【作者】 杨士超； 段跃新； 肇研； 孙静；

【Author】 Yang Shichao,Duan Yuexin,Zhao Yan,Sun Jing ( Beijing University of Aeronautics and Astronautics,Beijing 100191)

【机构】 北京航空航天大学材料科学与工程学院；

【摘要】 本文采用单向流动法对含胶预成型体及干粉定型剂预成型体进行了渗透率的测试。分别研究了含胶量、干粉定型剂用量及模具温度的影响。结果表明,含胶预成型体渗透率受含胶量的影响较大,存在较低值;干粉定型预成型体渗透率随定型剂含量的增加明显减小;而两种定型方法下制备的预成型体表观渗透率均随模具温度的升高而增大。更多还原

【Abstract】 An experimental investigation was carried out to deal with the permeability of preform with resin or tackifiers by applying the unidirectional saturated flow method. Several factors which affect the permeability were studied,including the rate of resin in preform,the rate of tackifiers,and the molding temperature. The results indicate that the rate of resin in preform influences the permeability remarkably. And there is a obvious fall in the permeability of perform with the increase of the tackifiers. In addition,the apparent permeability of preform with resin or tackifiers grow up with a higher molding temperature.更多还原