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XU Bin, LI Tiehu. STUDY ON THE HIGH PERFORMANCE IMPREGNATING PITCH USED IN C/C COMPOSITE[J]. Acta Materiae Compositae Sinica, 2003, 20(2): 71-75.
Citation: XU Bin, LI Tiehu. STUDY ON THE HIGH PERFORMANCE IMPREGNATING PITCH USED IN C/C COMPOSITE[J]. Acta Materiae Compositae Sinica, 2003, 20(2): 71-75.
shu

STUDY ON THE HIGH PERFORMANCE IMPREGNATING PITCH USED IN C/C COMPOSITE

  • 1.

    Institute of Materials Science and Engineering,Northwestern Polytechnical University, Xi'an 710072,China;

  • 2.

    College of Chemical Engineering,Resources and Environment,Wuhan University of Science and Technology,Wuhan 430081

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  • Received Date: March 28, 2002
  • Revised Date: July 04, 2002
    Abstract
  • According to the character of primary QI impurities composed of carbonaceous particles with the size of several micrometers, the coal tar was purified by the solvent flocculation method. Using the purified tar as raw material, high performance impregnating pitch with low QI content was prepared. The rheologic behavior and permeability of high performance impregnating pitch were comparatively studied. It has been confirmed that the high performance impregnating pitch modifies greatly impregnation efficiency. The mechanical characteristics of C/C composite have been evidently improved.
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