Solar energy battery back board packaging material and preparation method thereof

A technology of solar cells and packaging materials, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of high cost and complicated preparation process, and achieve the effect of excellent performance and simple preparation process
CN101037584AInactive Publication Date: 2007-09-19ε‘¨ε‡εŽ
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ε‘¨ε‡εŽ
Publication Date
2007-09-19
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

The invention relates to a solar cell backboard packaging material and preparing method thereof. Components and weight quotient of the solar cell backboard packaging material are: PET resin of 40-60 quotient, polyamide of 20-40 quotient, polyvinyl fluoride of 15-25 quotient, titanium pigment of 0.5-2 quotient, anti-aging agent of 0.5-2 quotient, and EVA resin of 10-30 quotient. The preparing method includes steps: (1) mixing the PET resin, the polyamide, the polyvinyl fluoride, the titanium pigment and the anti-aging agent equally, drying, heating, extruding, and stretching to basal film; (2) coating the EVA resin on one side of the basal film and obtaining the solar cell backboard packaging material. Advantages of the prepared solar cell backboard packaging material are simple preparing technique and excellent capability. Solar panel packaged by the solar cell backboard packaging material is high and low temperature resistant, acid and base resistant, wind drift sand resistant, not delaminated, not chapped, and not aging for 25 years.
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Description

(1) Technical field

[0001] The invention relates to a solar cell back panel packaging material and a preparation method thereof. (2) Background technology

[0002] Solar cells are directly exposed to the atmosphere and must withstand high and low temperature and water vapor erosion. If it cannot resist erosion, its photoelectric conversion performance will be easily attenuated and lose its practical value. Therefore, the research on solar cell packaging materials is very important and has attracted people's attention. In order to achieve the purpose of high and low temperature resistance and water vapor resistance, two pieces of EVA film are generally used to encapsulate the solar cell, and thermally bonded with the upper glass and the bottom TPT to form a solar panel. The backplane of the solar cell adopts TPT encapsulation material, and its preparation process is complicated and the cost is high. (3) Contents of the invention

[0003] The technical problem to be solved...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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