Moisture resistant photovoltaic paper

Abstract

The utility model discloses a kind of moisture-proof photovoltaic paper, belong to photovoltaic paper technical domain, including substrate layer and the multiple layer composite moisture-proof medium of setting in substrate layer top surface, the bottom surface of substrate layer is equipped with reinforcing damp-proof layer, the bottom surface of reinforcing damp-proof layer is also equipped with adhesive layer through the setting of multiple layer composite moisture-proof medium and reinforcing damp-proof layer, when actually using, substrate layer provides the basic mechanical strength and carrier function of paper, usually adopt high-strength fiber such as wood pulp fiber, glass fiber or bamboo fiber, reduce corrosive substance by desulfurization, bleaching and other processes, can be through hot-pressing or wet forming to improve compactness, reduce internal porosity, multiple layer composite moisture-proof medium can reduce hygroscopicity, barrier water vapor penetration, prevent external humidity invasion or internal moisture escape, without drying, so that energy consumption can be greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic paper technology, and specifically relates to a moisture-proof photovoltaic paper. Background Technology

[0002] Photovoltaic glass spacer paper, also known as anti-mildew spacer paper, is a paper packaging material specifically designed to protect and isolate photovoltaic glass. Among many types of glass, photovoltaic glass has attracted much attention due to its unique application in solar power generation. This type of glass typically comes in different thicknesses such as 2mm, 2.5mm, 3mm, and 4mm, and is an indispensable component of photovoltaic modules. The existence of anti-mildew spacer paper is precisely to ensure the safety and cleanliness of these high-performance glasses during transportation and storage. Photovoltaic glass spacer paper, also known as anti-mildew spacer paper, plays an important role in photovoltaic modules. It is cleverly placed between two photovoltaic glass panes to provide effective isolation and protection. This design not only prevents scratches caused by friction during transportation, but also plays a crucial role in high-temperature and high-humidity environments, effectively preventing contamination caused by mold growth on the glass surface. In addition, the working surface of photovoltaic glass is coated with a substance called molten glass, which has a softness hardness greater than 4H, and the spacer paper is precisely placed between the glass coating surface and the tempered tin-plated glass surface. In this way, even if the photovoltaic glass is laid flat during transportation, it can be ensured that there will be no obvious scratches or adhering substances on the glass surface, thus guaranteeing the high quality and high performance of the photovoltaic modules.

[0003] In the existing technology, existing coatings, which apply hydrophobic materials (such as waxes) and achieve surface hydrophobicity through chemical modification, have a good moisture-proof effect. However, they have poor temperature resistance and are prone to melting and failure at high temperatures, causing the paper to fall off the photovoltaic glass during transportation, leaving the photovoltaic glass unprotected. Utility Model Content

[0004] The purpose of this invention is to provide a moisture-proof photovoltaic paper to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: it includes a substrate layer and a multi-layer composite moisture-proof medium disposed on the top surface of the substrate layer, wherein a reinforced moisture-proof layer is provided on the bottom surface of the substrate layer;

[0005] The bottom surface of the reinforced moisture-proof layer is also provided with an adhesive layer.

[0006] It should be noted in the solution that the substrate layer is a high-strength fiber, and the interior of the substrate layer has a pore distribution that is dense inside and sparse outside.

[0007] It should be noted in the solution that the multi-layer composite moisture-proof medium includes a dense layer, and the surface of the dense layer is covered with a nano-coating.

[0008] It should be noted in the solution that the reinforced moisture-proof layer is aluminum foil.

[0009] It should be noted in the solution that the adhesive layer is a solvent-free adhesive.

[0010] Compared with the prior art, the moisture-proof photovoltaic paper provided by this utility model has at least the following beneficial effects:

[0011] (1) By setting up a multi-layer composite moisture-proof medium and a reinforced moisture-proof layer, the substrate layer provides the basic mechanical strength and carrier function of the paper during use. High-strength fibers (such as wood pulp fiber, glass fiber or bamboo fiber) are usually used. Corrosive substances are reduced through desulfurization, bleaching and other processes. Density can be improved by hot pressing or wet forming to reduce internal pores. The multi-layer composite moisture-proof medium can reduce the moisture absorption rate, block water vapor penetration, and prevent external moisture from entering or internal moisture from escaping. The adhesive layer can use 00% solid content adhesive, which does not require drying and reduces energy consumption.

[0012] (2) By setting a dense layer, the dense layer is a polyethylene (PE), polypropylene (PP) or polyester (PET) film. A polyethylene (PE), polypropylene (PP) or polyester (PET) film is laminated on the surface of the substrate to form a physical moisture barrier. A physical moisture barrier can be formed. A hydrophobic material, such as a nano-silica coating, is coated on the surface of the dense layer. The surface is hydrophobic through chemical modification. Attached Figure Description

[0013] Figure 1 This is a front view cross-sectional structural diagram of the product of this utility model.

[0014] In the diagram: 1. Substrate layer; 2. Dense layer; 3. Reinforced moisture-proof layer; 4. Adhesive layer. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 A moisture-proof photovoltaic paper includes a substrate layer 1 and a multi-layer composite moisture-proof medium disposed on the top surface of the substrate layer 1. The bottom surface of the substrate layer 1 is provided with a reinforced moisture-proof layer 3, and the bottom surface of the reinforced moisture-proof layer 3 is also provided with an adhesive layer 4.

[0017] By using a multi-layered composite moisture-proof medium and a reinforced moisture-proof layer 3, the substrate layer 1 provides the paper with basic mechanical strength and carrier function during use. It typically uses high-strength fibers (such as wood pulp fiber, glass fiber, or bamboo fiber), and reduces corrosive substances through desulfurization, bleaching, and other processes. It can improve density and reduce internal porosity through hot pressing or wet forming. The multi-layered composite moisture-proof medium can reduce moisture absorption, block water vapor penetration, and prevent external moisture from entering or internal moisture from escaping. The adhesive layer 4 can use 100% solids content adhesive, eliminating the need for drying and reducing energy consumption.

[0018] Furthermore, referring to Figure 1 As shown, it is worth noting that the substrate layer 1 is made of high-strength fiber, and the interior of the substrate layer 1 has a pore distribution that is dense inside and sparse outside.

[0019] By setting the substrate layer 1, the substrate layer 1 has a gradient pore structure. The substrate layer 1 is designed with a pore distribution that is dense inside and sparse outside, which reduces the moisture permeation rate.

[0020] Furthermore, referring to Figure 1 As shown, it is worth noting that the multi-layer composite moisture-proof medium includes a dense layer 2, the surface of which is covered with a nano-coating.

[0021] By setting a dense layer 2, which is a polyethylene (PE), polypropylene (PP) or polyester (PET) film, a physical moisture barrier is formed by laminating a polyethylene (PE), polypropylene (PP) or polyester (PET) film onto the substrate surface. A hydrophobic material, such as a nano-silica coating, is coated on the surface of the dense layer 2 to achieve surface hydrophobicity through chemical modification.

[0022] Furthermore, referring to Figure 1 As shown, it is worth noting that the reinforced moisture-proof layer 3 is aluminum foil.

[0023] By adding a reinforced moisture-proof layer 3, the aluminum foil can prevent moisture and oxygen, block light and UV rays, resist tearing and puncture, and adapt to high-speed filling and transportation impacts.

[0024] Furthermore, referring to Figure 1 As shown, it is worth noting that the adhesive layer 4 is a solvent-free adhesive.

[0025] By using the adhesive layer 4, 100% solids content adhesive is used, eliminating the need for drying and reducing energy consumption.

[0026] The present invention provides a moisture-proof photovoltaic paper. Specific preferred embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely for the purpose of helping to understand the principles and core ideas of the present invention. It should be noted that, for those skilled in the art, the implementation schemes in the above embodiments can be further combined or replaced without departing from the design concept of the present invention, and several improvements and modifications can be made to the present invention. These improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A moisture-proof photovoltaic paper, characterized in that: It includes a substrate layer (1) and a multi-layer composite moisture-proof medium disposed on the top surface of the substrate layer (1), wherein the bottom surface of the substrate layer (1) is provided with a reinforced moisture-proof layer (3); The bottom surface of the reinforced moisture-proof layer (3) is also provided with an adhesive layer (4).

2. The moisture resistant photovoltaic paper of claim 1, wherein: The substrate layer (1) is made of high-strength fiber, and the interior of the substrate layer (1) has a pore distribution that is dense inside and sparse outside.

3. The moisture resistant photovoltaic paper of claim 2, wherein: The multi-layer composite moisture-proof medium includes a dense layer (2), the surface of which is covered with a nano-coating.

4. The moisture resistant photovoltaic paper of claim 3, wherein: The reinforced moisture-proof layer (3) is aluminum foil.

5. The moisture resistant photovoltaic paper of claim 4, wherein: The adhesive layer (4) is a solvent-free adhesive.

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