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Viscosity and Flow Control: This is the most fundamental function of microcrystalline wax. As the component with the lowest viscosity in the formulation, it effectively reduces the viscosity of the hot-melt adhesive in its molten state and improves its flowability, allowing the adhesive to better wet and penetrate the surface of the substrates, thereby enhancing the bonding performance.
Enhancing Flexibility and Impact Resistance: Compared to paraffin wax, microcrystalline wax has a finer crystalline structure due to its higher content of branched-chain hydrocarbons and naphthenes. It imparts better flexibility, flexural strength, and elongation to hot-melt adhesives, which is crucial for packaging or bookbinding applications that must withstand a certain degree of deformation.
