A Study of Fibre Attrition in the Processing of Long Fibre Reinforced Thermoplastics
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R. Bailey
Abstract
A study has been carried out which demonstrates a technique for measuring long fibre lengths. This technique has been used successfully to discuss subtle differences in the fibre length distributions arising in a range of long fibre reinforced thermoplastics. These new materials were processed using a wide range of injection moulding conditions, including such variables as the injection speeds and the preplasticising screw back pressures. This work proposes mechanisms of fibre attrition in the injection moulding process and makes recommendations for the optimisation of fibre lengths in moulded articles. It is shown that alternative polymer matrices in the long glass fibre attrition. It is also demonstrated that this family of long fibre reinforced thermoplastics can be recycled successfully with considerable fibre length advantages over traditional extrusion precompounded short fibre compounds.
Acknowledgements
We would like to thank A. Crooks for experimental contribution to the work, along with K. Linden. In particular, D. Me Dougal for his computing skills and for developing the computer software. Finally, Dr. C. R. Gore and those working in the Verton Group at ICI Chemicals and Polymers Group, Wilton without whom none of this would be possible.
References
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© 1987 Walter de Gruyter GmbH, Berlin/Boston, Germany
Articles in the same Issue
- Contents
- Original contributions
- On the Evaluation of Elastic Moduli of Bead-Filled (Thermoplastic) Systems
- Thermal Analysis of PE Extended Chain Crystal of PE Extended Chain Crystal from Gel Spinning
- Properties of Liquid Crystal Injection Mouldings
- Modification of PVC/CPE Blends with Coupling Agent and its Mechanism
- Mill Processability, Rheology and Structure Differences of Polyacrylate Elastomers
- A Study of Fibre Attrition in the Processing of Long Fibre Reinforced Thermoplastics
- Flow of Rubber Compounds in a Plasticating Unit of a Reciprocating-screw Injection Molding Machine
- Simulation of Tubular Film Extrusion of Polymer Melts
- Study of the Void Structure of PAN Fiber by Small Angle x-ray Scattering and Spline Function
Articles in the same Issue
- Contents
- Original contributions
- On the Evaluation of Elastic Moduli of Bead-Filled (Thermoplastic) Systems
- Thermal Analysis of PE Extended Chain Crystal of PE Extended Chain Crystal from Gel Spinning
- Properties of Liquid Crystal Injection Mouldings
- Modification of PVC/CPE Blends with Coupling Agent and its Mechanism
- Mill Processability, Rheology and Structure Differences of Polyacrylate Elastomers
- A Study of Fibre Attrition in the Processing of Long Fibre Reinforced Thermoplastics
- Flow of Rubber Compounds in a Plasticating Unit of a Reciprocating-screw Injection Molding Machine
- Simulation of Tubular Film Extrusion of Polymer Melts
- Study of the Void Structure of PAN Fiber by Small Angle x-ray Scattering and Spline Function
