TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

A urethane is formed from the reaction of an isocyanate with an alcohol. In general, polyurethanes are made using a diisocyanate, a low molecular weight diol(thermoplastic) and/or triol(cross-linked), and a polyether glycol or a polyester glycol. If the reagents are difunctional, a non cross-linked thermoplastic polyurethane will be formed; if the functionality of at least one of the reagents is greater than two, a cross-linked or three dimensional network will form. Cross-linked polyurethanes exhibit less mechanical creep than non cross-linked polyurethanes. The rubbery modulus of polyurethanes increases as the level of cross-linking is increased. Polyurethanes are diblock copolymers. They consist of hard segments(isocyanate and the chain extender rich areas) that act as physical crosslinks, and soft segments(polyether or polyester glycol rich areas).  3, fiche 1, Anglais, - three%20dimensional%20network

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Les adhésifs époxydes sont constitués de : [...] un (ou des) durcisseur(s) ou agent(s) de réticulation qui, par réaction chimique avec les groupements époxydes, permettent la formation du réseau tridimensionnel réticulé.  2, fiche 1, Français, - r%C3%A9seau%20tridimensionnel

Record number: 1, Textual support number: 2 CONT

La structure des TD (résines thermodurcissables) a la forme d'un réseau tridimensionnel qui se ponte (double liaison de polymérisation) pour durcir en forme de façon définitive, lors d'un échauffement. La transformation est donc irréversible.  3, fiche 1, Français, - r%C3%A9seau%20tridimensionnel

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

A urethane is formed from the reaction of an isocyanate with an alcohol. In general, polyurethanes are made using a diisocyanate, a low molecular weight diol(thermoplastic) and/or triol(cross-linked), and a polyether glycol or a polyester glycol. If the reagents are difunctional, a non cross-linked thermoplastic polyurethane will be formed; if the functionality of at least one of the reagents is greater than two, a cross-linked or three dimensional network will form. Cross-linked polyurethanes exhibit less mechanical creep than non cross-linked polyurethanes. The rubbery modulus of polyurethanes increases as the level of cross-linking is increased. Polyurethanes are diblock copolymers. They consist of hard segments(isocyanate and the chain extender rich areas) that act as physical crosslinks, and soft segments(polyether or polyester glycol rich areas).  2, fiche 2, Anglais, - polyester%20glycol

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

A urethane is formed from the reaction of an isocyanate with an alcohol. In general, polyurethanes are made using a diisocyanate, a low molecular weight diol(thermoplastic) and/or triol(cross-linked), and a polyether glycol or a polyester glycol. If the reagents are difunctional, a non cross-linked thermoplastic polyurethane will be formed; if the functionality of at least one of the reagents is greater than two, a cross-linked or three dimensional network will form. Cross-linked polyurethanes exhibit less mechanical creep than non cross-linked polyurethanes. The rubbery modulus of polyurethanes increases as the level of cross-linking is increased. Polyurethanes are diblock copolymers. They consist of hard segments(isocyanate and the chain extender rich areas) that act as physical crosslinks, and soft segments(polyether or polyester glycol rich areas).  3, fiche 3, Anglais, - cross%2Dlinked%20network

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

Les adhésifs époxydes sont constitués de : [...] un (ou des) durcisseur(s) ou agent(s) de réticulation qui, par réaction chimique avec les groupements époxydes, permettent la formation du réseau tridimensionnel réticulé.  3, fiche 3, Français, - r%C3%A9seau%20pont%C3%A9

Record number: 3, Textual support number: 1 OBS

La structure des TD (résines thermodurcissables) a la forme d'un réseau tridimensionnel qui se ponte (double liaison de polymérisation) pour durcir en forme de façon définitive, lors d'un échauffement. La transformation est donc irréversible.  4, fiche 3, Français, - r%C3%A9seau%20pont%C3%A9

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 CONT

A urethane is formed from the reaction of an isocyanate with an alcohol. In general, polyurethanes are made using a diisocyanate, a low molecular weight diol(thermoplastic) and/or triol(cross-linked), and a polyether glycol or a polyester glycol. If the reagents are difunctional, a non cross-linked thermoplastic polyurethane will be formed; if the functionality of at least one of the reagents is greater than two, a cross-linked or three dimensional network will form. Cross-linked polyurethanes exhibit less mechanical creep than non cross-linked polyurethanes. The rubbery modulus of polyurethanes increases as the level of cross-linking is increased. Polyurethanes are diblock copolymers. They consist of hard segments(isocyanate and the chain extender rich areas) that act as physical crosslinks, and soft segments(polyether or polyester glycol rich areas).  2, fiche 4, Anglais, - difunctional%20reagent

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 CONT

nous [...] sommes restés dans l'idée d'utiliser un diluant réactif difonctionnel qui jouera le rôle de plastifiant interne. Ce diluant, par sa présence, diminuera la viscosité du mélange fondu et augmentera son temps de gel.  2, fiche 4, Français, - r%C3%A9actif%20difonctionnel

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 CONT

A urethane is formed from the reaction of an isocyanate with an alcohol. In general, polyurethanes are made using a diisocyanate, a low molecular weight diol(thermoplastic) and/or triol(cross-linked), and a polyether glycol or a polyester glycol. If the reagents are difunctional, a non cross-linked thermoplastic polyurethane will be formed; if the functionality of at least one of the reagents is greater than two, a cross-linked or three dimensional network will form. Cross-linked polyurethanes exhibit less mechanical creep than non cross-linked polyurethanes. The rubbery modulus of polyurethanes increases as the level of cross-linking is increased. Polyurethanes are diblock copolymers. They consist of hard segments(isocyanate and the chain extender rich areas) that act as physical crosslinks, and soft segments(polyether or polyester glycol rich areas).  2, fiche 5, Anglais, - rubbery%20modulus

Record number: 5, Textual support number: 2 CONT

It has been reported that the glassy and rubbery modulus of a curing resin is relatively insensitive to the degree of cure of the material.  3, fiche 5, Anglais, - rubbery%20modulus

Fiche 5,  Justifications,  Français

Fiche 5,  Justifications,  Espagnol

Fiche 6,  Justifications,  Anglais

Record number: 6, Textual support number: 1 CONT

Urethane rubber... Broader Terms :Polyester rubber, Polyurethanes. Related Terms : Spandex fibers....  2, fiche 6, Anglais, - urethane%20rubber

Fiche 6,  Justifications,  Français

Record number: 6, Textual support number: 1 OBS

La graphie « uréthane » est la plus courante.  2, fiche 6, Français, - caoutchouc%20ur%C3%A9thanne

Fiche 6,  Justifications,  Espagnol

Fiche 7,  Justifications,  Français

Fiche 7,  Justifications,  Espagnol