Aging in quenched polycarbonate under compressive strain

被引：8

作者：

Cui, SZ ^{[1
]}

Nanzai, Y ^{[1
]}

Yoshioka, S ^{[1
]}

机构：

[1] Osaka City Univ, Dept Mech Engn, Osaka 5588585, Japan

来源：

KOBUNSHI RONBUNSHU | 2000年 / 57卷 / 01期

关键词：

aging; polycarbonate; compressive strain; yield stress; strain energy; differential scanning calorimetry; deformetion recovery;

D O I：

10.1295/koron.57.37

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Aging in quenched and subsequently compressed polycarbonate (PC) has been studied by mechanical compression, DSC and thermally stimulated deformation recovery. Evolution of yield stress with aging time was seen for quenched and then strained PC specimens, being much faster than that for what is called the physical aging of the same sample. Experimental data obtained by DSC and the thermally stimulated deformation recovery show that the strain energy given to the quenched PC specimen before aging is locked into physically aged structure more tightly with increasing aging time. Thus, the evolution of yield stress of the quenched and strained PC is probably due to the physically aged structure locking the strain energy tightly in itself.

引用

页码：37 / 44

页数：8

共 11 条

[1] PHYSICAL AGING BEHAVIOR OF A POLY(ARYLENE ETHERIMIDE) [J].

BRENNAN, AB ;

FELLER, F .

JOURNAL OF RHEOLOGY, 1995, 39 (02) :453-470

[2]

Cowie JMG, 1997, J POLYM SCI POL PHYS, V35, P1107, DOI 10.1002/(SICI)1099-0488(199705)35:7<1107::AID-POLB9>3.0.CO

[3]

2-S

[4] PHYSICAL AGING AND ENTHALPY RELAXATION IN POLYPROPYLENE [J].

HUTCHINSON, JM ;

KRIESTEN, U .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1994, 172 (pt 1) :592-596

[5] PHYSICAL AGING PHENOMENA IN AN AMORPHOUS POLYMER AT TEMPERATURES FAR BELOW THE GLASS-TRANSITION [J].

MUZEAU, E ;

VIGIER, G ;

VASSOILLE, R .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1994, 172 (pt 1) :575-579

[6] Mechanical and thermal analysis of aging in strained polymethyl methacrylate [J].

Nanzai, Y ;

Miwa, A ;

Cui, SZ .

JSME INTERNATIONAL JOURNAL SERIES A-SOLID MECHANICS AND MATERIAL ENGINEERING, 1999, 42 (04) :479-484

[7]

NANZAI Y, IN PRESS POLYM J

[8]

NANZAI Y, 1999, J SOC RHEOLOGY JAPAN, V27, P65

[9]

OLEYNIK E, 1989, PROG COLL POL SCI S, V80, P140

[10] EFFECT OF EXCESS THERMODYNAMIC PROPERTIES VERSUS STRUCTURE FORMATION ON PHYSICAL-PROPERTIES OF GLASSY POLYMERS [J].

PETRIE, SEB .

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1976, B 12 (02) :225-247

← 1 2 →