CN114103360A - Release base film applied to MLCC (multilayer ceramic capacitor) and preparation method thereof - Google Patents
Release base film applied to MLCC (multilayer ceramic capacitor) and preparation method thereof Download PDFInfo
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- CN114103360A CN114103360A CN202111431006.0A CN202111431006A CN114103360A CN 114103360 A CN114103360 A CN 114103360A CN 202111431006 A CN202111431006 A CN 202111431006A CN 114103360 A CN114103360 A CN 114103360A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003985 ceramic capacitor Substances 0.000 title description 4
- 239000002346 layers by function Substances 0.000 claims abstract description 41
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 25
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 25
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 25
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 22
- 239000010439 graphite Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 21
- 239000001257 hydrogen Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims description 47
- 238000002156 mixing Methods 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000005303 weighing Methods 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 150000002989 phenols Chemical class 0.000 claims description 3
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 70
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000002791 soaking Methods 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 230000008033 biological extinction Effects 0.000 description 3
- 239000006224 matting agent Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/16—Capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of release films, in particular to a release base film applied to MLCC (multilayer ceramic chip carrier) and a preparation method thereof, wherein the release base film comprises a release film and two functional layers, the two functional layers are respectively positioned at two sides of the release film, and the release film comprises the following raw materials in parts by weight: 85-96 parts of PET particles, 2-5 parts of water-insoluble carbonate, 0.5-1 part of hydrogen-containing tackifier and 0.08-0.8 part of nano graphite; the functional layer comprises the following raw materials in parts by weight: 32-44 parts of high-density polyethylene, 5-12 parts of a delustering agent, 39-55 parts of flexible resin and 0.3-0.9 part of an antioxidant, functional layers are bonded on two surfaces of the release film, and the flexible resin and the high-density polyethylene are adopted in the functional layers, so that the flexibility and the delustering property of the release base film are improved.
Description
Technical Field
The invention relates to the technical field of release films, in particular to a release base film applied to MLCC and a preparation method thereof.
Background
The MLCC is a chip type multilayer ceramic capacitor, which is formed by overlapping ceramic dielectric films printed with electrodes in a staggered mode, forming a ceramic chip through one-time high-temperature sintering, and sealing metal layers at two ends of the chip to form a structure body similar to a monolith.
Most of the existing release base films applied to MLCC directly use the existing transparent PET original films as base materials, release substances are coated on the surfaces of the base films to reduce the free energy on the surfaces of the transparent PET thin films and achieve the release effect, but the existing transparent PET original films are poor in flexibility, and therefore the release base films applied to MLCC are poor in flexibility.
Disclosure of Invention
The invention aims to provide a release base film applied to an MLCC (multilayer ceramic capacitor) and a preparation method thereof, so as to increase the flexibility of the release base film.
In order to achieve the above object, the present invention provides a release base film for MLCC, comprising a release film and two functional layers, wherein the two functional layers are respectively located at two sides of the release film;
the release film comprises the following raw materials in parts by weight: 85-96 parts of PET particles, 2-5 parts of water-insoluble carbonate, 0.5-1 part of hydrogen-containing tackifier and 0.08-0.8 part of nano graphite;
the functional layer comprises the following raw materials in parts by weight: 32-44 parts of high-density polyethylene, 5-12 parts of a delustering agent, 39-55 parts of flexible resin and 0.3-0.9 part of an antioxidant.
Wherein the water-insoluble carbonate is one of calcium carbonate or barium carbonate.
Wherein the delustering agent is amorphous white carbon black.
Wherein the flexible resin is polyurethane resin.
Wherein the antioxidant is one of hindered phenols, phosphites, thio compounds or hindered amines.
The invention also provides a preparation method of the release base film applied to the MLCC, which comprises the following steps:
preparing a release film according to the raw material ratio;
preparing two functional layers according to the raw material ratio;
and respectively bonding the two functional layers on the two surfaces of the release film to obtain the release base film.
The release film is prepared by the following specific steps according to the raw material ratio:
weighing PET particles, water-insoluble carbonate, a hydrogen-containing tackifier and nano graphite according to the weight part ratio; mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture;
and heating the first mixture to a molten state, and extruding and molding to obtain the release film.
The preparation method of the two functional layers comprises the following specific steps of:
weighing high-density polyethylene, a delustering agent, flexible resin and an antioxidant according to the weight part ratio;
mixing the weighed high-density polyethylene, the flatting agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture;
and heating the second mixture to a molten state, and extruding and molding to obtain the functional layer.
According to the release base film applied to the MLCC and the preparation method thereof, the functional layers are bonded on the two surfaces of the release base film, and the functional layers are made of flexible resin and high-density polyethylene, so that the flexibility and the extinction property of the release base film are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for preparing a release base film for MLCC according to the present invention.
Fig. 2 is a flowchart of the specific steps of S100 provided by the present invention.
Fig. 3 is a flowchart of the specific steps of S200 provided by the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to 3, the present invention provides a release base film for an MLCC, including a release film and two functional layers, wherein the two functional layers are respectively located at two sides of the release film;
the release film comprises the following raw materials in parts by weight: 85-96 parts of PET particles, 2-5 parts of water-insoluble carbonate, 0.5-1 part of hydrogen-containing tackifier and 0.08-0.8 part of nano graphite;
the water-insoluble carbonate is one of calcium carbonate or barium carbonate;
the functional layer comprises the following raw materials in parts by weight: 32-44 parts of high-density polyethylene, 5-12 parts of a delustering agent, 39-55 parts of flexible resin and 0.3-0.9 part of an antioxidant;
the flatting agent is amorphous white carbon black;
the flexible resin is polyurethane resin;
the antioxidant is one of hindered phenols, phosphites, thio compounds or hindered amines.
The invention also provides a preparation method of the release base film applied to the MLCC, which comprises the following steps:
s100: preparing a release film according to the raw material ratio;
the specific steps of S100 are as follows:
s101: weighing PET particles, water-insoluble carbonate, hydrogen-containing tackifier and sodium according to the weight part ratio
Rice graphite;
s102: mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, wherein the mixing time is 10-40 min, and the mixing speed is 900-1800 r/min;
s103: heating the first mixture to a molten state, and extruding and forming to obtain a release film;
s200: preparing two functional layers according to the raw material ratio;
the specific steps of S200 are as follows:
s201: weighing high-density polyethylene, a delustering agent, flexible resin and an antioxidant according to the weight part ratio;
s202: mixing the weighed high-density polyethylene, the flatting agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture, wherein the mixing time is 10-30 min, and the mixing speed is 1000-1850 r/min;
s203: heating the second mixture to a molten state, and extruding and forming the second mixture into a functional layer;
s300: respectively bonding the two functional layers on two surfaces of a release film to obtain a release base film;
s400: and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Example 1:
weighing 85 parts of PET particles, 5 parts of water-insoluble carbonate, 1 part of hydrogen-containing tackifier and 0.08 part of nano graphite, mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, wherein the mixing time is 20min, the mixing speed is 900r/min, heating the first mixture to a molten state, extruding and molding the first mixture into a release film, weighing 32 parts of high-density polyethylene, 5 parts of delustering agent, 39 parts of flexible resin and 0.3 part of antioxidant, mixing the weighed high-density polyethylene, the delustering agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture, wherein the mixing time is 15min, the mixing speed is 1600r/min, heating the second mixture to a molten state, extruding and molding the second mixture into a functional layer, and bonding the two functional layers to two surfaces of the release film respectively to obtain a release base film, and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Example 2:
weighing 89 parts of PET particles, 2 parts of water-insoluble carbonate, 0.5 part of hydrogen-containing tackifier and 0.1 part of nano graphite, mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, wherein the mixing time is 15min, the mixing speed is 900r/min, heating the first mixture to a molten state, extruding and molding the first mixture into a release film, weighing 32 parts of high-density polyethylene, 5 parts of delustering agent, 39 parts of flexible resin and 0.6 part of antioxidant, mixing the weighed high-density polyethylene, the delustering agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture, wherein the mixing time is 10min, the mixing speed is 1000r/min, heating the second mixture to a molten state, extruding and molding the second mixture into a functional layer, and respectively bonding the two functional layers to two surfaces of the release film to obtain a release base film, and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Example 3:
weighing 88 parts of PET particles, 4 parts of water-insoluble carbonate, 0.7 part of hydrogen-containing tackifier and 0.3 part of nano graphite, mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, wherein the mixing time is 25min, the mixing speed is 1100r/min, heating the first mixture to a molten state, extruding and molding the first mixture into a release film, weighing 35 parts of high-density polyethylene, 6 parts of matting agent, 40 parts of flexible resin and 0.5 part of antioxidant, mixing the weighed high-density polyethylene, matting agent, flexible resin and antioxidant at room temperature to obtain a second mixture, wherein the mixing time is 30min, the mixing speed is 1000r/min, heating the second mixture to a molten state, extruding and molding the second mixture into a functional layer, and respectively bonding the two functional layers to two surfaces of the release film to obtain a release base film, and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Example 4:
weighing 85 parts of PET particles, 3 parts of water-insoluble carbonate, 0.7 part of hydrogen-containing tackifier and 0.08-0.8 part of nano graphite, mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, heating the first mixture to a molten state, extruding and molding the first mixture into a release film, weighing 39 parts of high-density polyethylene, 8 parts of delustering agent, 51 parts of flexible resin and 0.8 part of antioxidant, mixing the weighed high-density polyethylene, the delustering agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture, heating the second mixture to the molten state, extruding and molding the second mixture into a functional layer, respectively bonding the two functional layers to two surfaces of the release film to obtain a release base film, and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Example 5:
weighing 90 parts of PET particles, 3 parts of water-insoluble carbonate, 0.7 part of hydrogen-containing tackifier and 0.2 part of nano graphite, mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, heating the first mixture to a molten state, extruding and molding to obtain a release film, weighing 38 parts of high-density polyethylene, 8 parts of delustering agent, 45 parts of flexible resin and 0.6 part of antioxidant, mixing the weighed high-density polyethylene, the delustering agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture, heating the second mixture to the molten state at a mixing speed of 1850r/min, extruding and molding to obtain functional layers, and respectively bonding the two functional layers to two surfaces of the release film to obtain a release base film, and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Example 6:
weighing 96 parts of PET particles, 5 parts of water-insoluble carbonate, 0.6 part of hydrogen-containing tackifier and 0.8 part of nano graphite, mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture, wherein the mixing time is 30min, the mixing speed is 1800r/min, heating the first mixture to a molten state, extruding and molding the first mixture into a release film, weighing 39 parts of high-density polyethylene, 8 parts of delustering agent, 51 parts of flexible resin and 0.9 part of antioxidant, mixing the weighed high-density polyethylene, the delustering agent, the flexible resin and the antioxidant at room temperature to obtain a second mixture, wherein the mixing time is 30min, the mixing speed is 1850r/min, heating the second mixture to a molten state, extruding and molding the second mixture into functional layers, and respectively bonding the two functional layers to two surfaces of the release film to obtain a release base film, and (3) placing the release base film in a silicon-containing solvent for soaking to obtain the sticky release base film.
Functional layers are bonded on two surfaces of the release film, flexible resin and high-density polyethylene are adopted in the functional layers, the flexibility and the extinction performance of the release base film are improved, and the release base film prepared in the embodiments 1-6 has better flexibility and extinction performance compared with the existing release base film.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A release base film for MLCC is characterized in that,
the release film comprises a release film and two functional layers, wherein the two functional layers are respectively positioned on two sides of the release film;
the release film comprises the following raw materials in parts by weight: 85-96 parts of PET particles, 2-5 parts of water-insoluble carbonate, 0.5-1 part of hydrogen-containing tackifier and 0.08-0.8 part of nano graphite;
the functional layer comprises the following raw materials in parts by weight: 32-44 parts of high-density polyethylene, 5-12 parts of a delustering agent, 39-55 parts of flexible resin and 0.3-0.9 part of an antioxidant.
2. The release base film for MLCC application according to claim 1, wherein,
the water-insoluble carbonate is one of calcium carbonate or barium carbonate.
3. The release base film for MLCC application according to claim 2, wherein,
the flatting agent is amorphous white carbon black.
4. The release base film for MLCC application according to claim 3, wherein,
the flexible resin is polyurethane resin.
5. The release base film for MLCC application according to claim 4, wherein,
the antioxidant is one of hindered phenols, phosphites, thio compounds or hindered amines.
6. The method for preparing the release base film for the MLCC according to claim 5, which comprises the following steps:
preparing a release film according to the raw material ratio;
preparing two functional layers according to the raw material ratio;
and respectively bonding the two functional layers on the two surfaces of the release film to obtain the release base film.
7. The method of preparing a release base film for an MLCC according to claim 6, wherein,
the preparation method of the release film according to the raw material ratio comprises the following specific steps:
weighing PET particles, water-insoluble carbonate, a hydrogen-containing tackifier and nano graphite according to the weight part ratio;
mixing the weighed PET particles, the water-insoluble carbonate, the hydrogen-containing tackifier and the nano graphite at room temperature to obtain a first mixture;
and heating the first mixture to a molten state, and extruding and molding to obtain the release film.
8. The method of preparing a release base film for an MLCC according to claim 7, wherein,
the preparation of the two functional layers according to the raw material ratio comprises the following specific steps:
weighing high-density polyethylene, a delustering agent, flexible resin and an antioxidant according to the weight part ratio;
mixing the weighed high-density polyethylene, the flatting agent, the flexible resin and the antioxidant at room temperature,
obtaining a second mixture;
and heating the second mixture to a molten state, and extruding and molding to obtain the functional layer.
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| CN109796690A (en) * | 2018-12-30 | 2019-05-24 | 苏州市奥贝膜业有限公司 | A kind of preparation method of the more color multimembrane kind release films of anti-static type |
| CN110239185A (en) * | 2019-06-14 | 2019-09-17 | 江苏双星彩塑新材料股份有限公司 | A kind of MLCC release film basement membrane and preparation method thereof |
| CN112759779A (en) * | 2020-12-30 | 2021-05-07 | 南京科悦新材料有限公司 | Super-flexible release film and preparation method thereof |
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- 2021-11-29 CN CN202111431006.0A patent/CN114103360A/en active Pending
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