When plastics are exposed to sunlight for a long time, the strong UV rays of various bands will produce different degrees of damage to the bonds of polymer materials.

Under outdoor conditions, some coatings undergo light aging after long-term sunlight exposure in a few months or years, showing problems such as loss of gloss, color fading, chalking, cracking, and even peeling off the whole layer.

Polyurethane foam contains two kinds of materials, Soft foam and Rigid foam. Soft foam is open-cell structure, which mainly plays the role of cushioning. Hard foam is closed-cell structure, which has the function of heat preservation and waterproof.

Moderate amounts of UV light can promote mineral metabolism and vitamin D formation in human’s body, which is beneficial to our health. But long-term exposure to UV light will cause damage to the skin.

Global energy is accelerating the transition to efficient, clean and sustainable direction, and the development of clean energy is also an important factor affecting the global economy and environment. Photovoltaic solar energy has the advantages of low-carbon, environmental protection and high efficiency.

Silicone adhesive can be obtained at room temperature by using different silicone polymers, additives and fillers, after heating or radiation curing. Silicone adhesives have excellent adhesion properties and high temperature resistance, which are widely used in electronics, construction, automotive, aerospace and other fields.

Coating is a kind of liquid or solid material which could be cured on the object surface under certain conditions to act protection, decoration or other special functions (such as insulation, rust, mildew, heat resistance, etc.).

Infrared ray is a kind of electromagnetic wave, with the wavelength between visible light and microwave, ranging from 760nm to 1000 μm.

Polycarbonate (PC) is a kind of thermoplastic engineering plastics with excellent comprehensive properties. It has excellent electrical properties and good light transmittance, it is the only one with good transparency among the five general engineering plastics, its transmittance of visible light can reach more than 90%!