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    • 13. 发明授权
    • Prepregs comprising a reinforcing fiber layer, a knitted fabric of
thermoplastic fibers and a matrix resin
    • 包含增强纤维层,热塑性纤维的针织物和基质树脂的预浸料
    • US5543212A
    • 1996-08-06
    • US339599
    • 1994-11-14
    • Hiroki OosedoNobuyuki Odagiri
    • Hiroki OosedoNobuyuki Odagiri
    • B29B11/16B29C70/08B32B5/12B32B5/14B32B27/04C08J5/04C08J5/24D03D3/00B32B5/02B32B7/00
    • C08J5/24B29C70/083B32B5/12C08J5/047B29K2101/10B29K2105/08B29K2105/0836B29K2301/12Y10S428/902Y10T442/494
    • The present invention relating to prepegs has the following constitution to achieve the above object. That is, a prepreg, comprising long reinforcing fibers [A], matrix resin [B] and a knitted fabric made from thermoplastic resin fibers [C], with the component [C] distributed near either or both of the surface layers. Moreover, the present invention relating to processes for production of prepregs has either of the following constitution to achieve the above object. That is, a process for preparing a prepreg, comprising the steps of impregnating long reinforcing fibers [A] with matrix resin [B], and bonding a knitted fabric made from thermoplastic resin fibers [C] onto one side or both sides of the intermediate product, or a process for preparing a prepreg, comprising the step of bonding matrix resin [B] formed as a film, a knitted fabric made from thermoplastic resin fibers [C] and long reinforcing fibers [A]. The prepregs of the present invention, therefore, are tacky and drapable, and the composite materials obtained by heating and forming the prepregs are high in heat resistance, and very high in impact resistance and inter-layer toughness. Furthermore, the prepregs are easy to produce and high in their latitude in availability of materials, this being industrially significant.
    • 涉及预制物的本发明具有以下结构以实现上述目的。 也就是说,包含长增强纤维[A],基质树脂[B]和由热塑性树脂纤维[C]制成的针织物的预浸料,其中组分[C]分布在表面层的一个或两个附近。 此外,与制造预浸料坯的方法相关的本发明具有以下结构以实现上述目的。 也就是说,制备预浸料的方法包括以下步骤:用基质树脂[B]浸渍长增强纤维[A],并将由热塑性树脂纤维[C]制成的针织物粘合到中间体的一侧或两侧 产品或制备预浸料的方法,包括将由热塑性树脂纤维[C]和长增强纤维[A]制成的针织物与作为膜形成的基质树脂[B]接合的步骤。 因此,本发明的预浸料具有粘性和悬垂性,通过加热和形成预浸料获得的复合材料的耐热性高,耐冲击性和层间韧性非常高。 此外,预浸料容易生产,在材料可用性方面的纬度高,这在工业上是显着的。