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    • 7. 发明申请
    • METHOD OF MANUFACTURING A FIBROUS MATERIAL PREIMPREGNATED WITH THERMOPLASTIC POLYMER USING AN AQUEOUS DISPERSION OF POLYMER
    • 使用聚合物的水分散体制备用热塑性聚合物预处理的纤维材料的方法
    • WO2015121584A2
    • 2015-08-20
    • PCT/FR2015050332
    • 2015-02-11
    • ARKEMA FRANCE
    • GAILLARD PATRICEHOCHSTETTER GILLESSAVART THIBAUT
    • B29B15/12B29C70/50B29K101/12
    • B29C70/504B29B15/12B29B15/125B29K2101/12B29K2105/08B29K2507/04B29L2007/007
    • The invention relates to a method of manufacturing a preimpregnated fibrous material comprising a fibrous material of continuous fibres and a thermoplastic polymer matrix, characterized in that said preimpregnated fibrous material is produced as a unidirectional single tape or a plurality of unidirectional parallel tapes and in that said method comprises the following steps: i) a step of impregnating said fibrous material while it is in the form of several parallel rovings, said impregnation step comprising: ia) immersing said fibrous material in a bath containing an aqueous dispersion (22) of said thermoplastic polymer, said immersion being followed by ib) a drying (25) of said fibrous material, then ii) a step of shaping said parallel rovings of said fibrous material impregnated according to step i) by calendering using at least one heated calender (51, 52, 53) into the form of a plurality of unidirectional parallel tapes using said heated calender comprising a plurality of calendering grooves (73), preferably up to 200 calendering grooves, according to the number of said tapes and with a pressure and/or separation between the rolls (71, 75) of said calender regulated by a control system.
    • 本发明涉及一种制造预浸渍纤维材料的方法,其包括连续纤维和热塑性聚合物基质的纤维材料,其特征在于,所述预浸渍纤维材料被制成单向单条带或多个单向平行带,并且所述 方法包括以下步骤:i)当所述纤维材料呈几个平行粗纱的形式时浸渍所述纤维材料的步骤,所述浸渍步骤包括:ia)将所述纤维材料浸入含有所述热塑性塑料的水分散体(22)的浴中 聚合物,所述浸渍之后是ib)所述纤维材料的干燥(25),然后ii)根据步骤i)浸渍的所述纤维材料的平行粗纱的成型步骤是通过使用至少一个加热的压延机(51, 52,53)形成多个单向平行带的形式,使用包括多个压延机的所述加热压延机 根据所述带的数量以及由控制系统调节的所述压延机的辊(71,75)之间的压力和/或间隔,优选地多达200个压延槽。