High-temperature-resistant corrosion-resistant modified unsaturated polyester resin fiberglass-reinforced plastic grille

Abstract

The invention discloses a high-temperature-resistant corrosion-resistant modified unsaturated polyester resin fiberglass-reinforced plastic grille. The fiberglass-reinforced plastic grille is prepared from the raw materials in parts by weight: 50-150 parts of modified unsaturated polyester resin, 20-60 parts of phenol-formaldehyde resin, 5-15 parts of acrylic acid modified alkyd resin, 2-5 parts of silicon carbide, 1-4 parts of aluminum hydroxide, 3-9 parts of magnesium hydroxide, 2-6 parts of talcum powder, 1-4 parts of paraffin, 2-5 parts of zinc oxide, 3-5 parts of fiberglass, 1-4 parts of hydroxy silicone oil, 1-6 parts of wetting dispersant BYK-W940, 2-8 parts of anti-aging agent D, 1-4 parts of ammonium polyphosphate, 2-5 parts of hydroxyethyl methacrylate, 1-5 parts of tin dibutyl dilaurate, 1-4 parts of dicumyl peroxide, 3-5 parts of propenyl ether glycol peroxide, 1-5 parts of silane coupling agent KH-570, 2-5 parts of methylethyl ketone peroxide and 3-6 parts of cobalt naphthenate. The fiberglass-reinforced plastic grille disclosed by the invention has excellent high-temperature resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the field of FRP grids, in particular to a modified unsaturated polyester resin FRP grid with high temperature resistance and corrosion resistance. Background technique [0002] Molded glass fiber reinforced plastic grating (referred to as FRP grating) is a kind of glass fiber reinforced material, unsaturated polyester resin as matrix, which is made by manual winding and resin casting method with many regular spaces. of sheet material. Because of its excellent corrosion resistance, flame retardant, light weight and high strength, impact resistance, insulation, non-slip, non-magnetic, beautiful, maintenance-free, easy installation, aging resistance, fatigue resistance and other characteristics, it is widely used in petrochemical, metallurgy, electric power , food, transportation, environmental protection and many other industrial fields. [0003] With the widespread use of FRP grating, the quality requirements for its products...

AI Technical Summary

Problems solved by technology

[0003] With the widespread use of FRP grating, the quality requirements for its products are getting higher and higher, but as a polymer material, it is flammable and there are many fire hazards in use.

At present, the main method to improve the flame retardancy of FRP grating products is to add flame retardants, but flame retardants have certain deficiencies, such as halogen-containing flame retardants, which have good flame retardant effects, but are prone to produce a large amount of harmful substances during the flame retardant process. At the same time, when the halogen-containing products are used outdoors under the condition of light, the anti-aging will deteriorate, and they will easily turn yellow, resulting in reduced weather resistance

Generally, as the amount of polymerization inhibitor used increases, the mechanical properties of FRP grating products will become worse and worse, and its mechanical properties are too low, which will seriously affect its normal use.

[0004] To sum up, the flame retardant properties of existing FRP grating components are not high, and FRP gratings using flame retardants tend to emit harmful gases and smoke during combustion, and the greater the amount of flame retardants used, the greater the use of FRP gratings. The worse the mechanical properties of the grid; at the same time, the anti-corrosion performance cannot meet the actual use requirements, and it needs to be improved