Cryogenic properties of cnt reinforced uhmwpe laminated composites

Gülşah Bahçeli, Bilim Atli-Veltin, Dennis Wilbers, Hulya Cebeci

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Energy transition towards cleaner fuels and renewable energy brings the attention to liquefied natural gas (LNG) and liquid hydrogen (LH2) applications. Cryogenic storage temperatures make the suitable material selection for the construction of such applications difficult. Ultra-high molecular weight polyethylene (UHMWPE) thermoplastics are selected for this research to investigate their shear behavior performances with nanoadditives. Composites made of UHMWPE and carbon nano tubes (CNTs) are subjected to shear loading at room and liquid nitrogen (LN2) temperatures. Considering that UHMWPE films do not bond to other materials easily, significant attention is paid to selecting the correct manufacturing conditions to achieve good bonding between the CNT and the composite plies. Herein, paper formed of CNT, also known as CNT buckypaper (CNT BP), and melt mixed CNT/high density polyethylene (HDPE) are integrated to the structure. The results show that the interlaminar shear strength (ILSS) of UHMWPE composites improved 5% by interleaving the CNT BP with the lowest percentage which is 0.05 with respect to the reference and 8% by adding the melt mixed CNT/HDPE film at room temperature. Under the cryogenic condition, ILSS showed 3% increase with the CNT/HDPE film addition, but no improvement with the CNT BP addition.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
DOIs
Publication statusPublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: 7 Jan 201911 Jan 2019

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego
Period7/01/1911/01/19

Bibliographical note

Publisher Copyright:
© 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc.

Funding

This work is financially supported by ITU-AYP Project with a project number of 2017-6. Gülşah Bahçeli acknowledges support from The Boeing Company for a Graduate Student Scholarship Program. The authors gratefully acknowledge Ramon van Rooij and Hilal Erkoç for specimen preparation assistances and Ramona Arts for SEM imaging.

FundersFunder number
Boeing

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