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1. Reactive systems
1.1 Polyurethanes
Polyurethanes are the most widely used family of RIM processes.
A urethane is obtained by adding an alcohol to an isocyanate in the following reaction (ionic process):
In practice, the mixtures used, traditionally called components A and B, have the following typical composition:
A: diisocyanate
B :polyol + crosslinker: short-chain diol
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Reactive systems
Reinforcements and loads
Statistical and economic data
For exterior body parts, the world market for R-RIM and S-RIM materials was around 200,000 t/year in 2000, broken down as follows:
NAFTA (including United States): 70% ;
Asia (including Japan): 20% ;
Europe: 10%.
NAFTA: North American Free Trade Agreement....
References
References
- (1) - TOUHSAENT (R.E.), THOMAS (D.A.), SPEILING (L.H.) - J. Polymer Science, 46, p. 175 (1974).
- (2) - KLEMPNER (D.) - Angew. Chem. Int. Ed. Enge, 17, p. 97-106 (1978).
Works
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Manufacturers – Suppliers – Distributors (non-exhaustive list)
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Equipment manufacturers for R-RIM and S-RIM
Cannon http://www.cannon.fr
Krauss-Maffei http://www.kraussmaffei.com
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Events
European Composites Day (Paris. Every year) JEC Group http://www.jeccomposites.com
Journées Nationales sur les Composites (France. Every two years) – AMAC http://www.amac-composites.asso.fr
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