Black ethylene vinyl acetate (EVA) material for packaging solar cell modules

A solar cell and black technology, which is applied in electrical components, circuits, photovoltaic power generation, etc., can solve problems that cannot meet the needs of the market, and achieve excellent photoelectric conversion efficiency, small temperature difference, and excellent thermal conductivity.

Inactive Publication Date: 2013-06-05
JIANGSU SVECK NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increasing use of solar cell components, the diversity of colors required for solar cell components in buildings and the introduction of double-glass components, ordinary white translucent EVA film-encapsulated solar components have been unable to meet the needs of the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A single-layer 0.5mm thick black EVA film includes: 96% octene-modified polyethylene, 2.65% vinyl triperoxy-tert-butylsilane, 0.1% bis(2,2,6,6 - tetramethyl-4-piperidinyl) sebacate, 0.25% of 2-hydroxy-4-n-octyloxybenzophenone;

[0026] Add carbon black: add insulating carbon black whose mass fraction is 0.5% of the total components to the above components, mix and stir;

[0027] Extrusion process: The screw speed is 85 rpm, the temperature of the four heating zones is 125°C, 125°C, 125°C, and 135°C, respectively, and then cast into a film at the head.

Embodiment 2

[0029] Single-layer 0.5mm thick black EVA film includes: 94% ethylene-propylene copolymer by mass fraction, 1.5% ethyl 3,3-di(tert-butylperoxy)butyrate, 0.5% trihydroxy Methylpropane trimethacrylate, 2.65% vinyl triperoxy tert-butylsilane, 0.1% bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 0.25% of 2-hydroxy-4-n-octyloxybenzophenone;

[0030] Add carbon black: add insulating carbon black whose mass fraction is 2% of the total components to the above components, mix and stir;

[0031] Extrusion process: the screw speed is 85 rpm, and the temperatures of the four heating zones are 115°C, 115°C, 115°C, and 120°C respectively, and then cast into a film at the machine head.

Embodiment 3

[0033] Single-layer 0.5mm thick black EVA film includes: 94% butene-modified ethylene by mass fraction, 1.5% ethyl 3,3-di(tert-butylperoxy)butyrate, 0.5% trihydroxy Methylpropane trimethacrylate, 2% vinyl triperoxy tert-butylsilane, 0.2% bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 0.3% of 2-hydroxy-4-n-octyloxybenzophenone;

[0034] Add carbon black: add insulating carbon black whose mass fraction is 3% of the total components to the above components, mix and stir;

[0035] Extrusion process: the screw speed is 85 rpm, and the temperatures of the four heating zones are 115°C, 115°C, 115°C, and 120°C respectively, and then cast into a film at the machine head.

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PUM

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Abstract

The invention discloses a black ethylene vinyl acetate (EVA) material for packaging solar cell modules. 0.5%-5% of insulativity carbon black is added in components of convention EVA film products. The preparative black EVA material can be applied in cell surfaces, double-face glass components and the like and has an excellent volume resistivity.

Description

technical field [0001] The invention relates to a black EVA material used for packaging of solar battery components, which is used in the solar energy industry, and is particularly suitable for packaging of solar battery components. Background technique [0002] In the 21st century, with the increasing global population and the increasing energy consumption dominated by fossil fuels, CO in the atmosphere 2 The content of carbon dioxide has risen sharply, causing a serious greenhouse effect, causing climate anomalies, frequent disasters, and seriously threatening the human living environment and social development. Therefore, there is an urgent need to utilize clean energy all over the world. On the other hand, fossil fuels are non-renewable energy, and the earth reserves are very limited. It is estimated that oil can only last for 50-80 years, and coal can only last for 200-300 years. There will be a crisis of energy depletion in the near future. Therefore, the development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/04H01L31/048
CPCY02E10/50
Inventor 赵世界韩鹏唐铭徽
Owner JIANGSU SVECK NEW MATERIAL
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