 7
Menu bit test result
Quantitative g/m
240.8
Thickness mm 0.049
Tightness g/m
30.832
Tensile strength KN/m MD 2.74
Percentage elongation % MD 1.1
[embodiment 6]
Prepare present embodiment 6 synthetic fibre papers by following weight portion:
(6～8mm) 25 parts on carbon fiber
(5～6mm) 35 parts of Fanglun l414 fibers
(5～6mm) 40 parts of polyterephthalamide glycol ester fibers
5 parts of Cypres KVL
The same preparation method who presses embodiment 3, described embodiment carry out top sizing to the paper after the hot rolling to handle, and selecting the KVL resin for use is Cypres.Synthetic paper behind top sizing all has on the surface characteristic of intensity and paper more significantly and improves.The test result that obtains sees Table 8:
Table 8
Menu bit test result
Quantitative g/m
252.1
Thickness mm 0.046
Tightness g/m
31.13
Tensile strength KN/m MD 3.01
Percentage elongation % MD 0.88
[embodiment 7]
Prepare present embodiment 7 synthetic fibre papers by following weight portion:
(6～8mm) 25 parts on carbon fiber
(5～6mm) 35 parts of Fanglun l414 fibers
(5～6mm) 40 parts of polyphenylene sulfide fibres
The difference of present embodiment is to select for use polyphenylene sulfide fibre to make bondable fibers.Because polyphenylene sulfide fibre has higher fusing point than polyterephthalamide glycol ester fiber, so synthetic fibre paper hot rolling under 280 ℃ of temperature is handled.All the other steps are undertaken by embodiment 3 identical technologies, and the test result that obtains sees Table 9:
Table 9
Menu bit test result
Quantitative g/m
244.5
Thickness mm 0.063
Tightness g/m
30.706
Tensile strength KN/m MD 2.01
Percentage elongation % MD 1.45
[embodiment 8]
Prepare present embodiment 8 synthetic fibre papers by following weight portion:
(6～8mm) 5 parts on carbon fiber
(5～6mm) 35 parts of Fanglun l414 fibers
(5～6mm) 60 parts of polyphenylene sulfide fibres
Described embodiment adopts 60 parts polyphenylene sulfide fibre, and the carbon fiber consumption is reduced to 5 parts, and all the other steps and embodiment 7 identical preparation methods carry out, and the test result that obtains sees Table 10:
Table 10
Menu bit test result
Quantitative g/m
257.1
Thickness mm 0.058
Tightness g/m
30.984
Tensile strength KN/m MD 2.8
Percentage elongation % MD 1.66
[embodiment 9]
Prepare present embodiment 9 synthetic fibre papers by following weight portion:
(6～8mm) 5 parts on carbon fiber
(5～6mm) 35 parts of Fanglun l414 fibers
(5～6mm) 60 parts of polyphenylene sulfides
8 parts of Cypres KVL resins
Equally the synthetic paper after embodiment 8 hot rollings is carried out top sizing with surface conditioning agent KVL resin, obtained present embodiment.Resulting test result sees Table 11:
Table 11
Menu bit test result
Quantitative g/m
254.7
Thickness mm 0.053
Tightness g/m
31.03
Tensile strength KN/m MD 3.51
Percentage elongation % MD 1.97
The invention is not restricted to above embodiment, can be according to the dependence of ginseng parameter such as mixing ratio, hot rolling technology and top sizing and synthetic fibre paper physical mechanical strength index, change proportioning and parameter, make the product type and the specification that can satisfy user's specific (special) requirements; Those skilled in the art can also make various changes and distortion, under the prerequisite that does not break away from spirit of the present invention, all fall within the scope of the invention.
Claims (13)
1. carbon fiber aramid fiber synthetic paper is characterized in that this synthetic fibre paper contains:
Structural fibers 40～90 weight portions
Bondable fibers 10～60 weight portions
Wherein, described structural fibers contains
The carbon fiber of 5～85% weight, and
The aramid fiber of 15～95% weight.
2. the described carbon fiber aramid fiber of claim 1 synthetic paper is characterized in that, this synthetic fibre paper contains
Structural fibers 40～60 weight portions
Bondable fibers 40～60 weight portions
Wherein, described structural fibers contains
The carbon fiber of 5～85% weight, and
The aramid fiber of 15～95% weight.
3. claim 1 or 2 described carbon fiber aramid fiber synthetic papers is characterized in that described carbon fiber is polyacrylonitrile-based carbon fibre, asphalt base carbon fiber or viscose-based carbon fiber, and length is 1～8mm.
4. the described carbon fiber aramid fiber of claim 3 synthetic paper is characterized in that described carbon fiber is a polyacrylonitrile-based carbon fibre.
5. claim 1 or 2 described carbon fiber aramid fiber synthetic papers, it is characterized in that, described aramid fiber is poly P phenylene terephthalamic fibre and pulp goods or poly-phenylene isophthaloyl amide fiber and pulp goods thereof, described poly P phenylene terephthalamic fibre fiber number is that 1～2d, length are 0.05～10mm, and described poly-phenylene isophthaloyl amide fiber fiber number is that 1～2d, length are 0.05～10mm.
6. claim 1 or 2 described carbon fiber aramid fiber synthetic papers is characterized in that described bondable fibers is polyterephthalamide glycol ester fiber or polyphenylene sulfide fibre.
7. the preparation method of a carbon fiber aramid fiber synthetic paper comprises the steps:
1) carbon fiber is discongested by 0.003～0.1% weight concentration, make slurries A;
2) aramid fiber and pulp thereof and bondable fibers are mixed and discongest, make slurries B by 0.005～0.1% weight concentration;
3) slurries A is mixed the formation paper making pulp with slurries B;
4) described paper making pulp is manufactured paper with pulp shaping;
5) dry and preheating;
6) the high temperature hot rolling obtains synthetic fibre paper.
8. the described preparation method of claim 7 is characterized in that, the hot rolling linear pressure is that 100～200kg/cm, roller surface temperature are 130～200 ℃, to roll speed be 3～30 meters/minute in the described step 6).
9. the described preparation method of claim 7 is characterized in that, described bondable fibers is a polyterephthalamide glycol ester fiber.
10. the described preparation method of claim 9 is characterized in that, in described step 6) in hot-rolled temperature be 255～260 ℃.
11. the described preparation method of claim 7 is characterized in that, described bondable fibers is a polyphenylene sulfide fibre.
12. the described preparation method of claim 11 is characterized in that, hot-rolled temperature is about 280 ℃ in described step 6).
13. the described preparation method of claim 7 is characterized in that, it further comprises with the paper of Cypres after to hot rolling and carries out the step that top sizing is handled.
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| CNB2004100377748A CN1298925C (en) | 2004-05-12 | 2004-05-12 | Carbon fiber and aramid fiber synthesized paper and wet method manufacture |
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| CNB2004100377748A CN1298925C (en) | 2004-05-12 | 2004-05-12 | Carbon fiber and aramid fiber synthesized paper and wet method manufacture |
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| JPS6429434A (en) * | 1987-07-27 | 1989-01-31 | Ask Corp | Fiber-containing pulp |
| JPH0251536A (en) * | 1988-08-16 | 1990-02-21 | Asahi Chem Ind Co Ltd | Fiber-reinforced thermoplastic resin sheet |
| US5230952A (en) * | 1991-06-17 | 1993-07-27 | Coltec Industries Inc. | Sintered composite friction material comprising fluorocarbon resin |
| JPH0569504A (en) * | 1991-09-11 | 1993-03-23 | Toyobo Co Ltd | Thermoplastic fiber reinforced composite formed body |
| CN1322615A (en) * | 2001-03-16 | 2001-11-21 | 广州市科宝有限公司 | Molding of short-staple reinforced composite material pulp |
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