Cornerstone Research Group, Inc.

Systima Technologies, Inc.

Jalapeno Holdings, LLC

Comerstone Research Group, Inc.

Michael D Rauscher

Richard D Hreha

Thomas J Barnell

Michael Jeffrey Fisher

Gary N Cupp

Joel P Brubaker

Kristopher K Aber

Brian E Henslee

Frank M Zalar

Benjamin Dietsch

Ryan D Snyder

Kory K Evanson

Jeffrey R Josken

Sean P Garrigan

Emily A Frake

Tat Hung Tong

Kristin M Cable

David Martin Nickerson

Rick D Stienecker

Methods of producing a fiber reinforced polymer matrix composite and a composite thermal protection system formed from the same. The method includes forming a polymerized fiber reinforced composite which including a cured thermoset polymer matrix and at least one reinforcement material. The method further includes treating at least a portion of a first face of the polymerized fiber reinforced composite with electromagnetic radiation to raise the temperature of the portion of the first face to at least 800° C. to produce a surface layer of graphitized carbon and a bulk polymerized fiber reinforced composite representing the untreated polymerized fiber reinforced composite. Further, the surface layer of graphitized carbon has an electrical conductivity of 0.25 S mto 2.5 S mwhere the electrical conductivity and a thermal conductivity are both greater than those of the bulk polymerized reinforced composite.

Method of making carbonized composites

Methods of producing a carbon matrix composite are provided which include preparing a carbon matrix composite precursor comprising at least one carbon-based reinforcement material and a cured thermoset polymer matrix comprising a chemical composition in accordance with Formula I where n and m are integers, at least one of Ror Rcomprises an aromatic moiety, and X is selected from the group consisting of CH, NH, O, S, SO, and combinations thereof. The methods further include heating the carbon matrix composite precursor in air to a first processing temperature of between 300&#xb0; C. and 500&#xb0; C. to form a carbon matrix composite intermediate, and heating the carbon matrix composite intermediate in nitrogen to a second processing temperature of between 900&#xb0; C. to 1650&#xb0; C. and holding at the second processing temperature for at least 1 hour in an inert gas environment to form the carbon matrix composite.

Method of making carbon matrix composite from high temperature polymer matrix fiber-reinforced composites

A method of making a fiber reinforced energetic composite is provided. The method includes providing a mold or mandrel defining a shape for the fiber reinforced energetic composite, providing an impregnated fiber layup over the mold or mandrel, and curing the impregnated fiber layup. The impregnated fiber layup includes a fiber layup and polymer resin, the fiber layup formed from a plurality of reinforcing fiber layers and an energetic polymer nanocomposite disposed adjacent one or more of the reinforcing fiber layers with the polymer resin impregnated within the reinforcing fiber layers. The energetic polymer nanocomposite includes core-shell nanoparticles entrained in a thermoplastic polymer matrix where the core-shell nanoparticles include a core made of metal and at least one shell layer made of metal oxide disposed on the core or a core made of metal oxide and at least one shell layer made of metal disposed on the core.

Method of making a fiber reinforced energetic composite

Chemical compositions are provided having a structure in accordance with with the R group having a structure in accordance with Rincludes an alkyl group, Rincludes an alkylene group, and Rincludes an alkylene group in accordance with (CH)with x&#x2265;2, and Rincludes the structure of Formula (II) or Formula (III). Rincludes a meta-substituted or para-substituted phenyl moiety. Additionally, elastomers produced by cross-linking the chemical composition of Formula (I) are provided.

Bis-Schiff-base thermosetting elastomers

A fiber reinforced energetic composite is provided. The fiber reinforced energetic composite includes reinforcing fiber embedded in a cured polymer matrix and energetic polymer nanocomposite disposed in the reinforcing fiber. The energetic polymer nanocomposite including core-shell nanoparticles entrained in a polymer matrix. The core-shell nanoparticles include a core made of a metal and at least one shell layer made of a metal oxide disposed on the core or a core made a metal oxide and at least one shell layer made of a metal disposed on the core. The method of making a fiber reinforced energetic composite is also provided. Further, a composite container made of fiber reinforced energetic composite is further provided.

Fiber reinforced energetic composite

Chemical compositions are provided having a structure in accordance with with the R group having a structure in accordance with Rincludes an alkyl group, Rincludes an alkylene group, and Rincludes an alkylene group in accordance with (CH), with x&#x2265;2, and Rincludes the structure of Formula (II) or Formula (III). Rincludes a meta-substituted or para-substituted phenyl moiety. Additionally, elastomers produced by cross-linking the chemical composition of Formula (I) are provided.

Embodiments of a hybrid fiber layup used to form a fiber-reinforced polymeric composite, and a fiber-reinforced polymeric composite produced therefrom are disclosed. The hybrid fiber layup comprises one or more dry fiber strips and one or more prepreg fiber strips arranged side by side within each layer, wherein the prepreg fiber strips comprise fiber material impregnated with polymer resin and the dry fiber strips comprise fiber material without impregnated polymer resin.

Hybrid fiber layup and fiber-reinforced polymeric composites produced therefrom

A composite having a substrate and a plurality of core-shell nanoparticles. The substrate has microporosity, nanoporosity, or free volume and is a polymer matrix, a metal-organic framework, a micro-porous structure, or a nano-porous structure. The plurality of core-shell nanoparticles each has a core and at least one shell layer. The core is made from a decomposed product of a first precursor disposed in the microporosity, nanoporosity, or free volume of the substrate. The at least one shell layer is made from a decomposed product of a second precursor and is disposed on the core.

Polymer composite comprising metal based nanoparticles in a polymer matrix

Method embodiments for producing a fiber-reinforced epoxy composite comprise providing a mold defining a shape for a composite, applying a fiber reinforcement over the mold, covering the mold and fiber reinforcement thereon in a vacuum enclosure, performing a vacuum on the vacuum enclosure to produce a pressure gradient, insulating at least a portion of the vacuum enclosure with thermal insulation, infusing the fiber reinforcement with a reactive mixture of uncured epoxy resin and curing agent under vacuum conditions, wherein the reactive mixture of uncured epoxy resin and curing agent generates exothermic heat, and producing the fiber-reinforced epoxy composite having a glass transition temperature of at least about 100&#xb0; C. by curing the fiber reinforcement infused with the reactive mixture of uncured epoxy resin and curing agent by utilizing the exothermically generated heat, wherein the curing is conducted inside the thermally insulated vacuum enclosure without utilization of an external heat source or an external radiation source.

Growing community of inventors

Beavercreek, OH, United States of America

Michael D Rauscher