Article | REF: AM3748 V1

Safety in plastics processing

Author: Maurice NIVON

Publication date: July 10, 2001

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

6. Waste recycling

  • Thermoplastics that solidify after cooling can be replasticized for reuse in injection and extrusion processes. In this way, defective parts, waste material from :

    • channels for feeding molds (sprues) and/or production start-ups;

    • in-process material changes (purging);

    • sheets from which thermoformed parts (skeletons) have been cut;

    can be fragmented into calibrated grains, which are then mixed with virgin pellets when the plasticizing cylinders of extruders or injection molding machines are fed.

    Similarly, thermoplastic packaging (bags, bottles, cans, containers) can be compacted in a baler after use. This waste is shredded to obtain small volumes, which are then fragmented in blade mills to...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Plastics and composites

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Waste recycling