FIELD: manufacturing technology.
SUBSTANCE: invention relates to a method for impregnating a fibrous material with a curable resin to produce a prepreg. Technical result is achieved by a method of impregnating a fibrous material with a curable resin to obtain a prepreg, which includes the preparation of a material in the form of a continuous web comprising a layer of fibrous material between two curable resin films, moving the web material along a travel path and through a moving pressure nip formed between a moving pressure roller and a moving supporting surface. Moving pressure roller and moving supporting surface travel at different velocities relative to each other resulting in a relative velocity Vrel between the web material and the pressure nip. Moving pressure nip travels in the same direction as the web material while applying sufficient pressure to compress the web material and to affect impregnation of the fibrous material with the curable resin.
EFFECT: faster production of prepreg, without detriment to the control of the level of impregnation.
22 cl, 9 dwg, 1 ex
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Authors
Dates
2019-02-21—Published
2014-10-27—Filed