PPTA纤维

Fragrant black silk ribbon long textile fiber raw material introduces which from US Du Pont Company, uses the special craft to process Cheng Rongzhuang the textile fiber, the regrinding original filament, causes its table to deliver in person the fluffy wool plumose, axial arranges many micro original filaments along the textile fiber, forms the very great surface area, has the good adsorbability, may very good with the resin and the padding moist union, the fragrant black silk ribbon textile fiber prominent a little lies in its thermostability, it under 180 degrees Celsius may the long-term use, 200 degrees Celsius 50 hour intensities drop only 10%. When 300 degrees Celsius drops 50%, the initial thermal decomposition temperature reaches as high as 500 degrees Celsius, therefore, includes this kind of PPTA fiber in the friction material product, presents the friction coefficient to be stable, the rate of wear is low, the product density is low, degree of hardness is low, applies the brake the noise to be low, does not damage applies the brake to match and so on the characteristics. The fragrant black silk ribbon textile fiber performance index is approximately as follows: Outward appearanceTextile fiber diameterStapleDensityCarbonization temperature