Interchain transesterification as a solid-state composite welding mechanism, Phase I

Metadata Updated: July 17, 2020

We will develop novel composite structures of carbon fiber reinforced high performance aromatic thermosetting copolyester (ATSP) resin composites (ATSP/C) being solid-state bonded to primary metal spacecraft structures in order to build lightweight elements with tailorable structural properties without necessitating additional uses of adhesives or mechanical joints. The ITR bonding approach uniquely enables chemical interfacial (surface) self-welding mechanism effectively consolidating pre-cured parts through a smooth strong and continuous bond line. The ITR bonding fully solid-state process, which eliminates approaches that rely on uncured polymer or a meltable interstitial phase. The ITR ensures physical integrity of joint members of the structure and the reversible adhesive within the range of temperatures experienced during day/night cycles in space. The ITR is the first viable composite welding scheme for fully cured thermoset composites. Tailorable ATSP chemistry can be adapted to nearly any polymer processing technique by adjustments in oligomer structure providing unique advantages compared to conventional polymer matrices. In Phase I, we will develop an out-of-autoclave fabrication method to produce solid-state bond consolidated carbon fiber reinforced ATSP composite laminae and ATSP coated aerospace grade metal substrates. Additionally, we will perform physical characterization, thermomechanical property measurements and performance analyses of ITR bonded specimens. Additionally, we will develop thermal-electrical-mechanical finite element analysis models for optimized composite design with tailorable physical properties.

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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 August 1, 2018
Metadata Updated Date July 17, 2020

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93579
Public Access Level public
Bureau Code 026:00
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Catalog Describedby
Harvest Object Id 2e754dd2-c7a1-4e52-9455-3c3121a4ad0b
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-12-01
Homepage URL
Data Last Modified 2020-01-29
Program Code 026:027
Source Datajson Identifier True
Source Hash 190ab77bfd22dc3ed471279a086f6bbc710ce31e
Source Schema Version 1.1

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