As the global energy situation tightens, solar photovoltaic power generation, as a sustainable alternative to energy, has developed rapidly in recent years and has been widely promoted and applied in countries with abundant solar energy resources (such as Germany and Japan). After nearly a decade of rapid development, China's photovoltaic industry has also entered the forefront of world development. Driven by the international market and domestic policies, a large number of outstanding photovoltaic enterprises such as Wuxi Suntech, Changzhou Tianhe and Tianwei Yingli have emerged, which has driven the development of upstream and downstream enterprises, and China's photovoltaic power generation industry chain is taking shape.

An important component of solar photovoltaic power generation is a high-conversion single-chip solar cell, ethylene-vinyl acetate copolymer (EVA) film, low-iron tempered glass, fluoroplastic, and polyester composite backing film (TPT). The components are heated and laminated under vacuum to form a whole, and finally the anti-corrosion aluminum alloy frame and junction box are installed to become the finished photovoltaic module. In order to prevent water and oxygen in the air from entering the solar photovoltaic cell module, the silicon cell in the module is oxidized, resulting in a decrease in the conversion rate of the silicon cell, and the frame of the photovoltaic cell module must be disposed (ie, the solar panel of the solar panel, the reverse TPT panel) The gap between the aluminum frame and the aluminum frame is sealed by a sealant with good sealing and weathering resistance; the sealant must be sealed and sealed around the casing of the power conversion box (ie, the junction box) to protect the circuit board. Extended service life.