Double-layer anti-static weather-resistant self-adhesive screen heat dissipation protective film

Abstract

The utility model discloses a double-layer anti-static weather-resistant self-adhesive screen heat dissipation protective film which comprises a base material layer, a first anti-static layer and a second anti-static layer are respectively arranged on the upper surface and the lower surface of the base material layer, a silica gel layer and a release film layer are sequentially arranged on the lower surface of the second anti-static layer, and the release film layer is arranged on the lower surface of the first anti-static layer and the lower surface of the second anti-static layer. A PU (polyurethane) adhesive layer and a hardened layer are arranged above the first antistatic layer. The first anti-static layer and the second anti-static layer are respectively arranged on the upper side and the lower side of the base material layer, and the PU adhesive layer and the release film layer which have an anti-static effect are arranged, so that the anti-static property of the protective film is improved, in addition, the hardened layer is further arranged to improve the wear resistance of the protective film, the protective film can play a role in protecting an attached product, and the service life of the protective film is prolonged. The effects of good exhaust performance and weather resistance are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective film, especially to a double -layer anti -static weather -resistant self -adhesion screen heat dissipation protective film. BACKGROUND

[0002] In the production process of OLED module products, it is usually necessary to attach a heat dissipation film (scf tape) to the back of the OLED panel. In OLED technology, SCF generally refers to a surface conductive film. This technology plays a crucial role in improving the performance of OLED display screens. SCF technology involves the use of a conductive layer, usually made of materials such as copper foil, to improve the electrical connection and efficiency of OLED display screens.

[0003] Because static electricity is generated during the production of OLED modules, static electricity exists at the heat dissipation film. The copper foil and other materials on the heat dissipation film cannot completely discharge static electricity, thereby affecting the effect of the heat dissipation film on the OLED module. SUMMARY

[0004] The utility model aims at overcoming the insufficient in prior art, provide a double -layer anti -static weather -resistant self -adhesion screen heat dissipation protective film.

[0005] The utility model aims at overcoming the insufficient in prior art, provide a double -layer anti -static weather -resistant self -adhesion screen heat dissipation protective film.

[0006] A double -layer anti -static weather -resistant self -adhesion screen heat dissipation protective film, comprising: substrate layer, the upper and lower surfaces of substrate layer are equipped with first antistatic layer and second antistatic layer respectively, the lower surface of second antistatic layer is equipped with silica gel layer and release film layer in proper order, the upper of first antistatic layer is equipped with PU glue layer and hardening layer.

[0007] In one embodiment, the substrate layer is made of PET material, and the thickness of the substrate layer is 30-60 microns.

[0008] In one embodiment, the substrate layer is filled with a toughening agent filler, which is one of butadiene styrene rubber, polyurethane, and modified glass fiber.

[0009] In one embodiment, the first and second antistatic layers are formed by coating an antistatic coating composed of acrylic resin and conductive filler onto the upper and lower surfaces of the substrate layer.

[0010] In one embodiment, the thickness of the first and second antistatic layers is 10-20 microns.

[0011] In one of the embodiments, the silica gel layer is arranged below the second antistatic layer, one side of the silica gel layer is attached to the second antistatic layer, and the thickness of the silica gel layer is 10-20 microns.

[0012] In one of the embodiments, the release film layer is attached to the side of the silica gel layer away from the second antistatic layer, the release film layer comprises a release agent layer, a base film layer and an antistatic agent layer arranged in sequence, the base film layer is made of PET material, and the thickness of the release film layer is 60-80 microns.

[0013] In one of the embodiments, the PU adhesive layer is arranged between the hardening layer and the first antistatic layer, and the thickness of the PU adhesive layer is 5-10 microns.

[0014] In one of the embodiments, the PU adhesive layer is filled with 2-4% antistatic agent.

[0015] In one of the embodiments, the hardening layer is an acrylate composition, and the thickness of the hardening layer is 2-6 microns.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The weather-resistant self-adhesive screen heat dissipation protective film with double-layer anti-static function of the utility model has the first antistatic layer and the second antistatic layer arranged on the upper and lower sides of the base material layer, the PU adhesive layer and the release film layer with the anti-static effect, so that the anti-static property of the protective film is improved, in addition, the hardening layer is arranged to improve the wear resistance of the protective film, so that the protective film can protect the attached product, and has the effects of good air exhaust and weather resistance. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments.

[0019] Figure 1 The structure diagram of the weather-resistant self-adhesive screen heat dissipation protective film with double-layer anti-static function provided by the utility model is shown.

[0020] BRIEF DESCRIPTION OF DRAWINGS: 10, base material layer;20, first antistatic layer;30, second antistatic layer;40, silica gel layer;50, release film layer;51, release agent layer;52, base film layer;53, antistatic agent layer;60, PU adhesive layer;70, hardening layer. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the utility model, the following will comprehensively describe the utility model with reference to the related drawings.

[0022] The utility model discloses a double -layer anti -static weather -resistant self -adhesive screen heat dissipation protective film, refer to Figure 1 , including substrate layer 10, the upper and lower surfaces of substrate layer 10 are equipped with first antistatic layer 20 and second antistatic layer 30 respectively, the lower surface of second antistatic layer 30 is equipped with silica gel layer 40 and release film layer 50 in proper order, the top of first antistatic layer 20 is equipped with PU glue layer 60 and hardening layer 70.

[0023] Further, refer to Figure 1 , substrate layer 10 adopts PET material, and substrate layer 10 made of PET material has the advantages of good stability, high smoothness and transparency of film surface and good temperature resistance and weather resistance. The thickness of substrate layer 10 is 30-60 μm.

[0024] Further, refer to Figure 1 , substrate layer 10 is filled with toughening agent filling, and 0.2-0.4% of toughening agent filling is added to substrate layer 10 to increase the toughness and strength of substrate layer 10. It should be noted that the toughening agent filling is one of butadiene styrene rubber, polyurethane and modified glass fiber. The toughness of substrate layer 10 is increased by filling the toughening agent filling in substrate layer 10, so that the weather resistance of the protective film is improved.

[0025] Further, refer to Figure 1 , first antistatic layer 20 and second antistatic layer 30 are both coated by antistatic paint mixed by acrylic resin and conductive filler on the upper and lower surfaces of substrate layer 10 to form first antistatic layer 20 and second antistatic layer 30 respectively. The thickness of first antistatic layer 20 and second antistatic layer 30 is both 10-20 μm. It should be noted that acrylic resin itself has conductivity, and the conductivity of the antistatic paint is further increased by mixing the conductive filler with the acrylic resin, so that first antistatic layer 20 and second antistatic layer 30 can effectively release static electricity and prevent static electricity accumulation, thereby achieving the effect of antistatic. First antistatic layer 20 and second antistatic layer 30 are arranged on the upper and lower sides of substrate layer 10 respectively to achieve double antistatic effect, so as to achieve the effects of antistatic and protection on the heat dissipation film when the protective film is attached to the heat dissipation film.

[0026] It should be noted that substrate layer 10 is connected with first antistatic layer 20 and second antistatic layer 30 by corona treatment, which is a kind of electric shock treatment, so that the surface of the printing material has higher adhesion, thereby strengthening the connection strength of substrate layer 10 with first antistatic layer 20 and second antistatic layer 30.

[0027] Further, refer to Figure 1The silica gel layer 40 is arranged below the second antistatic layer 30, one side of the silica gel layer 40 is attached to the second antistatic layer 30, and the silica gel layer 40 is used to be attached to the heat dissipation film of the product. It should be noted that the thickness of the silica gel layer 40 is 10-20 microns. By attaching the silica gel layer 40 to the product, the adhesion is good and easy to tear off, and there is no residual glue after peeling, and the silica gel layer 40 also has excellent air exhaust performance.

[0028] Further, referring to Figure 1 The release film layer 50 is attached to the side of the silica gel layer 40 away from the second antistatic layer 30, and the release film layer 50 comprises a release agent layer 51, a base film layer 52 and an antistatic agent layer 53 arranged in sequence, wherein the base film layer 52 is made of PET material, and the antistatic agent layer 53 is used to improve the antistatic effect of the release film layer 50. By adding the antistatic agent layer 53 in the release film layer 50, the antistatic effect of the protective film is improved. It should be noted that the thickness of the release film layer 50 is 60-80 microns.

[0029] Further, referring to Figure 1 The PU adhesive layer 60 is located between the hardening layer 70 and the first antistatic layer 20, and the PU adhesive plays a role in bonding the hardening layer 70 and the first antistatic layer 20. The PU adhesive is coated on the first antistatic layer 20 to form the PU adhesive layer 60. The PU adhesive is a high-performance water-based polyurethane adhesive, and the PU adhesive layer 60 has good adsorption and stability, so that the hardening layer 70 and the base material layer 10 are fixedly connected. It should be noted that the thickness of the PU adhesive layer 60 is 5-10 microns.

[0030] In one embodiment, the PU adhesive layer 60 is filled with 2-4% antistatic agent to enhance the antistatic property of the protective film.

[0031] Further, referring to Figure 1 The hardening layer 70 is an acrylate composition, such as epoxy acrylate resin, polyurethane acrylate resin, polyether acrylate resin, etc. The hardening layer 70 has good wear resistance and scratch resistance, and can provide good protection for the attached product. It should be noted that the thickness of the hardening layer 70 is 2-6 microns.

[0032] The utility model discloses a protective film, which comprises a base material layer 10, a first antistatic layer 20 and a second antistatic layer 30 arranged on the upper and lower sides of the base material layer 10, a silica gel layer 40 arranged below the second antistatic layer 30, a PU adhesive layer 60 and a release film layer 50 arranged on the upper and lower sides of the base material layer 10, and a hardening layer 70 arranged between the PU adhesive layer 60 and the first antistatic layer 20.

[0033] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film, characterized in that, include: The substrate layer (10) has a first antistatic layer (20) and a second antistatic layer (30) on its upper and lower surfaces, respectively. The lower surface of the second antistatic layer (30) is provided with a silicone layer (40) and a release film layer (50) in sequence. The first antistatic layer (20) is provided with a PU adhesive layer (60) and a hardening layer (70) above it.

2. The double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film according to claim 1, characterized in that, The substrate layer (10) is made of PET material and the thickness of the substrate layer (10) is 30μm-60μm.

3. The double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film according to claim 2, characterized in that, The substrate layer (10) is filled with a toughening filler, which is one of styrene-butadiene rubber, polyurethane, or modified glass fiber.

4. The double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film according to claim 1, characterized in that, The first antistatic layer (20) and the second antistatic layer (30) are both formed by coating the upper and lower surfaces of the substrate layer (10) with an antistatic coating made of acrylic resin and conductive filler.

5. The double-layer antistatic weather-resistant self-adhesive screen heat dissipation protective film according to claim 4, characterized in that, The thickness of the first antistatic layer (20) and the second antistatic layer (30) is 10μm-20μm.

6. The double-layer antistatic weather-resistant self-adhesive screen heat dissipation protective film according to claim 1, characterized in that, The silicone layer (40) is disposed below the second antistatic layer (30), and one side of the silicone layer (40) is attached to the second antistatic layer (30). The thickness of the silicone layer (40) is 10μm-20μm.

7. The double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film according to claim 1, characterized in that, The release film layer (50) is attached to the silicone layer (40) on the side away from the second antistatic layer (30). The release film layer (50) includes a release agent layer (51), a base film layer (52) and an antistatic agent layer (53) stacked in sequence. The base film layer (52) is made of PET material. The thickness of the release film layer (50) is 60μm-80μm.

8. The double-layer antistatic weather-resistant self-adhesive screen heat dissipation protective film according to claim 1, characterized in that, The PU adhesive layer (60) is located between the hardened layer (70) and the first antistatic layer (20), and the thickness of the PU adhesive layer (60) is 5μm-10μm.

9. A double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film according to claim 8, characterized in that, The PU adhesive layer (60) is filled with 2%-4% antistatic agent.

10. A double-layer antistatic, weather-resistant, self-adhesive screen heat dissipation protective film according to claim 1, characterized in that, The hardened layer (70) is an acrylate composition, and the thickness of the hardened layer (70) is 2μm-6μm.

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