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Packaging adhesive film for cross-linked POE (polyolefin elastomer) solar photovoltaic module

A solar photovoltaic and encapsulation adhesive film technology, applied in photovoltaic power generation, adhesives, electrical components, etc., to achieve the effect of ensuring long-term service life, good long-term service life, and excellent aging resistance

Active Publication Date: 2013-09-11
SHANGHAI HIUV NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operating temperature of solar photovoltaic modules may reach 80 degrees Celsius or even 90 degrees Celsius, which is already higher than or close to the melting point of the two, so the uncrosslinked POE film is subject to many restrictions in actual use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Element Proportion POE resin (copolymer of ethylene and butene) 96% Vinyltrimethoxysilane 2% γ-(Methacryloyloxy)propyltrimethoxysilane 1% Cross-linking agent 2,5-dimethyl-2,5 bis(tert-butylperoxy)hexane 1%

[0023] The above materials were granulated in a twin-screw to prepare silane-grafted POE resin A, and the processing temperature was 200°C. Then according to the following formula, it is extruded into a film through the T-die of a clothes hanger, and the temperature is 100°C. The thickness of the film was 0.2 mm.

[0024] Element Proportion Silane grafted POE resin A 98% Peroxide Crosslinker DCP 1% Crosslinking Auxiliary Triallyl Isocyanurate 0.5% anti aging agent 0.5%

Embodiment 2

[0026] Element Proportion POE resin (ethylene-octene copolymer) 99.65% Peroxide Crosslinker DCP 0.05% Vinyltrimethoxysilane 0.3%

[0027] The above materials were granulated in a twin-screw to prepare silane-grafted POE resin B, and the processing temperature was 180°C. Then directly mix the following materials evenly, and extrude through the T-die of a clothes hanger to form a film according to the following formula at a temperature of 90°C. The thickness of the film is 0.5 mm.

Embodiment 3

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PUM

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Abstract

The invention relates to a formula and a preparation method of a packaging adhesive film for a cross-linked POE (polyolefin elastomer) solar photovoltaic module. The main ingredient of the packaging adhesive film is silane grafted POE resin; and simultaneously, the packaging adhesive film further contains auxiliaries such as a cross-linking agent, a cross-linking assistant and an anti-aging agent. The preparation method comprises the following steps of: firstly preparing the silane grafted POE resin, then evenly mixing the grafted POE with the auxiliaries and then performing curtain coating through an extruder to obtain the adhesive film provided by the invention. After being vacuumized and hot-laminated, the cross-linking degree of the adhesive film reaches 70% or higher.

Description

technical field [0001] The invention belongs to the field of solar photovoltaic module encapsulation adhesive film formula and its preparation, in particular to the technical field of solar photovoltaic module adhesive film, specifically a cross-linked POE solar photovoltaic module adhesive film. Background technique [0002] Solar photovoltaic modules need to be packaged with a suitable adhesive film to protect the cells and connecting wires. The most common film is EVA film, which consists of ethylene-vinyl acetate copolymer (EVA) and a small amount of cross-linking agent, cross-linking aid, anti-aging agent and other functional additives. The VA (vinyl acetate) content of the EVA film is greater than 25% VA. The production of EVA with a content greater than 25% is difficult, and there are not many suppliers. The main suppliers include DuPont of the United States, Mitsui of Japan, TPC of Singapore, Lake Petrochemical of Korea, Formosa Plastics of Taiwan, and Taipoly. Sin...

Claims

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Application Information

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IPC IPC(8): C09J7/00C09J151/06C09J123/26C09J11/06C08F255/02H01L31/048
CPCY02E10/50
Inventor 李民
Owner SHANGHAI HIUV NEW MATERIALS
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