3. Reaction molding
The materials used in the reaction molding process are polymers (essentially from the polyurethane family) resulting from an exothermic addition reaction of two liquid products dosed in specific quantities and mixed before being introduced into a mold.
Reactive products are generally :
isocyanates and polyols;
amines such as methylene bis orthochloraniline (MOCA)
.[9]
To these reactive products are added non-reactive products such as catalysts and blowing agents for foams and lightweight materials. Depending on the reactive products used and their dosages, we obtain: flexible materials (elastomers), rigid or flexible foams and thermosetting resins.
We distinguish...
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
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
Reaction molding
References
References
Also in our database
Regulations
EEC Directives
Directive 2006/42/EC on the approximation of the laws of the Member States relating to machinery. Adopted in April 2006. Published in June 2006 in the EU Official Journal. It must be transposed by each state into its own law by June 29, 2008 at the latest. Its application date has been set at December 29, 2009. Until then, Directive 98/37/EC remains valid.
Annex 1: Essential...
Standards and norms
Association française de normalisation AFNOR
- Machines pour le caoutchouc et les matières plastiques. Machine à injecter. Prescriptions de sécurité. Indice de classement : E63-600 - NF EN 201 - 11-97
- Indice de classement : E63-600/A1 - NF EN 201/A1 - 05-00
- Indice de classement : E63-600/A2 - NF EN 201/A2 - 12-05
- Machines pour...
Document modified by the amendments
Websites
French legislation http://www.legifrance.gouv.fr
European Union http://europa.eu.int/scadplus/scad_fr.htmhttp://europa.eu.int
Directory
Organizations – Federations – Associations (non-exhaustive list)
AFICEP (French Association of Rubber and Polymer Engineers and Managers) http://www.aficep.com
AFNOR (Association Française de Normalisation) www.afnor.fr
ASTM International...
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