Polybenzoxazine Manufacturing Technology for Lightweight Large Scale Structures

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$124,950.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
NNX12CF55P
Agency Tracking Number:
114810
Solicitation Year:
2011
Solicitation Topic Code:
X5.02
Solicitation Number:
n/a
Small Business Information
Material Answers LLC
66 Buckskin Drive, Weston, MA, 02493-1130
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
016496292
Principal Investigator:
Chris Scott
Principal Investigator
(617) 378-1976
cscott@materialanswers.com
Business Contact:
Chris Scott
Business Official
(617) 378-1976
cscott@materialanswers.com
Research Institution:
Stub




Abstract
The proposed work will demonstrate the process feasibility and mechanical properties of a polybenzoxazine/carbon fiber composite that will meet NASA's requirements for large scale lightweight structures with high temperature performance. Our proposed approach utilizes a benzoxazine resin formulation including a small main-chain oligomer in combination with a high performance monomer. This novel approach will provide for low resin viscosity to allow easier infiltration of the resin mixture into fibrous reinforcements, while maintaining superior mechanical properties, particularly temperature resistance. This technology will allow utilization of well-known manufacturing techniques capable of preparing large scale structures having affordable, reliable, predictable performance with reduced costs. The processing characteristics will be targeted to molding methods including resin transfer molding, vacuum assisted resin transfer molding, autoclave molding, and similar methods. To achieve these processability improvements we propose using a benzoxazine resin mixture of small main-chain oligomers based on bisphenol-F isomers and oxydianiline in combination with a high performance monomer. The high performance monomer is specifically designed to enhance the rate of polymerization through the near-neighbor approach. The polybenzoxazine matrix will be reinforced with carbon fibers. This work will extend previously demonstrated lightweight polybenzoxazine polymer achievements by utilizing enhanced modern chemistry to extend the processing window. The result will be a superior lightweight material with superior processability compared to other polymer matrix composites.

* information listed above is at the time of submission.

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