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Titolo:
MORPHOLOGY AND DEFORMATION MECHANISMS OF POLYSTYRENE LOW-DENSITY POLYETHYLENE BLENDS STUDIED BY TEM
Autore:
XU SA; JIANG M; SHEN JS;
Indirizzi:
FUDAN UNIV,DEPT MACROMOLEC SCI SHANGHAI 200433 PEOPLES R CHINA FUDAN UNIV,DEPT MACROMOLEC SCI SHANGHAI 200433 PEOPLES R CHINA FUDAN UNIV,MOLEC ENGN POLYMERS LAB SHANGHAI 200433 PEOPLES R CHINA ACAD SINICA,INST CHEM,POLYMER PHYS LAB BEIJING 100080 PEOPLES R CHINA
Titolo Testata:
Polymer Journal
fascicolo: 6, volume: 27, anno: 1995,
pagine: 607 - 613
SICI:
0032-3896(1995)27:6<607:MADMOP>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
MULTICOMPONENT POLYMER SYSTEMS; MOLECULAR DESIGN; CO-POLYMERS;
Keywords:
POLYETHYLENE; POLYSTYRENE; POLYMER BLENDS; ELECTRON MICROSCOPY; DEFORMATION MECHANISM; CRAZE; SHEAR YIELD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
S.A. Xu et al., "MORPHOLOGY AND DEFORMATION MECHANISMS OF POLYSTYRENE LOW-DENSITY POLYETHYLENE BLENDS STUDIED BY TEM", Polymer Journal, 27(6), 1995, pp. 607-613

Abstract

The present investigation deals with morphology and deformation mechanisms of the plastic-toughened plastic system composed of a crystalline (low density polyethylene, LDPE) and an amorphous (polystyrene, PS) component. By proper use of a solution-melt procedure of specimen preparation for transmission electron microscope (TEM), not only the multiphase structure of the PS/LDPE blends, but also details of the crystalline morphology of LDPE in the blends have been successfully revealed. Based on the TEM morphological observations of the blends under in-situ stretching process, the toughness and deformation mechanisms of theblends are explored. It is found that multiple-craze is the main mechanism of deformation and toughening when LDPE constitutes the dispersed phase, whereas shear-yielding becomes major deformation mode when LDPE forms the continuous phase.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 09:47:16