Development of Phenolic Fiber/Polyimide Fiber Blended Yarn
In order to make better use of the physical properties of phenolic fiber to develop ther-mal insulation fabric suitable for application,on the basis of its fiber specifications and proper-ties,polyimide fiber is blended with phenolic fiber,and the technological points of its raw mate-rial treatment,blending ratio,process design,carding into sliver,roving and spinning are de-scribed in detail.With the content of phenolic fiber as high as possible,four kinds of 32 tex blended yarns with phenolic fiber content of 40%～70%are spun,and the indexes of blended yarns are tested and analyzed.It is pointed out that in phenolic fiber/polyimide fiber blended yarn,with the increase of phenolic fiber content,the yarn quality indexes such as breaking strength,hairiness index,the value of evenness CV,thousand-meter knot and so on are deterio-rating.The content of phenolic fiber can reach about 70%at the highest level.
NETL
NSTL
万方数据
