Fiber reinforced thermoset composites and methods of making
AssigneeJohns Manville
InventorsMingfu Zhang, Jawed Asrar, Asheber Yohannes, Klaus Friedrich Gleich
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Abstract
Methods of making a fiber-reinforced composite are described. The methods may include applying a sizing composition to a plurality of fibers to make sized fibers, where the sizing composition may include at least one of a curing agent or an accelerator for a resin composition. The sized fibers may be contacted with the resin composition to form a resin-fiber amalgam, where the resin composition includes 50 wt. % or less of a total amount of the curing agent and the accelerator that is also present on the sized fibers. The resin-fiber amalgam may then be cured to form the fiber-reinforced composite.
Claims21
A method of making a fiber-reinforced composite, the method comprising:
- applying a sizing composition to a plurality of fibers to make sized fibers, wherein the sizing composition comprises at least one of a curing agent or an accelerator for a resin composition;
- contacting the sized fibers with the resin composition to form a resin-fiber amalgam, wherein the resin composition includes 50 wt. % or less of a total amount of the curing agent and the accelerator that is also present on the sized fibers;
- and
- curing the resin-fiber amalgam to form the fiber-reinforced composite.
A method of extending a shelf-life of a resin composition used to make a fiber-reinforced composite, the method comprising:
- applying a sizing composition to a plurality of fibers to make sized fibers, wherein the sizing composition comprises at least one of a curing agent or an accelerator for a resin composition;
- contacting the sized fibers with the resin composition to form a resin-fiber amalgam, wherein the resin composition has at least twice the shelf-life of a resin mixture comprising the resin composition mixed with the curing agent;
- and
- curing the resin-fiber amalgam to form the fiber-reinforced composite.
A fiber-reinforced composite comprising:
- sized fibers that have been formed from a plurality of fibers contacted with a sizing composition comprising at least one of a curing agent and an accelerator;
- and
- a resin formed from a resin composition that lacked at least one of the curing agent and the accelerator.
Dependencies are inferred from the claim text.