In-Situ Composite Manufacture Using an Electrostatic Powder Spray Process and Filament Winding

Autor: Mark Duvall, Karthik Ramani, Mark Bays, Frederic Caillat
Rok vydání: 1996
Předmět:
Zdroj: Polymers and Polymer Composites. 4:325-334
ISSN: 1478-2391
0967-3911
DOI: 10.1177/096739119600400505
Popis: This paper details the development of a composite manufacturing process that uses an electrostatic powder spray technique to impregnate a continuous fibre tow with a thermoplastic polymer. The resulting towpreg undergoes intermediate forming to induce further wetout of the fibres by the polymer matrix. An on-line filament winding apparatus then consolidates the towpreg into a finished cylinder. Experimental results detail the effects of key spray coating parameters such as electrostatic corona voltage, powder velocity, and powder mass flowrate. The process demonstrates its effectiveness in coating and consolidating a variety of materials, including E-glass, S-glass, and carbon fibres.
Databáze: OpenAIRE