CN102477637B - Polyphenylene sulfide fabric and purpose thereof - Google Patents
Polyphenylene sulfide fabric and purpose thereof Download PDFInfo
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- CN102477637B CN102477637B CN201010558031.0A CN201010558031A CN102477637B CN 102477637 B CN102477637 B CN 102477637B CN 201010558031 A CN201010558031 A CN 201010558031A CN 102477637 B CN102477637 B CN 102477637B
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- polyphenylene sulfide
- fabric
- filaments
- monofilament
- fineness
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Abstract
The invention provides a polyphenylene sulfide fabric and a purpose thereof. The fabric is made from polyphenylene sulfide monofilaments with fineness of 4-500 dtex; the average pore size of the fabric is 0.5-50 microns. The polyphenylene sulfide monofilaments are made by using a fiber splitting technology. The polyphenylene sulfide fabric provided by the invention has the advantages of light, thin and soft texture, high density and low pore size and can be applied to the preparation of precise high temperature filtering clothes.
Description
Technical field
The present invention relates to a kind of polyphenylene sulfide fabric, be specifically related to the top-weight fabric in the low aperture that a kind of polyphenylene sulfide filaments thinner by fineness is formed and uses thereof.
Background technology
At present, the existence form that on market, polyphenylene sulfide fibre goods are main has staple fibre, long filament, brachymemma fiber and processed goods woven fabric thereof, knitted fabric, nonwoven felt, paper products etc.The woven woven fabric of monofilament also has certain applications in paper grade (stock) net field.Polyphenylene sulfide fibre is mainly widely used in gas filtration field with the high temperature resistant of its excellence and chemical-resistance, wherein mainly comprise the fabric that staple fiber batt and staple fibre yarn and long filament are made into, and high-precision polyphenylene sulfide filaments fabric and its application in filtration art there is not been reported.
Reason is, the polyphenylene sulfide filaments of directly being produced by conventional monofilament spining technology existed in the market, and its fineness specification limit is about 500dtex, and the spinning engineering of the thin monofilament of below 500dtex is extremely difficult.Therefore, the monofilament that cannot realize utilizing fiber number less weaves lower aperture, high accuracy, the technology of cloister fabric.
Japanese Unexamined Patent Publication 2010-126838 discloses a kind of polyphenylene sulfide filaments, its manufacture method and industrial fabric.The good industrial fabric of surface smoothness that in the polyphenylene sulfide filaments and warp thread or weft yarn utilizing monofilament production technology to produce, at least one adopts this monofilament to produce is provided in this invention, be applicable to conveyer belt, paper grade (stock) net, the industrial use that filtering material etc. are general.This polyphenylene sulfide filaments is obtained by conventional monofilament production technology spinning, and monofilament fineness and the production efficiency of gained are all restricted, and can not be used for the fabric making lower aperture, so just can not for the preparation of precision high temperature filtration filter cloth.
Summary of the invention
The object of the present invention is to provide a kind of frivolous, soft, high density, the polyphenylene sulfide fabric in low aperture and uses thereof.
Technical solution of the present invention is as follows:
A kind of polyphenylene sulfide fabric, this fabric is by fineness made by the polyphenylene sulfide filaments of 4 ~ 500dtex, and the average pore size of this fabric is 0.5 ~ 50um; Described polyphenylene sulfide filaments utilizes point fine technology to obtain.
Above-mentioned fineness is the polyphenylene sulfide filaments of 4 ~ 500dtex is by being adopted by general polyphenylene sulfide multifilament hand to divide fibre or equipment to divide fine point fine technology obtained.The conventional method of current spinning polyphenylene sulfide filaments is directly spinned by single hole spinnerets, but the monofilament fineness that this method obtains is subject to the restriction of spinning process condition, and monofilament fineness great majority are at more than 500dtex, and production efficiency is low.Because the spinning process of multifilament can not only improve spinning speed, more production capacity can be promoted by the difference spinning hole number.The raising of spinning speed increases except production capacity, also can increase fibre strength.According to current multifilament production technology, in the polyphenylene sulfide multifilament of production, the fineness of individual thread carefully can reach 1.0dtex.
Very greatly, the monofilament that fineness is thinner, especially easily obtains low aperture, light and thin type fabric for the thickness of fabric and the monofilament fineness relation of composition fabric.But in the technique of the present invention, if the monofilament fineness of polyphenylene sulfide is less than 4dtex, then easy fracture of wire, causes a point fine process difficult; If monofilament fineness is greater than 500dtex, then coiling and molding is bad, and engineering is poor by property.The monofilament fineness applied in the present invention preferably 10 ~ 100dtex.
Polyphenylene sulfide filaments fabric of the present invention, its fabric average pore size is 0.5 ~ 50um.When weaving, the size of fabric pore size should require to adjust according to the purposes of this fabric, if when requiring to be less than 0.5um to the aperture of fabric, then Density is too high, because friction between monofilament frequently easily causes monofilament fracture of wire in weaving process, like this weave just more difficult; When fabric pore size is greater than 50um, easily cause each monofilament in fabric to cross rare and easy relative sliding between monofilament because of the density of fabric, fabric is shaping bad, and the situation of poor dimensional stability occurs.The average pore size of polyphenylene sulfide fabric of the present invention is preferably 5 ~ 30um.
Above-mentioned polyphenylene sulfide filaments utilizes point fine technology to obtain, that is the polyphenylene sulfide filaments that polyphenylene sulfide multifilament conventional method obtained divides fibre or equipment to divide fine technology obtained further by employing hand, this not only achieves the technology of obtained fine denier polyphenylene sulfide filaments.Meanwhile, for the PPS monofilament that direct fabrics mode is produced, production efficiency improves, and cost reduction rate increases.
The raw material that above-mentioned polyphenylene sulfide filaments adopts is the polyphenylene sulfide polymer of weight average molecular weight 30000 ~ 60000.If the polyphenylene sulfide polymer adopting molecular weight to be less than 30000 carries out melt spinning, the viscosity of melt spinning liquid is low, and spinning tension is low, in spinning process, easily fracture of wire occurs, cause spinning process significantly to worsen, and the mechanical property of the polyphenylene sulfide fibre obtained is poor; If the polyphenylene sulfide polymer adopting molecular weight to be greater than 60000 carries out spinning, because the viscosity of melt spinning liquid is high, need that there is special high voltage bearing spinning equipment, manufacturing equipment high cost can be caused.
Above-mentioned polyphenylene sulfide polymer is adopted to obtain polyphenylene sulfide multifilament by composite spinning, containing the polyphenylene sulfide filaments of 4 ~ 40 in the multifilament of gained.If monofilament radical is greater than 40, a point fine difficulty can be caused, be entangled with winding mutually; If monofilament radical is less than 4, production efficiency will be caused too low, and engineering is poor by property.Preferred monofilament radical is 6 ~ 20.
The tensile break strength of above-mentioned polyphenylene sulfide filaments is 2 ~ 10cN/dtex.If when the tensile break strength of monofilament is less than 2cN/dtex, filament strength is too low, bears incessantly point fine tension force, easily causes the generation of fracture of wire phenomenon; If the tensile break strength of monofilament is greater than 10cN/dtex, the higher polyphenylene sulfide polymer of weight average molecular weight is adopted to carry out spinning with regard to requiring, because the viscosity of melt spinning liquid is high, need that there is special high voltage bearing spinning equipment, manufacturing equipment high cost can be caused.Tensile break strength 4 ~ the 8cN/dtex of preferred polyphenylene sulfide filaments.
Polyphenylene sulfide fabric of the present invention have frivolous sense well, the advantage such as soft, density is high, aperture is low.Can be applicable to prepare precision high temperature filtration filter cloth, be applied particularly to the precision high temperature filtration filter cloth of gas or liquid, both can reach high efficiency filter, can reach a high temperature again the effect of filtering.
Detailed description of the invention
By following examples, the invention will be further described.But protection scope of the present invention is not limited to embodiment.
[fabric pore size]
According to ASTMF316-03 standard, Capillary Flow porometer is adopted to measure fabric pore size.Fabric sample is placed in sample room, soaks with the Si Weike silicone fluid (silwick silicone Fluid) that surface tension is 19.1dynes/cm.It is 2.54 cm that the bottom folder of sample room has diameter, and thickness is the porous metals dish plug-in unit of 3.175 mm, and the top folder of sample room has the hole of 3.175 mm diameters.The value of fabric pore size is the mean value of twice measurement.
[tensile break strength]
The assay method of fibrous fracture intensity and percentage elongation, namely on filament stretching-machine, is vertically clamped a fiber with lower clamp, is drawn the speed of stretching: 20 ± 1mm/min by JIS standard, stretch, record fracture strength and the elongation at break of every root fiber, often organize sample at least 35 times, average.
Embodiment 1
Adopt weight average molecular weight be 55000 polyphenylene sulfide polymer obtain by composite spinning the polyphenylene sulfide multifilament that monofilament radical is 10, fineness is 220dtex, then fine method is divided this multifilament by hand, 10 monofilament are wound up into respectively on batching apparatus and carry out a point fibre, make that fineness is 22dtex, TENSILE STRENGTH is the polyphenylene sulfide filaments of 4.8cN/dtex, the polyphenylene sulfide filaments of gained is weaved, is made into that average pore size is 15um, grammes per square metre is 55g/m
2fabric.The polyphenylene sulfide filaments fabric obtained is preparing the application in precision high temperature filtration filter cloth.
Embodiment 2
Adopt weight average molecular weight be 46000 polyphenylene sulfide polymer obtain by composite spinning the polyphenylene sulfide multifilament that monofilament radical is 14, fineness is 560dtex, then fine method is divided this multifilament by hand, 14 monofilament are wound up into respectively on taking-up equipment and carry out a point fibre, make that fineness is 40dtex, TENSILE STRENGTH is the polyphenylene sulfide filaments of 4.2cN/dtex, the polyphenylene sulfide filaments of gained is weaved, is made into that average pore size is 30um, grammes per square metre is 68 g/m
2fabric.The polyphenylene sulfide filaments fabric obtained is preparing the application in precision high temperature filtration filter cloth.
Embodiment 3
Adopt weight average molecular weight be 55000 polyphenylene sulfide polymer obtain by composite spinning the polyphenylene sulfide multifilament that monofilament radical is 6, fineness is 600dtex, then point fine equipment is utilized by this multifilament to carry out a point fibre, make that fineness is 100dtex, TENSILE STRENGTH is the polyphenylene sulfide filaments of 5.3cN/dtex, the polyphenylene sulfide filaments of gained is weaved, is made into that average pore size is 48um, grammes per square metre is 110g/m
2fabric.The polyphenylene sulfide filaments fabric obtained is preparing the application in precision high temperature filtration filter cloth.
Embodiment 4
Adopt weight average molecular weight be 55000 polyphenylene sulfide polymer obtain by composite spinning the polyphenylene sulfide multifilament that monofilament radical is 20, fineness is 156dtex, then point fine equipment is utilized by this multifilament to carry out a point fibre, make that fineness is 7.8dtex, TENSILE STRENGTH is the polyphenylene sulfide filaments of 5.6cN/dtex, the polyphenylene sulfide filaments of gained is weaved, is made into that average pore size is 1.2um, grammes per square metre is 41g/m
2fabric.The polyphenylene sulfide filaments fabric obtained is preparing the application in precision high temperature filtration filter cloth.
Comparative example 1
Adopt molecular weight be 55000 polyphenylene sulfide polymer by conventional monofilament production technology spinning monofilament fineness be 597dtex, TENSILE STRENGTH is the polyphenylene sulfide filaments of 4.5cN/dtex.Adopting this polyphenylene sulfide filaments to make fabric pore size is 130um, and fabric weight is the woven monofilament of 400 g/ ㎡.
Comparative example 2
Adopt molecular weight be 55000 polyphenylene sulfide polymer by conventional monofilament production technology spinning monofilament fineness be 700dtex, TENSILE STRENGTH is the polyphenylene sulfide filaments of 3.5cN/dtex.Adopting this polyphenylene sulfide filaments to make fabric pore size is 150um, and fabric weight is the woven monofilament of 600g/ ㎡.
Claims (4)
1. a polyphenylene sulfide fabric, is characterized in that: the polyphenylene sulfide filaments that this fabric is 4 ~ 500dtex by fineness is made, and the average pore size of this fabric is 0.5 ~ 50um; Described polyphenylene sulfide filaments utilizes point fine technology to obtain, described fineness is the polyphenylene sulfide filaments of 4 ~ 500dtex is by being adopted by polyphenylene sulfide multifilament hand to divide fibre or equipment to divide fine point fine technology obtained, containing the polyphenylene sulfide filaments of 4 ~ 40 in the multifilament of gained.
2. polyphenylene sulfide fabric according to claim 1, is characterized in that: the raw material that described polyphenylene sulfide filaments adopts is the polyphenylene sulfide polymer of weight average molecular weight 30000 ~ 60000.
3. polyphenylene sulfide fabric according to claim 1, is characterized in that: the tensile break strength of described polyphenylene sulfide filaments is 2 ~ 10cN/dtex.
4. a polyphenylene sulfide fabric as claimed in claim 1 is preparing the application in precision high temperature filtration filter cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010558031.0A CN102477637B (en) | 2010-11-25 | 2010-11-25 | Polyphenylene sulfide fabric and purpose thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010558031.0A CN102477637B (en) | 2010-11-25 | 2010-11-25 | Polyphenylene sulfide fabric and purpose thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102477637A CN102477637A (en) | 2012-05-30 |
| CN102477637B true CN102477637B (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010558031.0A Expired - Fee Related CN102477637B (en) | 2010-11-25 | 2010-11-25 | Polyphenylene sulfide fabric and purpose thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938337A (en) * | 2013-01-18 | 2014-07-23 | 东丽纤维研究所（中国）有限公司 | Diaphragm cloth for water electrolyser and method for producing diaphragm cloth |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0274613A (en) * | 1988-09-07 | 1990-03-14 | Kanebo Ltd | Splittable conjugate fiber |
| JP3730351B2 (en) * | 1997-03-04 | 2006-01-05 | 東レ株式会社 | Polyphenylene sulfide fiber, monofilament and industrial fabric |
| CN101530696A (en) * | 2008-03-12 | 2009-09-16 | 东丽纤维研究所（中国）有限公司 | Filtering material used for removing dust by combing electrical bag and application thereof |
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- 2010-11-25 CN CN201010558031.0A patent/CN102477637B/en not_active Expired - Fee Related
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| CN102477637A (en) | 2012-05-30 |
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Effective date of registration: 20180328 Address after: Japan Tokyo central Nihonbashi Muromachi 1-1-2 Patentee after: TORAY INDUSTRIES, Inc. Address before: 226009 Nantong Province Economic and Technological Development Zone, the New South Road, No. 58, No. Patentee before: TORAY FIBERS & TEXTILES RESEARCH LABORATORIES (CHINA) Co.,Ltd. |
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