Pultrusion Process Development of a Graphite Reinforced Polyetherimide Thermoplastic Composite

Wilson, Maywood L.; Buckley, John D.; Dickerson, G. E.; Johnson, Gary S.; Taylor, Edward C.; Covington, Edward W.

doi:10.1177/089270578900200305

Cited by 12 publications

(1 citation statement)

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“…Furthermore, their considerable energy absorption capability enables their application as crash elements for automotive applications [5]. Recent developments of impregnation technology for thermoplastic matrices have generated considerable interest in the possibility of thermoplastic pultrusion [6,7]. Successful works have however only been performed for simple cross sections, and at pultrusion speeds not dramatically exceeding those known for commercial thermoset pultrusion (0.6-1.2 m/min).…”

Section: Introductionmentioning

confidence: 99%

Pultrusion of Thermoplastic Composites - New Developments and Modelling Studies

Bechtold

Wiedmer

Friedrich

2002

Journal of Thermoplastic Composite Materials

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Objective of this study is to present new developments in thermo-plastic pultrusion (a pullbraiding process combined with a contact preheating system, and a new online forming method for pultruded profiles) and a new approach for modelling of the preheating process. After modelling of the preheating process of commingled glass fibre/polypropylene yarn, the preheating of a thermoplastic pultrusion line to produce profiles with unidirectional reinforcement in axial direction was modified by adding contact heating pins. Compared to the convective heating used before, profiles with higher qualities could be produced at three times higher processing speeds. First trials of a combined braiding and pultrusion process, also with contact preheating, led to promising results. Furthermore, a process to post-form pultruded profiles immediately after leaving the heated pultrusion die was developed, leading to profiles with a forming radiusof 10 cm.

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Section: Introductionmentioning

confidence: 99%

Pultrusion of Thermoplastic Composites - New Developments and Modelling Studies

Bechtold

Wiedmer

Friedrich

2002

Journal of Thermoplastic Composite Materials

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Pultrusion

Vázquez¹,

Escobar²

2012

Wiley Encyclopedia of Composites

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This article involves the principal aspects of the pultrusion of both thermosetting and thermoplastic polymer matrix. After a short introduction, in the first part, the pultrusion machine for thermosetting polymer matrix is described, followed by the modeling of processing parameters. The influence of pulling velocity, fiber type, residual thermal stress, additives, and fillers is studied. Also, the importance of controlling the temperature profile in order to allow for proper gelation and curing of the thermosetting resin is emphasized. The second part describes the pultrusion of thermoplastic polymer matrix with the same structure of the first one. At the end, examples of structures pultruded using cement and foams as matrix are included.

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A modeling approach to thermoplastic pultrusion. I: Formulation of models

Åström

Pipes

1993

Polymer Composites

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A fundamental understanding of the effects of processing parameters and die geometry in a pultrusion process requires a mathematical model in order to minimize the number of necessary experiments. Previous investigators have suggested a variety of models for thermoset pultrusion, while comparatively little effort has been spent modeling its less well understood thermoplastic counterpart. Herein, models to describe temperature and pressure distributions within a thermoplastic composite as it travels through the pultrusion line are presented. The temperature model considers heat transfer in an infinite slab with either prescribed boundary temperature, or prescribed heat flux from the surfaces. The pressure model is based upon matrix flow relative to the fibers and incorporates a non‐Newtonian matrix viscous, compaction, and friction resistance, is also presented. The models are evaluated studying and ideal pultrusion process for manufacturing of unidirectional carbon‐fiber‐reinforced polyether ehterketone composites.

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Pultrusion Process Development of a Graphite Reinforced Polyetherimide Thermoplastic Composite

Cited by 12 publications

References 1 publication

Pultrusion of Thermoplastic Composites - New Developments and Modelling Studies

Pultrusion of Thermoplastic Composites - New Developments and Modelling Studies

Pultrusion

A modeling approach to thermoplastic pultrusion. I: Formulation of models

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