The antistatic property of polyester fiber with water content of 70% was greatly improved after it was treated with propanol solution of silicone quaternary ammonium carboxylic acid and dried at 175℃ for 60 s. Mar-tin et al. reported in the patent that [c8 h17ch (CH2) 7n (CH3) (ch2oh) 2]+cl-reacted with succinic anhydride in toluene solution, and then the solution was added into (EtO) 3Si(CH2) 3NH2 for refluxing and stirring for 2 hours, and then the solvent was removed in vacuum at 60℃ to obtain a viscous liquid.
After the fiber is treated with silicone quaternary ammonium salt, the dirt can be easily removed, which can greatly improve the detergency of the fabric. Dow Corning Company used silicone quaternary ammonium salt prepared by the reaction of methyl silicone oil with DC-5700 to finish the fabric, then polluted the treated fabric with liquid paraffin, washed it for 16 h, and all the dirt was removed. For another example, an amber quaternary ammonium salt silicone polymer was synthesized from hydroxyl-terminated dimethyl silicone oil and DC-5700, and then mixed with MeSi (OMe) 3 and tin mercaptan (as catalyst) to form a finishing agent, which has a good finishing effect on fabrics, especially the best decontamination effect.
Silicone quaternary ammonium salt containing hydrophilic groups can be compatible with anionic surfactants, effectively increasing the surface activity of materials. The different content of ethoxypropoxy in hydrophilic groups makes the products have different water solubility and cloud point. Therefore, this kind of products can be used to treat the fabric cloud point, so that the effective components can be directly deposited on the fabric surface to the maximum extent, thus reducing product consumption.
In addition, silicone quaternary ammonium salt can also improve the tear resistance and wear resistance of fabrics. When it is used to finish pure cotton fabric, the tear resistance and wear resistance of the finished fabric are higher than those of the unfinished fabric. Adding silicone quaternary ammonium salt into leather, metal and paint can greatly enhance the antibacterial and mildew-proof effects. Adding silicone quaternary ammonium salt into leather fatliquoring agent and finishing diluent not only increases softness and conjunctival firmness, but also has a particularly outstanding mildew-proof effect. Adding a certain amount of silicone quaternary ammonium salt into the anti-corrosion protective coating of ship bottom can not only inhibit corrosion, but also greatly improve the effectiveness of preventing algae and other organisms from attaching, maintain the speed of the ship and extend the maintenance cycle of the ship.
Silicone quaternary ammonium salt is mainly used in daily chemical industry, which affects the foam and viscosity of shampoo products. In dry or wet hair, it can effectively improve hair quality, adjust hair volume and curly hair setting, reduce tangles and improve carding performance. In addition, it can also be used in products such as toner and skin care, and also has a good conditioning effect.