1. Chemical corrosion resistance: fiber reinforced polyester materials have good corrosion resistance characteristics, such as acid, dilute alkali, salt, organic solvent and seawater, while metal materials are not resistant to acid and seawater.
2. lightweight and high strength: specific strength and specific modulus are one of the indicators to weigh the bearing capacity of data. The specific modulus of fiber reinforced polyester is equivalent to that of steel, but its specific strength can reach 4 times that of steel.
3. good electrical performance: the data not only has excellent electrical insulation, but also adheres to good dielectric performance at high frequency, is not affected by electromagnetism, and does not reflect electromagnetic waves. These properties are far beyond the comparison of metal materials.
4. notch sensitivity: when the component is overloaded and a small amount of fiber is broken, the load will spread quickly on the undamaged fiber, so as to reach mechanical balance again. This is not comparable to metal parts.
5. good fatigue resistance: the tensile strength of fiber reinforced polyester is slightly better than that of steel. The fatigue resistance limit of steel and most metal materials is 40%-50% of their tensile strength, while the tensile strength of fiber reinforced composite materials is generally higher than this value, up to 70%-80%.
6. low thermal conductivity and small shrinkage coefficient: when there is temperature difference, the thermal stress is much smaller than that of metal.
7. flame retardant, smokeless and non-toxic: this material is a kind of flame retardant material, with the flame retardant grade of fv0, the smoke intensity of 15 under high temperature extinction, non-toxic smoke, and the toxicity of za1.
8. long service life: it has been proved that its service life is at least 20 years; The simulated aging test shows that its service life is more than 20 years, far beyond traditional materials such as metals.
