Acrylic Processing Aid
Acrylic Processing Aid is a high-molecular-weight polymethyl methacrylate-based additive that significantly improves the fusion, melt strength, and processing behavior of rigid PVC compounds. It accelerates gelation and homogenizes the melt, resulting in improved surface gloss, dimensional stability, and reduced melt fracture. Used at 1–3 phr, it is essential for high-output extrusion, calendering, and injection molding of rigid PVC.
Technical Specifications
| appearance | White free-flowing powder |
| moisture (%) | ≤0.5 |
| bulk density (g/mL) | 0.35–0.55 |
| particle size (D50, μm) | 100–200 |
| molecular weight (×10⁶ g/mol) | 3–6 |
Applications
- Rigid PVC pipe and profile extrusion
- PVC foam board production
- PVC calendered sheet
- PVC injection molding
- High-speed extrusion blow molding
Key Features
- Accelerates PVC fusion and homogenizes melt
- Improves melt strength and reduces melt fracture
- Enhances surface gloss and dimensional stability
- Enables higher output rates in extrusion
