Cationic surfactants represent a significant class of chemical compounds widely utilized across industries for their unique surface-active properties. Among these, Dioctadecyl Dimethyl Ammonium Chloride (DDAC), CAS 107-64-2, stands out for its effectiveness as a softener, antistatic agent, and disinfectant. As a specialized chemical supplier, NINGBO INNO PHARMCHEM CO.,LTD. offers a deep understanding of how these compounds function and how they can benefit your products.

The defining characteristic of cationic surfactants is their positively charged hydrophilic head group. In the case of DDAC, this structure features two long hydrophobic alkyl chains (octadecyl) attached to a quaternary ammonium cation, paired with a chloride anion. This molecular architecture dictates its behavior at interfaces and its interactions with negatively charged surfaces, which are prevalent in many materials like textiles and biological membranes.

How DDAC Works in Key Industrial Applications:

  • Softening and Conditioning: In textiles and hair care, the positively charged DDAC molecules adsorb onto negatively charged fibers or hair strands. This forms a lubricating layer, reducing friction between fibers and imparting a smooth, soft feel. This is why many fabric softener and hair conditioner formulations seek to buy this specific surfactant.
  • Antistatic Properties: Static electricity typically arises from a build-up of negative charges. DDAC's positive charge helps to dissipate these charges by attracting moisture and creating a more conductive surface, thereby preventing static cling. This is invaluable for manufacturers in the plastics and textile industries.
  • Antimicrobial Action: The positive charge on the quaternary ammonium group is also key to DDAC's disinfectant and bactericidal properties. It disrupts the integrity of microbial cell membranes, leading to cell death. This makes it a critical ingredient for sanitizers and preservatives.
  • Emulsification: DDAC can stabilize oil-in-water or water-in-oil emulsions by forming a protective layer around dispersed droplets, preventing them from coalescing. This is beneficial in applications such as asphalt emulsions and certain industrial formulations.

NINGBO INNO PHARMCHEM CO.,LTD. is a dedicated manufacturer and supplier of Dioctadecyl Dimethyl Ammonium Chloride, providing businesses with access to high-quality chemicals. We understand the technical aspects of these compounds and are ready to assist you in selecting the right product for your formulation. Whether you are looking to improve fabric feel, reduce static, or enhance your disinfectant products, our DDAC is an excellent choice. Contact us for competitive prices and reliable supply.