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ESD antistatic resin
Technology gives traditional FRP electrical conductivity
Composite material (FRP or commonly known as FRP) has good specific strength and designable characteristics. It is a new high-quality lightweight material, but under normal circumstances, the composite material (FRP) is insulated after the completion of production, and in the application process, some field bonding also requires FRP to have anti-static or conductive requirements.
In order to solve this technical problem, we can start from the related materials or properties of composite materials, one is the material itself, the other is to add conductive materials to increase the conductivity of FRP.
From the material itself, the main material of FRP is that the base resin and fiber reinforced material can improve or meet this requirement, or conductive resin can be used, or conductive fiber material can be used. At present, due to the comprehensive requirements of industrial application performance and economy, it is difficult to make a perfect combination of conductivity and industrialization on the resin, especially as the most widely used FRP parts in industrial corrosion prevention, the cost is an insurmountable barrier; in addition, the conductive fiber, such as carbon fiber, is used as the reinforcement material as the anti-static solution, However, due to the high cost of carbon fiber, the cost is relatively high.
Another way of thinking is to add a certain amount of conductive additives, such as graphite powder or carbon powder, into the molding process, but a certain amount of additives must be added to have an effect, and the processability and mechanical properties of the material, anti-corrosion performance have a great impact, especially in the long-term contact with liquid media, the anti-static performance will decline, and will gradually precipitate, thus Influence on corrosion resistance or chemical medium.
In recent years, the important component of the honeycomb conductive wet electrostatic precipitator (WESP), which is widely used in environmental protection, is the conductive glass fiber reinforced plastic anode tube. Technically, the overall component is required to have good mechanical properties, as well as excellent corrosion resistance, flame retardancy and even conductivity. In general, it is realized by adding conductive agent (graphite powder or carbon black, etc.) to the chemical flame-retardant vinyl ester resin and compounding carbon fiber felt on the surface. At present, Shanghai Fuchen Chemical Co., Ltd. provides the overall production solution of WESP. In addition, the bolt used in coal mine is also similar to the requirements of manufacturing technology.
But based on the above analysis, is there a better solution? Is it possible to improve the overall conductivity of FRP economically by modifying and improving the base resin instead of adding conductive starch, and also unnecessary to compound high-cost carbon fiber? At present, Shanghai Fuchen Chemical Co., Ltd. has developed a series of ESD antistatic resins, which perfectly solves this problem.
As a professional resin R & D and manufacturer, Shanghai Fuchen's development team is always a bridge between specific market and customer demand. Shanghai Fuchen has developed a series of ESD resins with anti-static property based on years of technology accumulation and advanced synthetic technology at home and abroad. Through special chemical structure, it has given certain conductivity to the base resin. At present, there are two series products of epoxy and vinyl resin. This kind of resin has good anti-static property after the conventional forming process of composite material (fiberglass), and it is unnecessary to add conductive powder or choose carbon fiber to meet the technological requirements. The surface resistivity can reach 106-9 Ω in the forming process of fiberglass.
As a new type of material, it has been successfully applied to the reconstruction project of double wall lining of oil tanks in service. In the relevant national standards and the recent regulations of Sinopec's relevant documents, it is clear that: in the reconstruction technology of anti leakage lining of gas stations, the anti-static resin is clearly required to be non carbon system, solvent-free or high solid resin, and it is required to be resistant to all kinds of oil The characteristics of products (ethanol, methanol gasoline, etc.) before, some engineering manufacturers used the way of adding carbon powder or graphite powder. As a result, the precipitation of powder causes pollution to the oil products and reduces the corrosion resistance of the lining. The materials provided by Shanghai Fuchen perfectly solved the technical pain point. After using our material, it can be simply formed in one time without special treatment (such as adding copper bar or carbon powder). After curing, its surface resistivity fully meets the requirements of the electrostatic safety code for liquid petroleum products (gb13348-2009), and it has good adhesion with FRP of each layer, long-term corrosion resistance and electrostatic conductivity. We have retested the surface properties of oil tanks in a large number of applications for more than 4 years, and no failure of electrostatic conductivity and corrosion resistance has been detected. At the same time, we believe that this kind of ESD special materials can be used in electronic industry or some special occasions.
Test report attached!