CN111136967A - Thermoplastic elastomer protective film and preparation process thereof - Google Patents
Thermoplastic elastomer protective film and preparation process thereof Download PDFInfo
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- CN111136967A CN111136967A CN201811309298.9A CN201811309298A CN111136967A CN 111136967 A CN111136967 A CN 111136967A CN 201811309298 A CN201811309298 A CN 201811309298A CN 111136967 A CN111136967 A CN 111136967A
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- layer
- base layer
- protective film
- adhesive layer
- film
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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
- 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
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- B32B27/06—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
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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
- B32B27/06—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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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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
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a thermoplastic elastomer protective film and a preparation process thereof, wherein the thermoplastic elastomer protective film comprises a base layer, wherein a composite adhesive layer is arranged on the upper side of the base layer, an anti-scratch layer is arranged on the upper side of a laminating adhesive layer, a pressure-sensitive adhesive layer is arranged on the lower side of the base layer, and an attaching layer is arranged on the lower side of the pressure-sensitive adhesive layer; by adopting a calendering laminating technology, the TPU film is compounded with the high-gloss PTE film, so that the technical problems of the TPU in the aspects of cleanliness, crystal points, flow marks, water ripples and the like can be solved; need not additionally set up the PET membrane as the optics substrate layer in pasting synthetic protective film as the base film with the compound highlight PTE membrane of TPU membrane, can effectively reduce the thickness of PTE material, the later stage processing and the use of being convenient for have higher hardness and still have the pliability concurrently, have higher resiliency to the impulsive force, can play obvious explosion-proof effect.
Description
Technical Field
The invention relates to the technical field of protective films, in particular to a thermoplastic elastomer protective film and a process thereof.
Background
Thermoplastic elastomer TPE/TPR, also known as elastomer or elastomer. The product not only has the excellent performances of high elasticity, aging resistance and oil resistance of the traditional cross-linked vulcanized rubber, but also has the characteristics of convenient processing and wide processing mode of common plastics. The nozzle can be produced by processing modes such as injection molding, extrusion, blow molding and the like, and 100 percent of the nozzle corners are directly used for the second time after being crushed. The processing process is simplified, and the processing cost is reduced, so that the thermoplastic elastomer TPE/TPR material becomes a latest material for replacing the traditional rubber, is environment-friendly, nontoxic, comfortable in hand feeling and exquisite in appearance, and makes the product more creative. Therefore, the material is a novel synthetic material with more humanization and high grade, and is also a worldwide standard environment-friendly material; TPEs that have been produced industrially in the world are: styrenes (SBS, SIS, SEBS, SEPS), olefins (TP 0, TPV), dienes (TPB, TPI), vinyl chlorides (TPVC, TCPE), urethanes (TPU), esters (TPEE), amides (TPAE), organofluorine (TPF), silicones, and vinyls, and the like, and cover almost all fields of synthetic rubbers and synthetic resins at present.
The TPU is a thermoplastic polyurethane elastomer, is short for thermoplastic polyurethane high polymer materials, and is prepared by adding and polymerizing polyether or polyester diol, diisocyanate and a small molecular weight chain extender. The rubber has the characteristics of high modulus, high strength, high elongation, high elasticity, excellent wear resistance, low temperature resistance, no odor, no toxicity, heat seal processing and the like, has the processability of plastics and the physical and mechanical properties of rubber, and is widely applied to the fields of automobile industry, aerospace, medical treatment and health, articles for daily use and the like.
The existing TPU mould preparation process has the problems of crystal impurity points, flow marks, water ripples, low cleanliness and the like easily appearing on the surface in the preparation process, so that the requirement of high cleanliness of screen protection cannot be met, the scratch-resistant protective film products in the market can only play a role in preventing hard objects from being scratched, and if products such as mobile phones and the like slide down from hands or heavy objects fall on the screen, the screen cannot be effectively protected; the protective effect is achieved by increasing the thickness of the base material, but because the base material of the protective film is mainly PET, the thickness of the protective film is more than 100 μm, the protective film is extremely hard and is not beneficial to the later processing, and meanwhile, the hand feeling is not good when a customer uses the protective film and the skin is easily scratched, therefore, the technical personnel in the field provide the protective film of the thermoplastic elastomer and the process thereof so as to solve the problems in the background technology.
Disclosure of Invention
The present invention is directed to a thermoplastic elastomer protective film and a process thereof, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a thermoplastic elastomer protection film, includes the basic unit, the basic unit upside is provided with compound adhesive layer, covers and to close the adhesive layer upside and be provided with and prevent drawing the layer, the basic unit downside is provided with pressure sensitive adhesive layer, and pressure sensitive adhesive layer downside is provided with the laminating layer.
As an improvement: the base layer is a TPU substrate film compounded with a highlight PET film.
As a further improvement: the anti-scratch layer is a polyurethane coating.
As a further improvement: the composite adhesive layer is prepared from acrylic collagen liquid, an isocyanic acid curing agent, ethyl acetate and toluene according to the component ratio of 50: 2: 30: 18.
as a further improvement: the pressure-sensitive adhesive layer is silica gel.
A preparation process of a thermoplastic elastomer protective film comprises the following steps:
firstly, preparing a base layer;
secondly, coating the composite adhesive layer on the upper side of the base layer, feeding the base layer into a first oven through a conveying roller, and attaching the base layer to the anti-scratch layer through a compression roller after the base layer comes out of the first oven;
thirdly, coating the pressure-sensitive adhesive layer on the lower side of the base layer, feeding the pressure-sensitive adhesive layer into a second oven through a conveying roller, and attaching the base layer 3 and the attaching layer after coming out of the second oven through a compression roller;
and fourthly, cutting by using a cutting device.
As an improvement: the preparation of the base layer in the first step comprises the following steps:
1) adding TPU raw material particles into a dryer for drying treatment;
2) taking a dried TPU raw material particle 86-93 component, an anti-hydrolysis agent 1-2 component, a light stabilizer 0.5-1 component and an antioxidant, and fully mixing in a mixing device according to the 0.5-1 component;
3) putting the mixture into an extrusion device to form a film in and out, performing calendering treatment when the TPU film is not shaped, and compounding a high-gloss PET film;
4) and cooling and shaping, and finally rolling to obtain a finished product.
As a further improvement: and the process of preparing the base layer in the step one is carried out in a dust-free environment.
Compared with the prior art, the invention has the advantages that:
by adopting a calendering laminating technology, the TPU film is compounded with the high-gloss PTE film, so that the technical problems of the TPU in the aspects of cleanliness, crystal points, flow marks, water ripples and the like can be solved; need not additionally set up the PET membrane as the optics substrate layer in pasting synthetic protective film as the base film with the compound highlight PTE membrane of TPU membrane, can effectively reduce the thickness of PTE material, the later stage processing and the use of being convenient for have higher hardness and still have the pliability concurrently, have higher resiliency to the impulsive force, can play obvious explosion-proof effect.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
fig. 1 is a structural view of a thermoplastic elastomer protective film.
1-scratch-resistant layer, 2-composite adhesive layer, 3-base layer, 4-pressure-sensitive adhesive layer and 5-laminating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a thermoplastic elastomer protective film includes a base layer 3, a composite adhesive layer 2 is disposed on an upper side of the base layer 3, an anti-scratch layer 1 is disposed on an upper side of the composite adhesive layer 2, a pressure-sensitive adhesive layer 4 is disposed on a lower side of the base layer 3, and an adhesive layer 5 is disposed on a lower side of the pressure-sensitive adhesive layer 4.
The base layer 3 is a TPU substrate film compounded with a highlight PET film.
The scratch-resistant layer 1 is a polyurethane coating.
The composite adhesive layer 2 is prepared from acrylic collagen liquid, an isocyanic acid curing agent, ethyl acetate and toluene according to the component ratio of 50: 2: 30: 18.
the pressure-sensitive adhesive layer 4 is silica gel.
A preparation process of a thermoplastic elastomer protective film comprises the following steps:
firstly, preparing a base layer 3;
secondly, coating the composite glue layer 2 on the upper side of the base layer 3, and feeding the base layer 3 into a first oven through a conveying roller, wherein the base layer 3 is attached to the anti-scratch layer 1 through a compression roller after coming out of the first oven;
thirdly, coating the pressure-sensitive adhesive layer 4 on the lower side of the base layer 3, feeding the base layer 3 into a second oven through a conveying roller, and attaching the base layer 3 and the attaching layer 5 through a compression roller after the base layer is discharged from the second oven;
and fourthly, cutting by using a cutting device.
The preparation of the base layer 3 in the first step comprises the following steps:
1) adding TPU raw material particles into a dryer for drying treatment;
2) taking a dried TPU raw material particle 86-93 component, an anti-hydrolysis agent 1-2 component, a light stabilizer 0.5-1 component and an antioxidant, and fully mixing in a mixing device according to the 0.5-1 component;
3) putting the mixture into an extrusion device to form a film in and out, performing calendering treatment when the TPU film is not shaped, and compounding a high-gloss PET film;
4) and cooling and shaping, and finally rolling to obtain a finished product.
The process of preparing the base layer 3 in the first step is performed in a dust-free environment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a thermoplastic elastomer protection film, includes basic unit (3), its characterized in that, basic unit (3) upside is provided with composite adhesive layer (2), covers composite adhesive layer (2) upside and is provided with and prevents drawing layer (1), basic unit (3) downside is provided with pressure sensitive adhesive layer (4), and pressure sensitive adhesive layer (4) downside is provided with laminating layer (5).
2. Protective film according to claim 1, wherein the base layer (3) is a TPU substrate film compounded with a high gloss PET film.
3. A protective film according to claim 1, wherein said scratch resistant layer 1 is a polyurethane coating.
4. The protective film according to claim 1, wherein the adhesive layer 2 is made of acrylic collagen solution, isocyanate curing agent, ethyl acetate, and toluene.
5. The protective film according to claim 1, wherein the pressure-sensitive adhesive layer 4 is a silicone rubber.
6. A process for preparing a protective film using a thermoplastic elastomer according to any one of claims 1 to 5, comprising the steps of:
firstly, preparing a base layer (3);
secondly, coating the composite glue layer (2) on the upper side of the base layer (3), and feeding the base layer (3) into a first oven through a conveying roller, wherein the base layer (3) is attached to the anti-scratch layer (1) through a compression roller after coming out of the first oven;
thirdly, coating the pressure-sensitive adhesive layer (4) on the lower side of the base layer (3), feeding the base layer (3) into a second oven through a conveying roller, and attaching the base layer (3) to the attaching layer (5) through a compression roller after the base layer is discharged from the second oven;
and fourthly, cutting by using a cutting device.
7. A process for preparing a protective film of thermoplastic elastomer according to claim 6, wherein the preparation of the base layer (3) in step one comprises the following steps:
1) adding TPU raw material particles into a dryer for drying treatment;
2) taking a dried TPU raw material particle 86-93 component, an anti-hydrolysis agent 1-2 component, a light stabilizer 0.5-1 component and an antioxidant, and fully mixing in a mixing device according to the 0.5-1 component;
3) putting the mixture into an extrusion device to form a film in and out, performing calendering treatment when the TPU film is not shaped, and compounding a high-gloss PET film;
4) and cooling and shaping, and finally rolling to obtain a finished product.
8. The process for preparing a protective film of a thermoplastic elastomer as claimed in claim 6, wherein the process for preparing the base layer (3) in the first step is carried out in a dust-free environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811309298.9A CN111136967A (en) | 2018-11-05 | 2018-11-05 | Thermoplastic elastomer protective film and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811309298.9A CN111136967A (en) | 2018-11-05 | 2018-11-05 | Thermoplastic elastomer protective film and preparation process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111136967A true CN111136967A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811309298.9A Pending CN111136967A (en) | 2018-11-05 | 2018-11-05 | Thermoplastic elastomer protective film and preparation process thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885719A (en) * | 2016-05-17 | 2016-08-24 | 东莞市睿泰涂布科技有限公司 | TPU (thermoplastic polyurethane) explosion-proof membrane and preparation technique thereof |
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- 2018-11-05 CN CN201811309298.9A patent/CN111136967A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885719A (en) * | 2016-05-17 | 2016-08-24 | 东莞市睿泰涂布科技有限公司 | TPU (thermoplastic polyurethane) explosion-proof membrane and preparation technique thereof |
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Application publication date: 20200512 |