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Thermal Properties of Hybrid Carbon Nanotube/Carbon Fiber PolymerCarbon fiber reinforced polymer (CFRP) composites possess many advantages for aircraft structures over conventional aluminum alloys: light weight, higher strength- and stiffness-to-weight ratio, and low life-cycle maintenance costs. However, the relatively low thermal and electrical conductivities of CFRP composites are deficient in providing structural safety under certain operational conditions such as lightning strikes. One possible solution to these issues is to interleave carbon nanotube (CNT) sheets between conventional carbon fiber (CF) composite layers. However, the thermal and electrical properties of the orthotropic hybrid CNT/CF composites have not been fully understood. In this study, hybrid CNT/CF polymer composites were fabricated by interleaving layers of CNT sheets with Hexcel (Registered Trademark) IM7/8852 prepreg. The CNT sheets were infused with a 5% solution of a compatible epoxy resin prior to composite fabrication. Orthotropic thermal and electrical conductivities of the hybrid polymer composites were evaluated. The interleaved CNT sheets improved the in-plane thermal conductivity of the hybrid composite laminates by about 400% and the electrical conductivity by about 3 orders of magnitude.
Document ID
20160012026
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Kang, Jin Ho
(National Inst. of Aerospace Hampton, VA, United States)
Cano, Roberto J.
(NASA Langley Research Center Hampton, VA, United States)
Luong, Hoa
(NASA Langley Research Center Hampton, VA, United States)
Ratcliffe, James G.
(NASA Langley Research Center Hampton, VA, United States)
Grimsley, Brian W.
(NASA Langley Research Center Hampton, VA, United States)
Siochi, Emilie J.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
October 6, 2016
Publication Date
September 19, 2016
Subject Category
Composite Materials
Report/Patent Number
NF1676L-23471
Meeting Information
Meeting: American Society for Composite (ASC) Technical Conference and ASTM D30 Meeting
Location: Williamsburg, VA
Country: United States
Start Date: September 19, 2016
End Date: September 22, 2016
Sponsors: American Society for Composites, ASTM International
Funding Number(s)
WBS: WBS 081876.02.07.03.01.02
Distribution Limits
Public
Copyright
Public Use Permitted.
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