Nowadays, in urban planning and construction, the equipment of FRP pultrusion profiles is becoming more and more popular, such as roadside barriers, power engineering barriers, factory barriers, etc., because the natural environment where such equipment is located is mostly outdoor. Therefore, there will be a lot of debris in the air, and some easily eroded substances will cause damage to it, but the FRP pultruded profile itself has corresponding corrosion resistance, which promotes its long use time. Get acquainted.
The performance of FRP pultruded profiles is also related to glass fiber, fillers, ground curing agents and surface modifiers. In addition to organic chemical or physical effects on glass fibers and resins, organic chemicals also have an effect on the bonding of their user interfaces, resulting in damage to the characteristics of glass fiber reinforced plastics. Therefore, the correct selection of materials and the improvement of resin crosslinking density are the core of making anti-corrosion FRP. The three factors of temperature, content, and resin type have the control effect, which can only be determined according to the details.
For different resins, the corrosion resistance is: phenolic resin has good washing resistance, amine-cured epoxy resin has good alkali resistance, acid anhydride-cured epoxy resin has good acid resistance, and polyester resin as a whole The performance is good. Among them, the bisphenol A type polyester has better corrosion resistance than ordinary resins, and vinyl ester-based resin is a new type of corrosion-resistant resin; epoxy resin glue has better corrosion resistance. The order of washing resistance is: polyester < phenolic < epoxy < furan. However, its corrosion resistance is not permanent. Under appropriate circumstances, it is still necessary to strengthen the anti-corrosion work of this type of equipment when using it, because increasing the service life will also have a very large impact on their application. significance.
At this stage, in all the application scenarios of raw materials, it can be properly activated and anti-corrosion. The more obvious one is the FRP pultruded profile. This type of profile is not like everyone expected. It is also a kind of steel. It belongs to the new type. It is also a kind of composite material. The stronger the corrosion resistance of FRP profiles, the stronger the resistance to temperature, the stronger the adaptability to the natural environment, and the stronger the use time.