In what form are elastomers processed?

In the Elastomer production Depending on the material and forming process, they are processed into felt, endless strips, or granules. Vulcanizable rubber compounds are usually supplied as blend felt for compression molding or as endless strips for injection molding and extrusion. Thermoplastic elastomers (TPE), on the other hand, come in the form of granules because they are melted like thermoplastics and processed without vulcanization.

When are elastomers processed as a granular product?

Thermoplastic elastomers (TPE) They are delivered in granular form as small, flowable beads and are injected or extruded without vulcanization like thermoplastics. Because granules are prone to spillage, they can be automatically conveyed, precisely dosed, and colored with masterbatches. Hygroscopic TPEs such as thermoplastic polyurethane (TPU) must be dried before processing, as otherwise bubbles form during processing.

What is a rubber compound leatherette?

A mixed leather is a rubber mixture that is rolled out on a rolling mill into a sheet several millimeters thick, which also Calendering The rubber, fillers, plasticizers and crosslinking chemicals are first mixed in a mixer to form a homogeneous mixture. For the Compression presses The rubber foam is cut into billets for further processing and placed directly into the heated mold.

What are rubber endless strips?

Endless strips are narrow, continuous strips of rubber compound that are extruded into a customer-specific shape and then placed in a wig-wag in a grid box. In rubber injection molding, the machine screw continuously pulls the endless strip, enabling automated transport. Rubber compounds are only limitedly stockable as either a strip or endless strip because they slowly vulcanize at room temperature.