CN101187074A - Polyphenylene sulfide composite short fibre one-step method complete equipment and production method - Google Patents
Polyphenylene sulfide composite short fibre one-step method complete equipment and production method Download PDFInfo
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- CN101187074A CN101187074A CNA2007100774394A CN200710077439A CN101187074A CN 101187074 A CN101187074 A CN 101187074A CN A2007100774394 A CNA2007100774394 A CN A2007100774394A CN 200710077439 A CN200710077439 A CN 200710077439A CN 101187074 A CN101187074 A CN 101187074A
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Abstract
The invention relates to a complete plant of an one-step method of a polyphenylene sulfide compound short fiber and process for preparation, the polyphenylene sulfide compound short fiber takes linear polyphenylene sulfide as a cortex, and polyethylene glycol terephthalate or polyethylene naphthalene or polycaprolactam or nylon 66 are used as a skin-core structure of the cortex. The complete plant of the one-step method of the polyphenylene sulfide compound short fiber and the process for preparation are used to produce the polyphenylene sulfide compound short fiber, the complete plant and the process for preparation comprise a compound spinning multi-channel drafting setting joint machine and the process for preparing polyphenylene sulfide compound spinning. The polyphenylene sulfide compound short fiber is cheap and good, compared with one-component polyphenylene sulfide short fiber, the cost of raw materials is capable of being reduced by 30-40 percent, and the fiber which is used as a filter material is capable of being widely popularized and applicated for an environmental protection industry.
Description
Technical field
The invention belongs to the technical field of special chemical fiber, particularly polyphenylene sulfide composite short fibre one-step method complete set of equipments and production method.
Background technology
Polyphenylene sulfide (English name Polyphenylene Sulfide, abbreviation PPS) fiber is at first succeeded in developing by U.S.'s Philips (Philip) oil company.The said firm developed the PPS resin of fibre-grade in 1979 in PPS resin suitability for industrialized production in 1973, the industrialization of nineteen eighty-three PPS staple fibre.Because polyphenylene sulfide fibre has good serviceability, Japanese Japan is spun, east is beautiful, Supreme Being people and Bayer A.G also develop and produce polyphenylene sulfide fibre in succession.
Polyphenylene sulfide can be made into long filament and staple fibre, because textile processibility energy and good chemical resistance, heat endurance, heat-resisting quantity and anti-flammability are preferably arranged, in environmental protection, flue and fields such as chemical industry high temperature filtration and Aero-Space, have widely and use, as steam power plant, coal-burning boiler, waste incineration, cement plant high-temperature flue filter bag; Corrosion-resistant filter cloth in the chemical industry; Dry zone in paper industry and the electrical industry, Nomex; The special cable cladding; Flame-retardant textile in the aerospace industry etc.
Known two step method short fiber production process and equipment are all adopted in the production of polyphony thioether short fiber in the past, to be the spinning technique process fall after being shaped under 500～1000m/min spinning speed bucket, and then some barrels tow boundling again through drawing-off, curl, processes such as typing, cut-out and packing finish the highest 200m/min that is no more than of drafting forming speed of this last handling process.Two step method production equipment and production method have that equipment is huge, floor space is many, energy consumption is big, processing cost is high, efficient is low, and the polyphony thioether short fiber quality homogeneity of producing is poor and because the PPS section costs an arm and a leg, defective such as be difficult to apply.
Summary of the invention
Problem to be solved by this invention provides a kind of polyphony thioether short fiber one-step method complete set of equipments and production method, to remedy the deficiencies in the prior art or defective.Produce polyphenylene sulfide composite short fibre with composite short fiber one-step method complete set of equipments of the present invention and production method, stable production process, manageability, row yielding height, cost is low, efficient is high and good product quality.
Polyphenylene sulfide composite short fibre one-step method complete set of equipments of the present invention comprises composite spinning former and post processing equipment.Wherein said composite spinning former is blown, oiled by twin (double) screw extruder, twinfilter, spinning manifold, core-skin composite spinneret, slow cooling, ring and guide wire apparatus etc. is formed: wherein said post processing equipment then is made up of five groups of drawing roller, three roller godet rollers, crimping machine, cutting machine and baling press etc.
A component polyphenylene sulfide slice of the present invention is a kind of polymer of linear structure,
Construction unit content 〉=70%mol/mol, best 〉=90%mol/mol.Its melt index (MFR) should be 20～600g/10min, is preferably 30～300g/10min.MFR is excessive, the fiberizing difficulty, and MFR is low excessively, melt extrudes difficulty, is difficult to processing.
The B component that the present invention adopts is dried PET or PEN section, and moisture content is controlled at≤30PPM usually, perhaps adopts PA6 or PA66 to do section, and moisture content is controlled at≤300PPM usually.
Spinneret orifice diameter of the present invention is at 0.1～1.0mm.Because polyphenylene sulfide belongs to the high-elasticity thermoplastic material, spinneret orifice draw ratio L/D is 3.0～10.0 comparatively suitable, and preferably the aperture is at 0.3～0.6mm, and L/D is 3.0～8.0.
At first by a slow cooling district, mainly be made up of heater by this zone after spinneret orifice is extruded for polyphenylene sulfide core-skin composite short fiber of the present invention, and its mode of heating of this heater mainly is electrical heating and biphenyl heating; Its profile for operation ease, but can be made into the form of folding for the insulation cartridge type.Its position is 1～30cm place below spinnerets, is preferably in 5～10cm place, and the length of this buffer unit is 10～50cm, is preferably in 20～40cm, and the temperature in slow cooling district is controlled at 190～300 ℃, preferably is controlled at 200～280 ℃.
Polyphenylene sulfide core-skin composite short fiber spinning solidified forming process of the present invention is for entering earlier solidified forming in the ring blowing device behind the slow cooling district, wind-warm syndrome is controlled at 20～60 ℃, preferably is controlled at 25～50 ℃.Cooling media is an air.
Its drafting forming process of polyphenylene sulfide core-skin composite short fiber of the present invention is one and is higher than the process of carrying out drawing-off and typing in the polyphenylene sulfide glass temperature environment that it adds thermal medium is electrical heating.Its drawing temperature of application, drawing-off multiplying power according to polyphony thioether short fiber are different.For the degree of orientation and the degree of crystallinity that improves fiber, reduce the dry-hot shrinkage of fiber, its drafting process can be divided into 3 roads or 4 road drawing-offs are carried out, the total draft multiplying power is controlled at 1.5～6.0 times, preferably be controlled at 2.5～5.0 times, 80～260 ℃ of drawing temperatures, drawing temperature preferably are controlled at 90～250 ℃.In carrying out the multiple tracks drafting process, its total draft multiple can be assigned to each road drawing-off and finish.As when adopting 3 road drawing-offs, the 1st road drawing-off multiplying power is 1.1～1.5 times of total draft multiplying power, and the 2nd road drawing-off multiplying power is 1.8～3.5 times of total draft multiplying power, and the 3rd road drawing-off multiplying power is 1.05～1.2 times of total draft multiplying power.If when adopting 4 road drawing-offs, the 1st road drawing-off multiplying power is 1.1～1.4 times of total draft multiplying power, the 2nd road drawing-off multiplying power is 2～3.5 times of total draft multiplying power, and the 3rd road drawing-off multiplying power is 1.05～1.2 times of total draft multiplying power, and the 4th road drawing-off multiplying power is 1.01～1.15 times of total draft multiplying power; Setting temperature is controlled at 150～280 ℃, preferably is controlled at 160～260 ℃, and loose rate is 8.0～11.0%, preferably is controlled at 2.0～4.0%.
Its drafting forming speed of polyphenylene sulfide core-skin composite short fiber of the present invention is 600～1500m/min, and according to line density polyphenylene sulfide slice and fibre single thread, its drafting forming speed is controlled at 800～1200m/min usually.
Its final filament line density of polyphenylene sulfide core-skin composite short fiber of the present invention is at 0.5～10.0dtex, preferably be controlled at 1.0～8.0dtex, usually the line density of usefulness is controlled at 1.5～7.0dtex, and polyphenylene sulfide core-skin composite short fiber length is generally 38mm, 51mm, 76mm, 102mm etc.
Technique effect of the present invention: select for use the linear polyphenylene sulfide section of function admirable to be cortex, PET or PEN or PA6 or PA66 are sandwich layer, adopt compound the spinning of custom-designed one-step method to lead associating staple fibre complete set of equipments, through the strict process control process, can produce all more excellent polyphony thioether short fibers of performance such as fracture strength, extension at break, dry-hot shrinkage.Good product quality, stable production process, manageability, row yielding height, cost is low, efficient is high; Significant more effect is than one-component PPS staple fibre, because sandwich layer has adopted inexpensive PET or PEN or PA6 or PA66, its cost of material can reduce more than 30～40%, has established price advantage for applying in environmental protection industry.
Further specify below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a polyphenylene sulfide composite short fibre complete set of equipments schematic diagram
A1, B1-screw extruder A2, B2-filter 3-composite spinning casing 4-core-skin composite spinneret
5-annealing device 6-quench device 7-oiling roller 8-godet roller
The 4th group of hot-rolling of the 3rd group of hot-rolling 12-of second group of hot-rolling 11-of first group of hot-rolling 10-of 9-
The 5th group of hot-rolling 14-of 13-three roller godet roller 15-crimping machine 16-cutting machines
17-conveyer 18-baling press
Fig. 2 is a polyphenylene sulfide core-skin composite short fiber cross-sectional picture
The present invention selects the polyphenylene sulfide slice of moisture content≤30PPM after super-dry of function admirable, is injected into screw extruder Melting among the A1,280～340 ℃ of melt temperatures, multiple through entering after the melt process measuring pump metering behind the filter A2 impurity screening Close in the spinning manifold 3; The B component is selected dried PET or PEN or PA6 or PA66 section, is injected into screw extruder Melting among the B1,260～300 ℃ of melt temperatures, melt filters out impurity through filter B2, and melt enters after the measuring pump metering In the composite spinning casing 3. A component and B component melt enter respectively the Compound spinning assembly through core-skin spinneret 4 core-sheaths, from The strand of ejection is after cooling curing oils by oiling roller 7 in annealing device 5 and ring blowing 6, through godet in the spinneret 4 Enter behind 8 boundlings and carry out many times of drafting forming of multiple tracks, the filament after the drafting forming in five groups of hot- rollings 9,10,11,12,13 Shu Jingsan roller godet 14 enters and carries out curling, curling tow in the crimping machine 15 and enter the length that cutting machine 16 cuts into regulation, Short fiber after the cut-out is transported in the baling press 18 through conveyer 17 and packs. Drafting multiple is 2～5 times, and drawing temperature is 80～260 ℃, setting temperature is 150～280 ℃, and the 5th group of hot-rolling drafting forming speed is 100～1500m/min, makes single fiber The dimension line density is 1～10dtex, and shearing length is that 38mm, 51mm, 76mm and 102mm etc. all can.
The specific embodiment
Embodiment 1
It is the linear PPS section of 210g/10min that the A component adopts MFR, melt extrude at screw rod for fear of polyphenylene sulfide slice and to produce putty in the process, cause pressure oscillation, oxidative degradation and situation such as crosslinked, before melt spinning, carry out dry polyphenylene sulfide slice in known vacuum drum or pre-crystallizing and drying equipment, moisture content is 23PPM.Extruder temperature is 280～325 ℃ during spinning; The B component adopts the PET section of inherent viscosity 0.67, and dry back moisture content is 30PPM, and extruder temperature is 278～295 ℃ during fusion.300 ℃ of compound spin manifold temperatures, The hole diameter of spinneret 0.3mm, draw ratio (L/D) is 6, and the spinnerets hole count is 2000 holes, and the slow cooling offset is from 10cm place, spinnerets below, 240 ℃ of slow cooling district temperature; 30 ℃ of cooling zone wind-warm syndrome; Oil by 1.6% rate of oiling; Adopt three road drawing-offs to carry out drawing-off, the total draft multiple is 4.0 times, drafting forming speed 1200m/min.Each road drawing roller temperature and multiple, setting temperature, winding speed and polyphenylene sulfide composite short fibre physical index ginseng are shown in Table 1.
Embodiment 2: spinning condition adopts four road drafting process all with embodiment 1 when only being drawing-off, and draw conditions and physical index ginseng are shown in Table 1.
Embodiment 3:A component is with embodiment 1, and the B component is the PEN of moisture content 30PPM, and extruder temperature is 275～290 ℃ during fusion, and spinning condition and drafting forming condition and physical index are shown in Table 1.
Embodiment 4:A component is with embodiment 1, and the B component is the PA6 of moisture content 150PPM, and extruder temperature is 265～288 ℃ during fusion, and spinning condition, drafting forming condition and physical index are shown in Table 1.
Embodiment 5:A component is with embodiment 1, and the B component is the PA66 of moisture content 260PPM, and extruder temperature is 280～290 ℃ during fusion, and spinning condition, drafting forming condition and physical index are shown in Table 1.
Table 1 embodiment technological parameter and rerum natura table
Claims (8)
1. polyphenylene sulfide composite short fibre one-step method complete set of equipments and production method.It is characterized in that melt composite spinning equipment and drafting forming equipment form whole process and the complete set of equipments of system integration and the production method that can produce polyphenylene sulfide composite short fibre continuously.
2. polyphenylene sulfide composite short fibre one-step method complete set of equipments and production method is characterized in that comprising the steps:
(1) melt composite spinning: with the polyphenylene sulfide slice behind the pre-crystallizing and drying is that the A component carries out fusion and filtration in screw extruder, enters the compound casing that spins after the measuring pump metering; With dried PET or PEN or PA6 or PA66 section is B component fusion and filtration in screw extruder, enters the multiple unit tube body then behind measuring pump.The compound ejection of core-skin composite component in compound casing of A, B component.
(2) slow cooling and cooling: the melt after core-skin is compound is after the spinnerets ejection, through slow cooling district and cooling zone solidified forming.
(3) multiple tracks drafting forming: the fiber of solidified forming enters the multiple tracks drafting forming behind the seal wire that oils.
3. according to the production method of claim 1,2 described polyphenylene sulfide composite short fibres, it is characterized in that in the linear polyphenylene sulfide section
Construction unit content 〉=90% (mol/mol), melt index MFR are 20～600g/10min.
4. according to the production method of claim 1,2 described polyphenylene sulfide composite short fibres, it is characterized in that in the core-skin composite short fiber that the cortex component is PPS, sandwich layer is PET or PEN or PA6 or PA66.
5. according to the production method of claim 1,2 described polyphony thioether short fibers, it is characterized in that 280～340 ℃ of the melt temperature of linear polyphenylene sulfide section in screw extruder, The hole diameter of spinneret 0.1～1.0mm, draw ratio L/D are 3.0～10.0, and the spinnerets hole count is 2000 holes.
6. according to the production method of claim 1,2 described polyphony thioether short fibers, it is characterized in that 10cm place, spinnerets below is provided with the slow cooling district, slow cooling district temperature is controlled at 190～300 ℃, and the cooling zone wind-warm syndrome is controlled at 20～60 ℃.
7. according to the production method of claim 1,2 described polyphony thioether short fibers, continuous multiple tracks drawing-off and typing have been it is characterized in that adopting, the total draft multiple is 1.5～6.0 times, drawing temperature is 80～260 ℃, setting temperature is 150～280 ℃, and drafting forming speed is 600～1500m/min.
8. according to the production method of claim 1,2 described polyphony thioether short fibers, the line density that it is characterized in that making polyphony thioether short fiber is 1.0～10dtex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100774394A CN101187074A (en) | 2007-11-28 | 2007-11-28 | Polyphenylene sulfide composite short fibre one-step method complete equipment and production method |
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| CNA2007100774394A CN101187074A (en) | 2007-11-28 | 2007-11-28 | Polyphenylene sulfide composite short fibre one-step method complete equipment and production method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644130A (en) * | 2012-05-03 | 2012-08-22 | 东华大学 | Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof |
| CN104264252A (en) * | 2014-09-24 | 2015-01-07 | 江苏埃塞启航新材料装备制造有限公司 | Complete production equipment for high-intensity polyphenylene sulfide composite filament |
| CN105543987A (en) * | 2016-02-22 | 2016-05-04 | 苏州金泉新材料股份有限公司 | Method for preparing polyester short fiber by using one-step method |
| CN106048779A (en) * | 2016-06-27 | 2016-10-26 | 马海燕 | Large-diameter polyphenylene sulfide composite monofilament and production method thereof |
| CN106245405A (en) * | 2016-08-31 | 2016-12-21 | 江苏理文造纸有限公司 | The manufacture device of fast dewatering fiber and manufacture method for forming net |
| CN106245406A (en) * | 2016-08-31 | 2016-12-21 | 江苏理文造纸有限公司 | Manufacture device and manufacture method for fast dewatering forming net |
| TWI777008B (en) * | 2017-12-21 | 2022-09-11 | 日商東麗股份有限公司 | Polyphenylene sulfide short fiber and method for producing the same, fiber structure, filter felt, and bag filter |
-
2007
- 2007-11-28 CN CNA2007100774394A patent/CN101187074A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644130A (en) * | 2012-05-03 | 2012-08-22 | 东华大学 | Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof |
| CN102644130B (en) * | 2012-05-03 | 2014-04-02 | 东华大学 | Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof |
| CN104264252A (en) * | 2014-09-24 | 2015-01-07 | 江苏埃塞启航新材料装备制造有限公司 | Complete production equipment for high-intensity polyphenylene sulfide composite filament |
| CN105543987A (en) * | 2016-02-22 | 2016-05-04 | 苏州金泉新材料股份有限公司 | Method for preparing polyester short fiber by using one-step method |
| CN106048779A (en) * | 2016-06-27 | 2016-10-26 | 马海燕 | Large-diameter polyphenylene sulfide composite monofilament and production method thereof |
| CN106245405A (en) * | 2016-08-31 | 2016-12-21 | 江苏理文造纸有限公司 | The manufacture device of fast dewatering fiber and manufacture method for forming net |
| CN106245406A (en) * | 2016-08-31 | 2016-12-21 | 江苏理文造纸有限公司 | Manufacture device and manufacture method for fast dewatering forming net |
| CN106245405B (en) * | 2016-08-31 | 2018-02-06 | 江苏理文造纸有限公司 | Manufacture device and manufacture method for the fast dewatering fiber of forming net |
| CN106245406B (en) * | 2016-08-31 | 2018-05-01 | 江苏理文造纸有限公司 | Manufacture device and manufacture method for fast dewatering forming net |
| TWI777008B (en) * | 2017-12-21 | 2022-09-11 | 日商東麗股份有限公司 | Polyphenylene sulfide short fiber and method for producing the same, fiber structure, filter felt, and bag filter |
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Open date: 20080528 |