SPECIFIC FEATURES OF SOLVENT CRAZING OF B ULK POLY(ETHYLENE-TEREPHTHALATE) SAMPLES

Citation
Al. Volynskii et al., SPECIFIC FEATURES OF SOLVENT CRAZING OF B ULK POLY(ETHYLENE-TEREPHTHALATE) SAMPLES, Vysokomolekularnye soedinenia. Seria A, 38(2), 1996, pp. 269-275
Citations number
13
Categorie Soggetti
Polymer Sciences
ISSN journal
05075475
Volume
38
Issue
2
Year of publication
1996
Pages
269 - 275
Database
ISI
SICI code
0507-5475(1996)38:2<269:SFOSCO>2.0.ZU;2-N
Abstract
Specific features of solvent crazing in thick PET films with thickness es of 170 and 700 mu m were studied. Experimental evidence obtained by the methods of pressure-driven liquid permeability and small-angle X- ray scattering showed that parameters of fibrillar-porous structure of solvent crazes in thick PET films were independent of loading conditi ons as well as of the nature of a surface-active liquid environment. S olvent crazing in thick polymer films was also studied by optical and scanning electron microscopies. Direct microscopic observations showed that the specific features of solvent crazing in bulk PET samples wer e related to branching of individual crazes and development of numerou s smaller crazes and shear bands containing microscopic pores in the c ore region of a sample.