CN109096513A - A kind of PET release film and its manufacturing method - Google Patents
A kind of PET release film and its manufacturing method Download PDFInfo
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- CN109096513A CN109096513A CN201810752186.4A CN201810752186A CN109096513A CN 109096513 A CN109096513 A CN 109096513A CN 201810752186 A CN201810752186 A CN 201810752186A CN 109096513 A CN109096513 A CN 109096513A
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- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- 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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- 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
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of PET release film and its manufacturing method, raw material is formulated as follows in parts by weight: 100 parts of slurry, 4-6 parts of interleaving agent solvent type silicone oil, 5-7 parts of crosslinking agent, 3-6 parts of stabilizer, 0.5-0.7 parts of wet strength agent, 15-20 parts of organic silica gel resin, 4-5 parts of inorganic high-temperature resistant auxiliary agent, 0.3-0.5 parts of sizing agent, 2-4 parts of waterborne polyurethane resin, 0.5-1 parts of silicon nitride powder, 0.1-0.2 parts of Sodium Polyacrylate, 1-1.2 parts of high temperature resistant reinforcing agent, 5-10 parts of organic high temperature-resistant auxiliary agent, 4-8 parts of mould release.The mode that the present invention selects softwood pulp to manufacture paper with pulp with hardwood pulp proportion in terms of bulk needs in terms of heat resistance to control, add heat-resistant agent in the slurry to enhance the heat resistance of paper, by adding organic silica column, make release paper with excellent stripping performance and heat resistance, the release paper for solving prior art manufacture does not have fire-retardant performance generally, once the problem of fire will cause imponderable economic loss and casualties occurs.
Description
Technical field
The present invention relates to pulp technology for making paper, specially a kind of PET release film and its manufacturing method.
Background technique
Release film refers to that film surface can have the film of differentiation, and release film contacts under limited conditions with specific material
Do not have viscosity or slight viscosity afterwards.Under normal conditions in order to increase the off-type force of plastic film, plastic film can be done
Ion processing, or fluorine processing is applied, or apply silicon mould release on the surface layer of film material, such as PET, PE, OPP, etc.；Allow it for
A variety of different organic pressure sensitive adhesives (such as pressure sensitive adhesive of hot melt adhesive, acrylic glue and rubber series) can show extremely light and stable
Off-type force.The viscosity of the release film off-type force according to needed for difference, isolated product glue is different, and the corresponding adjustment of off-type force is allowed to
Reach extremely light and stable off-type force when removing.
Release film, also known as release paper, generally there is a three-layer structure, and first layer is that base stock, the second layer are that separation layer, third layer are
Parting agent layer, since mould release has certain permeance property, if not certain barrier, mould release can be penetrated into paper
Portion causes to solidify many undesirable elements such as bad and mould release usage amount (cost is excessively high) bigger than normal, so needing on base stock
One layer of separation layer is first covered, is that body paper is coated with mould release after superpressure also either with or without the release paper of separation layer, as Ge Laxin is release
Paper.Therefore release paper is by kaolin coating paper, leaching membrane paper and Ge Laxin paper etc. as base stock, then be coated with mould release on it and
It is manufactured.
The prior art manufacture release paper do not have fire-retardant performance generally, once occur fire will cause it is imponderable
Economic loss and casualties, for this purpose, it is proposed that a kind of PET release film and its manufacturing method.
Summary of the invention
The purpose of the present invention is to provide a kind of PET release film and its manufacturing methods, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of PET release film, raw material is according to parts by weight
Number meter formula is as follows: 100 parts of slurry, 4-6 parts of interleaving agent solvent type silicone oil, 5-7 parts of crosslinking agent, 3-6 parts of stabilizer, wet strength agent
0.5-0.7 parts, 15-20 parts of organic silica gel resin, 4-5 parts of inorganic high-temperature resistant auxiliary agent, 0.3-0.5 parts of sizing agent, aqueous polyurethane
2-4 parts of resin, 0.5-1 parts of silicon nitride powder, 0.1-0.2 parts of Sodium Polyacrylate, 1-1.2 parts of high temperature resistant reinforcing agent, organic high temperature-resistant
5-10 parts of auxiliary agent, 4-8 parts of mould release.
Preferably, the organic silica gel resin using methyl trichlorosilane, dimethyldichlorosilane, phenyl trichlorosilane,
The mixture of diphenyl dichlorosilane or dichloromethyl phenylsilane.
Preferably, the crosslinking agent uses cumyl peroxide, benzoyl peroxide, di-tert-butyl peroxide and two
One of ethylenetriamine.
A kind of manufacturing method of PET release film, includes the following steps: the preparation of organosilicon coating, matches in two stainless steels
The organic siliconresin of quantitative toluene and accurate scalar is pumped into slot processed, material mixing is uniform, is sealed, and opens coating unit baking oven
Heating equipment and hot wind blower system, adjustment oven temperature are 120-l5O into trapezoidal profile, and above-mentioned prepared organosilicon is applied
Material is pumped into bath, is opened Roots blower, is purged on PE plastic-coated paper by die head, makes every effort to even spread, extra solution
It returns in bath, coated release paper is volatilized first by broadcasting frame traction with 30-4Ore/rain speed by baking oven
Fall toluene, organosilicon solidifies on plastic-coated paper, one layer of firm bright film is formed, to obtain finished product.
Preferably, the every volume number sampling Detection of the release paper, scene scrape, do not fall off, do not fall light, be considered as qualification.
Compared with prior art, the beneficial effects of the present invention are: the present invention selected in terms of bulk softwood pulp with it is wealthy
The mode that leaf wood pulp proportion is manufactured paper with pulp needs in terms of heat resistance to control, and adds heat-resistant agent in the slurry to enhance the heat-resisting of paper
Performance has release paper with excellent stripping performance and heat resistance, while also having by adding organic silica column
Release coating and substrate adhesive force it is outstanding, without fall silicon phenomenon generation, no-off agent transfer phenomena occur, easily cross cutting punching row, thousand grades
Cleaning shop production, free from admixture, crystal point, alternative current label, paper product in gluing veriety, the high advantage of cost performance,
Do not have fire-retardant performance generally to solve the release paper of prior art manufacture, once fire, which occurs, will cause estimate
Economic loss and casualties the problem of.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution:
A kind of PET release film, raw material are formulated as follows in parts by weight: 100 parts of slurry, interleaving agent solvent type silicone oil 4-6
Part, 5-7 parts of crosslinking agent, 3-6 parts of stabilizer, 0.5-0.7 parts of wet strength agent, 15-20 parts of organic silica gel resin, inorganic high-temperature resistant help
4-5 parts of agent, 0.3-0.5 parts of sizing agent, 2-4 parts of waterborne polyurethane resin, 0.5-1 parts of silicon nitride powder, Sodium Polyacrylate 0.1-0.2
Part, 1-1.2 parts of high temperature resistant reinforcing agent, 5-10 parts of organic high temperature-resistant auxiliary agent, 4-8 parts of mould release.
A kind of manufacturing method of PET release film, includes the following steps: the preparation of organosilicon coating, matches in two stainless steels
The organic siliconresin of quantitative toluene and accurate scalar is pumped into slot processed, material mixing is uniform, is sealed, and opens coating unit baking oven
Heating equipment and hot wind blower system, adjustment oven temperature are 120-l5O into trapezoidal profile, and above-mentioned prepared organosilicon is applied
Material is pumped into bath, is opened Roots blower, is purged on PE plastic-coated paper by die head, makes every effort to even spread, extra solution
It returns in bath, coated release paper is volatilized first by broadcasting frame traction with 30-4Ore/rain speed by baking oven
Fall toluene, organosilicon solidifies on plastic-coated paper, one layer of firm bright film is formed, to obtain finished product.
Embodiment one:
A kind of PET release film, component match by mass percentage are as follows: 100 parts of slurry, 4 parts of interleaving agent solvent type silicone oil, crosslinking
5 parts of agent, 3 parts of stabilizer, 0.5 part of wet strength agent, 15 parts of organic silica gel resin, 4 parts of inorganic high-temperature resistant auxiliary agent, 0.3 part of sizing agent,
2 parts of waterborne polyurethane resin, 0.5 part of silicon nitride powder, 0.1 part of Sodium Polyacrylate, 1 part of high temperature resistant reinforcing agent, organic high temperature-resistant help
5 parts of agent, 4 parts of mould release, wherein organic silica gel resin using methyl trichlorosilane, dimethyldichlorosilane, phenyl trichlorosilane,
The mixture of diphenyl dichlorosilane or dichloromethyl phenylsilane, wherein crosslinking agent uses cumyl peroxide, peroxidating
One of benzoyl, di-tert-butyl peroxide and diethylenetriamines.
Preparation method: the preparation of organosilicon coating is pumped into quantitative toluene and accurate scalar in two stainless steel make-up tanks
Organic siliconresin, material mixing uniformly, be sealed, open coating unit baking oven heating equipment and hot wind blower system, adjustment
Oven temperature is 120-l5O into trapezoidal profile, and above-mentioned prepared organosilicon coating is pumped into bath, Roots blower is opened
Machine is purged on PE plastic-coated paper by die head, makes every effort to even spread, and extra solution returns in bath, it is coated from
Type paper vapors away toluene, organosilicon is solid on plastic-coated paper by broadcasting frame traction with 30-4Ore/rain speed by baking oven first
Change, form one layer of firm bright film, to obtain finished product, the every volume number sampling Detection of release paper, scene is scraped, and is not taken off
It falls, does not fall light, be considered as qualification.
Embodiment two:
A kind of PET release film, component match by mass percentage are as follows: 100 parts of slurry, 5 parts of interleaving agent solvent type silicone oil, crosslinking
6 parts of agent, 5 parts of stabilizer, 0.6 part of wet strength agent, 18 parts of organic silica gel resin, 4.5 parts of inorganic high-temperature resistant auxiliary agent, sizing agent 0.4
Part, 3 parts of waterborne polyurethane resin, 0.8 part of silicon nitride powder, 0.2 part of Sodium Polyacrylate, 1.1 parts of high temperature resistant reinforcing agent, organic resistance to height
8 parts of warm auxiliary agent, 6 parts of mould release, wherein organic silica gel resin uses methyl trichlorosilane, dimethyldichlorosilane, phenyl trichlorine
The mixture of silane, diphenyl dichlorosilane or dichloromethyl phenylsilane, wherein crosslinking agent uses cumyl peroxide, mistake
One of Benzoyl Oxide, di-tert-butyl peroxide and diethylenetriamines.
Preparation method: the preparation of organosilicon coating is pumped into quantitative toluene and accurate scalar in two stainless steel make-up tanks
Organic siliconresin, material mixing uniformly, be sealed, open coating unit baking oven heating equipment and hot wind blower system, adjustment
Oven temperature is 120-l5O into trapezoidal profile, and above-mentioned prepared organosilicon coating is pumped into bath, Roots blower is opened
Machine is purged on PE plastic-coated paper by die head, makes every effort to even spread, and extra solution returns in bath, it is coated from
Type paper vapors away toluene, organosilicon is solid on plastic-coated paper by broadcasting frame traction with 30-4Ore/rain speed by baking oven first
Change, form one layer of firm bright film, to obtain finished product, the every volume number sampling Detection of release paper, scene is scraped, and is not taken off
It falls, does not fall light, be considered as qualification.
Embodiment three:
A kind of PET release film, component match by mass percentage are as follows: 100 parts of slurry, 6 parts of interleaving agent solvent type silicone oil, crosslinking
7 parts of agent, 6 parts of stabilizer, 0.7 part of wet strength agent, 20 parts of organic silica gel resin, 5 parts of inorganic high-temperature resistant auxiliary agent, 0.5 part of sizing agent,
4 parts of waterborne polyurethane resin, 1 part of silicon nitride powder, 0.2 part of Sodium Polyacrylate, 1.2 parts of high temperature resistant reinforcing agent, organic high temperature-resistant help
10 parts of agent, 8 parts of mould release, wherein organic silica gel resin uses methyl trichlorosilane, dimethyldichlorosilane, phenyl trichlorine silicon
The mixture of alkane, diphenyl dichlorosilane or dichloromethyl phenylsilane, wherein crosslinking agent uses cumyl peroxide, peroxide
Change one of benzoyl, di-tert-butyl peroxide and diethylenetriamines.
Preparation method: the preparation of organosilicon coating is pumped into quantitative toluene and accurate scalar in two stainless steel make-up tanks
Organic siliconresin, material mixing uniformly, be sealed, open coating unit baking oven heating equipment and hot wind blower system, adjustment
Oven temperature is 120-l5O into trapezoidal profile, and above-mentioned prepared organosilicon coating is pumped into bath, Roots blower is opened
Machine is purged on PE plastic-coated paper by die head, makes every effort to even spread, and extra solution returns in bath, it is coated from
Type paper vapors away toluene, organosilicon is solid on plastic-coated paper by broadcasting frame traction with 30-4Ore/rain speed by baking oven first
Change, form one layer of firm bright film, to obtain finished product, the every volume number sampling Detection of release paper, scene is scraped, and is not taken off
It falls, does not fall light, be considered as qualification.
The present invention selects softwood pulp and hardwood pulp to match the mode manufactured paper with pulp to control in heat resistance in terms of bulk
Aspect needs, and adds heat-resistant agent in the slurry to enhance the heat resistance of paper, by adding organic silica column, makes release paper
With outstanding, existing without silicon is fallen with release coating and substrate adhesive force with excellent stripping performance and heat resistance, while also
As occurring, no-off agent transfer phenomena occurs, easily cross cutting punching row, thousand grades of cleaning shop productions, free from admixture, crystal point, alternative mesh
Paper product in preceding label, gluing veriety, the high advantage of cost performance, so that the release paper for solving prior art manufacture is general
Without fire-retardant performance, once the problem of fire will cause imponderable economic loss and casualties occurs.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of PET release film, it is characterised in that: its raw material is formulated as follows in parts by weight: 100 parts of slurry, interleaving agent
4-6 parts of solvent type silicone oil, 5-7 parts of crosslinking agent, 3-6 parts of stabilizer, 0.5-0.7 parts of wet strength agent, organic silica gel resin 15-20
Part, is gathered 4-5 parts of inorganic high-temperature resistant auxiliary agent, 0.3-0.5 parts of sizing agent, 2-4 parts of waterborne polyurethane resin, 0.5-1 parts of silicon nitride powder
0.1-0.2 parts of sodium acrylate, 1-1.2 parts of high temperature resistant reinforcing agent, 5-10 parts of organic high temperature-resistant auxiliary agent, 4-8 parts of mould release.
2. a kind of PET release film according to claim 1, it is characterised in that: the organic silica gel resin uses methyl three
Chlorosilane, dimethyldichlorosilane, phenyl trichlorosilane, diphenyl dichlorosilane or dichloromethyl phenylsilane mixture.
3. a kind of PET release film according to claim 1, it is characterised in that: the crosslinking agent uses peroxidating diisopropyl
One of benzene, benzoyl peroxide, di-tert-butyl peroxide and diethylenetriamines.
4. a kind of manufacturing method of PET release film, characterized by the following steps: the preparation of organosilicon coating, at two
The organic siliconresin of quantitative toluene and accurate scalar is pumped into stainless steel make-up tank, material mixing is uniform, is sealed, and opens coating machine
The heating equipment and hot wind blower system of group baking oven, adjustment oven temperature are 120-l5O into trapezoidal profile, will be above-mentioned prepared
Organosilicon coating is pumped into bath, is opened Roots blower, is purged on PE plastic-coated paper by die head, makes every effort to even spread, more
Remaining solution returns in bath, and coated release paper passes through baking oven by broadcasting frame traction with 30-4Ore/rain speed,
Toluene is vapored away first, and organosilicon solidifies on plastic-coated paper, one layer of firm bright film is formed, to obtain finished product.
5. a kind of manufacturing method of PET release film according to claim 4, it is characterised in that: the every volume of release paper is compiled
Number sampling Detection, scene scrape, do not fall off, do not fall light, be considered as qualification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810752186.4A CN109096513A (en) | 2018-07-10 | 2018-07-10 | A kind of PET release film and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810752186.4A CN109096513A (en) | 2018-07-10 | 2018-07-10 | A kind of PET release film and its manufacturing method |
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| CN109096513A true CN109096513A (en) | 2018-12-28 |
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| CN201810752186.4A Pending CN109096513A (en) | 2018-07-10 | 2018-07-10 | A kind of PET release film and its manufacturing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144761A (en) * | 2019-06-03 | 2019-08-20 | 苏州甲腾包装材料科技有限公司 | A kind of preparation method of silicon oil release paper |
| CN110862690A (en) * | 2019-10-12 | 2020-03-06 | 温州新意特种纸业有限公司 | Formula of graphene rolled film |
| CN111363398A (en) * | 2020-04-24 | 2020-07-03 | 捷凌特电子(深圳)有限公司 | Light release agent additive and use method thereof |
| CN112552843A (en) * | 2020-12-12 | 2021-03-26 | 安徽新辰光学新材料有限公司 | High-temperature-resistant adhesive tape adhesive and preparation method thereof |
| CN114479149A (en) * | 2022-03-14 | 2022-05-13 | 苏州市奥贝新材料科技有限公司 | Calendering release film for graphene carrier and preparation method thereof |
| CN115322426A (en) * | 2022-08-30 | 2022-11-11 | 扬州万润光电科技股份有限公司 | Wear-resistant and chemical-reagent-resistant PET release film and preparation method thereof |
| CN116042130A (en) * | 2023-02-22 | 2023-05-02 | 湖南优珀斯新材料科技有限公司 | High-viscosity-retention high-temperature-resistant PE release film for building waterproof coiled material and manufacturing method thereof |
| CN116162422A (en) * | 2023-02-19 | 2023-05-26 | 安徽谊鑫胶带有限公司 | High-temperature-resistant adhesive tape and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144761A (en) * | 2019-06-03 | 2019-08-20 | 苏州甲腾包装材料科技有限公司 | A kind of preparation method of silicon oil release paper |
| CN110862690A (en) * | 2019-10-12 | 2020-03-06 | 温州新意特种纸业有限公司 | Formula of graphene rolled film |
| CN111363398A (en) * | 2020-04-24 | 2020-07-03 | 捷凌特电子(深圳)有限公司 | Light release agent additive and use method thereof |
| CN112552843A (en) * | 2020-12-12 | 2021-03-26 | 安徽新辰光学新材料有限公司 | High-temperature-resistant adhesive tape adhesive and preparation method thereof |
| CN114479149A (en) * | 2022-03-14 | 2022-05-13 | 苏州市奥贝新材料科技有限公司 | Calendering release film for graphene carrier and preparation method thereof |
| CN115322426A (en) * | 2022-08-30 | 2022-11-11 | 扬州万润光电科技股份有限公司 | Wear-resistant and chemical-reagent-resistant PET release film and preparation method thereof |
| CN115322426B (en) * | 2022-08-30 | 2023-12-08 | 扬州万润光电科技股份有限公司 | Wear-resistant and chemical reagent-resistant PET release film and preparation method thereof |
| CN116162422A (en) * | 2023-02-19 | 2023-05-26 | 安徽谊鑫胶带有限公司 | High-temperature-resistant adhesive tape and preparation method thereof |
| CN116042130A (en) * | 2023-02-22 | 2023-05-02 | 湖南优珀斯新材料科技有限公司 | High-viscosity-retention high-temperature-resistant PE release film for building waterproof coiled material and manufacturing method thereof |
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Application publication date: 20181228 |