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Novel solar cell back panel and preparation method thereof

A technology for solar cells and back sheets, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of loss of protection of solar cell components, environmental pollution of operators, separation between layers, etc., and achieve poor mechanical properties. Guarantee the effect of long-term work and short production cycle

Inactive Publication Date: 2013-09-18
CHANGZHOU HUITIAN NEW MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Each layer is bonded by a solvent-based two-component polyurethane adhesive. The biggest disadvantage of this dry composite structure is that a large amount of organic solvents are used in the production process, and these organic solvents are more or less harmful to the operation. Workers and the environment cause certain pollution. In addition, the polyurethane adhesive layer of this composite structure will degrade during long-term use, resulting in separation and detachment between the layers, and then the solar cell modules lose their protection and are gradually scrapped.

Method used

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  • Novel solar cell back panel and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] Polymethyl methacrylate (PMMA) resin and titanium dioxide (TiO 2 ) placed in an oven at 100°C for 12 hours to remove moisture, and then PMMA resin and polyvinylidene fluoride (PVDF) resin were added with 5% mass of TiO on the basis of PVDF / PMMA mass ratio of 70 / 30 2 , mixed with a high mixer and then added to the twin-screw extruder for granulation. The processing temperature is: 160°C, 180°C, 200°C, 220°C, 230°C, 225°C, 220°C, and the head temperature is 200°C. Water-cooled pelletizing to obtain PVDF, PMMA and TiO 2 mixed pellets.

[0028] Polymethyl methacrylate (PMMA) resin and titanium dioxide (TiO 2 ) placed in an oven at 100°C for 12 hours to remove moisture, then PMMA resin and poly-n-butyl methacrylate (PBMA) resin were added with 5% mass of TiO on the basis of PMMA / PBMA mass ratio of 60 / 40 2 , mixed with a high mixer and then added to the twin-screw extruder for granulation. The processing temperature is: 160°C, 180°C, 200°C, 220°C, 230°C, 225°C, 220°C, and ...

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Abstract

The invention relates to the technical field of solar cell back panels, in particular to a novel solar cell back panel and a preparation method thereof. The solar cell back panel is prepared by a fluorine-containing polymer, a polyacrylate polymer layer and a two-way stretch polyester film through multilayer co-extrusion coating technology. According to the novel solar cell back panel and the preparation method thereof, the technique is simple, the production cycle is short, the continuous industrial production is facilitated, the harm to the health of operating staff and the pollution to environment, caused by organic solvent type adhesive, is effectively avoided, the defect of poorer mechanical property of the solar cell back panel prepared by the multilayer co-extrusion technology is improved, and the polyacrylate polymer layer with hydrolysis resistance and ageing-resistant property is adopted, has good weather resistance ability, moisture barrier property, mechanical property and interlaminar peel strength, and can effectively guarantee the long-term operation of a solar component.

Description

technical field [0001] The invention relates to the technical field of solar battery backplanes, in particular to a novel structure solar battery backplane and a preparation method thereof. Background technique [0002] At present, with the rapid development of the global economy and the background of climate warming, the requirements for energy conservation and emission reduction and the development of new energy to replace fossil fuels are becoming more and more urgent. [0003] Solar energy is a new type of green and pollution-free energy, and it is inexhaustible. At present, the application of solar energy is mainly to use solar power generation components to convert solar energy into electrical energy for utilization. Solar power generation components are mainly composed of front plates, packaging materials, crystalline silicon cells, and back plates. The solar backsheet is located on the back of the solar panel and protects and supports the solar cells. Therefore, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048B32B27/08
CPCY02E10/50
Inventor 杜震宇石娜
Owner CHANGZHOU HUITIAN NEW MATERIALS
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