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Impregnation of Compressible Fiber Mats with a Thermoplastic Resin. Part II: Experiments

Journal of composite materials, 2001-07, Vol.35 (13), p.1174-1200 [Peer Reviewed Journal]

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Title:
Impregnation of Compressible Fiber Mats with a Thermoplastic Resin. Part II: Experiments
Author: Michaud, V ; TAPGrnqvist, R ; MAYnson, J-A E
Is Part Of: Journal of composite materials, 2001-07, Vol.35 (13), p.1174-1200
Description: The impregnation of compressible glass fiber mats by a thermoplastic resin in the transverse direction is investigated with application to the Glass Mat reinforced Thermoplastics (GMT) lamination process in a double belt press. Amodel proposed in Part I to simulate the kinetics of impregnation and the evolution of the fiber volume fraction profile as the resin front progresses across the fiber mat, as well as after macro-impregnation is complete, is further developed to include micro-impregnation effects. The predictions are compared with experimental results obtained using model systems such as polyethylene glycol and glass fiber mats, as well as an industrially relevant system consisting of polypropylene and glass fiber mats used in the production of GMT blanks. It is shown that significant compression of the fiber mat may occur during impregnation, with subsequent relaxation on a much longer time-scale. Also, fiber bundle impregnation generally occurs after macro-impregnation is complete.
Language: English
Identifier: ISSN: 0021-9983
EISSN: 1530-793X
DOI: 10.1106/MLLN-4EF9-4KFU-XCWL
Source: Alma/SFX Local Collection

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