| abstract |
The present invention provides the carbon fibre reinforced composite tubular body with excellent cylinder bending strength and uses its manufactured golf ball bar body.Following carbon fibre reinforced composite tubular bodies are provided, it is by following straight layers and following oblique layer stackups and is solidified to form, the straight layer contains thermosetting resin S, in straight layer, the carbon fiber S that coating sizing agent S is formed is arranged in parallel on the direction for the pipe axis relative to tubular body for 20 °~+20 °, the oblique layer contains thermosetting resin B, in oblique layer, the carbon fiber B that coating sizing agent B is formed is arranged in parallel on the direction for the pipe axis relative to tubular body for+25 °~+65 °, wherein, the interlaminar shear strength for forming the carbon fibre reinforced composite of oblique layer is more than 110MPa, the elasticity modulus of the solidfied material of thermosetting resin S is more than 4.0GPa. |