NASA SBIR 2011 Solicitation


PROPOSAL NUMBER: 11-1 X5.02-9189
SUBTOPIC TITLE: Advanced Fabrication and Manufacturing of Metallic and Polymer Matrix Composite Materials for Lightweight Structures
PROPOSAL TITLE: Polybenzoxazine Manufacturing Technology for Lightweight Large Scale Structures

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Material Answers LLC
66 Buckskin Drive
Weston, MA 02493 - 1130
(617) 378-1976

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Chris Scott
66 Buckskin Drive
Weston, MA 02493 - 1130
(617) 378-1976

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 2
End: 3

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
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.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The proposal is specifically targeted to the NASA applications highlighted in the X5.02 solicitation. The proposed lightweight polybenzoxazine composites are potentially relevant to the following NASA applications: Space transportation vehicles; International Space Station Modules; Micrometeoroid and Orbital Debris Shielding; and Thermal protection structures.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The developed composites can be applied to broad commercial aerospace use due to ease of processing and advantageous property profiles. Very recently, Airbus has qualified use of benzoxazine-based composites for interior and exterior applications using the first generation benzoxazine chemistry. The benzoxazine chemistry proposed in this SBIR proposal is a further advanced system that may be termed as the second and third generation benzoxazines. Thus, the benzoxazine technology that has already been accepted in the demanding aerospace arena can further be advanced. Another potential area of application is the very fast land-based transportation systems, such as magnetic levitation trains, where light-weight, high mechanical performance, and fire safety are extremely important.

TECHNOLOGY TAXONOMY MAPPING (NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.)
Isolation/Protection/Radiation Shielding (see also Mechanical Systems)
Processing Methods

Form Generated on 11-22-11 13:43