IMPROVED WEAR POLYTETRAFLUOROETHYLENE(PTFE) FIBER AND METHOD OF MAKING SAME (PTFE)
摘要
A dispersion spun fluoropolymer fiber prepared from non-melt-processible polytetrafluoroethylene particles and aluminum oxide particles. The concentration of Al2O3 in the aqueous dispersion may range from between about 0.1% to about 5%, with specific concentration of 0.1%, 1.0. The aqueous dispersion is mixed with an aqueous matrix polymer solution containing a matrix polymer and then extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure which carries ionic species. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce the polytetrafluoroethylene particles and the Al2O3 particles into a blended fiber. The resulting, blended fluoropolymer fiber exhibits improved properties relative to 100% dispersion spun polytetrafluoroethylene fibers.
申请公布号
HK1217740(A1)
申请公布日期
2017.01.20
申请号
HK20160105664
申请日期
2016.05.17
申请人
TORAY FLUOROFIBERS(AMERICA) INC.
发明人
MOON,CHESTER, DARRYL CD;NELSON, ARTHUR, RUSSELL AR;GULDSTRAND, TREVOR T;HUTTO, MATT M