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    • 6. 发明公开
    • Pultrusion with cure by ultraviolet radiation
    • Pultrusionsverfahren mitAushärtendurch紫外线Strahlung。
    • EP0290849A2
    • 1988-11-17
    • EP88106588.2
    • 1988-04-25
    • TOYO CLOTH CO., LTD.Toyo Boseki Kabushiki Kaisha
    • Kanzaki, Takashi
    • B29C35/10B29C67/14
    • B29C35/10B29C70/521B29C70/526B29C2035/0827B29K2105/101
    • Pultrusion with cure by ultraviolet (UV) radiation, art for manufacturing FRP wherein a continuous reinforcing material, most commonly, glass roving is first impregnated with a curable liquid resin and pulled through a UV transmittent die, for instance, glass, having a desired cross section and a sufficient length to effect the cure and, during passage through such a die, the continuous resinous material or FRP material is subjected to exposure to UV radiation to complete the pultrusion. The present improvement lies in prevention of sticking trend of the uncured resinous material onto the internal wall of the die, whereby pultruded products having good regeneration of a die section were hardly attained conventionally. the present invention proposes elimination of the sticking trend by coating on internal wall of the glass die, further proposes use of a pipe die having a short length which is insufficient to complete the cure reactions, and then, after passing through such a die, the FRP material to be cured is introduced into a medium liquid of UV transmittent type, for instance, water, so as to have static liquid pressure and therein the material is exposed to UV radiation.
    • 通过紫外线(UV)辐射固化的拉挤成型,其中连续增强材料,最常见的玻璃粗纱首先用可固化液体树脂浸渍并拉过具有所需交叉的UV透射模具例如玻璃, 并且具有足够的长度以实现固化,并且在通过这种模具期间,将连续的树脂材料或FRP材料暴露于UV辐射以完成拉挤成型。 目前的改进在于防止未固化的树脂材料在模具的内壁上的粘附趋势,由此难以实现具有良好的模具再生的拉挤成型制品。 本发明提出通过在玻璃模具的内壁上涂布来消除粘附的趋势,进一步提出使用长度不足以完成固化反应的管模,然后在通过这种模具之后, 要固化的FRP材料被引入UV透射型的介质液体,例如水中,以便具有静态液体压力,并且其中材料暴露于UV辐射。