admin管理员组文章数量:1530808
2024年3月22日发(作者：)
专利内容由知识产权出版社提供
专利名称：SURFACE MODIFIED POROUS EXPANDED
POLYTETRAFLUOROETHYLENE AND
PROCESS FOR MAKING
发明人：ZUKOWSKI, Stanislaw, L.
申请号：EP92914071.0
申请日：19920608
公开号：EP0646151A1
公开日：19950405
摘要：Porous expanded polytetrafluoroethylene material having a microstructure of
nodes interconnected by fibrils wherein a surface of the material has been modified to
have increased hydrophobicity as indicated by having a water droplet roll-off angle of
less than about 10 degrees in comparison to a typical roll-off angle of greater than
about 12 degrees for the unmodified material. Under magnification, the surface
morphology may be indistinguishable from that of the unmodified precursor material.
The modification is preferably done by exposing the surface to radio frequency gas
plasma discharge with a reactive etching gas for a lengthy amount of time such as about
ten minutes. If surface etching is continued beyond a time adequate to produce the
highly hydrophobic behavior, then the surface morphology includes the appearance of
broken fibrils. Still further treatment results in complete removal of fibrils from the
surface so that under magnification the surface has the appearance of freestanding node
portions not interconnected by fibrils but rather having open valleys disposed between
the freestanding node portions.
申请人：W.L. GORE & ASSOCIATES, INC.
地址：551 Paper Mill Road, P.O. Box 9206 Newark, Delaware 19714-9206 US
国籍：US
代理机构：McCallum, William Potter, et al
更多信息请下载全文后查看
版权声明：本文标题：SURFACE MODIFIED POROUS EXPANDED POLYTETRAFLUOROET 内容由热心网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：https://m.elefans.com/dongtai/1711113258a300354.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。
发表评论