Polybenzoxazine Materials for Radiation Shielding, Phase II

Metadata Updated: November 12, 2020

The proposed work will expand upon the Phase I efforts based on lightweight multifunctional composite materials with polybenzoxazine (PBz) matrices, with emphasis on high hydrogen content composites that provide excellent radiation shielding. The work focuses on material systems that provide multifunctional capabilities including strength, stiffness, and toughness. Phase I work demonstrated proof-of-concept for the novel benzoxazine resin based formulation and demonstrated its use in the fabrication of prototype polyethylene fiber composite. This approach provides a novel path to addressing NASA's need for lightweight shielding materials that can also serve as structural members and provide protection from micrometeoroid impact. Polybenzoxazines are organic thermosetting polymers that can be tailored at the molecular level to optimize characteristics that are particularly advantageous for radiation shielding applications, such as high hydrogen content. Polybenzoxazines are easily synthesized from inexpensive raw materials and can be optimized for high hydrogen content, high temperature performance, and/or high strength to weight ratio.
Our approach to these multifunctional spacecraft materials continues refinement of the polybenzoxazine composite technology that was demonstrated in Phase I. Specific goals of the project include: a) optimization of composite processing and quality and determination of the process window; b) determination and benchmarking of mechanical properties; c) preparation of target samples for shielding testing; d) and scale-up of both the resin synthesis and composites manufacture.

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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_34019
Data First Published 2017-11-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://techport.nasa.gov/view/34019
Program Code 026:027
Source Datajson Identifier True
Source Hash 89055b1daa3e6c9370d9d09aacbb7c01edb80398
Source Schema Version 1.1

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