Gasket
Among the many key components of alkaline electrolyzers, sealing gaskets play a pivotal role. They must meet a series of stringent performance requirements, including excellent alkali corrosion resistance, long-term resistance to 27% - 32% potassium hydroxide solution, good creep resistance, and stable shape under complex working conditions; at the same time, they must have satisfactory compression resilience to compensate for the minor defects and pores that may exist on the surface of the plate and achieve excellent sealing effect.
Performance Requirements
Material Type
1. Molded silicone rubber and polymer materials with asbestos fiber, glass fiber, mineral fiber, etc., long-term high temperature hardening catalysis and other failure modes will affect the sealing effect.
2. Cloth-pad gasket.
It is to combine the traditional asbestos diaphragm cloth and gasket into one. With the ban on asbestos, this type of sealing method has also withdrawn from the market.
3. Polytetrafluoroethylene.
Polytetrafluoroethylene (PTFE) filled asbestos gasket, with asbestos fiber as reinforcing fiber, adding inorganic fillers such as graphite and alumina, and the finished product is made through mixing, molding, sintering, cooling and other processes.