Self-Repairing, Reinforced Matrix Materials
First Claim
1. An article comprising a cured composite matrix material having a modifying agent in at least one hollow release vessel, wherein the modifying agent is capable of beneficially modifying the composite matrix material in response to a stimulus, wherein the cured matrix is a coating comprising a self repairing material that has waterproofing and coating properties.
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Abstract
Self-repairing, fiber reinforced matrix materials include a matrix material including inorganic as well as organic matrices. Disposed within the matrix are hollow fibers having a selectively releasable modifying agent contained therein. The hollow fibers may be inorganic or organic and of any desired length, wall thickness or cross-sectional configuration. The modifying agent is selected from materials capable of beneficially modifying the matrix fiber composite after curing. The modifying agents are selectively released into the surrounding matrix in use in response to a predetermined stimulus be it internal or externally applied. The hollow fibers may be closed off or even coated to provide a way to keep the modifying agent in the fibers until the appropriate time for selective release occurs. Self-repair, smart fiber matrix composite materials capable of repairing microcracks, releasing corrosion inhibitors or permeability modifiers are described as preferred embodiments in concrete and polymer based shaped articles.
40 Citations
25 Claims
- 1. An article comprising a cured composite matrix material having a modifying agent in at least one hollow release vessel, wherein the modifying agent is capable of beneficially modifying the composite matrix material in response to a stimulus, wherein the cured matrix is a coating comprising a self repairing material that has waterproofing and coating properties.
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8. The article of claim 8 wherein the metal is at least one of aluminum, steel, iron, titanium, lead, copper, bronze, phosphor bronze, brass and other alloys.
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17. An article comprising a cured composite matrix material having a modifying agent in release vessels therein, wherein the modifying agent is capable of beneficially modifying the composite matrix material in response to a stimulus, wherein the cured matrix is a coating and the coating is self repairing in water.
- 18. A composition comprising a plurality of vessels comprising modifying agents of polysiloxane therein and a plurality of vessels comprising a reactor for polysiloxane therein.
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24. A composition comprising a plurality of vessels in a matrix comprising modifying agents of an epoxy precursor and a crosslinker.
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25. The composition of 24 wherein the crosslinker is an amine.
Specification