The relative density is between 1.5 ~ 2.0, only 1/4 ~ 1/5 of carbon steel, but the tensile strength is close, even more than carbon steel, and the specific strength can be compared with advanced alloy steel. Therefore, it has excellent results in aviation, rockets, space vehicles, high-pressure containers, and other products that need to reduce their weight. The tensile, bending and compressive strength of some epoxy FRP can reach more than 400Mpa.
Good corrosion resistance
FRP is a good anti-corrosive material, and has good resistance to the atmosphere, water and general concentrations of acids, alkalis, salts, and a variety of oils and solvents. It has been applied to all aspects of chemical corrosion protection and is replacing carbon steel, stainless steel, wood, non-ferrous metals, etc.
Good electrical performance
Is an excellent insulating material used to make insulators. Good dielectric properties can still be protected at high frequencies. Microwave penetration is good, and it has been widely used in radomes.
Good thermal performance
FRP thermal conductivity is low, at room temperature is 1.25 ~ 1.67kJ / (m · h · K), only 1/100 ~ 1/1000 of metal, is an excellent thermal insulation material. It is an ideal thermal protection and ablation-resistant material under the condition of instantaneous ultra-high temperature, which can protect the spacecraft from high-speed air flow above 2000 ℃.
Good designability
①A variety of structural products can be flexibly designed according to needs to meet the requirements of use, and the product can have a good integrity.
②The materials can be fully selected to meet the performance of the product. For example, it can be designed to be corrosion resistant, transient high temperature resistant, particularly high strength in a certain direction of the product, good dielectric, etc.
Excellent manufacturability
①The molding process can be flexibly selected according to the shape, technical requirements, uses and quantity of the product.
②The process is simple, it can be formed at one time, and the economic effect is outstanding. Especially for the products with complex shapes and small quantities that are not easy to form, the process superiority is more prominent.