Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Thermoplastic elastomers from rigid polyols

Polyurethanes are very versatile polymers. They are used as flexible and rigid foams, elastomers, and coatings. Polyurethanes are available as both thermosets and thermoplastics. In addition, their hardnesses span the range from rigid material to elastomer. Thermoplastic polyurethanes will be the focus of this section. The term polyurethane is used to cover materials formed from the reaction of isocyanates and polyols. The general reaction for a polyurethane produced through the reaction of a diisocyanate with a diol is shown in Fig. 2.35. [Pg.99]

Polyurethanes are obtained by the reaction between polyols and isocyanates. They are of diverse chemical natures and applications. Most are thermosets (see Thermosets and Composites, M. Biron, Elsevier Ltd (2004) ISBN 1856174115) but others are thermoplastics (TPU), ranging from elastomer flexibility to polyethylene rigidity. [Pg.691]


See other pages where Thermoplastic elastomers from rigid polyols is mentioned: [Pg.795]    [Pg.200]    [Pg.795]    [Pg.244]    [Pg.448]    [Pg.795]    [Pg.266]    [Pg.280]    [Pg.251]    [Pg.199]    [Pg.251]    [Pg.511]    [Pg.531]   
See also in sourсe #XX -- [ Pg.407 ]




SEARCH



Thermoplastic elastomers

© 2024 chempedia.info