CN107236144A - It is a kind of to be used to process mould release membrance combination of battery grade lithium band and preparation method thereof - Google Patents
It is a kind of to be used to process mould release membrance combination of battery grade lithium band and preparation method thereof Download PDFInfo
- Publication number
- CN107236144A CN107236144A CN201710623919.XA CN201710623919A CN107236144A CN 107236144 A CN107236144 A CN 107236144A CN 201710623919 A CN201710623919 A CN 201710623919A CN 107236144 A CN107236144 A CN 107236144A
- Authority
- CN
- China
- Prior art keywords
- mould release
- release membrance
- silicon layer
- lithium band
- base layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of mould release membrance combination for being used to process battery grade lithium band and preparation method thereof.Mould release membrance for processing battery grade lithium band is combined, including the first mould release membrance and the second mould release membrance；First mould release membrance includes silicon layer and base layer connected in order, or the first mould release membrance includes silicon layer connected in order, acrylic acid priming coat and base layer；Second mould release membrance includes silicon layer and base layer connected in order, or the second mould release membrance includes silicon layer connected in order, acrylic acid priming coat and base layer；The surface roughness of first mould release membrance silicon layer is less than the surface roughness of the second mould release membrance silicon layer.The present invention is used for the mould release membrance combination for processing battery grade lithium band, plays a part of buffering and protecting lithium band in processing, prevents lithium band from producing adhesion in process and causing broken belt；The lithium band composite membrane excellent performance prepared by it.
Description
Technical field
The present invention relates to a kind of mould release membrance combination for being used to process battery grade lithium band and preparation method thereof, belong to lithium-ion electric
Pond production field.
Background technology
Secondary cell using lithium as negative electrode active material is because with voltage height, specific energy height, specific power is big, electric discharge is flat
Surely, storage time length and advantages of environment protection and be taken seriously.Lithium at normal temperatures easily with the O in air2、N2And H2O etc. is anti-
Should, and in processing, easily adhesion occur causes broken belt to battery grade lithium band.
The content of the invention
In order to solve battery grade lithium band in the prior art, in processing, easily adhesion occur causes the defects such as broken belt, and the present invention is carried
The lithium band composite membrane prepared for a kind of mould release membrance combination for being used to process battery grade lithium band and by it.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：
A kind of mould release membrance combination for being used to process battery grade lithium band, including the first mould release membrance and the second mould release membrance；First from
Type film includes silicon layer and base layer connected in order, or the first mould release membrance includes silicon layer connected in order, acrylic acid primary coat
Layer and base layer；Second mould release membrance includes silicon layer and base layer connected in order, or the second mould release membrance including connected in order
Silicon layer, acrylic acid priming coat and base layer；The surface roughness of first mould release membrance silicon layer is less than the second mould release membrance silicon layer
Surface roughness.
Acrylic acid priming coat is made by acrylic compounds silane coupling agent.
In use, being that silicon layer is contacted with lithium band to be processed.
When processing lithium band, the first mould release membrance and the second mould release membrance are respectively placed in the both sides of lithium band to be processed, pass through silicone oil
Layer fits together with lithium band, to play preferable cushioning and protection to lithium band to be processed.After process finishing, first from
Type film is peeled off with lithium band formation lithium band composite membrane, the second mould release membrance with lithium band and the lithium band composite membrane of the first mould release membrance formation.
The surface roughness of silicon layer is less than the surface roughness of silicon layer in the second mould release membrance in first mould release membrance, so that
So that the absorption affinity between the first mould release membrance and lithium band to be processed is more than the absorption between the second mould release membrance and lithium band to be processed
Power, then after process finishing, the first mould release membrance can be attached with lithium band, and the second mould release membrance can be easily peelable without viscous from lithium band
Lithium band.
Above-mentioned mould release membrance combination is played a part of buffering and protecting lithium band in processing.
To be further ensured that the thickness of acrylic acid priming coat in the flatness of matrix layer surface, the first mould release membrance is 0~0.1
μm；The thickness of acrylic acid priming coat is 0~0.1 μm in second mould release membrance.
In order to further improve the protecting effect to lithium band, base layer is PET matrix layer, PP base layers, Ge Laxin matrixes
Layer or non-woven fabrics base layer；The thickness of base layer is 5 μm~150 μm.Further preferably, base layer is PET matrix layer；Base layer
Thickness be 12 μm~50 μm.
The polyethylene terephthalate abbreviation that above-mentioned PET is, PP is polyacrylic abbreviation.
Prepare for convenience, while ensureing the protecting effect to lithium band, the surface roughness of the first mould release membrance silicon layer is
0.001-0.05 μm, the surface roughness of the second mould release membrance silicon layer is 0.05-0.3 μm.
It is residual in order to which the off-type force for being further ensured that silicon layer in the quality of lithium band, the first mould release membrance is 7g/in~30g/in
Remaining then rate is 60%~100%, and coating weight (dry silicon amount) is 0.05g/m2~1.5g/m2；In second mould release membrance silicon layer from
Type power is 2g/in~10g/in, and remaining then rate is 40%~80%, and coating weight (dry silicon amount) is 0.4g/m2~2.0g/m2.Enter
Preferably, the off-type force of silicon layer is 8g/in~12g/in to one step in the first mould release membrance, and remaining then rate is 85%~95%, is applied
Cloth amount (dry silicon amount) is 0.1g/m2~0.3g/m2；The off-type force of silicon layer is 4g/in~6g/in in second mould release membrance, and remnants connect
It is 50%~70% rate, and coating weight (dry silicon amount) is 0.8g/m2~1.2g/m2。
In order to improve stripping and the barrier propterty of mould release membrance, the silicon layer raw material of the first mould release membrance includes：Silicone oil host 5~
20 parts, 80~100 parts of solvent naphtha, 0~5 part of peeling force additive, 0~0.1 part of crosslinking agent, 0~0.1 part of catalyst and Anchor Agent
0~0.1 part, the number is mass fraction；The silicon layer raw material of second mould release membrance includes：25~50 parts of silicone oil host, solvent
0~0.5 part of 50~80 parts of oil, 0~15 part of peeling force additive, 0~0.5 part of crosslinking agent, 0~0.5 part of catalyst and Anchor Agent,
The number is mass fraction.
In order to further take into account stripping and barrier propterty, silicone oil host is reactive siloxane polymer；Solvent naphtha is first
At least one of benzene, dimethylbenzene, 120# solvent naphthas, ethyl acetate, butyl acetate or n-hexane；Peeling force additive is silicone
Resin solution；Crosslinking agent is SiH functional silicones；Catalyst is organo-platinic compounds；Anchor Agent is compound organic functional silica
Alkane.
Above-mentioned silicon layer is prepared as：After each raw material components of silicon layer are well mixed, matrix is coated on by applicator roll
On layer or acrylic acid priming coat, it is heating and curing and forms；Acrylic acid priming coat is prepared as：Applicator roll is passed through by acrylic compounds glue
It is coated on base layer, is heating and curing and forms；The curing of the solidification of silicon layer and the curing phase of acrylic acid priming coat
Together, carry out as follows：Eight areas for including connecting successively in completion, baking oven in baking oven are solidificated in, wherein, the firstth area
Solidification temperature be 75 ± 5 DEG C, the solidification temperature in the secondth area is 95 ± 5 DEG C, and the solidification temperature in the 3rd area is 120 ± 5 DEG C, the 4th
The solidification temperature in area is 130-150 DEG C, and the solidification temperature in the 5th area is 130-150 DEG C, and the solidification temperature in the 6th area is 125 ± 5
DEG C, the solidification temperature of SECTOR-SEVEN is 120 ± 5 DEG C, and the solidification temperature of Section Eight is 100 ± 5 DEG C, and during solidification, material was with 60-72 seconds
Section Eight is at the uniform velocity flowed to successively from the firstth area, and the length in each area is 3 ± 0.1m.When containing acrylic acid priming coat, first will
After the solidification of acrylic acid priming coat, silicon layer is coated with, then again solidifies silicon layer in the mode same with acrylic acid priming coat.
The NM technology of the present invention is with reference to prior art.
The present invention is used for the mould release membrance combination for processing battery grade lithium band, and the work of buffering and protection lithium band is played in processing
With preventing lithium band from producing adhesion in process and causing broken belt；The lithium band composite membrane excellent performance prepared by it；Preparation method
Simply.
Brief description of the drawings
When Fig. 1 is processing lithium band, mould release membrance is applied in combination mode and illustrated；
Fig. 2 is the first mould release membrance structural representation without priming coat；
Fig. 3 is the first mould release membrance structural representation with priming coat；
Fig. 4 is the second mould release membrance structural representation without priming coat；
Fig. 5 is the second mould release membrance structural representation with priming coat；
In above-mentioned each figure, 1 is base layer, and 2 be silicon layer, and 3 be priming coat, and 4 be lithium band composite membrane, and 5 be the first mould release membrance,
6 be the second mould release membrance, and 7 be lithium band to be processed.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.
Embodiment 1
As schemed, the mould release membrance for processing battery grade lithium band is combined, and the first mould release membrance and the second mould release membrance are by order phase
Silicon layer, acrylic acid priming coat and the base layer connect is constituted；Wherein, the off-type force of silicon layer is 30g/in in the first mould release membrance,
Remaining then rate is 60%, and coating weight (dry silicon amount) is 0.05g/m2, the off-type force of silicon layer is 10g/in in the second mould release membrance,
Remaining then rate is 40%, and coating weight (dry silicon amount) is 0.4g/m2；Base layer is PET, and thickness is 12 μm；First mould release membrance and
The thickness of acrylic acid priming coat is 0.02 μm in second mould release membrance；The surface roughness of first mould release membrance silicon layer is 0.001 μ
M, the surface roughness of the second mould release membrance silicon layer is 0.05 μm.
In the raw material of above-mentioned first mould release membrance silicon layer, silicone oil host addition is 5 parts, solvent naphtha addition is 99 parts,
Peeling force additive addition is 5 parts, crosslinking agent addition is 0.03 part, catalyst loading is 0.02 part, Anchor Agent addition
Measure as 0.01 part.Solvent naphtha is 120# solvent naphthas, and silicone oil host is reactive siloxane polymer (Dow Corning Corporation, 7558),
Peeling force additive be silicone resin solution (Dow Corning Corporation, 7210), crosslinking agent be SiH functional silicones (Dow Corning Corporation,
7387), catalyst is organo-platinic compounds (Dow Corning Corporation, 4000), and Anchor Agent is compound organofunctional silicone (DOW CORNING
Company, 9176)；
In the raw material of second mould release membrance silicon layer, silicone oil host addition is 25 parts, solvent naphtha addition is 80 parts, stripping
Power additive addition is 15 parts, crosslinking agent addition is 0.3 part, catalyst loading is 0.2 part, Anchor Agent addition is
0.1 part.Solvent naphtha is 120# solvent naphthas, and silicone oil host is reactive siloxane polymer (Dow Corning Corporation, 7362), peeling force
Additive is silicone resin solution (Dow Corning Corporation, 7210), and crosslinking agent is SiH functional silicones (Dow Corning Corporation, 7028),
Catalyst is organo-platinic compounds (Dow Corning Corporation, 4000), Anchor Agent be compound organofunctional silicone (Dow Corning Corporation,
297)；
Above-mentioned silicon layer is prepared as：After each raw material components of silicon layer are well mixed, propylene is coated on by applicator roll
On sour priming coat, it is heating and curing and forms；Acrylic acid priming coat is prepared as：By (the 7361 Changxing material industries of acrylic compounds glue
Limited company) it is coated on by applicator roll on base layer, it is heating and curing and forms；The curing of the solidification of silicon layer and third
The curing of olefin(e) acid priming coat is identical, carries out as follows：Being solidificated in baking oven includes phase successively in completion, baking oven
Eight areas connect, wherein, the solidification temperature in the firstth area is 75 DEG C, and the solidification temperature in the secondth area is 95 DEG C, the solidification temperature in the 3rd area
Spend for 120 DEG C, the solidification temperature in the 4th area is 130 DEG C, and the solidification temperature in the 5th area is 130 DEG C, and the solidification temperature in the 6th area is
125 DEG C, the solidification temperature of SECTOR-SEVEN is 120 DEG C, and the solidification temperature of Section Eight is 100 DEG C, and during solidification, material was with 60 seconds from first
Area at the uniform velocity flows to Section Eight successively, and the length in each area is 3m.After first acrylic acid priming coat is solidified, silicon layer is coated with,
Then silicon layer is solidified in the mode same with acrylic acid priming coat again.
Embodiment 2
As schemed, the mould release membrance for processing battery grade lithium band is combined, and the first mould release membrance and the second mould release membrance are by order phase
Silicon layer, acrylic acid priming coat and the base layer connect is constituted；Wherein, the off-type force of silicon layer is 10g/in in the first mould release membrance,
Remaining then rate is 90%, and coating weight (dry silicon amount) is 0.2g/m2, the off-type force of silicon layer is 5g/in in the second mould release membrance, residual
Remaining then rate is 50%, and coating weight (dry silicon amount) is 1.0g/m2, base layer is PET, and thickness is 36 μm；First mould release membrance and
The thickness of acrylic acid priming coat is 0.05 μm in two mould release membrances；The surface roughness of first mould release membrance silicon layer is 0.01 μm,
The surface roughness of second mould release membrance silicon layer is 0.1 μm.
In the raw material of first mould release membrance silicon layer, silicone oil host addition is 10 parts, solvent naphtha addition is 90 parts, stripping
Power additive addition is 2.5 parts, crosslinking agent addition is 0.05 part, catalyst loading is 0.04 part, Anchor Agent addition
For 0.03 part.Solvent naphtha is 120# solvent naphthas, and silicone oil host is reactive siloxane polymer (Dow Corning Corporation, 7458), stripping
From power additive be silicone resin solution (Dow Corning Corporation, 7210), crosslinking agent be SiH functional silicones (Dow Corning Corporation,
7672), catalyst is organo-platinic compounds (Dow Corning Corporation, 4000), and Anchor Agent is compound organofunctional silicone (DOW CORNING
Company, 9250)；
In the raw material of second mould release membrance silicon layer, silicone oil host addition is 35 parts, solvent naphtha addition is 70 parts, stripping
Power additive addition is 7 parts, crosslinking agent addition is 0.3 part, catalyst loading is 0.2 part, Anchor Agent addition is 0.1
Part.Solvent naphtha is 120# solvent naphthas, and silicone oil host is reactive siloxane polymer (Dow Corning Corporation, 9106), and peeling force adds
Plus agent is silicone resin solution (Dow Corning Corporation, 7210), crosslinking agent is SiH functional silicones (Dow Corning Corporation, 7387), is urged
Agent is organo-platinic compounds (Dow Corning Corporation, 4000), Anchor Agent be compound organofunctional silicone (Dow Corning Corporation,
9176)；
Above-mentioned silicon layer is prepared as：After each raw material components of silicon layer are well mixed, propylene is coated on by applicator roll
On sour priming coat, it is heating and curing and forms；Acrylic acid priming coat is prepared as：By (the 7361 Changxing material industries of acrylic compounds glue
Limited company) it is coated on by applicator roll on base layer, it is heating and curing and forms；The curing of the solidification of silicon layer and third
The curing of olefin(e) acid priming coat is identical, carries out as follows：Being solidificated in baking oven includes phase successively in completion, baking oven
Eight areas connect, wherein, the solidification temperature in the firstth area is 75 DEG C, and the solidification temperature in the secondth area is 95 DEG C, the solidification temperature in the 3rd area
Spend for 120 DEG C, the solidification temperature in the 4th area is 135 DEG C, and the solidification temperature in the 5th area is 135 DEG C, and the solidification temperature in the 6th area is
125 DEG C, the solidification temperature of SECTOR-SEVEN is 120 DEG C, and the solidification temperature of Section Eight is 100 DEG C, and during solidification, material was with 65 seconds from first
Area at the uniform velocity flows to Section Eight successively, and the length in each area is 3m.After first acrylic acid priming coat is solidified, silicon layer is coated with,
Then silicon layer is solidified in the mode same with acrylic acid priming coat again.
Embodiment 3
A kind of mould release membrance combination for being used to process battery grade lithium band as Figure 1-5, the first mould release membrance and second release
Film is constituted by silicon layer connected in order, acrylic acid priming coat and base layer；Wherein, in the first mould release membrance silicon layer it is release
Power is 7g/in, and remaining then rate is 99%, and coating weight (dry silicon amount) is 0.3g/m2, the off-type force of silicon layer in the second mould release membrance
For 2g/in, remaining then rate is 80%, and coating weight (dry silicon amount) is 2.0g/m2, base layer is PET, and thickness is 50 μm；First
The thickness of acrylic acid priming coat is 0.08 μm in mould release membrance and the second mould release membrance；The surface roughness of first mould release membrance silicon layer
For 0.05 μm, the surface roughness of the second mould release membrance silicon layer is 0.3 μm.
In the raw material of first mould release membrance silicon layer, silicone oil host addition is 20 parts, solvent naphtha addition is 80 parts, stripping
Power additive addition is 0 part, crosslinking agent addition is 0.1 part, catalyst loading is 0.1 part, Anchor Agent addition is 0.1
Part.Solvent naphtha is 120# solvent naphthas, and silicone oil host is reactive siloxane polymer (Wa Ke groups, D955), peeling force addition
Agent is silicone resin solution (Wa Ke groups, CRA21), and crosslinking agent is SiH functional silicones (Wa Ke groups, V99), and catalyst is
Organo-platinic compounds (Wa Ke groups, C05), Anchor Agent is compound organofunctional silicone (Wa Ke groups, HF86)；
Second mould release membrance silicon layer silicone oil host addition is 25 parts, solvent naphtha addition is 50 parts, peeling force additive
Addition be 0, crosslinking agent addition be 0.3 part, catalyst loading be 0.2 part, Anchor Agent addition be 0.1 part.Solvent naphtha
For 120# solvent naphthas, silicone oil host is reactive siloxane polymer (Wa Ke groups, D929), and peeling force additive is silicone tree
Lipoprotein solution (Wa Ke groups, CRA21), crosslinking agent is SiH functional silicones (Wa Ke groups, V60), and catalyst is organic platinum chemical combination
Thing (Wa Ke groups, C05), Anchor Agent is compound organofunctional silicone (Wa Ke groups, HF87)；
Above-mentioned silicon layer is prepared as：After each raw material components of silicon layer are well mixed, propylene is coated on by applicator roll
On sour priming coat, it is heating and curing and forms；Acrylic acid priming coat is prepared as by acrylic compounds glue (7361 Changxing material industries stocks
Part Co., Ltd) it is coated on by applicator roll on base layer, it is heating and curing and forms；The curing and propylene of the solidification of silicon layer
The curing of sour priming coat is identical, carries out as follows：Being solidificated in baking oven in completion, baking oven includes connecting successively
Eight areas, wherein, the solidification temperature in the firstth area is 75 DEG C, and the solidification temperature in the secondth area is 95 DEG C, the solidification temperature in the 3rd area
For 120 DEG C, the solidification temperature in the 4th area is 140 DEG C, and the solidification temperature in the 5th area is 140 DEG C, and the solidification temperature in the 6th area is 125
DEG C, the solidification temperature of SECTOR-SEVEN is 120 DEG C, and the solidification temperature of Section Eight is 100 DEG C, during solidification, and material is with 62 seconds from the firstth area
Section Eight is at the uniform velocity flowed to successively, and the length in each area is 3m.After first acrylic acid priming coat is solidified, silicon layer is coated with, so
Silicon layer is solidified in the mode same with acrylic acid priming coat again afterwards.
When processing lithium band, the first mould release membrance and the second mould release membrance are respectively placed in the both sides of lithium band to be processed, pass through silicone oil
Layer fits together with lithium band, after process finishing, the first mould release membrance and lithium band formation lithium band composite membrane, the second mould release membrance and lithium band
Peeled off with the lithium band composite membrane of the first mould release membrance formation.
Off-type force uses FINAT standard testings, and Tesa7475 adhesive tapes (wide 25mm), 180 degree is peeled off.
Remaining then rate uses FINAT standard testings, and day east 31B adhesive tapes (wide 25mm), 180 degree is peeled off.
Dry silicon amount is measured using coating weight test machine OX-FORD-3500.
Table 1
In table 1, easily peelable finger mould release membrance is easily peelable, and when lithium band composite membrane is attached on electrode, the first mould release membrance is shelled
From.
Claims (10)
1. a kind of mould release membrance combination for being used to process battery grade lithium band, it is characterised in that：It is release including the first mould release membrance and second
Film；First mould release membrance includes silicon layer and base layer connected in order, or the first mould release membrance includes silicon layer connected in order, third
Olefin(e) acid priming coat and base layer；Second mould release membrance includes silicon layer and base layer connected in order, or the second mould release membrance including suitable
Silicon layer, acrylic acid priming coat and base layer that sequence connects；It is release that the surface roughness of first mould release membrance silicon layer is less than second
The surface roughness of film silicon layer.
2. the mould release membrance combination as claimed in claim 1 for being used to process battery grade lithium band, it is characterised in that：In first mould release membrance
The thickness of acrylic acid priming coat is 0~0.1 μm；The thickness of acrylic acid priming coat is 0~0.1 μm in second mould release membrance.
3. the mould release membrance combination as claimed in claim 1 or 2 for being used to process battery grade lithium band, it is characterised in that：Base layer is
PET matrix layer, PP base layers, Ge Laxin base layers or non-woven fabrics base layer；The thickness of base layer is 5 μm~150 μm.
4. the mould release membrance combination as claimed in claim 3 for being used to process battery grade lithium band, it is characterised in that：Base layer is PET
Base layer；The thickness of base layer is 12 μm~50 μm.
5. the mould release membrance combination as claimed in claim 1 or 2 for being used to process battery grade lithium band, it is characterised in that：First is release
The surface roughness of film silicon layer is 0.001-0.05 μm, and the surface roughness of the second mould release membrance silicon layer is 0.05-0.3 μm.
6. the mould release membrance combination as claimed in claim 1 or 2 for being used to process battery grade lithium band, it is characterised in that：First is release
The off-type force of silicon layer is 7g/in~30g/in in film, and remaining then rate is 60%~100%, and coating weight (dry silicon amount) is
0.05g/m2~1.5g/m2；The off-type force of silicon layer is 2g/in~10g/in in second mould release membrance, remaining then rate is 40%~
80%, coating weight (dry silicon amount) is 0.4g/m2~2.0g/m2。
7. the mould release membrance combination as claimed in claim 6 for being used to process battery grade lithium band, it is characterised in that：In first mould release membrance
The off-type force of silicon layer is 8g/in~12g/in, and remaining then rate is 85%~95%, and coating weight (dry silicon amount) is 0.1g/m2
~0.3g/m2；The off-type force of silicon layer is 4g/in~6g/in in second mould release membrance, and remaining then rate is 50%~70%, is applied
Cloth amount (dry silicon amount) is 0.8g/m2~1.2g/m2。
8. the mould release membrance combination as claimed in claim 1 or 2 for being used to process battery grade lithium band, it is characterised in that：
The silicon layer raw material of first mould release membrance includes：5~20 parts of silicone oil host, 80~100 parts of solvent naphtha, peeling force additive 0
0~0.1 part of~5 parts, 0~0.1 part of crosslinking agent, 0~0.1 part of catalyst and Anchor Agent, the number are mass fraction；
The silicon layer raw material of second mould release membrance includes：25~50 parts of silicone oil host, 50~80 parts of solvent naphtha, peeling force additive 0
0~0.5 part of~15 parts, 0~0.5 part of crosslinking agent, 0~0.5 part of catalyst and Anchor Agent, the number are mass fraction.
9. the mould release membrance combination as claimed in claim 8 for being used to process battery grade lithium band, it is characterised in that：Silicone oil host is anti-
Answering property siloxane polymer；Solvent naphtha is in toluene, dimethylbenzene, 120# solvent naphthas, ethyl acetate, butyl acetate or n-hexane
It is at least one；Peeling force additive is silicone resin solution；Crosslinking agent is SiH functional silicones；Catalyst is organic platinum chemical combination
Thing；Anchor Agent is compound organofunctional silicone.
10. being used for described in claim 1-9 any one processes the preparation method of the mould release membrance combination of battery grade lithium band, it is special
Levy and be：Silicon layer is prepared as：After each raw material components of silicon layer are well mixed, base layer or third are coated on by applicator roll
On olefin(e) acid priming coat, it is heating and curing and forms；Acrylic acid priming coat is prepared as：It is coated on by acrylic compounds glue by applicator roll
On base layer, it is heating and curing and forms；The curing of the solidification of silicon layer is identical with the curing of acrylic acid priming coat, presses
Carried out according to following method：Eight areas for including connecting successively in completion, baking oven in baking oven are solidificated in, wherein, the solidification in the firstth area
Temperature is 75 ± 5 DEG C, and the solidification temperature in the secondth area is 95 ± 5 DEG C, and the solidification temperature in the 3rd area is 120 ± 5 DEG C, and the 4th area consolidates
It is 130-150 DEG C to change temperature, and the solidification temperature in the 5th area is 130-150 DEG C, and the solidification temperature in the 6th area is 125 ± 5 DEG C, the 7th
The solidification temperature in area is 120 ± 5 DEG C, and the solidification temperature of Section Eight is 100 ± 5 DEG C, and during solidification, material was with 60-72 seconds from first
Area at the uniform velocity flows to Section Eight successively, and the length in each area is 3 ± 0.1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710623919.XA CN107236144A (en) | 2017-07-27 | 2017-07-27 | It is a kind of to be used to process mould release membrance combination of battery grade lithium band and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710623919.XA CN107236144A (en) | 2017-07-27 | 2017-07-27 | It is a kind of to be used to process mould release membrance combination of battery grade lithium band and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107236144A true CN107236144A (en) | 2017-10-10 |
Family
ID=59989793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710623919.XA Pending CN107236144A (en) | 2017-07-27 | 2017-07-27 | It is a kind of to be used to process mould release membrance combination of battery grade lithium band and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107236144A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587512A (en) * | 2018-01-31 | 2018-09-28 | 深圳市鑫亚凯立科技有限公司 | A kind of polypropylene release film of high tenacity high stretch |
| CN108977112A (en) * | 2018-06-28 | 2018-12-11 | 张家港康得新光电材料有限公司 | A kind of silica gel and its protective film |
| CN109991162A (en) * | 2019-04-15 | 2019-07-09 | 深圳市普利司德高分子材料有限公司 | A kind of FINAT remnants then rate test method |
| CN110499058A (en) * | 2018-05-18 | 2019-11-26 | 新纶科技（常州）有限公司 | A kind of light release or ultralight release film parting agent |
| WO2021012934A1 (en) * | 2019-07-22 | 2021-01-28 | 宁德时代新能源科技股份有限公司 | Device for supplementing electrode sheet with lithium and method for supplementing electrode sheet with lithium |
| CN113134132A (en) * | 2020-01-20 | 2021-07-20 | 烟台华运新材料科技有限公司 | Release paper applied to medical indwelling needle patch |
| WO2022073422A1 (en) * | 2020-10-06 | 2022-04-14 | 江苏双星彩塑新材料股份有限公司 | Release film base material and preparation method therefor |
| CN114597331A (en) * | 2020-12-03 | 2022-06-07 | 天津中能锂业有限公司 | Ultrathin lithium film complex and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329927A (en) * | 2008-07-17 | 2008-12-24 | 友达光电（苏州）有限公司 | Conducting adhesive tape off film and conducting adhesive tape |
| CN105949488A (en) * | 2016-05-18 | 2016-09-21 | 东莞市惟实电子材料科技有限公司 | Release film without iridescent textures and preparation method of release film |
| CN106025367A (en) * | 2016-07-14 | 2016-10-12 | 广东基泰智能设备有限公司 | All-in-one machine for rolling, laminating and lithium-supplementing |
| CN106221595A (en) * | 2016-07-21 | 2016-12-14 | 苏州泰仑电子材料有限公司 | Mould release membrance of ultralight off-type force and preparation method thereof |
| US20170145256A1 (en) * | 2014-06-27 | 2017-05-25 | Dow Corning Corporation | Silicone release coating composition and low release force emulsion silicone release coating for films and papers having cured release coating |
-
2017
- 2017-07-27 CN CN201710623919.XA patent/CN107236144A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329927A (en) * | 2008-07-17 | 2008-12-24 | 友达光电（苏州）有限公司 | Conducting adhesive tape off film and conducting adhesive tape |
| US20170145256A1 (en) * | 2014-06-27 | 2017-05-25 | Dow Corning Corporation | Silicone release coating composition and low release force emulsion silicone release coating for films and papers having cured release coating |
| CN105949488A (en) * | 2016-05-18 | 2016-09-21 | 东莞市惟实电子材料科技有限公司 | Release film without iridescent textures and preparation method of release film |
| CN106025367A (en) * | 2016-07-14 | 2016-10-12 | 广东基泰智能设备有限公司 | All-in-one machine for rolling, laminating and lithium-supplementing |
| CN106221595A (en) * | 2016-07-21 | 2016-12-14 | 苏州泰仑电子材料有限公司 | Mould release membrance of ultralight off-type force and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 包亦望: "《先进陶瓷力学性能评价方法与技术》", 30 June 2017 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108587512A (en) * | 2018-01-31 | 2018-09-28 | 深圳市鑫亚凯立科技有限公司 | A kind of polypropylene release film of high tenacity high stretch |
| CN110499058A (en) * | 2018-05-18 | 2019-11-26 | 新纶科技（常州）有限公司 | A kind of light release or ultralight release film parting agent |
| CN108977112A (en) * | 2018-06-28 | 2018-12-11 | 张家港康得新光电材料有限公司 | A kind of silica gel and its protective film |
| CN109991162A (en) * | 2019-04-15 | 2019-07-09 | 深圳市普利司德高分子材料有限公司 | A kind of FINAT remnants then rate test method |
| WO2021012934A1 (en) * | 2019-07-22 | 2021-01-28 | 宁德时代新能源科技股份有限公司 | Device for supplementing electrode sheet with lithium and method for supplementing electrode sheet with lithium |
| EP3955334A4 (en) * | 2019-07-22 | 2022-06-22 | Contemporary Amperex Technology Co., Limited | Device for supplementing electrode sheet with lithium and method for supplementing electrode sheet with lithium |
| CN113134132A (en) * | 2020-01-20 | 2021-07-20 | 烟台华运新材料科技有限公司 | Release paper applied to medical indwelling needle patch |
| WO2022073422A1 (en) * | 2020-10-06 | 2022-04-14 | 江苏双星彩塑新材料股份有限公司 | Release film base material and preparation method therefor |
| CN114597331A (en) * | 2020-12-03 | 2022-06-07 | 天津中能锂业有限公司 | Ultrathin lithium film complex and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107236144A (en) | It is a kind of to be used to process mould release membrance combination of battery grade lithium band and preparation method thereof | |
| CN107312471A (en) | A kind of antistatic protection film and its manufacture method | |
| CN102816538A (en) | Heavy-release force release film having surface microviscosity and preparation method thereof | |
| JP2009046647A (en) | Polyester film excellent in peeling-strength stability with time and manufacturing method thereof | |
| CN101323760A (en) | Double-sided pressure-sensitive adhesive tape or sheet and wiring circuit board having the double-sided pressure-sensitive adhesive tape | |
| KR101831939B1 (en) | Swelling tape comprising polyurethane flim and method for manufacturing same | |
| JP6517451B2 (en) | Method for producing double-sided silicone adhesive sheet | |
| CN107614639A (en) | Adhesive sheet | |
| CN106553395A (en) | The excellent mould release membrance of fissility | |
| TWI778311B (en) | Release film having excellent peelability | |
| CN101594993A (en) | Surface protection film | |
| CN106833419A (en) | A kind of two-sided difference type adhesive tape and its production method | |
| CN107530918A (en) | Demoulding adhesive tape | |
| CN109609051A (en) | A kind of preparation method of high temperature resistant grid acrylic pressure sensitive adhesive tape | |
| CN207159127U (en) | A kind of mould release membrance combination for being used to process battery grade lithium band and the lithium band composite membrane prepared by it | |
| JPS6116839A (en) | Manufacture of release paper | |
| CN105802524A (en) | Pressure-sensitive adhesive sheet, method of using pressure-sensitive adhesive sheet, and precision electronic device | |
| JP2019081376A (en) | Release film having good releasability | |
| CN105778804A (en) | Preparation method for double-layer PET protective film for lithium battery pack | |
| CN105086913A (en) | Adhesive composition | |
| CN110283566B (en) | Solvent-free silicone pressure-sensitive adhesive and preparation and application thereof | |
| CN108373889A (en) | The excellent exhaust acrylic protective film of one kind and its production method | |
| JP6204132B2 (en) | Release sheet and adhesive sheet | |
| CN110962411A (en) | Metal lithium belt capable of being coated and processed by coating machine and preparation method thereof | |
| CN104640948B (en) | Electronic building brick double-sided adhesive sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |