Cationic surfactants are widely used in asphalt emulsification and waterproof coating emulsification, silicone oil emulsification, hair conditioner cosmetics emulsification and conditioning, fabric fiber softness and antistatic, Organic Bentonite Modification, protein flocculation and water treatment flocculation in biopharmaceutical industry, glass fiber softening processing, anti burning treatment agent for nylon parachute surface, bactericide and disinfectant, etc.