Naslov
Creep Relaxation and Stress Relaxation of PS-HI/SEBS Blends

Autori
Rek, Vesna ; Holjevac Grgurić, Tamara ; Jelčić, Želimir

Izvornik
Macromolecular symposia (1022-1360) 202 (2003); 127-141

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
dynamic- mechanical behaviour ; creep ; stress relaxation ; time temperature superposition ; master curve ; high- impact polystyrene ; styrene-ethylene/buthylene-styrene block copolymer ; PS-HI/SEBS blends

Sažetak
For the selection of the polymer materials and polymer blends for various fields of applications the stability of material under constant deformation and constant load are very important. In this paper, the copolymers high impact polystyrene, PS-HI, styrene-ethylene/buthylene- styrene block copolymer, SEBS, and their blends PS-HI/SEBS were investigated. The investigations were done by DMA analysis. The secondary viscoelastic functions, creep, creep modulus, stress and flexurale relaxation modulus were investigated in creep and stress relaxation experiment at temperatures 25, 35, 45, 55 and 65 oC during 1 h. The master curves were created by time-temperature superposition principle. The correlation of the secondary viscoelastic functions with time, temperature and content of the hard, PS, phase was discussed.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

Napomena
Glavni autori: Tamara Holjevac Grgurić, Vesna Rek

POVEZANOST RADA