CN112358821A - PETG self-adhesion protection film - Google Patents
PETG self-adhesion protection film Download PDFInfo
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- CN112358821A CN112358821A CN202011130281.4A CN202011130281A CN112358821A CN 112358821 A CN112358821 A CN 112358821A CN 202011130281 A CN202011130281 A CN 202011130281A CN 112358821 A CN112358821 A CN 112358821A
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- adhesive protective
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- 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
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
-
- 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
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C09J123/0815—Copolymers of ethene with aliphatic 1-olefins
-
- 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
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
- C09J153/025—Vinyl aromatic monomers and conjugated dienes modified
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- 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
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
-
- 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
- C09J2453/00—Presence of block copolymer
-
- 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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention provides a PETG self-adhesion protective film, and relates to the technical field of self-adhesion protective films. The PETG self-adhesive protective film comprises an adhesive layer and a back layer, wherein the adhesive layer comprises a thermoplastic elastomer material SEBS or a polyolefin elastomer POE, the back layer comprises PET modified materials PETG and SiO2The novel formula of the opening agent overcomes the problems of low melt strength, high difficulty of a blow molding process and high brittleness of a blow molded product of the traditional PET material. Moreover, the PETG self-adhesive protective film provided by the invention is more environment-friendly, and also has very high rigidity, hardness, good toughness and excellent processing and forming performance.
Description
Technical Field
The invention relates to the technical field of self-adhesive protective films, in particular to a PETG self-adhesive protective film.
Background
The protective film is a plastic film used for protecting the surface of a product from being damaged in the processes of storage, transportation and processing. The material is divided into: has PE, PET, PP and PVC, and is divided according to the material of the glue layer: comprises a glue coating film and a self-adhesive film.
The current PET protective film is mainly coated with glue due to the limitation of production process technology, the production process is not environment-friendly, and the problems of easy pollution to the surface of a product, difficult film tearing and the like exist in the use process. The self-adhesive film is made of macromolecular self-adhesive materials, is prepared by a co-extrusion integral forming technology through a blow molding process, is more environment-friendly, and is not adhesive residue and easy to tear in the using process. Obviously, the comprehensive performance of the PET self-adhesion protective film is better than that of a PET gluing protective film.
However, because of the low melt strength of PET materials, the difficulty of the blow molding process is high and the brittleness of the blow molded articles is high.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a PETG self-adhesion protective film, which solves the technical problems that in the prior art, the PET material has low melt strength, the adopted blow molding process has higher difficulty and the blow molded product has high brittleness.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the PETG self-adhesive protective film comprises an adhesive layer and a back layer, wherein the adhesive layer comprises a thermoplastic elastomer material SEBS or a polyolefin elastomer POE, the back layer comprises PET modified materials PETG and SiO2An opening agent.
Preferably, the PET modified material PETG is polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol, and the intrinsic viscosity of the polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol is 0.7 dl/g.
Preferably, the SEBS is a hydrogenated styrene-butadiene block copolymer, the density of the hydrogenated styrene-butadiene block copolymer is 0.92g/cm3, and the melt index is 13.0g/10 min.
Preferably, the density of the POE is 0.882g/cm3The melt index was 6.5g/10 min.
Preferably, the SiO2The opening agent is an opening agent AB905, the average particle diameter of the opening agent AB905 is 6.8 mu m, and SiO in the opening agent AB9052The content of (A) is more than 99.5%.
Preferably, the sum of the thicknesses of the adhesive layer and the back layer in the PETG self-adhesive protective film is 30-50 um.
Preferably, the thickness ratio of the adhesive layer to the back layer in the PETG self-adhesive protective film is 1: 1.
(III) advantageous effects
The invention provides a PETG self-adhesion protective film. Compared with the prior art, the method has the following beneficial effects: the adhesive layer in the PETG self-adhesive protective film comprises a thermoplastic elastomer material SEBS or a polyolefin elastomer POE, and the back layer comprises PET modified materials PETG and SiO2The novel formula of the opening agent overcomes the problems of low melt strength, high difficulty of a blow molding process and high brittleness of a blow molded product of the traditional PET material. Moreover, the PETG self-adhesive protective film provided by the invention is more environment-friendly, and also has very high rigidity, hardness, good toughness and excellent processing and forming performance.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but 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.
The embodiment of the application solves the technical problems that the melt strength of a PET material is low, the difficulty of a blow molding process is high, the brittleness of a blow molding product is high, the PETG self-adhesion protective film is more environment-friendly, the PETG self-adhesion protective film also has high rigidity, hardness and good toughness, and the processing and forming performance is excellent.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
the PETG self-adhesive protective film provided by the embodiment of the invention comprises an adhesive layer made of thermoplastic elastomer material SEBS or polyolefin elastomer POE, and a back layer made of PET modified material PETG and SiO2The novel formula of the opening agent overcomes the problems of low melt strength, high difficulty of a blow molding process and high brittleness of a blow molded product of the traditional PET material. Moreover, the PETG self-adhesive protective film provided by the invention is more environment-friendly, and also has very high rigidity, hardness, good toughness and excellent processing and forming performance.
In order to better understand the above technical solutions, the following detailed descriptions will be provided according to specific embodiments.
The embodiment of the invention provides a PETG self-adhesive protective film, which comprises an adhesive layer and a back layer, wherein the adhesive layer comprises a thermoplastic elastomer material SEBS or a polyolefin elastomer POE, and the back layer comprises PET modified materials PETG and SiO2An opening agent.
The PETG self-adhesion protective film overcomes the problems of low melt strength, high difficulty of a blow molding process and high brittleness of blow molding products of the traditional PET material. The PETG self-adhesive protective film provided by the invention is more environment-friendly, and also has very high rigidity, hardness, good toughness and excellent processing and forming performance.
The PET modified material PETG is polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester, and the intrinsic viscosity of the polyethylene glycol terephthalate-1, 4-cyclohexane dimethanol ester is 0.7 dl/g.
The SEBS is a hydrogenated styrene-butadiene block copolymer, the density of the hydrogenated styrene-butadiene block copolymer is 0.92g/cm3, and the melt index of the hydrogenated styrene-butadiene block copolymer is 13.0g/10 min.
The density of the POE is 0.882g/cm3The melt index was 6.5g/10 min.
The SiO2The opening agent is an opening agent AB905, the average particle diameter of the opening agent AB905 is 6.8 mu m, and SiO in the opening agent AB9052The content of (A) is more than 99.5%.
The sum of the thicknesses of the adhesive layer and the back layer in the PETG self-adhesive protective film is 30-50 um.
The thickness ratio of the adhesive layer to the back layer in the PETG self-adhesive protective film is 1: 1.
Specifically, the raw material-related physical parameters of the PETG self-adhesive protective film provided by the embodiment of the present invention are shown in the following table.
Example 1:
the embodiment of the invention provides a PETG self-adhesion protective film which comprises an adhesive layer A and a back layer B.
Wherein the A bonding layer comprises 100% SEBS and is 40um thick; the B back layer comprises 97% of PETG and 3% of opening agent AB905 in percentage by mass, and the thickness is 40 um.
Example 2:
the embodiment of the invention provides a PETG self-adhesion protective film which comprises an adhesive layer A and a back layer B.
Wherein, the A bonding layer comprises 100% POE, and the thickness is 40 um; the B back layer comprises 97% of PETG and 3% of opening agent AB905 in percentage by mass, and the thickness is 40 um.
Testing of the materials:
the product effect test was carried out using a common PET self-adhesive protective film product with a thickness of 0.04mm as in the above examples 1 and 2, and the following effect comparison table was obtained:
the PETG material is a transparent plastic, which is an amorphous copolyester, and the common comonomer of the PETG is 1, 4-Cyclohexanedimethanol (CHDM), which is fully called polyethylene terephthalate-1, 4-cyclohexanedimethanol ester. The product is a product obtained by polycondensation of terephthalic acid (TPA), Ethylene Glycol (EG) and 1, 4-Cyclohexanedimethanol (CHDM) through an ester exchange method, 1, 4-cyclohexanedimethanol comonomer is added compared with PET, and ethylene glycol comonomer is added compared with PCT, so that the performance of PETG is greatly different from PET and PCT.
The PETG self-adhesive protective film provided by the invention is prepared by adopting a two-layer co-extrusion film blowing technology, and specifically comprises the following steps:
s1, blending, namely mixing and uniformly stirring the raw material of the back layer B by using a raw material stirrer;
s2, drying: drying the mixed raw material of the back layer B by using a drying device at the drying temperature of 65 ℃ for 6 hours;
s3, absorbing materials: different automatic material suction devices respectively suck the raw materials of the adhesive layer A and the back layer B and convey the raw materials to a single-screw extruder a and a single-screw extruder B;
the single screw extruder a is provided with a heating zone Z01, a heating zone Z02, a heating zone Z03, a heating zone Z04, a heating zone Z05 and a heating zone Z06, and the temperatures of the heating zone Z01, the heating zone Z02, the heating zone Z03, the heating zone Z04, the heating zone Z05 and the heating zone Z06 are respectively set to 95 ℃, 120 ℃, 135 ℃, 150 ℃, 160 ℃ and 175 ℃;
the b single screw extruder is provided with a heating area Z01, a heating area Z02, a heating area Z03, a heating area Z04, a heating area Z05 and a heating area Z06, and the temperatures of the heating area Z01, the heating area Z02, the heating area Z03, the heating area Z04, the heating area Z05 and the heating area Z06 are respectively set to 185 ℃, 202 ℃, 210 ℃, 215 ℃, 222 ℃ and 218 ℃;
s4, plasticizing and extruding: melting and plasticizing the raw materials of the adhesive layer A and the back layer B by respective extrusion units, filtering by a filter screen, and conveying to a die head;
s5, blowing and shaping: the plasticized adhesive layer A and the back layer B are converged and sprayed out at a die orifice, blown up by a wind ring, cooled and shaped;
s6, traction and rolling: after the film is shaped, the film is drawn, trimmed and rolled.
The embodiment of the invention adopts the blow molding process to prepare the PETG self-adhesive protective film, thereby reducing the equipment investment cost.
In summary, compared with the prior art, the method has the following beneficial effects:
1. the PETG self-adhesive protective film provided by the embodiment of the invention comprises an adhesive layer made of thermoplastic elastomer material SEBS or polyolefin elastomer POE, and a back layer made of PET modified material PETG and SiO2The novel formula of the opening agent overcomes the problems of low melt strength, high difficulty of a blow molding process and high brittleness of a blow molded product of the traditional PET material. Moreover, the PETG self-adhesive protective film provided by the invention is more environment-friendly, and also has very high rigidity, hardness, good toughness and excellent processing and forming performance.
2. The embodiment of the invention adopts the blow molding process to prepare the PETG self-adhesive protective film, thereby reducing the equipment investment cost.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The PETG self-adhesion protection film is characterized by comprising an adhesive layer and a back layer, wherein the adhesive layer comprises a thermoplastic elastomer material SEBS or a polyolefin elastomer POE, and the back layer comprises PET modified materials PETG and SiO2An opening agent.
2. The PETG self-adhesive protective film as claimed in claim 1, wherein the PET modified material PETG is polyethylene terephthalate-1, 4-cyclohexane dimethanol ester, and the intrinsic viscosity of the polyethylene terephthalate-1, 4-cyclohexane dimethanol ester is 0.7 dl/g.
3. The PETG self-adhesive protective film according to claim 1, wherein the SEBS is a hydrogenated styrene-butadiene block copolymer, the hydrogenated styrene-butadiene block copolymer has a density of 0.92g/cm3 and a melt index of 13.0g/10 min.
4. The PETG self-adhesive protective film as claimed in claim 1, wherein the POE has a density of 0.882g/cm3The melt index was 6.5g/10 min.
5. The PETG self-adhesive protective film according to claim 1, wherein the SiO is2The opening agent is an opening agent AB905, the average particle diameter of the opening agent AB905 is 6.8 mu m, and SiO in the opening agent AB9052The content of (A) is more than 99.5%.
6. The PETG self-adhesive protective film according to claim 1, wherein the sum of the thicknesses of the adhesive layer and the back layer in the PETG self-adhesive protective film is 30-50 um.
7. The PETG self-adhesive protective film as claimed in any one of claims 1 to 6, wherein the thickness ratio of the adhesive layer to the back layer in the PETG self-adhesive protective film is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011130281.4A CN112358821A (en) | 2020-10-21 | 2020-10-21 | PETG self-adhesion protection film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011130281.4A CN112358821A (en) | 2020-10-21 | 2020-10-21 | PETG self-adhesion protection film |
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| CN202011130281.4A Pending CN112358821A (en) | 2020-10-21 | 2020-10-21 | PETG self-adhesion protection film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248885A (en) * | 2021-06-10 | 2021-08-13 | 河北恒塑丝网制造有限公司 | Wind-proof sand-inhibiting net based on PETG material |
| CN114058283A (en) * | 2021-11-23 | 2022-02-18 | 永生运佳(宣城)薄膜科技有限公司 | High-temperature-resistant self-adhesive protective film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114058283A (en) * | 2021-11-23 | 2022-02-18 | 永生运佳(宣城)薄膜科技有限公司 | High-temperature-resistant self-adhesive protective film and preparation method thereof |
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