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FRP excellent physical properties
FRP excellent physical properties
(1) lightweight, high strength, FRP relative density of between 1.5 and 2.0, only steel 1/4 to 1/5, but the tensile strength was close to or even more than carbon steel, rather than the intensity with high alloy steel compared to. Thus, in aviation, rockets, spacecraft, high pressure vessels as well as in other products need to reduce the weight of applications, have excellent results. Some epoxy FRP tensile, flexural and compressive strength can reach 400Mpa above.
(2) good corrosion resistance, FRP is a good corrosion-resistant materials, air, water and general concentration of acid, alkali, salt, and a variety of oils and solvents have a better ability to resist. It has been applied to all aspects of chemical preservative, being replaced by carbon steel, stainless steel, wood, non-ferrous metals.
(3) good electrical properties, FRP is an excellent insulating material for manufacturing the insulator. High frequency can still protect the good dielectric properties. Microwave good permeability, has been widely used in radar radome.
Good (4) thermal properties, FRP low thermal conductivity at room temperature of 1.25 ~ 1.67kJ / (m • h • K), only the metal 1/100 ~ 1/1000, is an excellent insulation material. In the instantaneous ultra high temperature, thermal protection and is ideal ablative material on the spacecraft will have to use all kinds of glass fiber reinforced composites.
(5) can design good, FRP as needed, the flexibility to design a variety of structured products to meet the requirements, you can make products have a good integrity. select materials sufficiently to meet the product"s performance, such as: can be devised anticorrosive, resistance to instantaneous high temperature, there is a particularly high strength of the product in certain directions, good dielectric properties, and so on.
(6) the process is excellent, FRP can be flexibly selected according to the shape of the molding process, technical requirements, purpose and quantity of products. process is simple, can a shape, prominent economic effects, especially for complex shapes, easy molding a small number of products, but also to highlight its technology superiority.
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