PURPOSE:To prepare the subject sheet excellent in reinforcing effect by reinforcing a polyolefinic resin contg an adhesive polyolefnic resin with a specific glass fiber mat CONSTITUTION:A polyolefin resin (eg PP) contg an adhesive polyolefinic resin (eg Nisseki N-Polymer P402) is reinforced with a glass fiber mat which contains partially opened glass fiber bundles of a length of 6-100mm intermingled therein

Fiber-reinforced thermoplastic resin sheet and its production

PROBLEM TO BE SOLVED: To provide a prepreg material which can be provided to a structural material by improving adhesiveness between a carbon fiber to be a reinforcing material and a polypropylene phase and improving an reinforcing effect. SOLUTION: In the carbon filament-reinforced polypropylene composite material for the structural material which includes 30 to 150 pts.mass polypropylene (B) and 1 to 150 pts.mass epoxy modified polyolefin (C) to 100 pts.mass carbon filament (A) having ≥7.5 mm length and wherein (B) and (C) satisfy the range of formula (1), interface adhesiveness between the polypropylene and the carbon filament is improved and rigidity and strength are heightened. 1/40 COPYRIGHT: (C)2010,JPO&INPIT

Carbon filament-reinforced polypropylene composite material

PURPOSE:To prepare a reinforced resin sheet having an excellent impact resistance by impregnating a polyolefin resin into a strand mat bonded with a chemical binding agent CONSTITUTION:The title reinforced resin sheet comprises a strand mat having a fiber length of 5 mm or higher and bonded with a chemical binding agent and a polyolefin resin impregnated into the mat Usable fibers for the strand mat include inorg fibers such as glass fiber, carbon fiber, metal fiber, and ceramic fiber and org fibers such as polyvinyl alcohol fiber, polyarylate fiber, and polyamide fiber, the glass fiber being pref The surface of the fiber may be treated with a surface-treating agent (eg a silane coupling agent) to enhance the adhesion with a polyolefin resin The length of the strand less than 5 mm gives a reinforced resin sheet with an inferior impact strength, esp, Izod impact strength

Fujii Kiyonobu

Papers

Reinforced resin sheet