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Innovative Hybridsil Poly(Siloxane Imide) Composite Repair Materials and Methods

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX16CK08P
Agency Tracking Number: 150198
Amount: $125,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: T12.02
Solicitation Number: N/A
Solicitation Year: 2016
Award Year: 2016
Award Start Date (Proposal Award Date): 2016-06-10
Award End Date (Contract End Date): 2017-06-09
Small Business Information
158 Wheatland Drive
Pembroke, VA 24136-3645
United States
DUNS: 000000000
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Vince Baranauskas
 Principal Investigator
 (540) 626-6266
Business Contact
 Melissa Campbell
Title: CFO
Phone: (540) 626-3645
Research Institution
 Virginia Tech
 Melissa Campbell
1333 Randolph Hall
Blacksburg, VA 24061-0076
United States

 (540) 626-6266
 Domestic Nonprofit Research Organization

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.

* Information listed above is at the time of submission. *

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