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Modified polypropylene composition for solar cell back panel and preparation method thereof

A technology of polypropylene composition and solar cell, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., and can solve problems such as difficulty in meeting the performance requirements of solar backsheets, poor electrical insulation, poor adhesion, and poor moisture and heat aging resistance , to achieve excellent interlayer peeling force, excellent low temperature impact resistance and low cost

Inactive Publication Date: 2017-09-12
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the solar backsheet materials mainly include: TPT solar backsheet, BBF solar backsheet, TPE solar backsheet, APE solar backsheet, EVA solar backsheet; TPT solar backsheet and BBF solar backsheet are mainly fluorine-containing materials through Three-layer co-extrusion preparation, TPE solar backsheet, APE solar backsheet and EVA solar backsheet are mainly high-performance materials prepared by modifying thermoplastic polymers. Their structures are basically multi-layer composite structures, and their production processes are complex. , poor electrical insulation and adhesion, easy to embrittle
[0004] CN 102365172A discloses a new type of laminated polyester film added with rutile titanium dioxide particles, but its adhesion with the adjacent EVA film cannot be guaranteed, and due to the structural characteristics of the material, it is difficult for the polyester resin to overcome the water absorption rate High, poor moisture and heat aging resistance (brittleness) defects, it is difficult to meet the performance requirements of solar backplanes

Method used

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  • Modified polypropylene composition for solar cell back panel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053]This example illustrates the preparation method of the modified polypropylene composition of the present invention, and the weight of all substances is 100 parts by weight.

[0054] First, 50 parts of polypropylene (PPH, L5E89, MI=3.0g / 10min, 2.16kg, 230℃), 20 parts of polyamide (PA6, 1013B, MI=15g / 10min, 2.16kg, 230℃), 5 parts Polyolefin elastomer (POE, 8150, MI=0.5g / 10min, 2.16kg, 190°C), 0.5 parts of initiator (double 2,5: TAIC=3:1), 3.5 parts of grafted monomer (maleic anhydride , MAH) and 1 part of additive (0.25 part of antioxidant 1010, 0.25 part of antioxidant 168, 0.25 part of UV-327, 0.25 part and light stabilizer 622) were added to the high-speed mixer and mixed for 3 to 5 minutes;

[0055] Next, add the above mixture into the lower hopper of the extruder, and at the same time, 20 parts of reinforcing filler talc (808A, 2500 mesh) are added to the screw extruder through the screw side feed port and jointly melted and extruded. It is set to increase from 170°C...

Embodiment 2

[0058] First, 50 parts of polypropylene (PPH, L5E89, MI=3.0g / 10min, 2.16kg, 230℃), 15 parts of polyamide (PA6, 1013B, MI=15g / 10min, 2.16kg, 230℃), 5 parts Polyolefin elastomer (POE, 8150, MI=0.5g / 10min, 2.16kg, 190°C), 0.5 parts of initiator (double 2,5: TAIC=3:1), 3.5 parts of grafted monomer (maleic anhydride , MAH) and 1 part of additive (0.25 part of antioxidant 1010, 0.25 part of antioxidant 168, 0.25 part of UV-327, 0.25 part and light stabilizer 622) were added to the high-speed mixer and mixed for 3 to 5 minutes;

[0059] Next, the above mixture was added to the lower hopper of the extruder, and 25 parts of reinforcing filler talc (808A, 2500 mesh) were added to the screw extruder through the screw side feeding port at the same time and melted and extruded together. It is set to increase from 170°C to 260°C;

[0060] Finally, through water cooling, air drying, granulator granulation and other processes, a modified polypropylene composition for solar battery back sheet...

Embodiment 3

[0062] First, 70 parts of polypropylene (PPH, L5E89, MI=3.0g / 10min, 2.16kg, 230℃), 10 parts of polyamide (PA6, 1013B, MI=15g / 10min, 2.16kg, 230℃), 5 parts Polyolefin elastomer (POE, 8150, MI=0.5g / 10min, 2.16kg, 190°C), 0.5 parts of initiator (double 2,5: TAIC=3:1), 3.5 parts of grafted monomer (maleic anhydride , MAH) and 1 part of additive (0.25 part of antioxidant 1010, 0.25 part of antioxidant 168, 0.25 part of UV-327, 0.25 part and light stabilizer 622) were added to the high-speed mixer and mixed for 3 to 5 minutes;

[0063] Next, add the above mixture into the lower hopper of the extruder, and at the same time, add 10 parts of reinforced filler glass fiber (Jianshi, 508A, 3.0mm) into the screw extruder through the screw side feeding port and jointly melt and extrude, twin-screw The temperature of each zone is set to increase from 170°C to 260°C;

[0064] Finally, through water cooling, air drying, granulator granulation and other processes, a modified polypropylene comp...

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Abstract

The invention discloses a modified polypropylene composition for a solar cell back panel. The modified polypropylene composition comprises the following components in percentage by weight: 40 to 80 percent of polypropylene, 5 to 30 percent of polyamide, 2 to 15 percent of polyolefin elastomer, 0.1 to 1.0 percent of an initiator, 0.5 to 5.0 percent of a grafting monomer, 0 to 30 percent of reinforcing filler, and 0 to 5 percent of an additive. The composition provided by the invention has excellent low-temperature impact resistance and aging resistance, has low saturated water absorptivity, low water vapor permeability and excellent electrical insulating property, and can be used for manufacturing a solar back panel.

Description

technical field [0001] The invention relates to a solar battery component, in particular to a modified polypropylene composition used for a solar battery back plate and a preparation method thereof. Background technique [0002] As we all know, solar energy is the most abundant renewable energy, and using solar energy to generate electricity is one of the important ways for human beings to develop and utilize solar energy. At present, a solar power generation system is usually composed of a solar cell group, a solar controller, a storage battery, and an inverter. The solar backsheet is located on the back of the solar panel, which protects and supports the battery sheet. It generally has reliable insulation, water resistance, mechanical properties, and aging resistance (ultraviolet aging resistance, humidity and heat aging resistance), and is a solar cell component. Indispensable component. [0003] At present, the solar backsheet materials mainly include: TPT solar backsh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L77/02C08L23/08C08L51/06C08K13/02C08K3/34C08K13/04C08K7/14H01L31/048H01L31/049
CPCY02E10/50C08L23/12B29C48/92B29C2948/92704C08L2201/08C08L2203/204C08L2205/035H01L31/0481H01L31/049C08L77/02C08L23/0815C08L51/06C08K13/02C08K3/34C08K13/04C08K7/14
Inventor 丁聪曹菲菲张耕顾江江郑新生
Owner HUAZHONG AGRI UNIV
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