CN107266060A - A kind of NFC antifreeze plates and preparation method thereof - Google Patents
A kind of NFC antifreeze plates and preparation method thereof Download PDFInfo
- Publication number
- CN107266060A CN107266060A CN201710439840.1A CN201710439840A CN107266060A CN 107266060 A CN107266060 A CN 107266060A CN 201710439840 A CN201710439840 A CN 201710439840A CN 107266060 A CN107266060 A CN 107266060A
- Authority
- CN
- China
- Prior art keywords
- nfc
- weight
- parts
- ball
- ferrite powder
- 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.)
- Granted
Links
- 230000002528 anti-freeze Effects 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 28
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 12
- 239000003960 organic solvent Substances 0.000 claims abstract description 11
- 229920002635 polyurethane Polymers 0.000 claims abstract description 10
- 150000001298 alcohols Chemical group 0.000 claims abstract description 6
- 239000002270 dispersing agent Substances 0.000 claims abstract description 6
- 239000004014 plasticizer Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 150000002148 esters Chemical class 0.000 claims abstract description 3
- 150000002576 ketones Chemical class 0.000 claims abstract description 3
- 239000012046 mixed solvent Substances 0.000 claims abstract description 3
- 238000000498 ball milling Methods 0.000 claims description 15
- 229910001308 Zinc ferrite Inorganic materials 0.000 claims description 11
- KOMIMHZRQFFCOR-UHFFFAOYSA-N [Ni].[Cu].[Zn] Chemical group [Ni].[Cu].[Zn] KOMIMHZRQFFCOR-UHFFFAOYSA-N 0.000 claims description 10
- 238000007766 curtain coating Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 235000019441 ethanol Nutrition 0.000 claims description 5
- 239000006255 coating slurry Substances 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- 238000009288 screen filtration Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims 1
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2666—Other ferrites containing nickel, copper or cobalt
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62625—Wet mixtures
- C04B35/6264—Mixing media, e.g. organic solvents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63456—Polyurethanes; Polyisocyanates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
- Magnetic Ceramics (AREA)
Abstract
The invention discloses a kind of NFC antifreeze plates, including by weight：100 parts of ferrite powder；3~15 parts of binding agent；1~5 part of plasticizer；30~120 parts of organic solvent；0.1~2.5 part of dispersant；The organic solvent is alcohols solvent, esters solvent, the one or more kinds of mixed solvents of ketone, and the binding agent is polyurethane class high molecular material.The invention also discloses a kind of preparation method of NFC antifreeze plates.The present invention have prepare advantage of lower cost and it is more environmentally friendly the characteristics of.
Description
Technical field
The invention belongs to electronic material manufacturing technology field, and in particular to a kind of NFC antifreeze plates and preparation method thereof.
Background technology
In the last few years, flourishing with electronic communication industry, near-field communication NFC (Near Field
Communication) constantly improve of technology and extension, NFC module go out emblem mark what some developed countries had become mobile phone
Quasi- configuration.NFC chip built in NFC mobile phone, the bi-directionally transmitted function of maintenance data is somebody's turn to do so as to fit for electronic money payment
Technology can support a variety of applications, including mobile payment and message reference etc. in transaction, peer-to-peer communication and movement.NFC device is used
Make the data transmission link of contact type intelligent card, the read write line terminal of smart card and equipment to equipment.Because NFC antenna is set
Vortex phenomenon can be produced near circuit board of mobile phone or battery by putting, and cause signal strength weakening, ferrite sheet generally is attached into NFC
So as to which signal is isolated with metal between antenna and battery of mobile phone, the interference of vortex is reduced, the purpose for improving communication distance is reached.
Modern electronic product is all towards lightweight, thin type development, to the thickness and performance requirement of ferrite sheet also more and more higher.
Now, NFC ferrite sheets are general using ambrose alloy zinc as main powder stock, and prepared using casting technique.Phase
Than using extrusion or compressing mode, the ferrite film compactness of flow casting molding is relatively low, powder sedimentation is serious, causes density
It is uneven, sinter warpage and yields is low.
The content of the invention
The present invention be in order to the factory formula for overcoming prior art to exist is single, sintering warpage, organic solvent toxicity is larger,
Cost is high, and the problem of thin slice skinning is difficult prepares advantage of lower cost and more environmentally friendly NFC antifreeze plates there is provided a kind of.
Another object of the present invention is to provide a kind of preparation method of above-mentioned NFC antifreeze plates.
The purpose of the present invention is achieved through the following technical solutions：A kind of NFC antifreeze plates, including by weight：
The organic solvent is alcohols solvent, esters solvent, the one or more kinds of mixed solvents of ketone, the binding agent
For polyurethane class high molecular material.
The ferrite powder is nickel-copper-zinc ferrite powder.
The average particle size of the nickel-copper-zinc ferrite powder is 2.0-3.0 microns.
The binding agent is aqueous polyurethane.
The machine solvent is absolute ethyl alcohol.
The thickness of antifreeze plate is in below 0.25mm.
The preparation method of above-mentioned NFC antifreeze plates, comprises the following steps：
1) ferrite powder of 100 parts by weight is added in ball grinder, and adds the organic molten of 30~120 parts by weight
Agent, adds 0.1~2.5 part of dispersant, and Ball-milling Time is 1~5 hour, ferrite powder is fully soaked in organic solvent simultaneously
It is uniformly dispersed；
2) parts by weight of binding agent 3~15 and the parts by weight of plasticizer 1~5 that solid content is 30% are added, defoamer 0 is added
~1 parts by weight, rotational speed of ball-mill is 200rpm, and Ball-milling Time is 5-12 hours；
3) slurry is taken out, screen filtration, vacuum defoamation 15min obtains NFC curtain coating slurries；
4) curtain coating obtains last product.
The ferrite powder is nickel-copper-zinc ferrite powder；The average particle size of the nickel-copper-zinc ferrite powder is 2.0-
3.0 micron；The binding agent is aqueous polyurethane；The thickness of antifreeze plate is in below 0.25mm.
The step 1) in ball-milling medium be steel ball, carbon steel ball and zirconium ball in one or more.
The present invention has the following advantages and effect relative to prior art：
The present invention is used using alcohols as solvent, meets environmental requirement, while reducing production cost.The present invention uses poly- ammonia
Esters high polymer material makees binding agent, changes the curtain coating speed in casting processes, improves the compactness of ferrite sheet, curtain coating effect
Fruit is more preferable than the effect of conventional polyvinyl butyral binding agent, and dried ferrite sheet is easier to peel off from mould release membrance,
Also, it is not necessary to accelerate the rate of volatilization of solvent with the mode of high-temperature heating.Meanwhile, method disclosed by the invention is more suitable for surpassing
Thin ferrite sheet, thickness is preferred in below .0.25mm.In ferrite powder and aqueous polyurethane mixed process, nothing can be first used
Water-ethanol carries out slurrying processing as single solvent to ferrite powder.Slurry can reduce solvent by above-mentioned preparation method
Usage amount, can accelerate the rate of volatilization of aqueous polyurethane reclaimed water, improve ferrite raw cook pliability, reduce the breakage of raw cook
Degree, improves the sintering flatness of ferrite sheet.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
A kind of NFC antifreeze plates, including by weight：
Organic solvent in the present embodiment is absolute ethyl alcohol, and binding agent is polyurethane class high molecular material.
Ferrite powder in the present embodiment is nickel-copper-zinc ferrite powder；The average particle size of nickel-copper-zinc ferrite powder is
2.0-3.0 micron；Binding agent is aqueous polyurethane；The thickness of antifreeze plate is in below 0.25mm.
The preparation method of above-mentioned NFC antifreeze plates, comprises the following steps：
1) ferrite powder of 100 parts by weight is added in ball grinder, and adds the organic molten of 20~120 parts by weight
Agent, adds the parts by weight of dispersant 0.1~2.5, and Ball-milling Time is 0.5~5 hour, makes ferrite powder abundant in organic solvent
Soak and be uniformly dispersed；
2) parts by weight of binding agent 3~15 and the parts by weight of plasticizer 1~5 that solid content is 30% are added, defoamer 0 is added
~1 parts by weight, rotational speed of ball-mill is 200rpm, and Ball-milling Time is 5-12 hours；
3) slurry is taken out, screen filtration, vacuum defoamation 15min obtains NFC curtain coating slurries；
4) curtain coating obtains last product.
Step 1) in ball-milling medium be steel ball, carbon steel ball and zirconium ball in one or more.
Embodiment 2
Weigh raw material：Nickel-zinc ferrite powder (average particle size is 2.0-3.0 microns) 100 parts by weight, as organic
Each 15-60 parts by weight of alcohols and benzene kind solvent of solvent, dispersant 0.1-2.5 parts by weight, be added to ball milling 0.5 in ball grinder~
5h；The binding agent and the parts by weight of plasticizer 1~5 of 3~15 parts by weight are added, rotational speed of ball-mill is 200rpm, ball milling 5-12h；Will
Slurries filtration ball-milling medium after ball milling, carries out vacuum defoamation, inclined heated plate is 15min, obtains curtain coating slurry L1.
Embodiment 3
Weigh raw material：Nickel-copper-zinc ferrite powder (average particle size is 2.0-3.0 microns) 100 parts by weight, are used as solvent
The parts by weight of alcohols 30~120, dispersant 0.1-2.5 parts by weight are added to ball milling 0.5~5 hour in ball grinder；Add solid
Content is 30% parts by weight of polyurethane class high molecular material 3~15 and the parts by weight of plasticizer 1~5, adds defoamer 0-1 weight
Part, rotational speed of ball-mill is 200rpm, ball milling 5-12h, takes out slurry, and screen filtration, vacuum defoamation 15min obtains NFC curtain coatings slurry
Expect L2.
The magnetic conductivity of magnetic sheet, the performance test results such as table 1 are tested under the conditions of 100mV using Agilent E4991A analyzers
It is shown.L1 the performance test results are lower than L2 as can be seen from Table 1.
The embodiment 2 of table 1 and 3 magnetic sheet magnetic conductivities
Carry out sem analysis to embodiment 2 and embodiment 3 respectively, ferrite raw cook density ratio prepared by the method for embodiment 3 compared with
Greatly, hole is less, and its relative performance improves nearly 10%.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
1. a kind of NFC antifreeze plates, it is characterised in that including by weight：
The organic solvent is alcohols solvent, esters solvent, the one or more kinds of mixed solvents of ketone, and the binding agent is poly-
Urethane family macromolecule material.
2. NFC antifreeze plates according to claim 1, it is characterised in that：The ferrite powder is nickel-copper-zinc ferrite
Powder.
3. NFC antifreeze plates according to claim 2, it is characterised in that：The particle of the nickel-copper-zinc ferrite powder is averaged
Granularity is 2.0-3.0 microns.
4. NFC antifreeze plates according to claim 1, it is characterised in that：The binding agent is aqueous polyurethane.
5. NFC antifreeze plates according to claim 1, it is characterised in that：The thickness of antifreeze plate is in below 0.25mm.
6. NFC antifreeze plates according to claim 1, it is characterised in that：The organic solvent is absolute ethyl alcohol.
7. the preparation method of the NFC antifreeze plates according to any one of claim 1~6, it is characterised in that including following step
Suddenly：
1) ferrite powder of 100 parts by weight is added in ball grinder, and adds the organic solvent of 30~120 parts by weight, plus
Enter the parts by weight of dispersant 0.1~2.5, Ball-milling Time is 0.5~5 hour, ferrite powder is fully soaked in organic solvent
And be uniformly dispersed；
2) parts by weight of binding agent 3~15 and the parts by weight of plasticizer 1~5 that solid content is 30% are added, defoamer 0~1 is added
Parts by weight, rotational speed of ball-mill is 200rpm, and Ball-milling Time is 5-12 hours；
3) slurry is taken out, screen filtration, vacuum defoamation 15min obtains NFC curtain coating slurries；
4) curtain coating obtains last product.
8. the preparation method of NFC antifreeze plates according to claim 7, it is characterised in that：The ferrite powder is nickel
Copper zinc ferrite powder；The average particle size of the nickel-copper-zinc ferrite powder is 2.0-3.0 microns；The binding agent is aqueous poly-
Urethane；The thickness of antifreeze plate is in below 0.25mm.
9. the preparation method of NFC antifreeze plates according to claim 7, it is characterised in that：The step 1) in ball milling be situated between
Matter is the one or more in steel ball, carbon steel ball and zirconium ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439840.1A CN107266060B (en) | 2017-06-12 | 2017-06-12 | Magnetic separation sheet for NFC and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439840.1A CN107266060B (en) | 2017-06-12 | 2017-06-12 | Magnetic separation sheet for NFC and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107266060A true CN107266060A (en) | 2017-10-20 |
| CN107266060B CN107266060B (en) | 2020-07-07 |
Family
ID=60067048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710439840.1A Active CN107266060B (en) | 2017-06-12 | 2017-06-12 | Magnetic separation sheet for NFC and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107266060B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053008A (en) * | 2017-11-29 | 2018-05-18 | 横店集团东磁股份有限公司 | A kind of high frequency RFID electronic label antifreeze plate and preparation method thereof |
| CN108774056A (en) * | 2018-06-14 | 2018-11-09 | 横店集团东磁股份有限公司 | A kind of NiZn ferrites magnetic sheet and its preparation method and application |
| CN108911729A (en) * | 2018-06-28 | 2018-11-30 | 宁波高新区兆丰微晶新材料有限公司 | Ni-Zn-Cu system complex ferrite piece and preparation method thereof |
| CN109608183A (en) * | 2018-12-27 | 2019-04-12 | 横店集团东磁股份有限公司 | A kind of preparation method of ultra-thin ferrite sheet |
| CN109650870A (en) * | 2019-01-24 | 2019-04-19 | 横店集团东磁股份有限公司 | A kind of slurry and its preparation method and application of sheet type Ferrite Material |
| CN109910163A (en) * | 2017-12-13 | 2019-06-21 | 昊佰电子科技（上海）有限公司 | A kind of ferrite bound edge part manufacture craft |
| CN110511039A (en) * | 2019-09-18 | 2019-11-29 | 横店集团东磁股份有限公司 | A kind of magnetic sheet and preparation method thereof |
| CN110876278A (en) * | 2019-02-01 | 2020-03-10 | 江苏金羿先磁新材料科技有限公司 | Magnetic shielding sheet with fragrance and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140106900A (en) * | 2013-02-27 | 2014-09-04 | 에스케이씨 주식회사 | Flexible ceramic component |
| CN105537581A (en) * | 2016-01-11 | 2016-05-04 | 横店集团东磁股份有限公司 | Noise suppression piece and preparation method thereof |
| CN105541314A (en) * | 2014-11-04 | 2016-05-04 | 深圳振华富电子有限公司 | Preparation method of ferrite sheets |
| CN106158232A (en) * | 2016-08-12 | 2016-11-23 | 广州市晶磁电子科技有限公司 | Digitizing plate antifreeze plate and manufacture method thereof |
-
2017
- 2017-06-12 CN CN201710439840.1A patent/CN107266060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140106900A (en) * | 2013-02-27 | 2014-09-04 | 에스케이씨 주식회사 | Flexible ceramic component |
| CN105541314A (en) * | 2014-11-04 | 2016-05-04 | 深圳振华富电子有限公司 | Preparation method of ferrite sheets |
| CN105537581A (en) * | 2016-01-11 | 2016-05-04 | 横店集团东磁股份有限公司 | Noise suppression piece and preparation method thereof |
| CN106158232A (en) * | 2016-08-12 | 2016-11-23 | 广州市晶磁电子科技有限公司 | Digitizing plate antifreeze plate and manufacture method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053008A (en) * | 2017-11-29 | 2018-05-18 | 横店集团东磁股份有限公司 | A kind of high frequency RFID electronic label antifreeze plate and preparation method thereof |
| CN108053008B (en) * | 2017-11-29 | 2020-03-24 | 横店集团东磁股份有限公司 | Magnetic shielding sheet for high-frequency RFID electronic tag and preparation method thereof |
| CN109910163A (en) * | 2017-12-13 | 2019-06-21 | 昊佰电子科技（上海）有限公司 | A kind of ferrite bound edge part manufacture craft |
| CN108774056A (en) * | 2018-06-14 | 2018-11-09 | 横店集团东磁股份有限公司 | A kind of NiZn ferrites magnetic sheet and its preparation method and application |
| CN108911729A (en) * | 2018-06-28 | 2018-11-30 | 宁波高新区兆丰微晶新材料有限公司 | Ni-Zn-Cu system complex ferrite piece and preparation method thereof |
| CN109608183A (en) * | 2018-12-27 | 2019-04-12 | 横店集团东磁股份有限公司 | A kind of preparation method of ultra-thin ferrite sheet |
| CN109650870A (en) * | 2019-01-24 | 2019-04-19 | 横店集团东磁股份有限公司 | A kind of slurry and its preparation method and application of sheet type Ferrite Material |
| CN109650870B (en) * | 2019-01-24 | 2021-07-16 | 横店集团东磁股份有限公司 | Slurry of flake ferrite material and preparation method and application thereof |
| CN110876278A (en) * | 2019-02-01 | 2020-03-10 | 江苏金羿先磁新材料科技有限公司 | Magnetic shielding sheet with fragrance and preparation method and application thereof |
| CN110511039A (en) * | 2019-09-18 | 2019-11-29 | 横店集团东磁股份有限公司 | A kind of magnetic sheet and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107266060B (en) | 2020-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107266060A (en) | A kind of NFC antifreeze plates and preparation method thereof | |
| CN103833340B (en) | A kind of NFC magnetic sheet slurry and NFC magnetic sheet | |
| CN101620893B (en) | All-silver electronic paste and preparation method thereof | |
| CN112652434B (en) | Thin film power inductance magnetic sheet and preparation method and application thereof | |
| CN103597551A (en) | Electrically conductive sheet and process for producing same, and electronic component | |
| CN105419328A (en) | Modified barium titanate foamed ceramic/thermosetting resin composite material and preparation method thereof | |
| CN104446518B (en) | A kind of NFC magnetic cores aqueous casting slurry and preparation method, NFC magnetic cores and preparation method thereof | |
| CN103143723A (en) | Method for preparing flake silver powder with low bulk density | |
| CN104538083A (en) | High adhesive force and low-temperature setting conductive silver paste and preparing method thereof | |
| CN104575663A (en) | Electrode slurry and preparation method thereof | |
| CN109650870A (en) | A kind of slurry and its preparation method and application of sheet type Ferrite Material | |
| EP2893541A1 (en) | Paste for nfc magnetic sheet and method of preparing the same and nfc magnetic sheet | |
| CN111454616A (en) | Metal conductive ink and preparation method thereof | |
| CN111004020A (en) | Method for preparing high-purity alumina ceramic substrate at low temperature | |
| CN103426585B (en) | A kind of NFC magnetic sheet slurry and preparation method thereof and a kind of NFC magnetic sheet | |
| CN110189849B (en) | Low-melting-point metal-water-based conductive composite slurry and preparation method thereof | |
| KR101243895B1 (en) | Conductive Ink Composition and the method for preparing the same | |
| CN101354926B (en) | Method for preparing conductor slurry containing carbon and silver | |
| CN111438369B (en) | Silver powder, preparation method thereof and laser etched silver paste | |
| CN113943506A (en) | Anti-settling conductive ink and preparation process thereof | |
| CN112053796B (en) | Silver sulfide resistant electrode paste and preparation method thereof | |
| CN101497132B (en) | Preparation method of metal powder non-water-based casting slurry | |
| CN104177077A (en) | Water-based curtain casting slurry for NFC (near field communication) magnetic substrate, preparation method of slurry and NFC magnetic substrate | |
| CN104575666A (en) | Conductive silver paste for front face of crystalline silicon solar battery | |
| CN107740145B (en) | A kind of highly conductive carbon pores liquid of pcb board and its preparation method and application |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20171020 Assignee: Jinhua cimeng Intellectual Property Service Co.,Ltd. Assignor: HENGDIAN GROUP DMEGC MAGNETICS Co.,Ltd. Contract record no.: X2023330000883 Denomination of invention: A magnetic separator for NFC and its preparation method Granted publication date: 20200707 License type: Common License Record date: 20231128 |
|
| EE01 | Entry into force of recordation of patent licensing contract |