FIBER-CONTAINING PREPREGS AND METHODS AND SYSTEMS OF MAKING

摘要

Methods of making a fiber-containing prepregs may include drawing unsized fibers from a batch of molten glass. The method may also include applying a sizing composition to the unsized fibers to form a plurality of sized fibers, where the sizing composition includes a first polymerization agent for polymerizing caprolactam. The method may further include weaving the plurality of sized fibers into a fabric. Another step may include melting a reactive resin composition to form a melted reactive resin composition, where the reactive resin composition may include caprolactam. The melted reactive resin composition may be applied to the fabric. The method may further include heating the fabric and the melted reactive resin composition to a polymerization temperature, where the caprolactam polymerizes to form a fiber-resin amalgam including a polyamide. Another step may be to form the fiber-resin amalgam into the fiber-containing prepreg.

主权项

1. A method of making a fiber-containing prepreg, the method comprising:
drawing unsized fibers from a batch of molten glass; applying a sizing composition to the unsized fibers to form a plurality of sized fibers, wherein:
the sizing composition comprises a first polymerization agent for polymerizing caprolactam, andthe first polymerization agent comprises a first polymerization initiator; weaving the plurality of sized fibers into a fabric; melting a reactive resin composition to form a melted reactive resin composition, wherein the reactive resin composition comprises caprolactam, wherein:
the reactive resin composition comprises a second polymerization agent for polymerizing caprolactam, andthe second polymerization agent comprises a second polymerization initiator; applying the melted reactive resin composition to the fabric; heating the fabric and the melted reactive resin composition to a polymerization temperature, wherein the caprolactam polymerizes to form a fiber-resin amalgam comprising a polyamide; and forming the fiber-resin amalgam into the fiber-containing prepreg.