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

A solar panel and anti-ultraviolet technology, applied in the field of solar energy, can solve problems such as poor adhesion of self-adhesive film, poor high temperature resistance, accelerated aging, etc., achieve high temperature resistance and stretchability, and do not produce secondary pollution. Good effect of aging resistance

Active Publication Date: 2016-08-24
GUANGDONG DONGLI NEW MATERIALS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Preparation of self-adhesive film

[0028] It is processed by a three-layer co-extrusion blown film machine. 15kgPOE is added to the outer hopper, 12kgLDPE, 12kg MLLDPE and 16kg PP are added to the middle hopper, and 25kgLDPE and 20kgPP are added to the inner hopper. The temperature of the layer screw is 180-190°C, the temperature of the middle layer screw is 175-185°C, the temperature of the inner layer screw is 165-175°C, the temperature of the die head is 190-200°C, the speed of the outer layer screw is 250rpm, and the temperature of the middle layer screw The rotating speed is 345rpm, and the rotating speed of the inner layer screw is 360rpm, extruded by a three-layer co-extrusion blown film machine, and blown into a tube film with a thickness of 130um by the outer, middle and inner three-layer co-extrusion through the die head; The self-adhesive film A with a thickness of 100 μm was obtained after cutting and winding separately.

Embodiment 2

[0030] It is processed by a three-layer co-extrusion blown film machine. Add 15kgPOE to the outer hopper, add 8kgLDPE, 12kg MLLDPE and 10kg PP to the middle hopper, add 35kgLDPE and 25kgPP to the inner hopper; The temperature of the layer screw is 180-190°C, the temperature of the middle layer screw is 175-185°C, the temperature of the inner layer screw is 165-175°C, the temperature of the die head is 190-200°C, the speed of the outer layer screw is 250rpm, and the temperature of the middle layer screw The rotating speed is 345rpm, and the rotating speed of the inner layer screw is 360rpm, extruded by a three-layer co-extrusion blown film machine, and blown into a tube film with a thickness of 132um by the outer, middle and inner three-layer co-extrusion through the die head; The self-adhesive film B with a thickness of 100 μm was obtained after cutting and winding separately.

Embodiment 3

[0032] It is processed by a three-layer co-extrusion blown film machine. Add 15kgPOE to the outer hopper, add 21kgLDPE, 13kg MLLDPE and 16kg PP to the middle hopper, add 14kgLDPE and 16kgPP to the inner hopper; The temperature of the layer screw is 180-190°C, the temperature of the middle layer screw is 175-185°C, the temperature of the inner layer screw is 165-175°C, the temperature of the die head is 190-200°C, the speed of the outer layer screw is 250rpm, and the temperature of the middle layer screw The rotating speed is 345rpm, and the rotating speed of the inner layer screw is 360rpm, extruded by a three-layer co-extrusion blown film machine, and blown into a tube film with a thickness of 128um by the outer, middle and inner three-layer co-extrusion through the die head; The self-adhesive film C with a thickness of 100 μm was obtained after cutting and winding separately.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B7/10B32B33/00C08L23/12C08L23/06C08L23/08B29C47/00B29C47/06B29C55/28B29L7/00B29L9/00
CPCB29C48/023B29C48/21B29C55/28B29L2007/002B29L2009/00B32B7/10B32B27/08B32B27/32B32B33/00B32B2250/242B32B2307/306B32B2307/54B32B2307/552C08L23/06C08L23/0815C08L23/12C08L2201/08C08L2203/16C08L2205/02C08L2205/03C08L2207/066
Inventor 唐承明
Owner GUANGDONG DONGLI NEW MATERIALS SCI & TECH CO LTD
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