Rheological characterisation of discrete long glass fibre (LGF) reinforced thermoplastics

被引：26

作者：

Bush, SF ^{[1
]}

Torres, FG ^{[1
]}

Methven, JM ^{[1
]}

机构：

[1] UMIST, Polymer Engn Res Lab, Manchester M60 1QD, Lancs, England

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2000年 / 31卷 / 12期

关键词：

polymer-fibre composites; rheological properties; extrusion; injection moulding;

D O I：

10.1016/S1359-835X(00)00089-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three experimental techniques have been employed to assess the rheological behaviour of discrete long glass fibre reinforced polypropylene and propylene/ethylene copolymers. A Carri Med cone and plate rheogoniometer has been used to determine shear viscosity as a function of strain rate and time at temperatures relevant to the extrusion and injection moulding processes. A bubble inflation test (BIT) has been designed and used to characterise the behaviour of these composites under the extensional flow fields typical of blow moulding and thermoforming. Finally a squeeze load test (SLT), similar to those developed for sheet moulding compounds (SMC) and glass mat thermoplastics (GMT), has been used to explore the rheological behaviour of the long glass fibre (LGF) materials under compression moulding conditions, in particular to assess the relative importance of shear and extensional flow. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1421 / 1431

页数：11

共 19 条

[1]

ALARAJ S, 1999, RHEOLOGICAL CHARACTE

[2] KINEMATICS OF FLOW IN SHEET MOLDING COMPOUNDS [J].

BARONE, MR ;

CAULK, DA .

POLYMER COMPOSITES, 1985, 6 (02) :105-109

[3]

BIRD RB, 1987, DYNAMICS POLYMERIC L, V1, P185

[4]

Bush S.F., 1993, US Patent, Patent No. 5264261

[5]

BUSH SF, 1995, PLAST RUB COMPOS PRO, V24, P139

[6]

BUSH SF, 1999, INT POLYM P, V14

[7] MEASUREMENTS ON BIAXIAL EXTENSION VISCOSITY OF BULK POLYMERS - INFLATION OF A THIN POLYMER SHEET [J].

DENSON, CD ;

GALLO, RJ .

POLYMER ENGINEERING AND SCIENCE, 1971, 11 (02) :174-&

[8]

GAN LC, 1999, EXTENSIONAL RHEOLOGY

[9] BUBBLE INFLATION TECHNIQUE FOR MEASUREMENT OF VISCOELASTIC PROPERTIES IN EQUAL BIAXIAL EXTENSIONAL FLOW .2. [J].

JOYE, DD ;

POEHLEIN, GW .

TRANSACTIONS OF THE SOCIETY OF RHEOLOGY, 1973, 17 (02) :287-302

[10]

KOTSIKOS G, 1998, 7 INT C FIBR REINF C, P165

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