| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reinforcement fiber prepreg for a robot fork, which is light in weight, has high strength, and is inexpensive. <P>SOLUTION: The prepreg for a robot fork is a sheet-like prepreg formed by containing reinforcement fiber and thermosetting resin. The reinforcement fiber is carbon fiber having a tensile elastic modulus 350 GPa or higher, and fineness 200-1,000 tex, and is oriented in one direction so that a carbon fiber mass per unit area becomes 250-450 g/m<SP POS="POST">2</SP>. Mass content of the thermosetting resin in the sheet-like prepreg is 15-30 mass%. A sum of lengths of impregnated parts of the sheet-like prepreg is 5% or more of a total length of the sheet-like prepreg. A release paper is arranged on at least one surface of the sheet-like prepreg. Peel resistance of the sheet-like prepreg and the release paper is 150-6,000 mN/25 mm. Composite compressive strength is 700 MPa or higher. <P>COPYRIGHT: (C)2013,JPO&INPIT |
