OPE WAX for viscosity adjustment in hot melt adhesives

Oxidized polyethylene wax is employed for viscosity adjustment in hot melt
adhesives, primarily functioning through the following mechanisms:
Viscosity Modulation: Within hot melt adhesives, oxidized polyethylene wax
primarily functions as a viscosity modifier. Adjusting the wax dosage alters
melt viscosity to accommodate diverse application requirements. For instance,
during hot melt production, viscosity specifications tailored to specific
applications—such as packaging or footwear bonding—are achieved by
optimising flow properties and adhesion through precise wax addition. ‌
Process Adaptability: Hot melt adhesive viscosity must coordinate with
process parameters such as curing time and wetting properties. Oxidized
polyethylene wax balances the viscoelastic characteristics of the adhesive by
regulating molecular alignment in the molten state, preventing application
difficulties from excessive viscosity or oil bleeding from insufficient
viscosity. ‌
Storage Stability: Possessing a narrow melting range and high softening
point, this wax prevents agglomeration or separation in hot melt adhesives
during storage caused by temperature fluctuations. Its antioxidant properties
simultaneously extend the product's shelf life.