CN104795525B - A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm and preparation method thereof - Google Patents
A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm and preparation method thereof Download PDFInfo
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- CN104795525B CN104795525B CN201510240715.9A CN201510240715A CN104795525B CN 104795525 B CN104795525 B CN 104795525B CN 201510240715 A CN201510240715 A CN 201510240715A CN 104795525 B CN104795525 B CN 104795525B
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- 239000004734 Polyphenylene sulfide Substances 0.000 title claims abstract description 156
- 229920000069 poly(p-phenylene sulfide) Polymers 0.000 title claims abstract description 156
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 74
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005098 hot rolling Methods 0.000 claims abstract description 47
- 239000000835 fiber Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000002844 melting Methods 0.000 claims abstract description 16
- XWUCFAJNVTZRLE-UHFFFAOYSA-N 7-thiabicyclo[2.2.1]hepta-1,3,5-triene Chemical compound C1=C(S2)C=CC2=C1 XWUCFAJNVTZRLE-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 239000008188 pellet Substances 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 20
- 239000004744 fabric Substances 0.000 claims description 11
- 230000001112 coagulant Effects 0.000 claims description 2
- 210000000188 Diaphragm Anatomy 0.000 abstract 5
- 239000000463 material Substances 0.000 description 19
- 239000002994 raw material Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 229920002456 HOTAIR Polymers 0.000 description 10
- 238000005507 spraying Methods 0.000 description 10
- 238000001291 vacuum drying Methods 0.000 description 10
- 238000009998 heat setting Methods 0.000 description 9
- 239000002759 woven fabric Substances 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 8
- -1 poly(p-phenylene terephthalamide) Polymers 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000004698 Polyethylene (PE) Substances 0.000 description 2
- 150000001875 compounds Chemical group 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000004750 melt-blown nonwoven Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920003366 poly(p-phenylene terephthalamide) Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-Methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 206010061592 Cardiac fibrillation Diseases 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium Ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000002600 fibrillogenic Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 235000005035 ginseng Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000002588 toxic Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
Abstract
The present invention relates to a kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragms and preparation method thereof.Including the polyphenylene sulfide pellet drying in melt-blown polyphenylene sulfide non-woven fabrics preparation process, melting extrusion, hot wind drawing-off, cooling, solidifying net, the process conditions that the present invention carries out hot rolling treatment and thermal finalization processing using poly-p-phenylene sulfide ether superfine fibre net optimize, and melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm is made.The melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm that the present invention prepares has the advantages that fusing point height, broken film temperature height, good flame resistance, thinner thickness, any surface finish, chemistry and good stability of the dimension, and the lithium battery diaphragm has good absorbency, smaller aperture and higher porosity, the requirement of lithium battery diaphragm is met, improve the security of lithium battery and extends its service life.
Description
Technical field
The present invention relates to the preparation methods of lithium battery diaphragm, are specifically a kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm
And preparation method thereof.
Background technology
Lithium battery because have many advantages, such as that high-energy-density, long circulation life, memory-less effect are developed rapidly in recent years,
But the security of lithium battery is always to restrict the key issue of its development.Membrane is exactly the key composition concerning lithium battery security
Part.Membrane is the electrical insulating property film for having porous structure, and main function is to isolate positive and negative electrode and make electronics in battery not
It can pass freely through, while ion (in electrolyte solution) can be allowed to be passed freely through in positive and negative interpolar.Its performance determines the boundary of battery
Face structure, internal resistance etc. directly affect the characteristics such as capacity, the cycle performance of battery.Therefore membrane need to have high ion percent of pass,
The property of good mechanical performance and solvent resistant (electrolyte).
Non-woven cloth battery diaphragm is that non-woven cloth passes through certain physics or chemical treatment, to reach battery diaphragm
A kind of battery diaphragm that can be required, main species have dry non-woven cloth and wet laid nonwovens, at present Foreign Nonwoven
Battery diaphragm production technology comparative maturity has the U.S., Japan and Germany, and such as the exploitation of Feuderberg companies of Germany is 20 μm thin
Type high-temperature-resistant membrane nonwoven product, using wet-formed and hot wind aftertreatment technology, 3 ~ 4 μ of filament diameter of web
M, the heat resistance of product is up to 230 DEG C；The polyolefm non-woven cloth battery diaphragm of Japanese Vilence companies exploitation uses 3 kinds of fibres
Dimension, passes through the mass area ratio 40g/m of wet-laying mode2, the diaphragm material of thickness 0.10mm；Japanese Denso companies
Using 4- methylpentene polymers, filament diameter is made as 0.8 ~ 5.0 μm, list in the melt blown non-woven battery diaphragm of exploitation
Position 9 ~ 30g/m of area quality2Battery diaphragm.And domestic South China Science ＆ Engineering University's Pulp and Paper Engineering laboratory is in lithium battery diaphragm
Research in, use poly(p-phenylene terephthalamide)（PPTA）High fibrillation dissolving pulp and PET chopped strand raw materials, using wet method
Non-woven cloth formation process successfully obtains the series of products that heat resistance is better than conventional polyolefins lithium battery diaphragm.
In the prior art, Chinese patent CN103887466A, publication date on June 25th, 2014, patent of invention is entitled
" a kind of preparation method of polypropylene fibre melt-blown battery diaphragm ", the invention is using polypropylene fibre section as raw material, using adding in process
Hydrophilic master batch and the joint processing of hydrophilic finiss two ways is carried out to polypropylene fibre melt-blow nonwoven, and in conventional polypropylene fibre melt-blown nonwoven
Hot-rolled process is added on cloth, improves the strength property of material, battery diaphragm prepared by this method has big specific surface area,
The advantages that high porosity, chemical purity is excellent, minimum dimensional contraction, good flexibility and cheap price.But by
Relatively low in the fusing point of polypropylene material, manufactured membrane broken film temperature is very low, and itself anti-flammability is bad, causes lithium battery
Security it is bad.China Patent No. CN103205123A, publication date on July 17th, 2013, a kind of entitled " lithium of patent of invention
Polyphenylene sulfide high-temperature digestion is obtained homogeneous phase solution, will mixed by the production method of battery polyphenylene sulfide diaphragm ", the invention
Liquid is squeezed out with casting machine and Quench, obtains polyphenylene sulfide porous film, and battery diaphragm broken film temperature prepared by this method is high, anti-flammability
It is good.But this kind of procedure is relatively complicated, the organic solvent used is mostly toxic solvent, not environmentally.China Patent No.
CN101736418A, publication date on June 16th, 2010, a kind of entitled " system of polyphenylene sulfide meltblown fiber products of patent of invention
Make method ", which melts by 5 ~ 60,000 and polyphenylene sulfide of the molecular weight distribution index between 1.8 ~ 19 of weight average molecular weight
Spray fibrous material is raw material, and double screw extruder is melted, is granulated after high-speed stirred batch mixing, section melts, squeezes out spinneret, is obtained
Polyphenylene sulfide meltblown staple fiber, and with nitrogen quick refrigeration, the short fine toughness of polyphenylene sulfide that this method obtains is preferable, still, right
It is developed in polyphenylene sulfide meltblown fiber for the related application of lithium battery diaphragm product, which does not relate to concrete technology ginseng
Number and technical solution.China Patent No. CN103961939A, publication date August in 2014 6 days, patent of invention is entitled, and " one kind is poly-
The preparation method of diphenyl sulfide composite filtering material ", the invention pass through to melt-blown polyphenylene sulfide fibre net and polyphony thioether short fiber Netcom
It is compound to cross the progress of array embedding inlay technique, thermal finalization processing is then carried out to composite filtering material using temperature programming technique, obtains one kind
Polyphenylene sulfide composite filtering material, this method poly-p-phenylene sulfide ether composite fiber web carry out thermal finalization processing, obtain high compound of filterability
Filtrate still, carries out hot rolling treatment for individual layer melt-blown polyphenylene sulfide fibre net and thermal finalization is handled, which does not relate to
Specific process parameter and technical solution.
The membrane that lithium battery uses at present is all polypropylene mostly（PP）Or polyethylene（PE）Material.And PP materials or
Be PE materials fusing point it is relatively low, the broken film temperature for causing membrane is very low, and itself anti-flammability is bad, causes the peace of lithium battery
Full property is not high.
The content of the invention
For above-mentioned technology there are the problem of, it is an object of the present invention to provide it is a kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery every
Film and preparation method thereof obtains fusing point height, and broken film temperature is high, the septum for lithium ion battery of good flame resistance.Because of the ultra-fine fibre of polyphenylene sulfide
Dimension has excellent intensity, rigidity and fatigue durability at high temperature, the stable for extended periods of time at 250 DEG C, while it is with excellent
Chemical resistance.In order to achieve the above objectives, the present invention is achieved by the following technical solutions：
A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm, in the melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm
A diameter of 0.5 ~ 10 μm of superfine fibre, thickness are 20 ~ 100 μm, and aperture is 0.1 ~ 2 μm, and porosity is 30% ~ 60%, unit area
Polyphenylene sulfide non-woven membrane grammes per square metre is 4 ~ 20g/m2。
A kind of preparation method for being meltblown polyphenylene sulfide non-woven fabrics lithium battery diaphragm is prepared including melt-blown polyphenylene sulfide non-woven fabrics
Net is coagulated in polyphenylene sulfide pellet drying in technique, melting extrusion, hot wind drawing-off, cooling, and poly-p-phenylene sulfide ether superfine fibre net carries out
Hot rolling treatment and thermal finalization processing, wherein：
The dried polyphenylene sulfide pellets of a are by melting extrusion, through hot wind drawing-off, cooling, after coagulating net, to being meltblown polyphenylene sulfide
Ether superfine fibre net carries out the temperature of hot rolling treatment as 60~120 DEG C, and hot rolling pressure is 0.1~0.5MPa, and the hot rolling time is 20
Melt-blown polyphenylene sulfide hot rolling treatment non-woven membrane is made in~80s；
B be to the technique of hot rolled treated melt-blown polyphenylene sulfide hot rolling treatment non-woven membrane thermal finalization processing 85 ~
Thermal finalization handles 6min under the conditions of 95 DEG C, and then thermal finalization handles 5min under the conditions of 100 ~ 120 DEG C, finally at 150 ~ 180 DEG C
Under the conditions of thermal finalization processing 3min, be made a diameter of 0.5 ~ 10 μm of superfine fibre, thickness be 20 ~ 100 μm, aperture be 0.1 ~ 2 μm,
Porosity is 30% ~ 60%, and unit area polyphenylene sulfide non-woven membrane grammes per square metre is 4 ~ 20g/m2It is meltblown polyphenylene sulfide non-woven fabrics lithium electricity
Pond membrane.
As a result of above technical scheme, the preparation method of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm of the invention
It has the following advantages：
1 present invention selects melt-blown polyphenylene sulfide non-woven fabrics to prepare lithium battery diaphragm, and polyphenylene sulfide superfine fiber is a kind of new
Type high-performance synthetic fibers, because polyphenylene sulfide fusing point is high, prepared superfine fibre has excellent intensity, just at high temperature
Property, fatigue durability and anti-flammability, stable for extended periods of time can be descended at 200 DEG C, there is excellent chemical stability, lithium electricity can be met
Requirement of the pond membrane to chemical resistance and thermal stability can extend the service life that lithium battery diaphragm uses, carry simultaneously well
Its high security；And the polyphenylene sulfide nonwoven cloth diaphragm prepared by melt-blown process has smaller aperture due, larger specific surface area
The advantages of with high porosity, broken film temperature height, good flame resistance, good chemical stability.
2 present invention carry out surface hot rolling treatment to melt-blown polyphenylene sulfide fibre net, by changing the temperature of hot rolling, hot rolling
Pressure and hot rolling time, the polyphenylene sulfide nonwoven cloth diaphragm of different-thickness can be obtained.It is handled finally by thermal finalization, it can
To obtain the polyphenylene sulfide nonwoven cloth diaphragm of dimensionally stable.Therefore, the polyphenylene sulfide non-woven fabrics lithium electricity prepared by this kind of method
Pond membrane meets the thickness of fibre fineness needed for lithium battery diaphragm, aperture, porosity and membrane.
Melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm prepared by the present invention has high fusing point, broken film temperature height, anti-flammability
The advantages of good, thinner thickness, any surface finish, chemistry and good stability of the dimension, and the lithium battery diaphragm has good imbibition
Property, smaller aperture and higher porosity meet the requirement of lithium battery diaphragm, and improve the security of lithium battery and prolong
Its service life is grown.
Specific embodiment
The present invention is described in further detail with reference to specific example.
A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm, in the melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm
A diameter of 0.5 ~ 10 μm of superfine fibre, thickness are 20 ~ 100 μm, and aperture is 0.1 ~ 2 μm, and porosity is 30% ~ 60%, unit area
Polyphenylene sulfide non-woven membrane grammes per square metre is 4 ~ 20g/m2。
A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm preparation method, preparation method carry out according to the following steps：
It is meltblown the processing of polyphenylene sulfide non-woven fabrics lithium battery diaphragm：
A selects suitable polyphenylene sulfide pellet, places it in vacuum drying oven application of vacuum for 24 hours, treatment temperature 100~150
DEG C, 10~50g/10min of polyphenylene sulfide beads fuse index range；
B is by the polyphenylene sulfide pellet after a step process through melt spraying non-woven fabrics machine Screw Extrusion, and then poly-p-phenylene sulfide ether melts
Body carries out drawing-off cooling, then forms superfine fibre fibre net structure on solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made.Wherein, add
4 ~ 10rpm of the range of speeds of metering pump during material, the feeding area temperature of barrel is 280 ~ 320 DEG C, presses during melting extrusion
Contracting area temperature is 300 ~ 340 DEG C, melting zone temperature is 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature
For 320 ~ 340 DEG C, side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, lapping rate
For 0.1~2m/min；
C carries out hot rolling treatment, the polyphenylene sulfide nonwoven of thermal finalization is made to the polyphenylene sulfide non-woven fabrics prepared through b step
Cloth, 60~120 DEG C of hot-rolled temperature, hot rolling 0.3~0.4MPa of pressure, hot rolling time are 10~80s；
The polyphenylene sulfide non-woven fabrics prepared through step c is carried out thermal finalization processing by d using temperature programming technique, wherein, institute
The temperature programming technique stated is 85 ~ 95 DEG C of processing 6min, then 100 ~ 120 DEG C of processing 5min, last 150 ~ 180 DEG C of processing
A diameter of 0.5 ~ 10 μm of superfine fibre is made in 3min, and thickness is 20 ~ 100 μm, and aperture is 0.1 ~ 2 μm, and porosity is 30% ~ 60%,
Unit area polyphenylene sulfide non-woven membrane grammes per square metre is 4 ~ 20g/m2Melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm.
Specific embodiment
Embodiment 1
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 60 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 80s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 180 DEG C, time 10min.
Embodiment 2
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 70 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 70s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 170 DEG C, time 12min.
Embodiment 3
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 80 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 60s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 160 DEG C, time 14min.
Embodiment 4
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 90 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 70s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 150 DEG C, time 16min.
Embodiment 5
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 100 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 40s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 140 DEG C, time 18min.
Embodiment 6
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 110 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 30s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 130 DEG C, time 20min.
Embodiment 7
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 120 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 20s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 120 DEG C, time 24min.
Embodiment 8
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 120 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 10s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 110 DEG C, time 28min.
Embodiment 9
1 melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm processing：Melt index is selected as 10~50g/10min polyphenylene sulfides
Ether section is raw material, and polyphenylene sulfide slice is put into vacuum drying chamber and is dried in vacuo for 24 hours, and temperature is set as 120 DEG C, then will
Polyphenylene sulfide slice after drying process is through HDF-6D type melt spraying non-woven fabrics machine Screw Extrusions, and poly-p-phenylene sulfide ether melt is led
Cooling is stretched, then forms superfine fibre web frame in solidifying lace curtaining, polyphenylene sulfide non-woven fabrics is made；
Screw extruder temperature is set：Due to selecting different melt index polyphenylene sulfide slices, different melt index need
Select different barrel temperature, set temperature value be the feeding area temperature of barrel be 280 ~ 320 DEG C, compressional zone temperature is 300 ~ 340
DEG C, melting zone temperature be 300 ~ 340 DEG C, tip nozzles temperature is 310 ~ 330 DEG C, hot air temperature be 320 ~ 340 DEG C；
Metering pump flow control：Metering pump discharge significantly affects material fineness and the uniformity, to obtain ultra-fine polyphenylene sulfide
Fiber, need to reduce the flow of metering pump, and the measure of production revolution speed is 4 ~ 10rmp；
Side-blown airspeed is 0.1~0.5m/s in cooling procedure, and melt-blown receives distance as 50~60cm, and lapping rate is
0.1~2m/min.
2 pairs through upper step prepare polyphenylene sulfide non-woven fabrics, carry out hot rolling treatment, be made thermal finalization polyphenylene sulfide without
Woven fabric, 120 DEG C of hot-rolled temperature, hot rolling 0.1~0.5MPa of pressure, hot rolling time are 10s.
3 will be hot rolled after polyphenylene sulfide non-woven fabrics using temperature programming technique carry out thermal finalization processing, wherein, heat
Setting temperature is 100 DEG C, time 30min.
Claims (1)
1. a kind of preparation method for being meltblown polyphenylene sulfide non-woven fabrics lithium battery diaphragm prepares work including melt-blown polyphenylene sulfide non-woven fabrics
Net is coagulated in polyphenylene sulfide pellet drying in skill, melting extrusion, hot wind drawing-off, cooling, and poly-p-phenylene sulfide ether superfine fibre net carries out heat
Roll processing and thermal finalization processing, it is characterised in that：
The dried polyphenylene sulfide pellets of a are by melting extrusion, and through hot wind drawing-off, cooling is ultra-fine to melt-blown polyphenylene sulfide after coagulating net
Web carries out the temperature of hot rolling treatment as 60~120 DEG C, and hot rolling pressure is 0.1~0.5MPa, and the hot rolling time is 20~80s,
Melt-blown polyphenylene sulfide hot rolling treatment non-woven membrane is made；
B is at 85~95 DEG C to the technique of hot rolled treated melt-blown polyphenylene sulfide hot rolling treatment non-woven membrane thermal finalization processing
Under the conditions of thermal finalization processing 6min, then under the conditions of 100~120 DEG C thermal finalization handle 5min, finally in 150~180 DEG C of items
Thermal finalization handles 3min under part, and a diameter of 0.5~10 μm of superfine fibre is made, and thickness is 20~100 μm, and aperture is 0.1~2 μ
M, porosity are 30%~60%, and unit area polyphenylene sulfide non-woven membrane grammes per square metre is 4~20g/m2It is meltblown polyphenylene sulfide nonwoven
Cloth lithium battery diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240715.9A CN104795525B (en) | 2015-05-13 | A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240715.9A CN104795525B (en) | 2015-05-13 | A kind of melt-blown polyphenylene sulfide non-woven fabrics lithium battery diaphragm and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104795525A CN104795525A (en) | 2015-07-22 |
| CN104795525B true CN104795525B (en) | 2018-06-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736418A (en) * | 2009-11-26 | 2010-06-16 | 陈逊 | Method for manufacturing polyphenylene sulfide meltblown fiber products |
| CN102517978A (en) * | 2011-12-29 | 2012-06-27 | 中国纺织科学研究院 | Polyphenylene sulfide paper and preparation method thereof |
| WO2014046120A1 (en) * | 2012-09-21 | 2014-03-27 | 東レ株式会社 | Polyphenylene sulfide composite fiber and non-woven fabric |
| CN104603981A (en) * | 2012-06-29 | 2015-05-06 | 吉坤日矿日石能源株式会社 | Lithium-ion secondary battery separator |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736418A (en) * | 2009-11-26 | 2010-06-16 | 陈逊 | Method for manufacturing polyphenylene sulfide meltblown fiber products |
| CN102517978A (en) * | 2011-12-29 | 2012-06-27 | 中国纺织科学研究院 | Polyphenylene sulfide paper and preparation method thereof |
| CN104603981A (en) * | 2012-06-29 | 2015-05-06 | 吉坤日矿日石能源株式会社 | Lithium-ion secondary battery separator |
| WO2014046120A1 (en) * | 2012-09-21 | 2014-03-27 | 東レ株式会社 | Polyphenylene sulfide composite fiber and non-woven fabric |
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