Alkyl Ketene Dimer (AKD) wax, identified by CAS 144245-85-2, is more than just a chemical additive; it's a sophisticated solution for imparting essential water resistance to paper products. The papermaking industry's reliance on AKD stems from its unique reactivity and effectiveness in neutral and alkaline conditions, a significant advancement over older acid-based sizing methods. As NINGBO INNO PHARMCHEM CO.,LTD., we are proud to supply this vital chemical, enabling manufacturers to produce higher quality and more durable paper.

The chemical structure of AKD wax is key to its function. It contains a reactive β-lactone ring which can react with the hydroxyl groups (-OH) present on cellulose fibers. This reaction forms a stable covalent bond, effectively anchoring hydrophobic alkyl chains to the paper's surface. These hydrophobic tails then orient themselves outwards, creating a barrier that significantly reduces the penetration rate of aqueous liquids. This process is fundamental to creating papers that can withstand moisture, ink spread, and other water-related challenges.

For optimal performance, AKD wax needs to be properly processed. Typically, it is first emulsified into a stable latex form. This step is crucial because AKD is a solid at room temperature (melting point ≥47°C) and is insoluble in water. The emulsification process, often involving careful control of particle size and stability, ensures that the AKD can be uniformly distributed within the paper pulp or applied to the paper surface. As a supplier, we provide AKD with properties like good solubility in organic solvents, which aids in its formulation and processing. Our commitment to high assay (≥90%) ensures that the reactive potential of the AKD is maximized.

The adoption of AKD for paper sizing offers numerous benefits, including improved paper permanence, reduced environmental impact from production processes, and enhanced runnability in printing and converting. Understanding the science behind AKD empowers paper manufacturers to leverage its full potential. If you are looking to buy Alkyl Ketene Dimer or seeking a reliable manufacturer for your chemical supply needs, NINGBO INNO PHARMCHEM CO.,LTD. offers consistent quality and technical expertise to support your operations.