CN113528034A - Multifunctional protective film with stain resistance and high strength and preparation method thereof - Google Patents
Multifunctional protective film with stain resistance and high strength and preparation method thereof Download PDFInfo
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- CN113528034A CN113528034A CN202110614711.8A CN202110614711A CN113528034A CN 113528034 A CN113528034 A CN 113528034A CN 202110614711 A CN202110614711 A CN 202110614711A CN 113528034 A CN113528034 A CN 113528034A
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- 230000001681 protective effect Effects 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 60
- 238000000576 coating method Methods 0.000 claims abstract description 60
- 239000000758 substrate Substances 0.000 claims abstract description 53
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 22
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 36
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 36
- 239000003292 glue Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000004698 Polyethylene Substances 0.000 claims description 21
- 239000004743 Polypropylene Substances 0.000 claims description 21
- -1 polyethylene terephthalate Polymers 0.000 claims description 18
- 239000004417 polycarbonate Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 238000007639 printing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 229920002799 BoPET Polymers 0.000 claims description 7
- 150000002222 fluorine compounds Chemical class 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 6
- 229920006289 polycarbonate film Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 125000002934 2-oxopropylidene group Chemical group 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000003666 anti-fingerprint Effects 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000012994 photoredox catalyst Substances 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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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
-
- 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
- C09J7/405—Adhesives in the form of films or foils characterised by release liners characterised by the substrate of the release liner
-
- 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
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
-
- 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
- C09J2467/005—Presence of polyester in the release coating
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Abstract
The invention discloses a multifunctional protective film with stain resistance and high strength and a preparation method thereof, belonging to the technical field of screens of electronic equipment. A multifunctional protective film with anti-pollution and high strength comprises a substrate; a coating printed on one surface of the substrate; the separable PET release liner is arranged on the other surface of the base material; the frosted surface anti-fouling UV hardened layer has anti-fouling and anti-fingerprint capabilities, and a proper amount of silver nano particles are added into the base material, so that the hardness and the wear resistance of a screen are improved, and simultaneously, the diffraction rate, the light transmittance and the haze of a finished product protective film are kept at a better level, so that higher finish and brightness can be provided in actual use, the reasonable addition of the silver nano particles has very wide birefringence and transparency in the holographic projection use of the screen, and the reasonable addition of the silver nano particles has very high sensitivity to an external electric field and an optical field, so that better use experience is provided.
Description
Technical Field
The invention relates to the technical field of screens of electronic equipment, in particular to a multifunctional protective film with stain resistance and high strength and a preparation method thereof.
Background
With the rapid development of electronic technology, more people have electronic products, and the protective film can play the roles of beautifying the electronic products and prolonging the service life of the electronic products. Therefore, most electronic product owners use protective films.
The screen is used as an important component of various electronic communication devices, especially the touch screen has become a standard configuration of mobile phones, tablet computers and other high-end electronic devices, and in the life of today, the touch screen is not separated from everyone, people can touch the screen all the time, and fingerprints or scratches are often left on the screen in the using process, so that the smoothness and brightness of the screen are reduced, the transmission and diffraction efficiency of the screen is affected, and therefore, the pollution resistance and the protection capability of the electronic device screen are more and more important to improve.
Disclosure of Invention
The invention aims to solve the defect that in the prior art, the smoothness and the transmission efficiency are reduced due to the fact that fingerprints or scratches are easy to appear on a screen, and provides a multifunctional protective film with stain resistance and high strength and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multifunctional protective film with anti-pollution and high strength comprises a substrate;
a coating printed on one surface of the substrate;
separable PET is from type body liner, sets up the other surface of substrate.
In order to increase the buffering capacity and strength, it is preferable that the base material includes one or more of a PET film, a PI film, a PC film, a PP film, and a PE film, into which the silver nanoparticles are doped.
Preferably, the thickness of the coating is 2-10 μm.
A preparation method of a multifunctional protective film with stain resistance and high strength comprises the following steps:
step 1: carrying out surface plasma impact treatment on a base material including one or more of a PET (polyethylene terephthalate) film, a PI (polyimide) film, a PC (polycarbonate) film, a PP (polypropylene) film and a PE (polyethylene) film doped with silver nanoparticles by using a plasma processor on the surface of the base material by using nitrogen and 120KW power;
step 2: placing the treated substrate on an intaglio printing machine for frosted anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on a release surface of 75-micrometer transparent PET release base paper with a release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: and (3) adhering the release surface of the separable 75-micron transparent PET release liner on the non-coating surface of the substrate through the step 3, and winding the prepared product.
For finished film strength, it is preferred that the surface energy of the plasma-treated substrate in step 1 is 44 or more.
In order to have a strong gloss upon UV hardening, it is preferable that the coating composition in the step 2 is mainly silica, a fluorine compound and a modified acrylic copolymer.
Further, the printing thickness of the coating in the step 2 is controlled to be 2-10 μm.
In order to improve the environmental protection performance of the application, preferably, the high-viscosity environmental-protection water-based glue in the step 3 comprises the following main chemical components: C3H4O 2.
Further, the coating thickness of the high-viscosity environment-friendly water-based glue in the step 3 is 10-80 μm.
In order to ensure the adhesion effect of the release liner, further, the conditions of high-temperature drying in the step 3 are as follows: standing at 110 deg.C for 3 min.
Compared with the prior art, the invention provides a multifunctional protective film with stain resistance and high strength and a preparation method thereof, and the multifunctional protective film has the following beneficial effects:
1. the multifunctional protective film with the antifouling property and the high strength has the advantages that the thickness is increased by adopting one or more of base materials including a PET film, a PI film, a PC film, a PP film and a PE film, so that the buffering capacity and the strength are increased;
2. the preparation method of the multifunctional protective film with stain resistance and high strength has the advantages that the surface is frosted and stain resistant UV hardened layer, so that the multifunctional protective film has stain resistance and fingerprint resistance, the product is protected from being polluted, corroded and scratched in the using process, and the original bright and clean surface is protected;
3. according to the preparation method of the multifunctional protective film cylinder with stain resistance and high strength, the glue is high-viscosity environment-friendly water-based glue, and is safe and environment-friendly.
The device has the advantages that the part which is not involved is the same as or can be realized by the prior art, a proper amount of silver nano particles are added into the base material, the hardness and the wear resistance of the screen are improved, and simultaneously, the diffraction rate, the light transmittance and the haze of the finished product protective film are kept at a better level, so that higher smoothness and brightness can be provided in practical use, the reasonable addition of the silver nano particles has very wide birefringence and transparency in the holographic projection use of the screen, and the device has very high sensitivity to an applied electric field and an optical field, so that better use experience is provided.
Drawings
Fig. 1 is a schematic structural diagram of a multifunctional protective film with anti-fouling and high strength according to the present invention.
In the figure: 1. coating; 2. a substrate; 3. PET release liner.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, a multifunctional protective film with anti-fouling and high strength comprises a substrate 2; a coating layer 1 printed on one surface of the substrate; separable PET is from type body 3, sets up the other surface at the substrate.
The substrate 2 comprises one or more of a PET film, a PI film, a PC film, a PP film and a PE film doped with silver nanoparticles therein, and the thickness of the coating 2 is 2-10 μm, where the concentration of silver nanoparticles doped in each group of films in the substrate 2 is limited to 0.01-0.1 wt.%, and is maintained at 80 ℃ for 12 hours in a vacuum furnace to ensure better compatibility, thereby further improving the transmission and diffraction efficiency of the film.
A preparation method of a multifunctional protective film with stain resistance and high strength comprises the following steps:
step 1: carrying out surface plasma impact treatment on a base material 2 comprising one or more of a PET (polyethylene terephthalate) film, a PI (polyimide) film, a PC (polycarbonate) film, a PP (polypropylene) film and a PE (polyethylene) film doped with silver nanoparticles by using a plasma processor on the surface of the base material by using nitrogen and 120KW power;
step 2: placing the treated substrate 2 on an intaglio printing press for frosting anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on the release surface of the 75-micrometer transparent PET release base paper 3 with the release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: the release surface of the transparent PET release liner 3 with the diameter of 75 mu m which can be separated through the step 3 is adhered to the non-coating surface of the substrate 2, and the prepared product is coiled.
The surface energy of the substrate 2 treated by the plasma in the step 1 is not less than 44.
In step 2, the components of the coating 1 mainly comprise silicon dioxide, fluorine compounds and modified acrylic acid copolymer, and the printing thickness of the coating 1 in step 2 is controlled to be 2-10 mu m.
The main chemical components of the high-viscosity environment-friendly water-based glue in the step 3 are as follows: C3H4O2, the viscosity is more than or equal to 1.5kg/inf, the coating thickness of the high-viscosity environment-friendly water-based glue in the step 3 is 10-80 microns, and the high-temperature drying condition in the step 3 is as follows: standing at 110 deg.C for 3 min.
Example 1:
referring to fig. 1, in practical experiments, by changing the thickness of the UV hardening coating layer 2, the concentration of silver nanoparticles and the coating thickness of the environmentally-friendly aqueous adhesive, the optimal hardness, wear resistance and anti-fouling performance of the finished protective film are sought, and the multifunctional protective film with anti-fouling and high strength comprises a substrate 2; a coating layer 1 printed on one surface of the substrate; separable PET is from type body 3, sets up the other surface at the substrate.
The base material 2 includes one or more of a PET film, a PI film, a PC film, a PP film and a PE film doped with silver nanoparticles therein, and the thickness of the coating layer 2 is 2 μm, where the concentration of silver nanoparticles doped in each set of films in the base material 2 is limited to 0.01 and maintained at 80 ℃ for 12 hours in a vacuum furnace to ensure better compatibility thereof, thereby further improving the transmission and diffraction efficiency of the film.
A preparation method of a multifunctional protective film with stain resistance and high strength comprises the following steps:
step 1: carrying out surface plasma impact treatment on a base material 2 comprising one or more of a PET (polyethylene terephthalate) film, a PI (polyimide) film, a PC (polycarbonate) film, a PP (polypropylene) film and a PE (polyethylene) film doped with silver nanoparticles by using a plasma processor on the surface of the base material by using nitrogen and 120KW power;
step 2: placing the treated substrate 2 on an intaglio printing press for frosting anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on the release surface of the 75-micrometer transparent PET release base paper 3 with the release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: the release surface of the transparent PET release liner 3 with the diameter of 75 mu m which can be separated through the step 3 is adhered to the non-coating surface of the substrate 2, and the prepared product is coiled.
The surface energy of the substrate 2 treated by the plasma in the step 1 is not less than 44.
In step 2, the components of the coating 1 mainly comprise silicon dioxide, fluorine compounds and modified acrylic acid copolymer, and the printing thickness of the coating 1 in step 2 is controlled to be 2 mu m.
The main chemical components of the high-viscosity environment-friendly water-based glue in the step 3 are as follows: C3H4O2, wherein the coating thickness of the high-viscosity environment-friendly water-based glue in the step 3 is 10 microns, and the high-temperature drying condition in the step 3 is as follows: standing at 110 deg.C for 3 min.
Example 2:
referring to fig. 1, basically the same as the example 1, on the basis of which the thickness of the UV-hardening coating layer 2, the concentration of silver nanoparticles and the coating thickness of the environment-friendly aqueous adhesive are further changed in order to judge the hardness, wear resistance, anti-fouling and other properties in multiple directions, a multifunctional protective film with anti-fouling and high strength comprises a base material 2; a coating layer 1 printed on one surface of the substrate; separable PET is from type body 3, sets up the other surface at the substrate.
The substrate 2 comprises one or more of PET, PI, PC, PP and PE films with silver nanoparticles incorporated therein, and the thickness of the coating 2 is 5 μm, where the concentration of silver nanoparticles incorporated in each group of films in the substrate 2 is limited to 0.3 wt.% and maintained at 80 ℃ for 12 hours in a vacuum oven to ensure better compatibility and further improve the transmission and diffraction efficiency of the film.
A preparation method of a multifunctional protective film with stain resistance and high strength comprises the following steps:
step 1: carrying out surface plasma impact treatment on a base material 2 comprising one or more of a PET (polyethylene terephthalate) film, a PI (polyimide) film, a PC (polycarbonate) film, a PP (polypropylene) film and a PE (polyethylene) film doped with silver nanoparticles by using a plasma processor on the surface of the base material by using nitrogen and 120KW power;
step 2: placing the treated substrate 2 on an intaglio printing press for frosting anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on the release surface of the 75-micrometer transparent PET release base paper 3 with the release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: the release surface of the transparent PET release liner 3 with the diameter of 75 mu m which can be separated through the step 3 is adhered to the non-coating surface of the substrate 2, and the prepared product is coiled.
The surface energy of the substrate 2 treated by the plasma in the step 1 is not less than 44.
In step 2, the components of the coating 1 mainly comprise silicon dioxide, fluorine compounds and modified acrylic acid copolymer, and the printing thickness of the coating 1 in step 2 is controlled to be 5 mu m.
The main chemical components of the high-viscosity environment-friendly water-based glue in the step 3 are as follows: C3H4O2, the viscosity is more than or equal to 1.5kg/inf, the coating thickness of the high-viscosity environment-friendly water-based glue in the step 3 is 50 microns, and the high-temperature drying condition in the step 3 is as follows: standing at 110 deg.C for 3 min.
Example 3:
referring to fig. 1, basically the same as the example 1, on the basis of which the thickness of the UV-hardening coating layer 2, the concentration of silver nanoparticles and the coating thickness of the environment-friendly aqueous adhesive are further changed in order to judge the hardness, wear resistance, anti-fouling and other properties in multiple directions, a multifunctional protective film with anti-fouling and high strength comprises a base material 2; a coating layer 1 printed on one surface of the substrate; separable PET is from type body 3, sets up the other surface at the substrate.
The substrate 2 comprises one or more of PET, PI, PC, PP and PE films with silver nanoparticles incorporated therein, and the thickness of the coating 2 is 10 μm, where the concentration of silver nanoparticles incorporated in each group of films in the substrate 2 is limited to 0.1 wt.% and maintained at 80 ℃ for 12 hours in a vacuum oven to ensure better compatibility and further improve the transmission and diffraction efficiency of the film.
A preparation method of a multifunctional protective film with stain resistance and high strength comprises the following steps:
step 1: carrying out surface plasma impact treatment on a base material 2 comprising one or more of a PET (polyethylene terephthalate) film, a PI (polyimide) film, a PC (polycarbonate) film, a PP (polypropylene) film and a PE (polyethylene) film doped with silver nanoparticles by using a plasma processor on the surface of the base material by using nitrogen and 120KW power;
step 2: placing the treated substrate 2 on an intaglio printing press for frosting anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on the release surface of the 75-micrometer transparent PET release base paper 3 with the release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: the release surface of the transparent PET release liner 3 with the diameter of 75 mu m which can be separated through the step 3 is adhered to the non-coating surface of the substrate 2, and the prepared product is coiled.
The surface energy of the substrate 2 treated by the plasma in the step 1 is not less than 44.
In step 2, the components of the coating 1 mainly comprise silicon dioxide, fluorine compounds and modified acrylic acid copolymer, and the printing thickness of the coating 1 in step 2 is controlled to be 10 mu m.
The main chemical components of the high-viscosity environment-friendly water-based glue in the step 3 are as follows: C3H4O2, the viscosity is more than or equal to 1.5kg/inf, the coating thickness of the high-viscosity environment-friendly water-based glue in the step 3 is 80 microns, and the high-temperature drying condition in the step 3 is as follows: standing at 110 deg.C for 3 min.
Comparative example:
referring to fig. 1, in order to further study the influence of silver nanoparticles on the transmission and diffraction efficiency of the finished film in the actual test process, we say that the silver nanoparticles are removed but the original component and best embodiment data are retained, and the multifunctional protective film with anti-fouling and high strength comprises a substrate 2; a coating layer 1 printed on one surface of the substrate; separable PET is from type body 3, sets up the other surface at the substrate.
The substrate 2 includes one or more of a PET film, a PI film, a PC film, a PP film, and a PE film, and the thickness of the coating layer 2 is 5 μm.
A preparation method of a multifunctional protective film with stain resistance and high strength comprises the following steps:
step 1: carrying out surface plasma impact treatment on a substrate 2 comprising one or more of a PET film, a PI film, a PC film, a PP film and a PE film on the surface of the substrate by using a plasma processor with nitrogen and 120KW power;
step 2: placing the treated substrate 2 on an intaglio printing press for frosting anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on the release surface of the 75-micrometer transparent PET release base paper 3 with the release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: the release surface of the transparent PET release liner 3 with the diameter of 75 mu m which can be separated through the step 3 is adhered to the non-coating surface of the substrate 2, and the prepared product is coiled.
The surface energy of the substrate 2 treated by the plasma in the step 1 is not less than 44.
In step 2, the components of the coating 1 mainly comprise silicon dioxide, fluorine compounds and modified acrylic acid copolymer, and the printing thickness of the coating 1 in step 2 is controlled to be 5 mu m.
The main chemical components of the high-viscosity environment-friendly water-based glue in the step 3 are as follows: C3H4O2, the viscosity is more than or equal to 1.5kg/inf, the coating thickness of the high-viscosity environment-friendly water-based glue in the step 3 is 50 microns, and the high-temperature drying condition in the step 3 is as follows: standing at 110 deg.C for 3 min.
And (3) testing items:
1 hardness: testing by an electric pencil hardness tester;
2, wear resistance: after being tested by a rubber alcohol abrasion tester, the rubber alcohol abrasion tester rubs the 2kg test body back and forth for 10 times, and whether scratches exist or not is observed;
3 diffraction efficiency: YAG laser at 532 nm wavelength and 2 mm diameter;
4 transmittance: a light transmittance meter LS 11;
5 haze: WGW photoelectric haze meter.
Through parameter testing of the above examples and comparative examples, we obtained and tabulated the following data:
from the table data analysis it is possible to obtain: when a plurality of tests are carried out under the condition that the concentration of the silver nanoparticles is 0.01-0.1 wt.%, 0.03 wt.% is found to be the optimal concentration, and the thickness of the crystal layer of the base material 2 is kept at 25 μm, the diffraction rate, the light transmittance and the haze of the finished product protective film can be kept at better levels, so that higher smoothness and brightness can be provided in practical use, and in the reasonable situation that the thickness of the whole finished product protective film is kept, namely the data shown in example 2, both hardness and wear resistance tests have qualified test results, so that the phenomenon of residual fingerprints and even scratches during use can be effectively prevented.
For the comparative example without adding silver nano particles, the diffraction rate and the light transmittance of the comparative example can be visually observed to be poor, and experiments show that the reasonable addition of the silver nano particles has very wide birefringence and transparency in the holographic projection use of a screen, and has very high sensitivity to an applied electric field and an optical field, which is an important parameter characteristic in the holographic application and can effectively improve the holographic projection effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. A multifunctional protective film with anti-soil high strength, its characterized in that includes:
a substrate (2);
a coating (1) printed on one surface of the substrate;
separable PET is from type body paper (3), sets up in another surface of substrate.
2. The multifunctional protective film with stain-resistant high strength according to claim 1, wherein the substrate (2) comprises one or more of a PET film, PI film, PC film, PP film and PE film doped with silver nanoparticles inside.
3. The multifunctional protective film with anti-fouling and high strength as claimed in claim 2, characterized in that the thickness of the coating (2) is 2-10 μm.
4. A method for preparing the multifunctional protective film with anti-fouling and high strength according to claim 3, which comprises the following steps:
step 1: carrying out surface plasma impact treatment on a base material (2) comprising one or more of a PET (polyethylene terephthalate) film, a PI (polyimide) film, a PC (polycarbonate) film, a PP (polypropylene) film and a PE (polyethylene) film doped with silver nano particles by using a plasma processor on the surface of the base material by using nitrogen and 120KW power;
step 2: placing the treated substrate (2) on an intaglio printing machine for frosting anti-fouling UV hardening coating treatment;
and step 3: uniformly coating the high-viscosity environment-friendly water-based glue on a release surface of 75-micrometer transparent PET release base paper (3) with a release function by using professional scraper type coating equipment, and completely curing the glue through high-temperature drying;
and 4, step 4: and (3) adhering the release surface of the transparent PET release base paper (3) with the size of 75 mu m which can be separated in the step (3) to the non-coating surface of the substrate (2), and winding the prepared product.
5. The method for preparing the multifunctional protective film with antifouling and high strength as claimed in claim 4, wherein the surface energy of the substrate (2) treated by plasma in step 1 is not less than 44.
6. The method for preparing a multifunctional protective film with anti-fouling and high strength according to claim 4, wherein the coating (1) in the step 2 mainly comprises silica, fluorine compound and modified acrylic acid copolymer.
7. The method for preparing a multifunctional protective film with antifouling and high strength according to claim 6, wherein the printing thickness of the coating (1) in the step 2 is controlled to be 2-10 μm.
8. The method for preparing a multifunctional protective film with anti-fouling and high strength according to claim 4, wherein the main chemical components of the high-viscosity environment-friendly water-based glue in the step 3 are as follows: C3H4O 2.
9. The method for preparing a multifunctional protective film with antifouling property and high strength as claimed in claim 8, wherein the coating thickness of the high-viscosity environment-friendly water-based glue in step 3 is 10-80 μm.
10. The method for preparing a multifunctional protective film with anti-fouling and high strength according to claim 8 or 9, wherein the conditions of high temperature drying in step 3 are as follows: standing at 110 deg.C for 3 min.
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| CN202110614711.8A CN113528034A (en) | 2021-06-02 | 2021-06-02 | Multifunctional protective film with stain resistance and high strength and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851402A (en) * | 2010-05-28 | 2010-10-06 | 中国乐凯胶片集团公司 | High-transparency thick polyester film |
| CN106218158A (en) * | 2016-09-20 | 2016-12-14 | 东莞市纳利光学材料有限公司 | A kind of Multifunctional protective cuticula with anti-soil deodorization high intensity and preparation method thereof |
-
2021
- 2021-06-02 CN CN202110614711.8A patent/CN113528034A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851402A (en) * | 2010-05-28 | 2010-10-06 | 中国乐凯胶片集团公司 | High-transparency thick polyester film |
| CN106218158A (en) * | 2016-09-20 | 2016-12-14 | 东莞市纳利光学材料有限公司 | A kind of Multifunctional protective cuticula with anti-soil deodorization high intensity and preparation method thereof |
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Application publication date: 20211022 |