Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

Composites with a thermoplastic resin reinforced with short fibres or platelets are commonly processed by injection molding. As far as the fibre orientation is concerned, a stratification generally appears during this operation: near the mould surfaces the fibres are oriented in the direction of the flow, whereas in the middle they are oriented perpendicularly to this direction. The flow parameters obviously determine the relative thickness of this core region and consequently the longitudinal and transverse properties of the composite material. The moulding process has therefore to be optimized so that these anisotropy variations contribute the composite to fulfil the mechanical performance specifications. The in-depth resolved characterization of the filler local orientation as well as its control are thus of prime importance.

Volume

15A

Chapter

Chapter 1: Standard Techniques

Section

Thermal Techniques

Pages

533-540

DOI

10.1007/978-1-4613-0383-1_68

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Thermal Ellipsometry: A Tool Applied for in-Depth Resolved Characterization of Fibre Orientation in Composites

Seattle, WA

Composites with a thermoplastic resin reinforced with short fibres or platelets are commonly processed by injection molding. As far as the fibre orientation is concerned, a stratification generally appears during this operation: near the mould surfaces the fibres are oriented in the direction of the flow, whereas in the middle they are oriented perpendicularly to this direction. The flow parameters obviously determine the relative thickness of this core region and consequently the longitudinal and transverse properties of the composite material. The moulding process has therefore to be optimized so that these anisotropy variations contribute the composite to fulfil the mechanical performance specifications. The in-depth resolved characterization of the filler local orientation as well as its control are thus of prime importance.