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US 8,309,644 B1Granted
Methods of treating carbon fibers, fiber-reinforced resins, and methods of making the fiber-reinforced resins
AssigneeGM Global Technology Operations LLC
InventorXiaosong Huang
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Abstract
A method of treating carbon fibers includes introducing a functional group to a carbon fiber surface, and reacting the functional group with a silane to incorporate a silanol moiety to the carbon fiber surface. The functional group is chosen from amine groups, carboxyl groups, hydroxyl groups, and/or carbonyl groups. Also disclosed herein are a fiber-reinforced resin and a method of making the same.
Claims7
A method for treating carbon fibers, comprising:
- introducing a functional group to a carbon fiber surface, the functional group being chosen from the group consisting of amine groups, carboxyl groups, hydroxyl groups, carbonyls, and combinations thereof;
- and
- reacting the functional group with a silane to incorporate a silanol moiety to the carbon fiber surface, the silane having an isocyanate group capable of chemically reacting with the functional group introduced to the carbon fiber surface.
A method of making a fiber-reinforced resin, comprising:
- treating respective surfaces of carbon fibers by incorporating a silanol moiety to the surfaces by:
- introducing a functional group to a carbon fiber surface, the functional group being chosen from the group consisting of amine groups, groups containing oxygen, and combinations thereof;
- and
- reacting the functional group with a silane to incorporate the silanol moiety to the carbon fiber surface, the silane having an isocyanate group capable of chemically reacting with the functional group introduced to the carbon fiber surface;
- reacting the treated carbon fibers with a coupling agent to the form a resin-reinforcing material;
- and
- incorporating the resin-reinforcing material into a resin.
4 more elements
Dependencies are inferred from the claim text.