(1) The mechanical properties of FRP products with excellent mechanical properties and designability are very good, and the reinforcing fibers can be reasonably arranged according to the different requirements and stress conditions of the components, and the composition of the reinforcing materials can be changed to meet different positions and directions. The stress changes make the material meet the design requirements.
(2) Good light transmission and decorative properties The ordinary glass lighting materials have high density, heavy and brittle, and inconvenient to install. However, although the glass fiber reinforced plastic as a lighting material has no light transmittance, the light is soft and evenly distributed, and the quality is light ( The thickness is only about 1.2mm, the weight is 2-2.5kg/m2), the strength is large, it is not easy to be broken, which is unmatched by other materials. It is an excellent choice for greenhouses, greenhouses and lighting roofing materials. In addition, due to its good colorability, it can be made into various light-transmitting or opaque color products, and is also an ideal decorative material.
(3) Good thermal insulation performance The thermal resistivity of FRP sheet is generally 0.34W/(m·K) (the thermal resistivity of concrete, glass and metal is usually less than 0.17W/(m·K)), if foam is used The sandwich is made of sheet metal, and its thermal resistance can be increased to 0.69W/(m·K), which is an ideal thermal insulation material.
(4) Excellent insulating FRP is not affected by electromagnetic waves, has good insulation, does not reflect radio waves, has good microwave permeability, and has a special function in buildings for electronic communication systems.
(5) Corrosion resistance, water and moisture resistance FRP has excellent corrosion resistance, and generally has low water absorption and moisture permeability, and is widely used in water supply and drainage projects and the like.
(6) Molding process Flexible FRP has a flexible molding process and various molding methods. Taking unsaturated polyester resin as an example, common molding methods include: hand-paste method, spray method, cold pressing method, bag molding method, pressing method, and winding method.
However, the use of FRP products in construction is not perfect, but also has its shortcomings, such as small rigidity, large creep, low modulus of elasticity, anisotropy, flammability, aging, and high price. However, most of these aspects can be improved through reasonable design and cannot be an obstacle to their application in construction.
FRP is widely used in construction. Corrugated plates have been widely used as roofing materials, especially for lighting roof panels, due to their good impact resistance and light weight.
The shape and size of the FRP corrugated board are basically the same as those of the hard pvc corrugated board, and can also be used together with asbestos cement board. Most of the FRP corrugated sheets are circular wave plates.
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