专利检索 ap:("Hisashi Tada" OR "Masahiro Saruta" OR "Takashi Murata" OR "Akira Agata" OR "Setuo Kashiyama") AND inv:"Setuo Kashiyama" 第 1 页

1.

发明授权
Carbon fiber for composite material 失效
标题翻译：复合材料用碳纤维

公开(公告)号：US4832932A

公开(公告)日：1989-05-23

申请号：US93567

申请日：1987-08-07

申请人： Hisashi Tada , Masahiro Saruta , Takashi Murata , Akira Agata , Setuo Kashiyama

发明人： Hisashi Tada , Masahiro Saruta , Takashi Murata , Akira Agata , Setuo Kashiyama

IPC分类号： C08K7/06 , D01F11/12 , D06M10/00 , D06M15/55

CPC分类号： D01F11/122 , C08K7/06

摘要： Oxidizing treatment of carbon fibers under specific conditions provides carbon fibers having oxygen concentration (O.sub.1S /C.sub.1S atom number ratio) in the surface part of the carbon fibers of 0.05 to 0.30 as measured by X-ray photoelectron spectroscopy, coefficients of water-extractable fraction of up to 2.0, and coefficients of tow spread of at least 1.times.10.sup.-3. These carbon fibers are excellent in adhesion to various matrix resins and when mixed as reinforcements with matrix resins, provide composite materials superior especially in impact resistance. The thus obtained composite materials are useful for aircraft, automobiles, and general industrial materials.