13. Conclusion

The rotational molding process makes it possible to manufacture complex polymer parts of large capacity with very economical means. It is present in practically all industrial fields. There are different types of rotomolding machines, carousel, rock and roll (throw), back and forth.

Significant progress in this technology has been made in recent years in terms of improving the performance of machines, molds, control systems, automation.

Different polymers are used for the manufacture of industrial parts, in particular polyethylene (nearly 85 %), but also polyamides, polypropylene, PVC, polyurethane, etc. However, this industry must be able to use other thermoplastic polymers or copolymers, but also thermosets, elastomers, blends, filled polymers, biopolymers. This is essential for manufacturing high-tech parts. Consideration should also...