CN117183533A - PET (polyethylene terephthalate) laminated card film and preparation method thereof - Google Patents
PET (polyethylene terephthalate) laminated card film and preparation method thereof Download PDFInfo
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- CN117183533A CN117183533A CN202311292275.2A CN202311292275A CN117183533A CN 117183533 A CN117183533 A CN 117183533A CN 202311292275 A CN202311292275 A CN 202311292275A CN 117183533 A CN117183533 A CN 117183533A
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- film layer
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- 229920000139 polyethylene terephthalate Polymers 0.000 title claims abstract description 76
- 239000005020 polyethylene terephthalate Substances 0.000 title claims abstract description 76
- -1 polyethylene terephthalate Polymers 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 104
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 239000012790 adhesive layer Substances 0.000 claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 claims abstract description 19
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 229920000728 polyester Polymers 0.000 claims abstract description 14
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 12
- 239000011358 absorbing material Substances 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 239000012745 toughening agent Substances 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 239000004698 Polyethylene Substances 0.000 claims abstract description 8
- 230000007062 hydrolysis Effects 0.000 claims abstract description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 8
- 229920000573 polyethylene Polymers 0.000 claims abstract description 8
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 8
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910000859 α-Fe Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 239000006230 acetylene black Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 7
- 238000009472 formulation Methods 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to the technical field of PET (polyethylene terephthalate) card films, in particular to a PET laminated card film and a preparation method thereof, wherein the card film consists of a PET base film layer, a shielding film layer on the upper surface of the PET base film layer, an electromagnetic shielding film layer on the upper surface of the shielding film layer and a laminated adhesive layer on the lower surface of the PET base film layer; the shielding film layer consists of a conductive material, a toughening agent, epoxy resin, silicone and polyethylene; the electromagnetic shielding film layer is composed of a carbon conductive material, a metal wave absorbing material and epoxy resin, the PET base film layer is of a co-extrusion structure, the PET base film layer comprises a polyester master batch in the middle, and hydrolysis resistant agents and nano metal materials are added to the upper surface layer and the lower surface layer of the polyester master batch. According to the invention, electromagnetic influence can be effectively shielded through the cooperative shielding effect of the conductive material of the shielding film layer, the carbon conductive material of the electromagnetic shielding film layer, the metal wave absorbing material and the nano metal material of the PET base film layer.
Description
Technical Field
The invention relates to the technical field of PET (polyethylene terephthalate) card films, in particular to a PET laminated card film and a preparation method thereof.
Background
Most of the adhesive films used in the card manufacturing industry are made of PVC, but the PVC contains halogen and is not high-temperature resistant, so that the requirements cannot be met in the high-end field, and the outlet is limited to a certain extent. Various forms of electromagnetic waves are filled in life, and the magnetic card is demagnetized and cannot be used; in the prior art, the problem of poor adhesion, poor heat resistance and the like is mostly solved, and the related technology for shielding electromagnetic waves is few, so that a card film is needed to solve the problem of electromagnetic wave demagnetization.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a PET (polyethylene terephthalate) laminated card film and a preparation method thereof to solve the problem.
In order to solve the technical problems, the invention adopts the following technical scheme: the PET laminated card film consists of a PET base film layer, a shielding film layer on the upper surface of the PET base film layer, an electromagnetic shielding film layer on the upper surface of the shielding film layer and a laminated adhesive layer on the lower surface of the PET base film layer;
the shielding film layer consists of a conductive material, a toughening agent, epoxy resin, silicone and polyethylene;
the electromagnetic shielding film layer is composed of a carbon conductive material, a metal wave absorbing material and epoxy resin.
As a further scheme of the invention, the PET base film layer is of a co-extrusion structure, the PET base film layer comprises a polyester master batch at the middle part, and hydrolysis resistance agents and nano metal materials are added to the upper surface layer and the lower surface layer of the polyester master batch.
As a further aspect of the present invention, the nano metal material includes nano silver and nano copper.
As a further scheme of the invention, the laminated adhesive layer is an aqueous polyurethane adhesive layer.
As a further scheme of the invention, the conductive material is nano silver or nano copper or nano nickel; the particle size of the nano silver or the nano copper or the nano nickel is 40-80nm.
As a further scheme of the invention, the toughening agent is liquid carboxyl end nitrile rubber or low molecular polyester or low molecular polyamide.
As a further scheme of the invention, the composition of the shielding film layer is as follows: 10-20 parts of conductive material, 5-10 parts of toughening agent, 40-60 parts of epoxy resin, 20-30 parts of silicone and 30-40 parts of polyethylene.
As a further scheme of the invention, the carbon conductive material is conductive carbon black or acetylene black or graphene; the metal wave absorbing material is nano ferrite or magnetic iron nano, and the particle size of the nano ferrite or the magnetic iron nano is 40-60nm.
As a further scheme of the invention, the electromagnetic shielding film layer comprises the following components: 4-8 parts of carbon conductive material, 10-20 parts of metal wave absorbing material and 70-80 parts of epoxy resin.
The preparation method of the PET laminated card film comprises the following specific steps:
firstly, producing a hydrolysis-resistant nano metal PET (polyethylene terephthalate) base film layer by adopting biaxial stretching, and respectively configuring online coating glue of a shielding film layer and an electromagnetic shielding film layer;
step two, online coating a shielding film layer and an electromagnetic shielding film layer by an online coating machine, and drying after transverse stretching;
and thirdly, coating a laminated adhesive layer offline, and rolling.
As the technical scheme is adopted, the invention has the advantages and positive effects that: the electromagnetic influence can be effectively shielded through the cooperative shielding effect of the conductive material of the shielding film layer, the carbon conductive material of the electromagnetic shielding film layer, the metal wave absorbing material and the nano metal material of the PET base film layer.
Detailed Description
Example 1
The invention relates to a PET (polyethylene terephthalate) laminated card film, which consists of a PET base film layer, a shielding film layer on the upper surface of the PET base film layer, an electromagnetic shielding film layer on the upper surface of the shielding film layer and a laminated adhesive layer on the lower surface of the PET base film layer; the shielding film layer consists of a conductive material, a toughening agent, epoxy resin, silicone and polyethylene;
the electromagnetic shielding film layer consists of a carbon conductive material, a metal wave absorbing material and epoxy resin;
wherein, PET base film layer is the coextrusion structure, PET base film layer's formula is:
the middle polyester master batch, wherein 97% polyester master batch, 2% polycarbodiimide and 1% nano silver are added to both surface layers; the composition of the shielding film layer is as follows:
the electromagnetic shielding film layer comprises the following components:
4 parts of conductive carbon black
10 parts of nano ferrite (40 nm)
70 parts of epoxy resin;
the laminated adhesive layer is an aqueous polyurethane adhesive layer.
The preparation method of the PET laminated card film comprises the following specific steps:
firstly, producing a hydrolysis-resistant nano metal PET (polyethylene terephthalate) base film layer by adopting biaxial stretching, and respectively configuring online coating glue of a shielding film layer and an electromagnetic shielding film layer;
step two, online coating a shielding film layer and an electromagnetic shielding film layer by an online coating machine, and drying after transverse stretching;
and thirdly, coating a laminated adhesive layer offline, and rolling.
Example 2
The invention relates to a PET (polyethylene terephthalate) laminated card film, which consists of a PET base film layer, a shielding film layer on the upper surface of the PET base film layer, an electromagnetic shielding film layer on the upper surface of the shielding film layer and a laminated adhesive layer on the lower surface of the PET base film layer;
the shielding film layer consists of a conductive material, a toughening agent, epoxy resin, silicone and polyethylene;
the electromagnetic shielding film layer consists of a carbon conductive material, a metal wave absorbing material and epoxy resin;
wherein, PET base film layer is the coextrusion structure, PET base film layer's formula is:
the middle polyester master batch, the 94% polyester master batch, the 3% polycarbodiimide and the 3% nano copper are added on the two surface layers; the composition of the shielding film layer is as follows:
the electromagnetic shielding film layer comprises the following components:
acetylene black 6 parts
15 parts of magnetic iron nano (50 nm)
75 parts of epoxy resin;
the laminated adhesive layer is an aqueous polyurethane adhesive layer.
The preparation method of the PET laminated card film comprises the following specific steps:
firstly, producing a hydrolysis-resistant nano metal PET (polyethylene terephthalate) base film layer by adopting biaxial stretching, and respectively configuring online coating glue of a shielding film layer and an electromagnetic shielding film layer;
step two, online coating a shielding film layer and an electromagnetic shielding film layer by an online coating machine, and drying after transverse stretching;
and thirdly, coating a laminated adhesive layer offline, and rolling.
Example 3
The invention relates to a PET (polyethylene terephthalate) laminated card film, which consists of a PET base film layer, a shielding film layer on the upper surface of the PET base film layer, an electromagnetic shielding film layer on the upper surface of the shielding film layer and a laminated adhesive layer on the lower surface of the PET base film layer;
the shielding film layer consists of a conductive material, a toughening agent, epoxy resin, silicone and polyethylene;
the electromagnetic shielding film layer consists of a carbon conductive material, a metal wave absorbing material and epoxy resin;
wherein, PET base film layer is the coextrusion structure, PET base film layer's formula is:
the polyester master batch in the middle part, and 90% of polyester master batch, 4% of polycarbodiimide and 6% of nano copper are added to both surface layers; the composition of the shielding film layer is as follows:
the electromagnetic shielding film layer comprises the following components:
8 parts of graphene
20 portions of nano ferrite (60 nm)
80 parts of epoxy resin
The laminated adhesive layer is an aqueous polyurethane adhesive layer.
The preparation method of the PET laminated card film comprises the following specific steps:
firstly, producing a hydrolysis-resistant nano metal PET (polyethylene terephthalate) base film layer by adopting biaxial stretching, and respectively configuring online coating glue of a shielding film layer and an electromagnetic shielding film layer;
step two, online coating a shielding film layer and an electromagnetic shielding film layer by an online coating machine, and drying after transverse stretching;
and thirdly, coating a laminated adhesive layer offline, and rolling.
Comparative example 1
The only difference from example 1 is that there is no nano silver in the formulation of the barrier film.
Comparative example 2
The difference from example 2 is that no magnetic iron nano-meter was present in the electromagnetic shielding film formulation.
Comparative example 3
The difference from example 3 is that the shielding film formulation has no nano nickel and the electromagnetic shielding film formulation has no nano ferrite.
The products are respectively placed in 30MHz-1GHz environments for shielding test.
Table 1 shows the performance tests of examples 1-3 and comparative examples 1-3
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Off-line coating weight | 0.05-0.1g/m 2 | 0.05-0.1g/m 2 | 0.05-0.1g/m 2 | 0.05-0.1g/m 2 | 0.05-0.1g/m 2 | 0.05-0.1g/m 2 |
| Surface tension | 48 dyne | 47 dyne | 47 dyne | 47 dyne | 47 dyne | 47 dyne |
| Adhesion force | Level 0 | Level 0 | Level 0 | Level 0 | Level 0 | Level 0 |
| Shielding efficiency | 68db | 77db | 86db | 33db | 31db | 10db |
As can be seen from table 1, the magnetic card can be effectively shielded from electromagnetic influence by the synergistic shielding effect of the shielding film layer, the electromagnetic shielding film layer and the PET base film layer, and from the demagnetizing influence.
While particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely illustrative, and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined only by the appended claims.
Claims (10)
1. A PET laminate card film characterized by: the clamping film consists of a PET base film layer, a shielding film layer on the upper surface of the PET base film layer, an electromagnetic shielding film layer on the upper surface of the shielding film layer and a laminated adhesive layer on the lower surface of the PET base film layer;
the shielding film layer consists of a conductive material, a toughening agent, epoxy resin, silicone and polyethylene;
the electromagnetic shielding film layer is composed of a carbon conductive material, a metal wave absorbing material and epoxy resin.
2. A PET laminate card film according to claim 1, characterized in that: the PET base film layer is of a co-extrusion structure, the PET base film layer comprises a polyester master batch in the middle, and hydrolysis resistance agents and nano metal materials are added to the upper surface layer and the lower surface layer of the polyester master batch.
3. A PET laminate card film according to claim 2, characterized in that: the nano metal material comprises nano silver and nano copper.
4. A PET laminate card film according to claim 1, characterized in that: the laminated adhesive layer is an aqueous polyurethane adhesive layer.
5. A PET laminate card film according to claim 1, characterized in that: the conductive material is nano silver or nano copper or nano nickel; the particle size of the nano silver or the nano copper or the nano nickel is 40-80nm.
6. A PET laminate card film according to claim 1, characterized in that: the toughening agent is liquid carboxyl terminated nitrile rubber or low molecular polyester or low molecular polyamide.
7. A PET laminate card film according to claim 1, characterized in that: the composition of the shielding film layer is as follows:
10-20 parts of conductive material
5-10 parts of toughening agent
40-60 parts of epoxy resin
20-30 parts of silicone
30-40 parts of polyethylene.
8. A PET laminate card film according to claim 1, characterized in that: the carbon conductive material is conductive carbon black or acetylene black or graphene; the metal wave absorbing material is nano ferrite or magnetic iron nano, and the particle size of the nano ferrite or the magnetic iron nano is 40-60nm.
9. A PET laminate card film according to claim 1, characterized in that: the electromagnetic shielding film layer comprises the following components:
4-8 parts of carbon conductive material
10-20 parts of metal wave-absorbing material
70-80 parts of epoxy resin.
10. A preparation method of a PET laminated card film is characterized by comprising the following steps: the method comprises the following specific steps:
firstly, producing a hydrolysis-resistant nano metal PET (polyethylene terephthalate) base film layer by adopting biaxial stretching, and respectively configuring online coating glue of a shielding film layer and an electromagnetic shielding film layer;
step two, online coating a shielding film layer and an electromagnetic shielding film layer by an online coating machine, and drying after transverse stretching;
and thirdly, coating a laminated adhesive layer offline, and rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311292275.2A CN117183533A (en) | 2023-10-08 | 2023-10-08 | PET (polyethylene terephthalate) laminated card film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311292275.2A CN117183533A (en) | 2023-10-08 | 2023-10-08 | PET (polyethylene terephthalate) laminated card film and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117183533A true CN117183533A (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311292275.2A Pending CN117183533A (en) | 2023-10-08 | 2023-10-08 | PET (polyethylene terephthalate) laminated card film and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039121A (en) * | 2013-03-08 | 2014-09-10 | 祝琼 | Wave-absorbing magnetic-conductive shielding film and manufacture method thereof |
| CN107236421A (en) * | 2017-07-19 | 2017-10-10 | 清华大学深圳研究生院 | A kind of electromagnetic screen coating |
| CN108171306A (en) * | 2017-12-27 | 2018-06-15 | 潘彦伶 | Intelligent cards |
| CN109161350A (en) * | 2018-09-18 | 2019-01-08 | 江西华莲欣科技有限公司 | A kind of highly-breathable is suitable for the electromagnetic shielding film and preparation method thereof of 5G |
| CN110699001A (en) * | 2019-10-12 | 2020-01-17 | 常州浩阳水性新材料有限公司 | PET (polyethylene terephthalate) laminated adhesive film for card tape |
| CN213694723U (en) * | 2021-06-15 | 2021-07-13 | 江西省康利泰信息科技有限公司 | Electromagnetic shielding film and circuit board containing same |
-
2023
- 2023-10-08 CN CN202311292275.2A patent/CN117183533A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039121A (en) * | 2013-03-08 | 2014-09-10 | 祝琼 | Wave-absorbing magnetic-conductive shielding film and manufacture method thereof |
| CN107236421A (en) * | 2017-07-19 | 2017-10-10 | 清华大学深圳研究生院 | A kind of electromagnetic screen coating |
| CN108171306A (en) * | 2017-12-27 | 2018-06-15 | 潘彦伶 | Intelligent cards |
| CN109161350A (en) * | 2018-09-18 | 2019-01-08 | 江西华莲欣科技有限公司 | A kind of highly-breathable is suitable for the electromagnetic shielding film and preparation method thereof of 5G |
| CN110699001A (en) * | 2019-10-12 | 2020-01-17 | 常州浩阳水性新材料有限公司 | PET (polyethylene terephthalate) laminated adhesive film for card tape |
| CN213694723U (en) * | 2021-06-15 | 2021-07-13 | 江西省康利泰信息科技有限公司 | Electromagnetic shielding film and circuit board containing same |
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