ROLL MADE OF REINFORCED FIBER-REINFORCED RESIN

摘要

PROBLEM TO BE SOLVED: To provide a roll made of reinforced fiber-reinforced resin having the rigidity as that of a roll made of a steel and to provide the roll made of reinforced fiber-reinforced resin to be durable against a hot and humid condition. SOLUTION: One layer or more o[ reinforced fiber-reinforced resin layers having long fiber reinforced fiber having a tensile elastic modulus of 600-800 GPa and matrix resin being an epoxy resin composition, and one or more layers of reinforced fiber-reinforced resin layers having long fiber reinforced fibers having a tensile elastic modulus of 140-300 GPa and matrix resin being an epoxy resin composition are laminated. A roll made of reinforced fiber- reinforced resin has a weight ratio between long fiber reinforced fiber having the tensile elastic modulus of 600-800 GPa and long fiber reinforced fiber having the tensile elastic modulus of 140-300 GPa is 2/3 to 1/4. The roll made of reinforced fiber-reinforced resin has the coefficient of water absorption of 3. 5 wt.% or less when a cured resin sheet produced by curing an epoxy resin composition is left as it is at temperature 150 deg.C and during 60 hours at a saturated steam pressure.