Spacecraft Thermal Protection Systems (TPS) Based on Polybenzoxazole (PBO) With Unique UV, Atomic-O and Solar Wind Protective Coatings

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$65,282.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
NNA05AC14C
Award Id:
76833
Agency Tracking Number:
040556
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
206 Ticonderoga Blvd, Freehold, NJ, 07728
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
807772942
Principal Investigator:
Prasanna Chandrasekhar
Principal Investigator
(732) 462-1270
chandra.p@ashwin-ushas.com
Business Contact:
Prasanna Chandrasekhar
Business Official
(732) 462-1270
chandra.p@ashwin-ushas.com
Research Institute:
n/a
Abstract
Poly(benzoxazole) (PBO) is a new polymeric material extremely promising for external spacecraft structural applications, including, e.g., debris and micrometeoroid shields and crew suits. One of its drawbacks is its reduced resistance to the far-UV and atomic-O. If a well-adhering, protective coating for PBO fibers and sheets could be found, a plethora of space applications would be opened up. In ongoing work with very thin, flexible, Variable Emittance panels for spacecraft thermal control applications, this firm has developed new unique, proprietary, very thin (< 0.4 micron), very light weight coatings which are applied on the top conducting polymer (CP) layer of these devices (the layer which faces the space environment). These coatings provide protection against UV/VUV, atomic-O, Solar Wind and electrostatic discharge in space, and have very high flexibility and very good adhesion. In further work, these coatings were deposited on PBO, and shown to have excellent adhesion and impart good UV protection. The present work seeks to further develop this technology by testing and refining a large number of these coatings on a variety of PBO substrate types. Extensive mechanical, UV and space vacuum testing, and at least one atomic-O and one Solar Wind test, are planned.

* information listed above is at the time of submission.

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