What are the excellent properties of fiberglass reinforced polyurethane composite frames?
Mr. Feng Yi, Chairman of Zhejiang Deyilong Technology Co., Ltd. and Adjunct Professor of Wuhan University of Technology, reported in the symposium on application research, development and marketing of fiberglass products for the photovoltaic industry that fiberglass reinforced polyurethane is the mainstream type of composite frame material. It has many advantages such as excellent weather resistance, insulation performance and carbon emissions.
Resistant to corrosion and salt spray
Fiberglass reinforced polyurethane composite frame has the superior properties of high corrosion resistance and high salt spray resistance. It is the best choice for photovoltaic module frame in corrosion-resistant application scenarios such as oceans and sewage treatment plants.
Carrying higher back pressure
Coastal module designs need to carry higher back pressure (approximately 4000Pa). Traditional frames require increased thickness and cost. The fiberglass reinforced polyurethane composite frame can give full play to its mechanical properties and can easily meet the back pressure requirement of 4000Pa. The yield strength of the high-yield-strength glass fiber-reinforced polyurethane composite frame is 990MPa, which is 5 times that of aluminum alloy. It ensures that the component will rebound 100% after the stress is released without residual deformation. It can significantly reduce the stress of the silicon wafer during the 25-year life cycle. Hidden crack.
Prevent back glass from bursting
The elastic modulus of fiberglass reinforced polyurethane material is slightly lower than that of glass, and the frame has a dynamic load damping effect under wind load dynamics, which can effectively alleviate the problem of glass bursting on the back.
Excellent insulation properties
Traditional frame materials are conductors, and each component needs to be grounded, which increases the difficulty and cost of BIPV construction. The fiberglass reinforced polyurethane composite frame has excellent insulation properties and does not require grounding.
Multiple color options
Traditional borders have a single color, and additional costs are required to make other colors. Glass fiber reinforced polyurethane composite frames are available in a variety of colors for users to choose from at no additional cost.
Prevent component bending and deformation
The expansion coefficient of the fiberglass reinforced polyurethane material frame is almost the same as that of glass, which effectively ensures that the components will not bend and deform when they are transported from the factory to cold areas.
Low carbon emissions
Components exported to Europe after 2025 will have carbon emission index requirements. GRPU frame is a low energy consumption product. According to preliminary calculations, as a life cycle from the most primary raw materials (petroleum and ore) to the component frame and then to the first recycling, the carbon emission index of GRPU frame is only 12% of that of traditional frame materials. , reduce carbon emissions from component exports.
