EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, YARN PREPREG, AND PROCESS AND APPARATUS FOR PREPARING THE SAME |
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| 申请号 | EP97904610 | 申请日 | 1997-02-21 | 公开(公告)号 | EP0825222A4 | 公开(公告)日 | 2000-09-13 |
| 申请人 | TORAY INDUSTRIES; | 发明人 | KISHI HAJIME; TOKUNOH MASAZUMI; KYONO TETSUYUKI; NOMA FUMIAKI; MINAKUCHI TOYOKAZU; YAMANE SHOJI; | ||||
| 摘要 | An epoxy resin composition suitable as a matrix resin for fiber reinforcement; and a yarn prepreg which has an excellent high-order processability by virtue of suitable unwindability and drapeability and a high degree of development of tensile strength and reinforced fiber strength after the curing of the epoxy resin. The yarn prepreg is characterized in that the weight content Wf (%) of fiber bundles, the number F of filaments in the fiber bundles, and the prepreg width d (mm) satisfy the following relationships: (1) 50 ≤ Wf ≤ 80; (2) 20000 ≤ F ≤ 100000; (3) F/8000 ≤ d ≤ F/2400. The epoxy resin composition comprises the following components: [A] an epoxy resin blend having an epoxy equivalent of 210 to 370, comprising a mono- or difunctional epoxy resin and a tri- or higher polyfunctional epoxy resin in respective particular amounts; [B] fine particles which contain a rubber component and are insoluble in the epoxy resins; and [C] a curing agent. | ||||||
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