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A kind of resin composition and solar backboard prepared therefrom

A technology of a solar back sheet and a resin composition, which is applied in the field of solar back sheets, can solve the problems of difficulty in meeting the requirements of the solar back sheet against moisture and heat aging, the solar back sheet is not resistant to moisture and heat, and the fluorine-containing film is expensive. Excellent water vapor transmission rate, low water vapor transmission rate, and the effect of simplifying manufacturing costs

Active Publication Date: 2017-03-15
SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since polyester is a polymer that is not resistant to hydrolysis, even with these improved technologies, it is still difficult to meet the moisture and heat aging resistance performance requirements of solar backsheets.
In the Chinese invention patent application CN102365172A, a new type of laminated polyester film added with rutile titanium oxide particles is proposed, but its adhesion with the adjacent EVA film cannot be guaranteed, and the following problems still exist: On the one hand, the fluorine-containing film layer is expensive, on the other hand, there is still a polyester film in the structure, which cannot change the problem that the solar backsheet is not resistant to heat and humidity, has high water absorption, poor electrical insulation, and is easy to embrittle.
To sum up, the polyester film (PET) or polyamide film (PA) used as the substrate material of the photovoltaic backplane so far is difficult to overcome the defects of high water absorption rate and poor moisture and heat aging resistance (brittleness) due to the structural characteristics of the material.

Method used

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  • A kind of resin composition and solar backboard prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for preparing a solar backboard, comprising the steps of:

[0055] (1) Add 20 parts of titanium dioxide R960 and 0.6 parts of silane coupling agent KH560 into a high mixer, stir for 30 minutes at a speed of 600 rpm;

[0056] Then add 100 parts of metallocene polyethylene 1327ED, 0.2 parts of antioxidant tetrakis[ß-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester (Beijing Additive Research Institute, KY1010), 0.2 parts of UV absorber 2-hydroxy-4-n-octyloxybenzophenone (Beijing Institute of Addition Auxiliaries, GW531), 0.1 parts of light stabilizer bis(2,2,6, 6-Tetramethyl-4-piperidinyl) sebacate (Beijing Institute of Addition Auxiliaries, GW480), stirred for 30 minutes at a speed of 600 rpm, and mixed the materials evenly; put the above materials into three layers The A screw of the extrusion sheet unit has a screw diameter of 60 mm and a length-to-diameter ratio of 33;

[0057] (2) 100 parts (parts by weight) of metallocene polyethyle...

Embodiment 2

[0067] A method for preparing a solar backboard, comprising the steps of:

[0068] (1) Add 20 parts of titanium dioxide R960 and 0.6 parts of silane coupling agent KH560 into a high mixer, stir for 30 minutes at a speed of 600 rpm; then add 100 parts of metallocene polyethylene 1327ED, 0.2 parts of antioxidant tetra[ ß-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester, 0.2 parts of UV absorber 2-hydroxy-4-n-octyloxybenzophenone, 0.1 parts Light stabilizer bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, stir for 30 minutes, rotate at 600 rpm, mix the materials evenly; put the above materials into three layers The A screw of the extrusion sheet unit has a screw diameter of 60 mm and a length-to-diameter ratio of 33;

[0069] (2) Add 20 parts of titanium dioxide R960 and 0.6 parts of silane coupling agent KH560 into a high stirrer, stir for 30 minutes at a speed of 600 rpm; then add 100 parts of silane-grafted polyethylene resin XPE, 0.2 Part of antioxid...

Embodiment 3

[0074] A method for preparing a solar backboard, comprising the steps of:

[0075] (1) Add 20 parts of titanium dioxide R960 and 0.6 parts of silane coupling agent KH560 into a high mixer, stir for 30 minutes at a speed of 600 rpm; then add 100 parts of EVA resin 14-2 (Beijing Organic Chemical Factory, its VA Content 14%, 190℃ / 2.16kg melt flow rate is 2.0g / 10min), 0.2 parts of antioxidant tetrakis[ß-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propane Acid] pentaerythritol ester, 0.2 part of UV absorber 2-hydroxy-4-n-octyloxybenzophenone, 0.1 part of light stabilizer bis(2,2,6,6-tetramethyl-4-piperidinyl ) sebacate, stirred for 30 minutes, and the speed was 600 rpm, and the materials were mixed evenly; the above materials were put into the A screw of the three-layer co-extrusion sheet unit, the diameter of the screw was 60 mm, and the aspect ratio was 33;

[0076] (2) Add 20 parts of titanium dioxide R960 and 0.6 parts of silane coupling agent KH560 into a high stirrer, stir for 30 mi...

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Abstract

The invention discloses a resin composition, which comprises the following components in terms of mass: 100 parts of silane-grafted polyethylene resin, 10-100 parts of pretreated filler, 0-1.5 parts of additive, and 0.05-0.5 part of catalyst; The silane-grafted polyethylene resin is prepared by grafting and cross-linking the following components: 100 parts of component A, 0.2-5 parts of silane, and 0.05-0.5 parts of initiator; wherein, the component A is selected from homopolymerization One or more of ethylene, copolymerized polyethylene and metallocene polyethylene. And a backboard prepared from the resin composition. The back sheet of the present invention not only has excellent adhesion and interlayer peeling force, but also has aging resistance, especially high temperature and heat aging resistance, and has low saturated water absorption, low temperature impact resistance, and low water vapor permeability. High efficiency and excellent electrical insulation, fully meet the requirements of the back sheet of solar cell modules.

Description

technical field [0001] The invention relates to a resin composition and a solar backboard prepared therefrom. Background technique [0002] Solar energy is the most abundant renewable energy resource, with unique advantages and huge potential for development and utilization. Solar power generation is a new technology in the way of solar energy utilization. Its power generation principle is to use the quantum effect of semiconductors such as silicon to directly convert the light energy of sunlight into electrical energy. However, if the silicon wafer is directly exposed to the atmosphere, its photoelectric conversion function will be attenuated. Therefore, in the prior art, EVA (ethylene-vinyl acetate copolymer) film is generally used as the packaging material to encapsulate the silicon wafer, and it is bonded with the upper protective material (such as low-iron tempered glass) and the lower protective material backplane. Integral to form a solar cell. Among them, the sola...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08L23/06C08L23/08C08L23/12C08K9/06B32B27/06B32B27/18B29C47/92H01L31/049H01L31/18B29C48/92
CPCB29C48/21B29C48/08B29C48/92B29C2948/92209B29C2948/92485B29C2948/926B29C2948/92685B29C2948/92704
Inventor 罗吉江符书臻
Owner SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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