A polymer matrix system of thermoset fiber-reinforced composites helps protect its high modulus and strength fibers from an adverse environment and transfers the load to the reinforced fibers. However, when subjected to a high temperature that exceeds its postcuring-stage temperature, the polymeric matrix will decompose or be charred. To address this issue, various techniques have been developed to improve the flame-retardant property of the polymeric matrix. One of these techniques is to either delay ignition or release moisture to extinguish the flame by combining other chemicals or reactively modifying the epoxy resin. Graphene oxide (GO) nanofilms deposited on top of composite surfaces were compared with the test results of nanocomposite coatings of GO and nanoclay particles on composite surfaces. GO thin film applied to the surface of fiber-reinforced composites acts as a heat shield to quickly dissipate heat and eliminate local heat formation. Thermal tests, such as thermogravimetric analysis (TGA), 45-deg burn tests, vertical burn tests, and surface paint adhesion tests were accomplished. Average burn lengths and the average burn areas were reduced with nanoparticle inclusion to the nanoclay samples and graphene samples. TGA analysis indicated that the nanoclay inclusion samples, as well as the graphene inclusion samples, have a higher percentage weight loss than that of the base sample. GO inclusion samples were less affected than nanoclay inclusion samples during the vertical as well as 45-deg burn tests. In addition, there were no signs of damage to the GO thin film that was secondarily bonded to the surface of composite panels for the burn test.
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July 2019
Research-Article
Effects of Graphene Oxide Thin Films and Nanocomposite Coatings on Flame Retardancy and Thermal Stability of Aircraft Composites: A Comparative Study
Md. Nizam Uddin,
Md. Nizam Uddin
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: engrnizam02@gmail.com
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: engrnizam02@gmail.com
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Louie Le,
Louie Le
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: mxuddin7@shockers.wichita.edu
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: mxuddin7@shockers.wichita.edu
Search for other works by this author on:
Rajeev Nair,
Rajeev Nair
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: rajeev.nair@wichita.edu
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: rajeev.nair@wichita.edu
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Ramazan Asmatulu
Ramazan Asmatulu
1
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: ramazan.asmatulu@wichita.edu
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: ramazan.asmatulu@wichita.edu
1Corresponding author.
Search for other works by this author on:
Md. Nizam Uddin
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: engrnizam02@gmail.com
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: engrnizam02@gmail.com
Louie Le
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: mxuddin7@shockers.wichita.edu
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: mxuddin7@shockers.wichita.edu
Rajeev Nair
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: rajeev.nair@wichita.edu
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: rajeev.nair@wichita.edu
Ramazan Asmatulu
Department of Mechanical Engineering,
1845 Fairmount,
Wichita, KS 67260
e-mail: ramazan.asmatulu@wichita.edu
Wichita State University
,1845 Fairmount,
Wichita, KS 67260
e-mail: ramazan.asmatulu@wichita.edu
1Corresponding author.
Contributed by the Materials Division of ASME for publication in the Journal of Engineering Materials and Technology. Manuscript received July 24, 2018; final manuscript received December 31, 2018; published online March 11, 2019. Assoc. Editor: Anastasia Muliana.
J. Eng. Mater. Technol. Jul 2019, 141(3): 031004 (7 pages)
Published Online: March 11, 2019
Article history
Received:
July 24, 2018
Revision Received:
December 31, 2018
Accepted:
January 1, 2019
Citation
Uddin, M. N., Le, L., Nair, R., and Asmatulu, R. (March 11, 2019). "Effects of Graphene Oxide Thin Films and Nanocomposite Coatings on Flame Retardancy and Thermal Stability of Aircraft Composites: A Comparative Study." ASME. J. Eng. Mater. Technol. July 2019; 141(3): 031004. https://doi.org/10.1115/1.4042663
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