FRP flange inventory

  FRP products have become the transmission medium of many industries because of its super corrosion resistance, but what does it rely on to realize its unique characteristics
The structure of filament wound FRP products is divided into three parts: inner lining layer, structural layer and outer protective layer
Among them, the resin content of the lining layer is high, generally more than 70%, and the resin content of the resin rich layer on the inner surface is as high as about 95%
By selecting the resin used in the lining, FRP products can have different corrosion resistance when transporting liquid, so as to meet different work needs; For the occasion requiring external corrosion protection, the purpose of different external corrosion protection can also be achieved by carefully selecting the resin of the external protective layer
FRP products can choose different anti-corrosion resins according to different corrosive environments, mainly including m-benzene unsaturated polyester resin, vinyl resin, bisphenol a resin, epoxy resin and furan resin
They can be selected according to specific conditions: bisphenol a resin and furan resin are selected for acidic environment; For alkaline environment, vinyl resin, epoxy resin or furan resin shall be selected; For solvent environment, furan and other resins are selected; When the corrosion of acid, salt and solvent is not very serious, m-benzene resin with relatively low price can be selected
By selecting different resins for the inner lining, FRP products can be widely used in acid, alkali, salt, solvent and other working environments, showing good corrosion resistance