EFFECTS OF PREPREG AGING AND POSTCURE HYGROTHERMAL CONDITIONING ON THE MECHANICAL-BEHAVIOR OF CARBON-FIBER EPOXY LAMINATES

被引：32

作者：

AKAY, M

机构：

[1] Department of Mechanical and Industrial Engineering, University of Ulster at Jordanstown, Newtownabbey, Co. Antrim, BT37 0QB, Shore Road

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 1990年 / 38卷 / 04期

关键词：

Hygrothermal Conditioning - Impact Strength - Moisture Plasticisation - Prepreg Ageing;

D O I：

10.1016/0266-3538(90)90021-V

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Panels were prepared from unidirectional carbon-fibre/epoxy prepregs with known out-of-fridge times, and tested both as-cured and after hygrothermal conditioning. Prepreg ageing times of almost twice the handling-life caused slight variation in relaxation-transition behaviour but had no significant effect on flexural, ILSS, compressive and impact properties tested at room temperature. Hot/wet conditioning affected failure modes and caused a constant level of deterioration in mechanical properties over the prepreg out-time range. Moisture plasticisation also reduced glass transition temperature by 50°C. This magnitude of depression in Tg lies between the predicted values of Kelley-Bueche and Couchman-Karasz. © 1990.

引用

页码：359 / 370

页数：12

共 21 条

[1]

AKAY M, 1973, J OIL COLOUR CHEM AS, V56, P86

[2] GLASS-TRANSITION TEMPERATURES FOR SIMPLE MOLECULAR LIQUIDS AND THEIR BINARY-SOLUTIONS [J].

ANGELL, CA ;

SARE, JM ;

SARE, EJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1978, 82 (24) :2622-2629

[3]

Browning C. E., 1977, ASTM STP, V617, P481

[4] ENTROPY MODEL FOR GLASS-TRANSITION IN WET RESINS AND COMPOSITES [J].

CARTER, HG ;

KIBLER, KG .

JOURNAL OF COMPOSITE MATERIALS, 1977, 11 (JUL) :265-275

[5] CLASSICAL THERMODYNAMIC DISCUSSION OF EFFECT OF COMPOSITION ON GLASS-TRANSITION TEMPERATURES [J].

COUCHMAN, PR ;

KARASZ, FE .

MACROMOLECULES, 1978, 11 (01) :117-119

[6] THE COMPOSITION-DEPENDENT GLASS-TRANSITION - RELATIONS BETWEEN TEMPERATURE, PRESSURE, AND COMPOSITION [J].

COUCHMAN, PR .

POLYMER ENGINEERING AND SCIENCE, 1984, 24 (02) :135-143

[7] INTERACTION OF EPOXY-RESINS WITH WATER - THE DEPRESSION OF GLASS-TRANSITION TEMPERATURE [J].

ELLIS, TS ;

KARASZ, FE .

POLYMER, 1984, 25 (05) :664-669

[8] SOLVENT CRAZING OF DRY POLYSTYRENE AND DRY CRAZING OF PLASTICIZED POLYSTYRENE [J].

KAMBOUR, RP ;

GRUNER, CL ;

ROMAGOSA, EE .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1973, 11 (10) :1879-1890

[9] VISCOSITY AND GLASS TEMPERATURE RELATIONS FOR POLYMER-DILUENT SYSTEMS [J].

KELLEY, FN ;

BUECHE, F .

JOURNAL OF POLYMER SCIENCE, 1961, 50 (154) :549-&

[10] SWELLING AND GLASS-TRANSITION RELATIONS FOR EPOXY MATRIX MATERIAL IN HUMID ENVIRONMENTS [J].

MCKAGUE, EL ;

REYNOLDS, JD ;

HALKIAS, JE .

JOURNAL OF APPLIED POLYMER SCIENCE, 1978, 22 (06) :1643-1654

← 1 2 3 →