Method of manufacture of composite materials consisting of carbon fibers and resin and materials manufactured in accordance with said method

Process for the manufacture of composite materials of carbon fibers and resin comprising the steps of radical grafting a polymer on carbon fibers by covalent bond, obtaining the bond by creation of free radicals on the polymer by an oxydo-reducing system and transfer reaction of the radicals on the sites of the carbon fibers and then incorporating the grafted fibers in a resin compatible with the polymer.

Process for the manufacture of composite materials of carbon fibers and resins comprising the steps of radical grafting a polymer on carbon fibers by covalent bond, obtaining the bond by creation of free radicals on the polymer by radiation and transfer reaction of the radicals on the sites of the carbon fibers and then incorporating the grafted fibers in a resin compatible with the polymer.

A process for the manufacture of a composite material of carbon fibers and resins comprising the steps of grafting a polymer on carbon fibers by an ionic bond selected from the group consisting of hydrogen bond, dipoledipole bond and saline bonds, obtaining the bond by first oxidizing the carbon fibers, placing the thus treated fibers in contact with the polymer and then incorporating the grafted fibers in a resin compatible with the polymer.

Process for the manufacture of a composite material of carbon fibers and resins comprising the steps of grafting a polymer on the carbon fibers by an ionic bond of the hydrogen bond type, obtaining the bond by first oxidizing the carbon fibers and then placing the thus treated fibers in contact with the polymer and then incorporating the grafted fibers in a resin compatible with the polymer.

Process for the manufacture of composite materials of carbon fibers and resin comprising the steps of grafting a polymer on the carbon fibers by an ionic bond of the dipoledipole type, obtaining the bond by first oxidizing the carbon fibers, then salifying the superficial carboxylic functions thus obtained on the fibers, placing the fibers in contact with a polymer having partially salified carboxylic functions and then incorporating the grafted fibers in a resin compatible with the polymer.

Process for the manufacture of composite materials of carbon fibers and resins comprising the steps of ionic grafting a polymer on the carbon fibers by a saline type bond, obtaining the bond by first oxidizing the carbon fibers, then salifying the thus treated fibers and the salifiable function of the polymer in the presence of a divalent or trivalent cation, and then incorporating the grafted fibers in a resin compatible with the polymer.

Process for the manufacture of composite materials of carbon fibers and resins comprising the steps of ionic grafting a polymer on the carbon fibers by a bond of the saline type, obtaining the bond by first oxidizing the carbon fibers, then salifying the superficial carboxylic functions thus created on the carbon fibers in the presence of a divalent or trivalent cation, and contacting the thus treated fibers with the polymer having salifiable functions and then incorporating the grafted fibers in a resin compatible with the polymer.

A process for the manufacture of a composite material of carbon fibers and resins comprising the steps of grafting a polymer on the carbon fibers by an ionic bond of the hydrogen bond type, obtaining the bond by first oxidizing the carbon fibers and then placing the thus treated fibers in contact with the partially hydrolyzed polymer and then incorporating the grafted fibers in a resin compatible with the polymer.