| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for manufacturing a fine ground product effectively from a fiber product comprising a heat-resistant high-functional fiber and/or a PVA fiber, or from a matrix composite comprising the fibers. SOLUTION: The method of manufacturing a fine ground product comprises treating (a) a fiber product comprising a heat-resistant high-functional fiber and/or a polyvinyl alcohol fiber or (b) a matrix composite comprising a heat- resistant high-functional fiber and/or a polyvinyl alcohol fiber with a fluid of a high temperature and a high pressure and cracking the treated product in a medium.</p> |
