1.Principle of outer coating type antistatic agent
When such an antistatic agent is added to water, the hydrophilic group in the antistatic agent molecule is inserted into the water, and the lipophilic group extends to the air. When polymer materials
are impregnated with this solution, the lipophilic groups in the molecules of the antistatic agent are adsorbed on the surface of the material. On the surface of the polymer material after drying afte
r the impregnation, the hydrophilic groups in the antistatic agent molecules are aligned towards the air side, and it is easy to absorb environmental moisture, or combine with the moisture in the air
through hydrogen bonding to form a The single-molecule conductive layer allows the generated electrostatic charges to leak quickly and achieve antistatic purposes.
2.The working principle of surface-active antistatic agents
During the molding of polymer materials, if the antistatic agent is contained in a sufficient concentration, when the mixture is in a molten state, the antistatic agent molecules form the densest orie
ntation at the interface between resin and air or resin and metal (mechanical or mold). Arrangement, in which the lipophilic group extends to the inside of the resin, and the hydrophilic group extends