Metadata Updated: November 12, 2020

Through the proposed STTR program, NanoSonic and Virginia Tech will create an innovative low viscosity, high Tg copolymer injection repair material and methodology that enables fiber reinforced composite repair within a short time frame in areas with limited user access. The proposed injection repair material will consist of fluidic HybridSil poly(siloxane imide) resins that are molecularly engineered to 1) rapidly infiltrate microcracks within damaged composites areas, 2) covalently bond to functionalized composite fibers for exceptional adhesion and mechanical restoration, and 3) cure on the order of minutes through moisture sensitive moieties. NanoSonic?s composite repair material will contain novel, phase separated morphologies that provide highly efficient load transfer pathways within damaged composite areas, high temperature durability (> 450 oC), and self-leveling properties during curing to provide optimal aerodynamic efficiency. The major phase of the repairing material will consist of a high Tg (> 250 C) polyimide matrix while the minor phase will consist of low Tg (<-100 oC), microphase separated polysiloxanes. A facile three step repair process will be established that involves 1) the priming of composite surface with reactive functional groups through a surface wipe down, 2) defect infusion with reactive nanocomposite resin, and 3) a moisture induced crosslinking reaction. In support of a rapid Phase III transition, NanoSonic?s HybridSil polymeric resins have a current production capacity of 8,000 lbs. / day, a MRL of 4, and have been integrated onto combat active DoD platforms for trial demonstrations.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Identifier TECHPORT_89688
Data First Published 2017-06-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Homepage URL
Program Code 026:027
Source Datajson Identifier True
Source Hash b3bee2a0fe4b4ef82d309f9bd2df02527a958f2c
Source Schema Version 1.1

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