Profile

The pultruded profile is a composite material formed by glass fiber as the reinforcing skeleton material and thermosetting resin as the matrix bonding material. The continuous roving of glass fiber makes the product have extremely high longitudinal strength. Etc.) The product has good lateral strength; the thermosetting resin matrix is ​​usually unsaturated polyester resin, vinyl resin, epoxy resin and phenolic resin can also be used, the resin matrix makes the product have good corrosion resistance, different resins make The product can be applied to various harsh corrosive environments. Adding anti-ultraviolet absorber and flame retardant can make the product have excellent anti-aging properties and different levels of flame retardant properties. Adding polyester fiber surface felt on the surface of the product can obtain corrosion resistance and aging resistance. Generally, the glass fiber content of the pultruded profile is 45% -75% (weight ratio), and the rest are resin and additives. Unsaturated polyester resin and vinyl resin are the most commonly used resin matrix.

1. Corrosion-resistant pultruded profiles have excellent corrosion resistance, can withstand various degrees of acid, alkali, organic solvents, salts and other gas and liquid media corrosion, never rust, according to the actual use of the medium type and temperature Requirements, there are o-benzene type, m-benzene type, vinyl type, etc. for choice, please refer to the corrosion resistance performance table of pultruded profiles.

2. The glass fiber content of the lightweight high-strength pultruded profile is higher than that of other composite materials, so the longitudinal strength is quite high, which is equivalent to that of steel. The density of the pultruded profile is only about a quarter of the steel, so the specific strength is much higher than that of steel The modulus of pultruded profiles is lower than steel, usually only 1 / 7-1 / 10 of steel.

3. Anti-aging Pultrusion profile is made of high-quality thermosetting resin and glass fiber system, which is different from general thermoplastics. The normal service life of the product can reach 20 years. Adding anti-UV agent and using polyester fiber felt can get the best anti-aging effect.

4. Easy maintenance The pultrusion profile is made by blending pigment into resin. The color of the product can be arbitrarily adjusted according to customer requirements. It is not easy to fade, does not require paint maintenance and has a self-cleaning effect.

5. Excellent electromagnetic properties The pultruded profiles have excellent electrical insulation, no electromagnetic properties and electric sparks, and can be used in equipment areas that are conductive, sensitive to magnetism, and inflammable and explosive places.

6. Thermal properties Pultrusion profile is a kind of thermal insulation material, the coefficient of thermal expansion is much lower than ordinary plastics, pultrusion has excellent mechanical properties at low temperatures, will not melt at high temperatures, but strength and modulus will To a certain extent, the applicable temperature range of pultruded profiles is -50 ℃ -100 ℃.

A, cooling tower

B. infrastructure

C. Power insulation

D. Chemical antiseptic

E. Industrial and consumer products