TY - JOUR
T1 - Highly improved interfacial affinity in carbon fiber-reinforced polymer composites via oxygen and nitrogen plasma-assisted mechanochemistry
AU - Lee, Young Mo
AU - You, Jiwan
AU - Kim, Minsung
AU - Kim, Tae Ann
AU - Lee, Sang Soo
AU - Bang, Joona
AU - Park, Jong Hyuk
N1 - Funding Information:
This research was supported by a grant from the Fundamental R&D Program for Technology of World Premier Materials funded by the Ministry of Trade, Industry and Energy, Republic of Korea . We also acknowledge the financial support from a Korea Institute of Science and Technology internal project . S.-S. Lee appreciates the research grant from the KU-KIST Graduate School .
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/5/15
Y1 - 2019/5/15
N2 - Compounding polymers with carbon fibers (CFs) is a highly effective means of producing polymer composites with enhanced mechanical properties. However, in most conventional carbon fiber-reinforced polymer (CFRP) composites, mechanical improvements are limited by low interfacial affinity between the polymer and the CFs. The plasma-assisted mechanochemistry (PMC) process described herein resulted in covalent bonds between the polymer matrix and CFs, greatly increasing the interfacial affinity between the two materials and allowing the efficient transfer of stress from the polymer to the CFs. Polyketone (PK) and CFs were compounded via PMC processing under O 2 , N 2 , and Ar plasmas, and carbon nanotubes (CNTs) were introduced at the PK/CF interface. The resulting PK/CNT/CF composites exhibited significantly improved mechanical properties, especially when treated with O 2 and N 2 plasmas. The tensile strength and Young's modulus of O 2 plasma-treated composites increased by 20% and 31%, respectively, compared to those of conventional composites. This approach is generally applicable to the development of high-performance CFRP composites.
AB - Compounding polymers with carbon fibers (CFs) is a highly effective means of producing polymer composites with enhanced mechanical properties. However, in most conventional carbon fiber-reinforced polymer (CFRP) composites, mechanical improvements are limited by low interfacial affinity between the polymer and the CFs. The plasma-assisted mechanochemistry (PMC) process described herein resulted in covalent bonds between the polymer matrix and CFs, greatly increasing the interfacial affinity between the two materials and allowing the efficient transfer of stress from the polymer to the CFs. Polyketone (PK) and CFs were compounded via PMC processing under O 2 , N 2 , and Ar plasmas, and carbon nanotubes (CNTs) were introduced at the PK/CF interface. The resulting PK/CNT/CF composites exhibited significantly improved mechanical properties, especially when treated with O 2 and N 2 plasmas. The tensile strength and Young's modulus of O 2 plasma-treated composites increased by 20% and 31%, respectively, compared to those of conventional composites. This approach is generally applicable to the development of high-performance CFRP composites.
KW - Carbon fiber-reinforced polymer composites
KW - Covalent bonds
KW - Interfacial affinity
KW - Mechanochemical reaction
KW - Plasma-assisted mechanochemistry
UR - http://www.scopus.com/inward/record.url?scp=85061789969&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2019.02.021
DO - 10.1016/j.compositesb.2019.02.021
M3 - Article
AN - SCOPUS:85061789969
SN - 1359-8368
VL - 165
SP - 725
EP - 732
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
ER -