Solar panel high-temperature-resistant anti-ultraviolet self-adhesive film

Abstract

The invention provides a solar panel high-temperature-resistant anti-ultraviolet self-adhesive film. The self-adhesive film is formed by an outer layer, a middle layer and an inner layer through co-extrusion film blowing and is characterized in that by weight, the mass ratio of the outer layer to the middle layer to the inner layer is (10-20):(30-50):(30-60), the outer layer is a viscous layer made of POE, the middle layer is prepared by blending LDPE, MLLDPE and PP by the weight ratio of (4-1):(1-4):(1-5), and the inner layer is prepared by blending LDPE and PP by the weight ratio of (4-1):(1-3). Reasonable composition and matching are adopted in the self-adhesive film three-layer structure, viscosity of the self-adhesive film can meet requirements of clients, the self-adhesive film is good in high temperature resistance and stretchability, and good in ageing resistance under long-term ultraviolet irradiation compared with a glue coated film, and viscosity is enhanced little.

Description

technical field [0001] The invention belongs to the field of solar energy, and in particular relates to a high-temperature-resistant and ultraviolet-resistant self-adhesive film for a solar panel and a preparation method thereof. Background technique [0002] Due to the surface drawing and coating processing methods of solar panels, and the requirements for long-term use under strong ultraviolet rays. For a long time, its surface protection film has been coated with a layer of acrylic pressure-sensitive adhesive as a protective film on a PE base material. This type of protective film is very easy to accelerate aging under ultraviolet rays, and it is difficult to tear the film, and it is easy to have residues, resulting in such The yield rate of the board has been low. [0003] CN102241175A discloses a high-quality solar energy production increase greenhouse film, which includes a three-layer structure of an inner anti-fog layer, a middle layer anti-aging, anti-drip layer an...

AI Technical Summary

Problems solved by technology

For a long time, its surface protection film has been coated with a layer of acrylic pressure-sensitive adhesive as a protective film on a PE base material. This type of protective film is very easy to accelerate aging under ultraviolet rays, and it is difficult to tear the film, and it is easy to have residues, resulting in such The yield rate of the plate has been low

[0003] CN102241175A discloses a high-quality solar energy production increase greenhouse film, which includes a three-layer structure of an inner anti-fog layer, a middle layer anti-aging, anti-drip layer and an outer anti-aging layer. It is characterized in that the inner layer anti-fog layer, the middle layer anti-aging , anti-drip layer and outer anti-aging layer are prepared from the following components by weight: inner anti-fog layer: 100 parts of EVA, 25 parts of POE, 14 parts of inner masterbatch; middle layer of anti-aging, anti-flow Drip layer: 75 parts of EVA, 25 parts of POE, 25 parts of LDPE, 14 parts of middle layer masterbatch; Outer anti-aging layer: 50 parts of MLLDOE, 25 parts of POE, 50 parts of LDPE, 14 parts of outer masterbatch; in this technology More functional additives are added to the inner, middle and outer layer masterbatch to achieve anti-aging effect, and rare earth reagents are used. The technical formula is too complicated, and simple POE, LDPE, PP materials cannot be used to achieve anti-aging effect effect, and the self-adhesive film prepared using this technical formula and process is very difficult to tear, and the product effect is not good

EVA is added in this technology, and the high temperature resistance is not good. If EVA is not added, the adhesion of the self-adhesive film is poor, and it is not easy to stick or tear. This technology cannot achieve the effect of high temperature resistance and tear resistance.

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