A waterproof plastic protective film

Abstract

The utility model discloses a waterproof type plastic protective film relates to plastic protective film technical field, including plastic protective film, plastic protective film is by composite bottom layer and composite top layer through hot melt adhesive coating adhesive process compression molding, forms double -deck composite structure, the composite top layer top is through the pressing mould hot -pressing process and is evenly arranged into a plurality of groups arc top surface, forms the drainage groove of the section of U type between two adjacent arc top surfaces, and the drainage groove is along plastic protective film length direction parallel distribution, is used for guiding the surface water quick discharge. The utility model double -deck composite structure is formed whole through hot melt adhesive compression, and the arc top surface of composite top layer is designed with U type drainage groove, and the surface silicon dioxide wear -resisting layer breaks the water flow tension, and the drainage groove hydrophilic coating accelerates the flow guide, can guide the surface water along the preset path quick discharge, avoids the water stain residual and local ponding, solves the problem of traditional plane structure waterproof deficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic protective film technology, specifically a waterproof plastic protective film. Background Technology

[0002] In many fields such as construction and electronic equipment protection, waterproof plastic protective films are widely used for the protection of various object surfaces due to their excellent waterproof performance. Currently, most of the waterproof plastic protective films on the market adopt a planar structure design. This structure, with its advantages of simple process and low production cost, has met basic waterproofing needs for a certain period of time.

[0003] However, in actual use, this planar waterproof plastic protective film has revealed significant defects, especially in terms of waterproofing and drainage. Due to the lack of effective drainage paths and space in the planar structure, water cannot be drained quickly, and water stains or local water accumulation areas are easily formed on the surface of the protective film. This not only reduces the waterproof effect of the protective film, but long-term water accumulation may also cause the surface of the protected object to become damp and moldy, affecting the service life of the object. In the case of electronic equipment protection, it may even cause serious malfunctions such as short circuits, which greatly limits the application of waterproof plastic protective films in high-end and complex environments. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a waterproof plastic protective film to solve the technical problems in the background art mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof plastic protective film, comprising a plastic protective film, wherein the plastic protective film is formed by pressing together a composite bottom layer and a composite top layer through a hot melt adhesive coating process to form a double-layer composite structure;

[0006] The bottom surface of the composite base layer is coated with an anti-slip coating, which is made of acrylic adhesive and rubber particles. This coating improves the adhesion stability between the plastic protective film and the surface of the protected object. Both the top and bottom composite layers are made of polyethylene, which meets the requirements of flexibility and strength in different scenarios.

[0007] The composite top layer is formed by uniformly arranging multiple sets of arc-shaped top surfaces through a hot pressing process using a pressing mold. A drainage channel with a U-shaped cross section is formed between two adjacent sets of arc-shaped top surfaces. The drainage channel is distributed parallel to the length of the plastic protective film to guide surface water to drain quickly. The inner surface of the drainage channel is coated with a hydrophilic coating through a plasma treatment process to improve the flow efficiency of water along the channel.

[0008] The arc-shaped top surface is coated with a wear-resistant layer, which is composed of small silica particles. The rough surface of the particles breaks the surface tension of the water flow and accelerates the water flow to converge into the drainage channel.

[0009] The edges of the plastic protective film are sealed using an ultrasonic welding process to prevent edge delamination and water seepage. This makes the protective film suitable for various scenarios such as building exterior wall protection and electronic equipment moisture protection, combining waterproof reliability with durability.

[0010] By adopting the above technical solution, the double-layer composite structure is formed into a whole by hot melt adhesive. The arc-shaped top surface and U-shaped drainage channel design of the composite top layer, combined with the surface silica wear-resistant layer to break the water flow tension and the hydrophilic coating of the drainage channel to accelerate the flow, can guide surface water to drain quickly along the preset path, avoid water stains and local water accumulation, and solve the problem of insufficient waterproofing of traditional planar structures.

[0011] Furthermore, the composite top layer is uniformly provided with multiple sets of reinforcing sheets corresponding to the positions of the arc-shaped top surface through an embedded composite process, and the reinforcing sheets are made of polyester fiber.

[0012] By adopting the above technical solution, the direction of the reinforcing sheet is aligned with the extension direction of the drainage channel, thereby enhancing the deformation resistance of the composite top layer.

[0013] Furthermore, the bottom of the composite top layer is uniformly fixed with multiple sets of tensile strips by a hot-pressing interlocking process. The tensile strips are polypropylene fiber strips with a rectangular cross-section. The interior of the composite bottom layer is provided with matching grooves that match the tensile strips. The depth of the matching grooves is consistent with the thickness of the tensile strips, forming a "convex-concave" interlocking structure.

[0014] By adopting the above technical solution, the arrangement direction of the tensile strips is perpendicular to the extension direction of the drainage channel, forming an orthogonal mesh tensile structure, which plays a role in resisting transverse and longitudinal tearing loads.

[0015] In summary, this utility model has the following beneficial effects: Through its composite structure and functional design, this waterproof plastic protective film significantly improves waterproofing and drainage capabilities as well as mechanical properties. The double-layer composite structure is formed as a whole by hot melt adhesive pressing. The arc-shaped top surface and U-shaped drainage channel design of the top layer, combined with the surface silica wear-resistant layer to break water flow tension and the hydrophilic coating of the drainage channel to accelerate drainage, can guide surface water to drain quickly along a preset path, avoiding water stains and localized water accumulation, thus solving the problem of insufficient waterproofing in traditional planar structures. Polyester fiber reinforcing sheets are embedded inside the top layer, aligned with the drainage channel, enhancing deformation resistance. Polypropylene fiber tensile strips are embedded between the composite layers in an orthogonal mesh structure, resisting lateral and longitudinal tearing loads and improving overall mechanical strength. In addition, the anti-slip coating on the bottom surface enhances the adhesion stability to the substrate, and ultrasonic welding at the edges forms a sealed edge to prevent water seepage. This makes the protective film suitable for various scenarios such as building exterior wall protection and electronic device moisture protection, combining waterproof reliability and durability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of point A;

[0018] Figure 3 This is a partially enlarged cross-sectional view of the present invention;

[0019] Figure 4 This is a partially enlarged exploded view of the present invention.

[0020] In the diagram: 1. Plastic protective film; 101. Composite bottom layer; 102. Composite top layer; 103. Curved top surface; 104. Reinforcing sheet; 105. Tensile strip; 106. Matching groove. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The embodiments of this utility model will be described below based on its overall structure. Example 1

[0023] like Figure 1-4 As shown, this embodiment focuses on a waterproof plastic protective film. Its structural design focuses on the waterproof and mechanical reinforcement of the composite layer. It is mainly composed of a composite bottom layer 101 and a composite top layer 102, which are pressed together by a hot melt adhesive coating process to form a double-layer composite structure.

[0024] The composite bottom layer 101 is made of polyethylene and coated with an anti-slip coating made of acrylic adhesive and rubber particles to improve the adhesion stability to the surface of the protected object.

[0025] The composite top layer 102 is also made of polyethylene. The top surface is formed by hot pressing with a pressing mold to form multiple sets of arc-shaped top surfaces 103. A drainage groove with a U-shaped cross section is formed between adjacent arc-shaped top surfaces to guide surface water out. The bottom surface is fixed with tensile strips 105 by hot pressing and embedding process, forming a "convex-concave" embedding structure with the matching grooves 106 of the composite bottom layer.

[0026] The arc-shaped top surfaces 103 of the composite top layer 102 are evenly arranged, and U-shaped drainage channels are formed between adjacent arc-shaped top surfaces 103. The drainage channels are distributed parallel to the length of the plastic protective film 1.

[0027] The surface of the arc-shaped top surface 103 is coated with a wear-resistant layer composed of small silica particles to break the surface tension of the water flow. The inner surface of the drainage channel is treated with plasma to form a hydrophilic coating, which improves the water flow guiding efficiency.

[0028] The composite top layer 102 is internally reinforced with multiple sets of polyester fiber reinforcing sheets 104 corresponding to the positions of the arc-shaped top surface 103 through an embedded composite process. The direction is consistent with the extension direction of the drainage groove, which enhances the deformation resistance of the composite top layer 102.

[0029] Tensile strip 105 is a polypropylene fiber strip, which is arranged in a direction perpendicular to the extension direction of the drainage channel to form an orthogonal mesh tensile structure to resist transverse and longitudinal tearing loads.

[0030] The edges of the plastic protective film 1 are sealed by ultrasonic welding to prevent edge delamination and water seepage, thus improving the overall waterproof performance.

[0031] Composite layer preparation

[0032] The bottom surface of the composite bottom layer 101 made of polyethylene is coated with an anti-slip coating. The coating is then dried to ensure firm adhesion. Meanwhile, the composite top layer 102 is hot-pressed and molded to form an arc-shaped top surface 103 and a drainage groove structure.

[0033] Functional structural treatment

[0034] A silica wear-resistant layer is sprayed onto the arc-shaped top surface 103 of the composite top layer 102 to enhance the surface roughness and break the water flow tension. The inner surface of the drainage channel is plasma treated to form a hydrophilic coating.

[0035] A polyester fiber reinforcing sheet 104 corresponding to the position of the arc-shaped top surface 103 is embedded inside the composite top layer 102 to ensure that the reinforcing sheet 104 is fully combined with the composite top layer 102. The polypropylene fiber tensile strip 105 is hot-pressed and embedded to the bottom of the composite top layer 102 and precisely fitted with the matching groove 106 of the composite bottom layer 101.

[0036] Overall composite and edge processing

[0037] The composite bottom layer 101 and the composite top layer 102 are pressed together by hot melt adhesive coating process to form a double-layer composite structure, ensuring tight bonding between the layers.

[0038] The edges of the plastic protective film 1 are welded using ultrasonic welding equipment to form a continuous sealed edge, thus completing the overall preparation.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A waterproof plastic protective film, characterized in that, The plastic protective film (1) is formed by pressing a composite bottom layer (101) and a composite top layer (102) together through a hot melt adhesive coating process to form a double-layer composite structure. The top surface of the composite top layer (102) is uniformly arranged and formed into multiple sets of arc-shaped top surfaces (103) by hot pressing process of pressing mold. A drainage channel with a U-shaped cross section is formed between two adjacent sets of arc-shaped top surfaces (103). The drainage channel is distributed parallel to the length direction of the plastic protective film (1) to guide the surface water to drain quickly.

2. The waterproof plastic protective film according to claim 1, characterized in that: The arc-shaped top surface (103) is coated with a wear-resistant layer, which is composed of small silica particles.

3. The waterproof plastic protective film according to claim 1, characterized in that: The composite top layer (102) is uniformly provided with multiple sets of reinforcing sheets (104) corresponding to the positions of the arc-shaped top surface (103) through an embedded composite process. The reinforcing sheets (104) are made of polyester fiber and their direction is consistent with the extension direction of the drainage groove.

4. The waterproof plastic protective film according to claim 1, characterized in that: The bottom of the composite top layer (102) is uniformly fixed with multiple sets of tensile strips (105) by hot pressing and embedding process. The tensile strips (105) are polypropylene fiber strips with a rectangular cross section. The interior of the composite bottom layer (101) is provided with matching grooves (106) that match the tensile strips (105). The depth of the matching grooves (106) is consistent with the thickness of the tensile strips (105), forming a "convex-concave" embedding structure.

5. The waterproof plastic protective film according to claim 4, characterized in that: The tensile strips (105) are arranged perpendicularly to the extension direction of the drainage channel, forming an orthogonal mesh tensile structure.

6. The waterproof plastic protective film according to claim 1, characterized in that: The bottom surface of the composite substrate (101) is coated with an anti-slip coating through a coating process.

7. The waterproof plastic protective film according to claim 1, characterized in that: Both the composite top layer (102) and the composite bottom layer (101) are made of polyethylene.

8. The waterproof plastic protective film according to claim 1, characterized in that: The inner surface of the drainage channel is coated with a hydrophilic coating through a plasma treatment process, which improves the flow efficiency of water along the channel.

9. The waterproof plastic protective film according to any one of claims 1-8, characterized in that: The edge of the plastic protective film (1) is sealed by ultrasonic welding.

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