METHOD FOR MANUFACTURING COMPOSITE MATERIALS
    100.
    发明申请
    METHOD FOR MANUFACTURING COMPOSITE MATERIALS 审中-公开
    制造复合材料的方法

    公开(公告)号:WO02022336A1

    公开(公告)日:2002-03-21

    申请号:PCT/ES2000/000345

    申请日:2000-09-13

    Abstract: The method involves preparing the prepreg and pressing, hardening and carbonizing said prepreg, which then undergoes heat treatment at a temperature ranging between 70 and 1.100 DEG C. The prepreg is filled with an inert substance comprising a charge and a polymeric ligand in a quantity surpassing the volume of holes of the monolayer tissue, which is calculated by means of formula (1), wherein mn represents the inert substance material, dn represents the inert substance density, a is the length of the prepreg, b is the width of the prepreg, h is the thickness of the prepreg, mpr is the prepreg mass and dfib is the fiber density. The prepreg is then heated at a temperature ranging between 160 DEG C and 200 DEG C while applying simultaneously a pressure ranging between 1 and 5 MPa. The method can be used to manufacture composites with a matrix containing carbon and variable porosity, for instance fuel cell current collectors with electrode aggregates, porous electrochemical electrodes or filtering elements.

    Abstract translation: 该方法包括制备预浸料并压制,硬化和碳化所述预浸料,然后在70至1.100℃的温度范围内进行热处理。预浸料填充有包含电荷和聚合物配体的惰性物质,其数量超过 通过式(1)计算的单层组织孔的体积,其中mn表示惰性物质,dn表示惰性物质密度,a是预浸料坯的长度,b是预浸料坯的宽度 ,h是预浸料坯的厚度,mpr是预浸料坯质量,dfib是纤维密度。 然后将预浸料坯在160℃至200℃之间的温度下加热,同时施加1至5MPa的压力。 该方法可用于制备具有碳和可变孔隙率的基质的复合材料,例如具有电极聚集体的燃料电池集电体,多孔电化学电极或过滤元件。

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