Yoon Seo-Jeong, Lee Se-Jung, Baek Jae-Hoon, Kim Tae-Hee, Jeon In-Yup
Department of Chemical Engineering, Nanoscale Environmental Sciences and Technology Institute, Wonkwang University, 460 Iksandae-ro, Iksan 54538, Republic of Korea.
School of Energy and Chemical Engineering, Center for Dimension-Controllable Covalent Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan 44919, Republic of Korea.
Polymers (Basel). 2024 Oct 10;16(20):2859. doi: 10.3390/polym16202859.
Cyano-functionalized graphitic nanoplatelets (CyGNs) are synthesized by means of a mechanochemical reaction between graphite and acrylonitrile. The resulting CyGNs exhibit excellent mechanical properties and are highly dispersible in various solvents (i.e., THF). Due to their chemical compatibility (specifically, cyano functional groups), the CyGNs serve effectively as a reinforcing filler for acrylonitrile butadiene styrene (ABS) resin. Consequently, compared to pure ABS, CyGN&ABS-X demonstrates improved mechanical properties and better thermal stability. Notably, the CyGN&ABS-1 specimen exhibits significant enhancements in the tensile strength (26 ± 1 MPa), Young's modulus (992 ± 71 MPa), and tensile toughness (22 ± 3 MPa), representing increases of approximately 130.6%, 19.2%, and 59.6%, respectively, over pure ABS. This underscores the ability of a mechanochemical reaction to directly modify the functional groups of graphitic nanoplatelets (GnPs) as fillers, facilitating their strong compatibility with a variety of polymers, including copolymers.
氰基功能化石墨纳米片（CyGNs）是通过石墨与丙烯腈之间的机械化学反应合成的。所得的CyGNs具有优异的机械性能，并且在各种溶剂（即四氢呋喃）中具有高度分散性。由于其化学相容性（特别是氰基官能团），CyGNs有效地用作丙烯腈-丁二烯-苯乙烯（ABS）树脂的增强填料。因此，与纯ABS相比，CyGN&ABS-X表现出改善的机械性能和更好的热稳定性。值得注意的是，CyGN&ABS-1试样在拉伸强度（26±1MPa）、杨氏模量（992±71MPa）和拉伸韧性（22±3MPa）方面有显著提高，分别比纯ABS增加了约130.6%、19.2%和59.6%。这突出了机械化学反应直接修饰作为填料的石墨纳米片（GnPs）官能团的能力，促进了它们与包括共聚物在内的各种聚合物的强相容性。
