CN111995961A - graphene/PET composite film and preparation method thereof - Google Patents
graphene/PET composite film and preparation method thereof Download PDFInfo
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- CN111995961A CN111995961A CN202010876215.5A CN202010876215A CN111995961A CN 111995961 A CN111995961 A CN 111995961A CN 202010876215 A CN202010876215 A CN 202010876215A CN 111995961 A CN111995961 A CN 111995961A
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C08J2383/00—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
- C08J2383/04—Polysiloxanes
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- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- C09J2483/00—Presence of polysiloxane
- C09J2483/006—Presence of polysiloxane in the substrate
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Abstract
The invention discloses a preparation method of a high-toughness graphene/PET composite film, belonging to the technical field of composite film materials. Supreme release film, adhesive layer, graphite alkene silica gel layer and the PET rete of including in proper order down, the preparation step is: putting 62-65 parts by weight of silica gel, 7-11 parts by weight of toughening agent, 3-5 parts by weight of graphene, 14-17 parts by weight of nano hydrotalcite, 1-5 parts by weight of dispersing agent, 2-7 parts by weight of dicationic ionic liquid type surfactant and 0.1-1 part by weight of aminosilane coupling agent into a reactor, and stirring for 10-20min at the rotation speed of 200 plus materials and at the speed of 500 r/min; and then discharging and transferring the material to a screw extruder, blending, melting and extruding, and preparing the graphene/PET composite film composition in a flat extrusion casting mode. The high-toughness graphene/PET composite film disclosed by the invention has the advantages of improving the tensile strength and barrier property of a PET material.
Description
Technical Field
The invention relates to a preparation method of a high-toughness graphene/PET composite film, belonging to the technical field of composite film materials.
Background
PET has low production cost and excellent comprehensive performance, and has been widely used in a wide range of fields such as mechanical equipment, biomedicine, textile processing, food packaging, information industry, optical materials and the like, and PET is a crystalline thermoplastic resin with excellent performance, has ideal chemical stability and heat resistance, and is widely used for producing film packaging materials. But PET film material is used as packaging material
The material has poor gas barrier property and low strength and toughness.
Disclosure of Invention
The invention provides a graphene/PET composite film with high barrier property and a preparation method thereof by utilizing the excellent barrier property of the special structure of graphene,
the technical scheme adopted by the invention is as follows:
the utility model provides a graphite alkene/PET complex film, by supreme release film, adhesive layer, graphite alkene silica gel layer and the PET rete of including in proper order down, its characterized in that: the graphene silica gel layer is a composition of graphene and silica gel; the thickness of the graphene silica gel layer is 5-10 um; the thickness of the adhesive layer is 2-5 um;
the preparation method of the graphene/PET composite film comprises the following steps:
the graphene silica gel comprises the following components in percentage by weight:
62-65 parts of silica gel, 7-11 parts of toughening agent, 3-5 parts of graphene, 14-17 parts of nano hydrotalcite, 1-5 parts of dispersing agent, 2-7 parts of dicationic ionic liquid surfactant and 0.1-1 part of aminosilane coupling agent, and the raw materials are put into a reactor according to the proportion and stirred for 10-20min at the rotation speed of 200 plus materials and the speed of 500 r/min; then discharging and transferring the material to a screw extruder, blending, melting and extruding, and preparing the graphene silica gel composite membrane in a flat extrusion casting mode; the toughening agent is hydroxyl-terminated epoxy polyether, and the epoxy value of the toughening agent is 0.1-0.2; the nano hydrotalcite is one or two of nano magnesium aluminum hydrotalcite Mg-Al-LDHs or nano zinc aluminum hydrotalcite Zn-Al-LDHs; the dispersant is nano SO42-/ZrO2 powder; the technical scheme is further explained as follows: the dicationic ionic liquid surfactant is a dibenzyl benzimidazole ionic liquid surfactant; the technical scheme is further explained as follows: the aminosilane coupling agent is selected from one or two of phenylaminomethyl triethoxysilane, phenylaminomethyl trimethoxysilane or gamma-aminopropyltrimethoxysilane; the technical scheme is further explained as follows: the melt extrusion temperature was 180-220 ℃.
The invention has the characteristics of improving the tensile strength and the barrier property of the PET material and the like.
Drawings
Fig. 1 is a structural diagram of a graphene/PET composite film.
In the figure: release film 1, adhesive layer 2, graphite alkene silica gel layer 3 and PET rete 4.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in the figure, the structure diagram of the graphene/PET composite film comprises a release film 1, an adhesive layer 2, a graphene silica gel layer 3 and a PET film layer 4. The graphene silica gel layer is a composition of graphene and silica gel; the thickness of the graphene silica gel layer is 5-10 um, and the thickness of the adhesive layer is 2-5 um.
Example 1:
putting 64 parts by weight of silica gel resin, 9 parts by weight of end hydroxyl terminated epoxy polyether, 3.9 parts by weight of graphene, 16 parts by weight of nano zinc-aluminum hydrotalcite Zn-Al-LDHs, 4 parts by weight of nano SO42-/ZrO2 powder, 3 parts by weight of dibenzyl benzimidazole ionic liquid surfactant and 0.1 part by weight of phenylaminomethyl trimethoxy silane into a reactor, and stirring for 15min at the revolution speed of 300 r/min. And then discharging and transferring the material to a screw extruder, blending, melting and extruding, and carrying out composite membrane of graphene and silica gel in a flat extrusion casting manner.
Example 2:
putting 62 parts by weight of silica gel resin, 11 parts by weight of end hydroxyl terminated epoxy polyether, 4 parts by weight of graphene, 17 parts by weight of nano magnesium aluminum hydrotalcite Mg-Al-LDHs, 1.5 parts by weight of nano SO42-/ZrO2 powder, 4 parts by weight of dibenzyl benzimidazole ionic liquid surfactant and 0.5 part by weight of gamma-aminopropyltrimethoxysilane into a reactor, and stirring for 10min at the revolution of 200 r/min. And then discharging and transferring the material to a screw extruder, blending, melting and extruding, and preparing the graphene/PET composite film composition in a flat extrusion casting mode.
Basic Performance test
Helium and oxygen barrier performance testing by differential pressure method
As can be seen from the data in Table 1: (1) the graphene/PET composite film material disclosed by the embodiment of the invention has excellent helium and oxygen resistance.
Mechanical Property test
From the data of table 2, the following conclusions can be drawn:
the finished product of the embodiment has higher mechanical property, which is particularly represented by strong tensile strength and high elongation at break. The reason is that the added graphene and the solid filler hydrotalcite are both reinforcing materials and have good compatibility with a system. In addition, under the existence of the active hydroxyl-terminated epoxy polyether toughening agent, the transverse and longitudinal tensile strength and the transverse and longitudinal elongation at break of the graphene/PET composite film material are further improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a graphite alkene/PET complex film, supreme down includes in proper order from type membrane, adhesive layer, graphite alkene silica gel layer and PET rete, its characterized in that: the graphene silica gel layer is a composition of graphene and silica gel; graphene silica gel layer thickness be 5um-10um, adhesive layer thickness be 2-5 um.
2. A preparation method of a graphene/PET composite film is characterized by comprising the following steps: the preparation steps are as follows: the graphene silica gel comprises the following components in percentage by weight:
62-65 parts of silica gel, 7-11 parts of toughening agent, 3-5 parts of graphene, 14-17 parts of nano hydrotalcite, 1-5 parts of dispersing agent, 2-7 parts of dicationic liquid surfactant, 0.1-1 part of amino silane coupling agent,
the raw materials are put into a reactor according to the proportion and stirred for 10-20min at the rotation speed of 200-; then discharging and transferring the material to a screw extruder, blending, melting and extruding, and preparing the graphene silica gel composite membrane in a flat extrusion casting mode; the toughening agent is hydroxyl-terminated epoxy polyether, and the epoxy value of the toughening agent is 0.1-0.2; the nano hydrotalcite is one or two of nano magnesium aluminum hydrotalcite Mg-Al-LDHs or nano zinc aluminum hydrotalcite Zn-Al-LDHs; the dispersant is nano SO42-/ZrO2 powder.
3. The method for preparing the graphene/PET composite film according to claim 2, wherein: the dicationic liquid surfactant is a dibenzyl benzimidazole ionic liquid surfactant.
4. The method for preparing the graphene/PET composite film according to claim 2, wherein: the aminosilane coupling agent is selected from one or two of phenylaminomethyl triethoxysilane, phenylaminomethyl trimethoxysilane or gamma-aminopropyltrimethoxysilane.
5. The method for preparing the graphene/PET composite film according to claim 2, wherein: the melt extrusion temperature was 180-220 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010876215.5A CN111995961A (en) | 2020-08-27 | 2020-08-27 | graphene/PET composite film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010876215.5A CN111995961A (en) | 2020-08-27 | 2020-08-27 | graphene/PET composite film and preparation method thereof |
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| CN111995961A true CN111995961A (en) | 2020-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373007A (en) * | 2019-09-02 | 2019-10-25 | 苏州宇希新材料科技有限公司 | A kind of preparation method of high tenacity graphene/compound film composition of PET |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358270A (en) * | 2019-09-02 | 2019-10-22 | 苏州宇希新材料科技有限公司 | A kind of high tenacity graphene/compound film composition of PET |
| CN110373007A (en) * | 2019-09-02 | 2019-10-25 | 苏州宇希新材料科技有限公司 | A kind of preparation method of high tenacity graphene/compound film composition of PET |
| CN110452463A (en) * | 2019-09-05 | 2019-11-15 | 安徽省聚科石墨烯科技股份公司 | A kind of modified graphite alkene plastics and preparation method |
-
2020
- 2020-08-27 CN CN202010876215.5A patent/CN111995961A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358270A (en) * | 2019-09-02 | 2019-10-22 | 苏州宇希新材料科技有限公司 | A kind of high tenacity graphene/compound film composition of PET |
| CN110373007A (en) * | 2019-09-02 | 2019-10-25 | 苏州宇希新材料科技有限公司 | A kind of preparation method of high tenacity graphene/compound film composition of PET |
| CN110452463A (en) * | 2019-09-05 | 2019-11-15 | 安徽省聚科石墨烯科技股份公司 | A kind of modified graphite alkene plastics and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373007A (en) * | 2019-09-02 | 2019-10-25 | 苏州宇希新材料科技有限公司 | A kind of preparation method of high tenacity graphene/compound film composition of PET |
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