Understanding the science behind our chemical solutions is key to appreciating their impact. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing products backed by robust research and development, and our AKD High Polymer Emulsifier is no exception. This advanced formulation leverages specific chemical properties to deliver superior water resistance in paper products.

At its core, the function of AKD (Alkyl Ketene Dimer) in papermaking is to create a hydrophobic surface on the paper fibers. This is achieved through a chemical reaction where the lactone ring of the AKD molecule reacts with hydroxyl groups on cellulose and starch during the drying process. This reaction forms a stable ester linkage, creating a water-repellent barrier. However, AKD itself is a wax at room temperature and needs to be dispersed into a stable emulsion for effective application. This is where the emulsifier plays a crucial role.

Our AKD High Polymer Emulsifier is a cationic polymer. The 'cationic' aspect refers to its positive electrical charge. In an aqueous environment, this positive charge allows it to strongly adsorb onto the surfaces of the AKD wax particles, which may carry a slight negative charge or become negatively charged during dispersion. This electrostatic attraction creates a stable film around each AKD particle, preventing them from clumping together. This mechanism is vital for creating a fine, stable emulsion with a small particle size, which is essential for even distribution and effective penetration into the paper structure.

The scientific advantage of using a high polymer emulsifier over simpler surfactants or starches lies in its molecular structure and charge density. This sophisticated structure provides superior steric and electrostatic stabilization to the AKD emulsion. It reduces the surface tension effectively and creates a more robust interfacial layer, thus minimizing hydrolysis and maximizing the shelf life of the emulsion. When applied to paper, the well-stabilized AKD particles, facilitated by the polymer emulsifier, are better positioned to react with the cellulose fibers, resulting in a denser, more effective hydrophobic layer. This scientific approach to emulsification by NINGBO INNO PHARMCHEM CO.,LTD. directly translates to enhanced water resistance, improved Cobb values, and better overall paper performance. By understanding this chemistry, papermakers can better appreciate the value and efficacy of our advanced chemical solutions.