Conductive polyurethane foam is a material with excellent physical and chemical properties. It shows significant advantages in electrical conductivity, mechanical properties and flame retardancy. This material not only has good electrical conductivity, but also has low density and light weight, so it has broad application prospects in many fields.
It is a material made from polymeric foaming of isocyanate and hydroxyl compounds and has excellent elasticity, softness, elongation and compressive strength. In order to make it conductive, the researchers adopted an innovative method: uniformly disperse carbon nanotubes (CNTs) in polyether polyol, mix them evenly with polyurethane, and finally inject them into a mold to produce conductive polyurethane. (PU) foam.
In the preparation of this material, controlling the water content is key because it can affect the density and conductive properties of the material. As the density of a material decreases, its volume conductivity slowly decreases. However, when the density drops to a certain level, the conductivity will suddenly decrease, and the material will undergo a "conductive-insulating" transition.
This type of material can be divided into many types according to different uses and needs.
Including general conductive foam, nickel-plated copper conductive foam, gold-plated conductive foam, carbon-plated conductive foam, tin-plated conductive foam, conductive aluminum foil foam, conductive copper foil foam, multi-directional conductive foam, SMT conductive foam, and I/O conductive foam Mat etc. These different types of conductive polyurethane foams are widely used in electronics, electrical, aerospace, biomedical and other fields. They are mainly used to manufacture conductive gaskets, shielding materials, etc. to meet specific functional requirements.
In general, conductive polyurethane foam has the advantages of thermal insulation, good sound absorption performance, corrosion resistance, lightweight and toughness, etc., and is widely used in construction, chemical industry, transportation and other fields. With the advancement of science and technology and people's increasing requirements for energy conservation and environmental protection, the application prospects of conductive polyurethane foam will be broader.