Modified Poly Urethanes with Enhanced Thermal Properties (häftad)
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Format
Häftad (Paperback / softback)
Språk
Engelska
Antal sidor
136
Utgivningsdatum
2014-04-24
Förlag
LAP Lambert Academic Publishing
Illustrationer
black & white illustrations
Dimensioner
229 x 152 x 8 mm
Vikt
209 g
Antal komponenter
1
Komponenter
Paperback
ISBN
9783659536038
Modified Poly Urethanes with Enhanced Thermal Properties (häftad)

Modified Poly Urethanes with Enhanced Thermal Properties

Häftad Engelska, 2014-04-24
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Since polyurethanes display a softening point at high temperatures and flows under pressure and may even melt, this puts severe limitations on the useful applications of PUs. At around 100C the properties like tensile strength, modulus etc: start to diminish and at temperatures above 200C, thermal degradation sets in, depending again on the nature of back-bone. Chemical modifications and cross linking are some proposed ways to overcome these deficiencies. Indeed, the general approach for improvement of thermal stability of polyurethanes has been by way of chain modification with hetrocyclic groups. As an alternative to chemical modifications, radiation cross linked thermoplastic polyurethanes showed improved thermal resistance properties. Therefore ,further developments to enhance the thermal properties will be in focus in the future to broaden the applications of these category of versatile industrial polymers.
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