Process Features
Hot-melt adhesives (EVA, POE, SIS/SBS rubber-based) are compounded at 100-180°C. The base materials have high softening points and high tack, requiring precise temperature control to prevent degradation and strong shear for additive dispersion.
- Narrow temperature window: too hot degrades the base; too cold cannot fully compound
- Discharge method matters: molten high-viscosity material suits screw extrusion
- Downstream integration: screw discharge feeds pelletizers or coaters directly
Recommended Models
- Screw-discharge horizontal kneader: first choice for continuous production
- Hydraulic tilting model: flexible for small batches and frequent recipe changes
Typical Options
- Thermal oil heating jacket, uniform temperature throughout
- Screw discharge system (VFD speed control)
- Nitrogen protection port (prevents high-temperature oxidation)
- Enclosed design to minimize odor emission