CN105390640B - A kind of lead-acid accumulator PE dividing plates and preparation method - Google Patents
A kind of lead-acid accumulator PE dividing plates and preparation method Download PDFInfo
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- CN105390640B CN105390640B CN201510634497.7A CN201510634497A CN105390640B CN 105390640 B CN105390640 B CN 105390640B CN 201510634497 A CN201510634497 A CN 201510634497A CN 105390640 B CN105390640 B CN 105390640B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/14—Assembling a group of electrodes or separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a kind of lead-acid accumulator PE dividing plates and preparation method, PE dividing plates are made up of glass fibre masterbatch 50 ~ 80, silica 260 ~ 300, ultra-high molecular weight polyethylene 80 ~ 110, feedstock oil 490 ~ 540, antioxidant 0.3 ~ 0.8 and carbon black 10 ~ 16；Wherein glass fibre masterbatch is made up of glass fibre cotton 0.9 ~ 9.1, extra high molecular weight northylen 5.9 ~ 7.1, silica 34 ~ 42, carbon black 0.6 ~ 1.5 and feedstock oil 43 ~ 55.Glass fibre masterbatch is prepared by made raw material through batch mixing and extruding pelletization；PE dividing plates are made up of made raw material through batch mixing, extrusion molding, oil pumping stripping, paint drying, inspection hole winding and following process.PE dividing plates porous of the present invention, low resistance, have big puncture, antioxygenic property is preferable, and manufactured battery starting performance is good, and large current discharging capability is strong.
Description
Technical field
The invention belongs to battery technology field, is related to a kind of PE dividing plates for lead-acid accumulator and preparation method thereof.
Background technology
Dividing plate is important composition part in battery, and it is placed between the positive/negative plate of battery, the good and bad direct shadow of dividing plate
Ring the discharge capacity and charge and discharge cycles service life of battery.Dividing plate has following functions in battery, first, preventing positive and negative
Pole contacts with each other and internal short-circuit of battery occurs；Second, to there is certain intensity, prevent pole plate deformation, bending and active material from taking off
Fall；Third, the electrolyte of diaphragm internal storage necessary amount, to ensure the requirement of higher electric conductivity and cell reaction.In addition,
Separator material will also aspire for stability, only containing a small amount of harmful ion or without harmful ion.According to requirements above, high-quality dividing plate will have
There are following characteristics：1. separator material is insulator in itself, but the dividing plate made will have loose porous structure；2. the chemistry of dividing plate
Stability will get well, sulfuric acid corrosion resistant, resistance to oxidation and aging；3. dividing plate will have significantly mechanical strength and toughness, it is easy to production to pacify
Dress；4. dividing plate can not leach the impurity being harmful to battery in sulfuric acid；5. the resistance of dividing plate in the electrolytic solution is small；6. dividing plate has
There is broader temperature range.
Have at present using more extensive battery separator:Microporous rubber separator, sintering polyvinylchloride dividing plate, melt-blown
Polypropylene PP dividing plates, microporous polyethylene PE dividing plates and glass fibre separator etc..In these dividing plates, PE dividing plates are with its excellent property
It can be generalized in the use of battery rapidly.But with the development of automobile automatic start-stop system, the requirement to PE dividing plates is got over
Come higher.The resistance of PE dividing plates how is further reduced, increases its porosity, the starting performance for strengthening dividing plate is anxious to be resolved asks
Topic.
The content of the invention
The purpose of the present invention is exactly to solve the above-mentioned problems in the prior art, there is provided it is a kind of keep PE batteries every
On the basis of the original performance of plate, hence it is evident that reduce the resistance of PE battery separators, increase the plumbic acid of PE battery separator porositys
Battery PE dividing plates and preparation method.
To solve the above problems, the technical solution of the present invention is：A kind of lead-acid accumulator PE dividing plates, it is by following original
Material is made：By weight calculating, glass fibre masterbatch 50 ~ 80, silica 260 ~ 300, ultra-high molecular weight polyethylene 80 ~ 110,
Feedstock oil 490 ~ 540, antioxidant 0.3 ~ 0.8 and carbon black 10 ~ 16；
Described glass fibre masterbatch is made up of following raw material：It is special by weight calculating, glass fibre cotton 0.9 ~ 9.1
High molecular weight polyethylene 5.9 ~ 7.1, silica 34 ~ 42, carbon black 0.6 ~ 1.5 and feedstock oil 43 ~ 55；
Described feedstock oil is a kind of mixture, and its composition is following three kinds of materials：
Saturated alkane compound, it includes alkane and cycloalkane, adds up to 65% ~ 75%；Aromatic compound：25%~35%；Pole
Property compound：0~3%；
The cyclanes compound is a ring cycloalkane, bicyclic ring alkane, tricyclic naphthenes hydrocarbon, Fourth Ring cycloalkane, five rings ring
Alkane and six ring cyclanes compounds, wherein, one ~ tricyclic naphthenes hydrocarbon is main component；
The aromatic compound is alkylbenzene, cycloalkyl benzene, bicyclic alkyl benzene, total mononuclear aromatics, total double ring arene, total three
PAH, total four PAH, total five PAH and thiophene compound, using total mononuclear aromatics as Main Ingredients and Appearance；
The polar compound is the material of the chain hydrocarbon containing N, P, S, O, cycloalkane and aromatic hydrocarbons.
It is further preferred that described antioxidant is antioxidant 300.
It is further preferred that the ultra-high molecular weight polyethylene is polyethylene of the molecular weight more than 3,000,000, it is described extra-high
The molecular weight of molecular weight polyethylene is 50-100 ten thousand polyethylene, and the silica average grain diameter is 19 ~ 25 μm, described glass
A diameter of 1.5 ~ 1.9 μm of glass cellucotton.
The preparation method of lead-acid accumulator PE dividing plates described above, it comprises the following steps：
A, the preparation of glass fibre masterbatch：（1）Batch mixing：First by the silica of the amount and the glass fibre cotton of the amount
Add and 2 ~ 10min is mixed in batch mixer, the feedstock oil for adding the amount continues 3 ~ 8min of mixing, finally by the extra-high of the amount
Molecular weight polyethylene and the carbon black of the amount add, and continue 5 ~ 10min of stirring until material is well mixed；（2）Extruding pelletization：Will
The material mixed is transported in double screw extruder by feeder, is extruded into bar, then material is drawn and is granulated into stock-cutter；
B, the preparation of PE dividing plates：（1）Batch mixing：Glass fibre masterbatch, silica, the superhigh molecular weight polyethylene that will be prepared
Alkene, carbon black and antioxidant add according to the amount and 20 ~ 30min are mixed in batch mixer, afterwards add the feedstock oil of the amount
Continue 80 ~ 100min of mixing in batch mixer, until material is well mixed；（2）Extrusion molding：By the raw material mixed by twin-screw
Extruder is extruded, then compressing through format roll, to reduce the friction of screw rod and storeroom in extrusion, need to be continued to double spiral shells
Feedstock oil is added in bar extruder, raw material oil content in dividing plate is reached 60 ~ 70%；（3）Oil pumping stripping：By the dividing plate after shaping
Carry out oil pumping processing, handle in rear bulkhead raw material oil content 10 ~ 20%, separator porosity is 60 ± 5%；（4）Paint is dried：It will take out
Baffle surface coating anion surfactant after oil, and enter oven drying, make dividing plate water content 2 ~ 4%；（5）Examine hole
Winding：Dividing plate after paint is wound into a roll after optics inspection hole instrument carries out examining hole processing according to regulation length；（6）It is follow-up to add
Work：PE dividing plates cut product is made.
Because the present invention with the addition of glass fibre masterbatch in traditional PE dividing plates, manufactured PE dividing plates reduce resistance, increase
Porosity is added.（1）In battery, electric current flows to negative pole from positive pole to be passed through by electrolyte ion migration and ion diffusion
What dividing plate was carried out, by being referred to as the resistance of dividing plate, resistance is the weight for weighing dividing plate performance quality for spacers block electric current or ion
Factor is wanted, dividing plate resistance is lower, and accumulator drive performance is better.（2）The electrolyte of lead-acid accumulator should be reasonably distributed in just
There are the electrolyte content of abundance and suitable concentration range in dividing plate between negative plates to ensure pole plate in electrochemical reaction.
This is very big on making full use of active material, raising electrical property to influence.For battery, want to obtain optimal electrical property, in not shadow
Ring under mechanical strength, the volume of separator material should be made to reduce to possible small, make dividing plate that there is percent opening as high as possible.（3）Glass
Fiber equally serves as the skeleton of dividing plate with silica in dividing plate.Mutually run through between PE diaphragm internals, glass fibre,
Build, overlap layer by layer each other, form micropore.The addition of fiber, aperture and the porosity of dividing plate are added, reduce dividing plate resistance, increased
The strong starting performance of battery.
In a word, PE dividing plates porous of the present invention, low resistance, there is big puncture, antioxygenic property is preferable, manufactured
Battery starting performance is good, and large current discharging capability is strong.Compared with conventional PE dividing plates, the resistance of dividing plate substantially reduces, porosity
Dramatically increase.Fig. 1 and Fig. 2 are shown in resistance and the porosity contrast of PE dividing plates and conventional separator of the present invention.The resistance of PE dividing plates of the present invention
For 32 ~ 38, and the resistance of conventional separator is 47.5 ~ 57, and resistance reduces a lot；The porosity of PE dividing plates of the present invention is 60 ~ 61.5,
And the porosity of conventional separator is 56.4 ~ 59.2, porosity increases a lot.
Brief description of the drawings
Fig. 1 is PE dividing plates 1# of the present invention and conventional separator 2# resistance comparison diagrams；
Fig. 2 is PE dividing plates 1# of the present invention and conventional separator 2# porosity comparison diagrams.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1：A kind of lead-acid accumulator PE dividing plates, it is made up of following raw material：It is female by weight calculating, glass fibre
Material 80, silica 300, ultra-high molecular weight polyethylene 110, feedstock oil 540, antioxidant 0.8 and carbon black 16.Described glass
Glass fiber master batch is made up of following raw material：By weight calculating, 1.5 ~ 1.9 μm of glass fibre cotton 9.1, extra high molecular amount is gathered
The silica 42 that 7.1,19 ~ 25 μm of ethene, carbon black 1.5 and feedstock oil 55.Described feedstock oil is a kind of mixture, its composition
For following three kinds of materials：Saturated alkane compound, it includes alkane and cycloalkane, adds up to 65% ~ 75%；Aromatic compound：25%
~35%；Polar compound：0~3%；The cyclanes compound is a ring cycloalkane, bicyclic ring alkane, tricyclic naphthenes hydrocarbon, Fourth Ring
Cycloalkane, five rings cycloalkane and six ring cyclanes compounds, wherein, one ~ tricyclic naphthenes hydrocarbon is main component；The aromatic hydrocarbons chemical combination
Thing is alkylbenzene, cycloalkyl benzene, bicyclic alkyl benzene, total mononuclear aromatics, total double ring arene, total thrcylic aromatic hydrocarbon, total four PAH, total
Five PAHs and thiophene compound, using total mononuclear aromatics as Main Ingredients and Appearance；The polar compound is the chain containing N, P, S, O
The material of hydrocarbon, cycloalkane and aromatic hydrocarbons.Described ultra-high molecular weight polyethylene is polyethylene of the molecular weight more than 3,000,000, described
The molecular weight of extra high molecular weight northylen is 50-100 ten thousand polyethylene.
Its preparation method comprises the following steps：
（1）The preparation of glass fibre masterbatch：By 1.5 ~ 1.9 μm of glass fibre cotton of the amount, 19 ~ 25 μm of titanium dioxide
Silicon adds in batch mixer and mixes 10min, and the feedstock oil for adding the amount afterwards continues to mix 8min, is mixed thoroughly it,
Finally the extra high molecular weight northylen and carbon black of the amount are added in mixed material, continue to stir 10min until material mixes
Close uniform.Mixed raw material is transported in extruder by feeder, is extruded into bar, then material is drawn and is granulated into stock-cutter
Glass fibre masterbatch is made.
（2）The preparation of PE dividing plates：By prepared glass fibre masterbatch, silica, ultra-high molecular weight polyethylene, charcoal
Black, antioxidant adds in batch mixer according to the amount and premixes 30min, is slowly added to continue to stir by the feedstock oil of the amount afterwards
Mixing 100min is well mixed material.Well mixed raw material is delivered in double screw extruder by feeder and extruded, then is passed through
Format roll is compressing, to reduce the friction of screw rod and storeroom in extrusion, need to continue to add into double screw extruder
Feedstock oil, raw material oil content in shaped partition is set to reach 70%.Oil pumping processing is carried out to shaped partition afterwards, is handled in rear bulkhead
Raw material oil content is 10%, and product porosity is 60 ± 5%；Anion surfactant is coated in baffle surface afterwards, is done through baking oven
Dry, it is 2% to make dividing plate water content, and the dividing plate after paint is wound after optics inspection hole instrument carries out examining hole processing according to regulation length
In rolls, cut-parts are cut by customer requirement.Manufactured dividing plate resistance is 32m Ω cm2, porosity 61.5%.
Embodiment 2：A kind of lead-acid accumulator PE dividing plates, it is made up of following raw material：It is female by weight calculating, glass fibre
Material 50, silica 260, ultra-high molecular weight polyethylene 80, feedstock oil 490, antioxidant 0.3 and carbon black 10.Described glass
Fiber master batch is made up of following raw material：By weight calculating, 1.5 ~ 1.9 μm of glass fibre cotton 0.9, the poly- second of extra high molecular amount
The silica 34 that 7.1,19 ~ 25 μm of alkene, carbon black 0.6 and feedstock oil 43.Described feedstock oil, ultra-high molecular weight polyethylene and spy
High molecular weight polyethylene is the same as embodiment 1.
Its preparation method comprises the following steps：
（1）The preparation of glass fibre masterbatch：By 1.5 ~ 1.9 μm of glass fibre cotton of the amount, 19 ~ 25 μm of titanium dioxide
Silicon adds in batch mixer and mixes 2min, and the feedstock oil for adding the amount afterwards continues to mix 3min, is mixed thoroughly it, most
The extra high molecular weight northylen and carbon black of the amount are added in mixed material afterwards, continue to stir 5min until material mixing is equal
It is even.Mixed raw material is transported in extruder by feeder, is extruded into bar, then material is drawn into stock-cutter to be granulated and is made
Glass fibre masterbatch.
（2）The preparation of PE dividing plates：By prepared glass fibre masterbatch, silica, ultra-high molecular weight polyethylene, charcoal
Black, antioxidant adds in batch mixer according to the amount and premixes 20min, is slowly added to continue to stir by the feedstock oil of the amount afterwards
Mixing 80min is well mixed material.Well mixed raw material is delivered in double screw extruder by feeder and extruded, then through into
Type roll pressing is molded, and to reduce the friction of screw rod and storeroom in extrusion, need to continue to add original into double screw extruder
Material oil, makes raw material oil content in shaped partition reach 60%, carries out oil pumping processing to dividing plate afterwards, handles oil content in rear bulkhead
For 20%, product porosity is 60 ± 5%；Anion surfactant is coated in baffle surface afterwards, it is aqueous through oven drying, dividing plate
Measure as 4%, the dividing plate after paint being wound into a roll after optics inspection hole instrument carries out examining hole processing according to regulation length, will by customer
Ask cutting cut-parts.Manufactured dividing plate resistance is 38m Ω cm2, porosity 60%.
Embodiment 3：A kind of lead-acid accumulator PE dividing plates, it is made up of following raw material：It is female by weight calculating, glass fibre
Material 65, silica 280, ultra-high molecular weight polyethylene 95, feedstock oil 515, antioxidant 0.55 and carbon black 13.Described glass
Glass fiber master batch is made up of following raw material：By weight calculating, 1.5 ~ 1.9 μm of glass fibre cotton 4.5, extra high molecular amount is gathered
The silica 38 that 6.5,19 ~ 25 μm of ethene, carbon black 1.05 and feedstock oil 49.Described feedstock oil, ultra-high molecular weight polyethylene
With extra high molecular weight northylen with embodiment 1.
Its preparation method comprises the following steps：
（1）The preparation of glass fibre masterbatch：By 1.5 ~ 1.9 μm of glass fibre cotton of the amount, 19 ~ 25 μm of titanium dioxide
Silicon adds in batch mixer and mixes 6min, and the feedstock oil for adding the amount afterwards continues to mix 5min, is mixed thoroughly it, most
The extra high molecular weight northylen and carbon black of the amount are added in mixed material afterwards, continue to stir 8min until material mixing is equal
It is even.Mixed raw material is transported in extruder by feeder, is extruded into bar, then material is drawn into stock-cutter to be granulated and is made
Glass fibre masterbatch.
（2）The preparation of PE dividing plates：By prepared glass fibre masterbatch, silica, ultra-high molecular weight polyethylene, carbon black
Added with antioxidant according to the amount in batch mixer and premix 25min, be slowly added to continue to stir by the feedstock oil of the amount afterwards
Mixing 90min is well mixed material.Well mixed raw material is delivered in double screw extruder by feeder and extruded, then through into
Type roll pressing is molded, and to reduce the friction of screw rod and storeroom in extrusion, need to continue to add original into double screw extruder
Material oil, makes raw material oil content in shaped partition reach 65%, carries out oil pumping processing to dividing plate afterwards, handles oil content in rear bulkhead
For 15%, product porosity is 60 ± 5%；Anion surfactant is coated in baffle surface afterwards, it is aqueous through oven drying, dividing plate
Measure as 3%, the dividing plate after paint being wound into a roll after optics inspection hole instrument carries out examining hole processing according to regulation length, will by customer
Ask cutting cut-parts.Manufactured dividing plate resistance is 35m Ω cm2, porosity 60.75%.
Embodiment 4：A kind of lead-acid accumulator PE dividing plates, it is made up of following raw material：It is female by weight calculating, glass fibre
Material 58, silica 270, ultra-high molecular weight polyethylene 88, feedstock oil 510, antioxidant 0.43 and carbon black 11.5.Described
Glass fibre masterbatch is made up of following raw material：By weight calculating, 1.5 ~ 1.9 μm of glass fibre cotton 2.7, extra high molecular amount
The silica 36 that 6.2,19 ~ 25 μm of polyethylene, carbon black 0.83 and feedstock oil 46.Described feedstock oil, superhigh molecular weight polyethylene
Alkene and extra high molecular weight northylen are the same as embodiment 1.
Its preparation method comprises the following steps：
（1）The preparation of glass fibre masterbatch：By 1.5 ~ 1.9 μm of glass fibre cotton of the amount, 19 ~ 25 μm of titanium dioxide
Silicon adds in batch mixer and mixes 54min, and the feedstock oil for adding the amount afterwards continues to mix 4min, is mixed thoroughly it,
Finally the extra high molecular weight northylen and carbon black of the amount are added in mixed material, continue to stir 7min until material mixes
Uniformly.Mixed raw material is transported in extruder by feeder, is extruded into bar, then material is drawn into stock-cutter the system of granulation
Obtain glass fibre masterbatch.
（2）The preparation of PE dividing plates：By prepared glass fibre masterbatch 58, silica 270, ultra-high molecular weight polyethylene
88th, carbon black 11.5, antioxidant 0.43 are added in batch mixer according to the amount premixes 23min, afterwards by the feedstock oil of the amount
Being slowly added to continue to stir 85min is well mixed material.Well mixed raw material is delivered to twin-screw extrusion by feeder
Extruded in machine, then it is compressing through format roll, to reduce the friction of screw rod and storeroom in extrusion, need to continue to twin-screw
Feedstock oil is added in extruder, raw material oil content in shaped partition is reached 62.5%, carries out oil pumping processing to dividing plate afterwards, is located
It is 17.5% to manage oil content in rear bulkhead, and product porosity is 60 ± 5%；Anion surfactant is coated in baffle surface afterwards,
Through oven drying, dividing plate water content is 3.5%, and the dividing plate after paint through optics inspection hole instrument examine after hole is handled according to the rules
Length is wound into a roll, and cut-parts are cut by customer requirement.Manufactured dividing plate resistance is 36.5m Ω cm2, porosity 60.38%.
Embodiment 5：A kind of lead-acid accumulator PE dividing plates, it is made up of following raw material：It is female by weight calculating, glass fibre
Material 65, silica 290, ultra-high molecular weight polyethylene 102.5, feedstock oil 528, antioxidant 0.68 and carbon black 14.5.It is described
Glass fibre masterbatch be made up of following raw material：By weight calculating, 1.5 ~ 1.9 μm of glass fibre cotton 6.8, extra high molecular
The silica 40 that 6.8,19 ~ 25 μm of weight northylen, carbon black 1.28 and feedstock oil 52.Described feedstock oil, super high molecular weight are gathered
Ethene and extra high molecular weight northylen are the same as embodiment 1.
Its preparation method comprises the following steps：
（1）The preparation of glass fibre masterbatch：By 1.5 ~ 1.9 μm of glass fibre cottons 6.8 and 19 ~ 25 μm of titanium dioxides of the amount
Silicon 40 adds in batch mixer and mixes 8min, and the feedstock oil for adding the amount afterwards continues to mix 7min, is mixed thoroughly it,
Finally the extra high molecular weight northylen and carbon black of the amount are added in mixed material, continue to stir 9min until material mixes
Uniformly.Mixed raw material is transported in extruder by feeder, is extruded into bar, then material is drawn into stock-cutter the system of granulation
Obtain glass fibre masterbatch.
（2）The preparation of PE dividing plates：By prepared glass fibre masterbatch, silica, ultra-high molecular weight polyethylene, charcoal
Black, antioxidant adds in batch mixer according to the amount and premixes 28min, is slowly added to continue to stir by the feedstock oil of the amount afterwards
Mixing 95min is well mixed material.Well mixed raw material is delivered in double screw extruder by feeder and extruded, then through into
Type roll pressing is molded, and to reduce the friction of screw rod and storeroom in extrusion, need to continue to add original into double screw extruder
Material oil, makes raw material oil content in shaped partition reach 67.5%, carries out oil pumping processing to dividing plate afterwards, handles oil in rear bulkhead and contains
Measure as 12.5%, product porosity is 60 ± 5%；Anion surfactant is coated in baffle surface afterwards, through oven drying, dividing plate
Water content is 2.5%, and the dividing plate after paint is wound into a roll after optics inspection hole instrument carries out examining hole processing according to regulation length, pressed
Customer requirement cuts cut-parts.Manufactured dividing plate resistance is 33.5m Ω cm2, porosity 61.13%.
Claims (3)
- A kind of 1. lead-acid accumulator PE dividing plates, it is characterised in that：It is made up of following raw material：By weight calculating, glass fibre Masterbatch 50 ~ 80, silica 260 ~ 300, ultra-high molecular weight polyethylene 80 ~ 110, feedstock oil 490 ~ 540, antioxidant 0.3 ~ 0.8 and carbon black 10 ~ 16；Described glass fibre masterbatch is made up of following raw material：By weight calculating, glass fibre cotton 0.9 ~ 9.1, extra-high point Sub- weight northylen 5.9 ~ 7.1, silica 34 ~ 42, carbon black 0.6 ~ 1.5 and feedstock oil 43 ~ 55；Described feedstock oil is a kind of mixture, and its composition is following three kinds of materials：Saturated alkane compound, it includes alkane and cycloalkane, adds up to 65% ~ 75%, aromatic compound：25% ~ 35% and polarity Compound：0~3%；The cyclanes compound is a ring cycloalkane, bicyclic ring alkane, tricyclic naphthenes hydrocarbon, Fourth Ring cycloalkane, five rings cycloalkane With six ring cyclanes compounds；The aromatic compound is alkylbenzene, cycloalkyl benzene, bicyclic alkyl benzene, total mononuclear aromatics, total double ring arene, total three cyclophane Hydrocarbon, total four PAH, total five PAH and thiophene compound, using total mononuclear aromatics as Main Ingredients and Appearance；The polar compound is the material of the chain hydrocarbon containing N, P, S, O, cycloalkane and aromatic hydrocarbons；It is made up of following methods,A, the preparation of glass fibre masterbatch：（1）Batch mixing：First the silica of the amount and the glass fibre cotton of the amount are added 2 ~ 10min is mixed in batch mixer, the feedstock oil for adding the amount continues 3 ~ 8min of mixing, finally by the extra high molecular of the amount Weight northylen and the carbon black of the amount add, and continue 5 ~ 10min of stirring until material is well mixed；（2）Extruding pelletization：Will mixing Good material is transported in double screw extruder by feeder, is extruded into bar, then material is drawn and is granulated into stock-cutter；B, the preparation of PE dividing plates：（1）Batch mixing：By the glass fibre masterbatch prepared, silica, ultra-high molecular weight polyethylene, Carbon black and antioxidant add according to the amount mixes 20 ~ 30min in batch mixer, the feedstock oil of the amount is added into batch mixing afterwards Continue 80 ~ 100min of mixing in machine, until material is well mixed；（2）Extrusion molding：By the raw material mixed by twin-screw extrusion Machine is extruded, then compressing through format roll, to reduce the friction of screw rod and storeroom in extrusion, need to continue to squeeze to twin-screw Go out and feedstock oil is added in machine, raw material oil content in dividing plate is reached 60 ~ 70%；（3）Oil pumping stripping：Dividing plate after shaping is carried out Oil pumping is handled, and handling raw material oil content in rear bulkhead, 10 ~ 20%, separator porosity is 60 ± 5%；（4）Paint is dried：After pumping Baffle surface coating anion surfactant, and enter oven drying, make dividing plate water content 2 ~ 4%；（5）Examine hole winding： Dividing plate after paint is wound into a roll after optics inspection hole instrument carries out examining hole processing according to regulation length；（6）Following process：By PE Dividing plate cut that product is made.
- 2. lead-acid accumulator PE dividing plates according to claim 1, it is characterised in that：Described antioxidant is antioxidant 300。
- 3. lead-acid accumulator PE dividing plates according to claim 1 or 2, it is characterised in that：The ultra-high molecular weight polyethylene It is polyethylene of the molecular weight more than 3,000,000, the molecular weight of the extra high molecular weight northylen is 50-100 ten thousand polyethylene, institute It is 19 ~ 25 μm to state silica average grain diameter, a diameter of 1.5 ~ 1.9 μm of described glass fibre cotton.
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| CN106129304A (en) * | 2016-07-20 | 2016-11-16 | 镇江奥美机电设备有限公司 | The production technology of lead-acid accumulator PE division board |
| CN106067527A (en) * | 2016-07-20 | 2016-11-02 | 镇江奥美机电设备有限公司 | The production system of lead-acid accumulator PE division board |
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| CN107216528A (en) * | 2017-07-20 | 2017-09-29 | 安徽杰蓝特新材料有限公司 | Ultra micro glass cotton applied to HDPE double-wall corrugated pipes strengthens agglomerate preparation method |
| CN107216527A (en) * | 2017-07-20 | 2017-09-29 | 安徽杰蓝特新材料有限公司 | A kind of ultra micro glass cotton applied to HDPE double-wall corrugated pipes strengthens master batch |
| US20200313135A1 (en) * | 2017-09-08 | 2020-10-01 | Daramic, Llc | Improved lead acid battery separators incorporating carbon, and improved batteries, systems, vehicles, and related methods |
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| CN114161597A (en) * | 2021-11-02 | 2022-03-11 | 镇江泰舸电池隔膜科技有限公司 | Quantitative determination method for high-speed mixing of PE (polyethylene) partition plates |
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