Analysis of the application of organic silicone adhesive in photovoltaic modules

Solar photovoltaic power generation is currently the most economical, cleanest, and most environmentally-friendly sustainable energy source available. The photovoltaic industry has become the fastest growing industry in our renewable energy industry after relaying wind power. Because solar cells have thin, brittle, and easy to oxidize physical and chemical defects. Long-term exposure to high temperature, high temperature, low temperature, strong ultraviolet rays, wind and rain and other natural conditions can easily cause permanent damage. Organic silicone adhesives are widely used in the production of battery module packaging due to their good weather resistance, sealability, and electrical insulation.

 Organic silicone adhesive application performance on solar photovoltaic modules

1, craftsmanship:
Uniform viscosity, good extrusion rate, smooth thixotropy, no bubbles and crusts;

2, mechanical properties: medium hardness, small change in elongation and tensile strength;

3. Adhesion: Adhesion strength to the backplane, aluminum alloy, junction box, bus bar should be high enough;

4. Resistance to yellowing: The surface color of silica gel after aging at high temperature and humidity is small;

5. Moisture and heat resistance: The strength, hardness, and electrical properties of the silica gel are small after moist heat aging;

6. UV resistance: The performance of the UV aging box after a long time aging does not change much.

The application of organic silicone adhesives in photovoltaic modules can be roughly divided into three categories: bonding, sealing, and potting. Adhesion and sealing of laminated solar cell sheet and aluminum alloy frame, bonding of wiring and backing material, potting of junction box and structural bonding of thin film battery to metal front rail, organic silicone adhesive in solar cell 4 important places to use