TABLE OF CONTENTS Post-processing and assembly methods are the operations that determine the final nature of end products. Moulded polyethylene (PE) articles may be subjected to several operations such as joining by welding (friction, vibration, hot gas and hot plate, ultrasonic, radio frequency) or gluing, machining, or decorating (Table 8.1) [1].
| Property | LDPE | HDPE | PP | HIPS | PVC | ABS |
|---|---|---|---|---|---|---|
| Bonding | 5 | 5 | 5 | 9 | 9 | 8 |
| Machining | 5 | 8 | 8 | 4 | 5 | 9 |
| Painting | 1 | 4 | 4 | 8 | 6 | 8 |
| Plating | 0 | 0 | 0 | 1 | 0 | 6 |
| Friction welding | 8 | 8 | 9 | 8 | 8 | 8 |
| Vibration welding | 8 | 8 | 9 | 8 | 8 | 8 |
| Hot gas welding | 7 | 7 | 9 | 7 | 9 | 6 |
| Hot plate welding | 8 | 8 | 9 | 8 | 9 | 8 |
| Ultrasonic welding | 2 | 5 | 4 | 7 | 5 | 9 |
| Radio frequency welding | 0 | 0 | 0 | 0 | 8 | 0 |
| ABS: acrylonitrile butadiene styrene HIPS: high-impact polystyrene PP: polypropylene HDPE: high-density PE LDPE: low-density PE PVC:... |
