What are the characteristics of special positioning tape for solar energy?

Special positioning tape for solar energy has the following characteristics:

High temperature resistance

In solar module, the production process, such as lamination, needs to be carried out at high temperature, and the positioning tape should be able to withstand the corresponding high temperature without losing its viscosity or deformation. For example, some solar high-temperature positioning tapes can withstand 180 degrees and meet the requirements of EVA lamination process.

High viscosity and good adhesion.

It can be firmly attached to solar cells, backboards and other components, ensuring that the positions of solar cells and other components are fixed during production, transportation and use, and preventing displacement and merging. For example, 3M UV-1H photovoltaic cell high-temperature positioning adhesive tape has good adhesiveness, which can ensure accurate positioning of silicon wafer components and no bubbles.

Transparency and invisibility effect

Some positioning tapes are made of transparent base materials and adhesives, which will not leave obvious marks in solar module after lamination, and will not affect the appearance and light transmittance of components, and have good invisibility. Products such as 3UV-1 solar positioning tape, whose transparent backing and adhesive leave no trace after lamination, can meet the application scenarios with high requirements on the appearance of components.

Ultraviolet resistance

Because solar module is usually exposed to the outdoor environment for a long time, the positioning tape needs to have good ultraviolet resistance to prevent the aging, discoloration and viscosity reduction of the tape caused by ultraviolet radiation, prolong its service life, and maintain good sealing and fixing effects. For example, some tapes do not yellow for 25 years outdoors and can maintain stable performance for a long time.

Chemical corrosion resistance

In the process of production and use in solar module, the positioning tape may come into contact with some chemicals, such as EVA film, flux, etc., and it needs to have certain chemical corrosion resistance to ensure its performance is not affected.

Dimensional stability

It has good dimensional stability, and its dimensional change is small under different temperature and humidity conditions, which can always maintain accurate positioning effect, ensure the spacing and position accuracy between solar cells, and is conducive to improving the power generation efficiency and performance consistency of solar module.

maneuverability

The adhesive tape should be easy to be torn or cut by hand, which is convenient for quick and accurate pasting operation in the production process in solar module and improves production efficiency. At the same time, when the adhesive tape needs to be removed, it can be easily torn off, and too much adhesive stains will not remain on the surface of the component, so as to avoid polluting the component or affecting the subsequent process.

Environmental protection

It meets the relevant environmental protection standards and requirements, contains no harmful substances and is harmless to the environment and human health. In the application of solar energy as clean energy, its supporting positioning tape also needs to have corresponding environmental protection characteristics in order to realize the green development of the whole industrial chain.