탄소나노튜브/폴리에스터 복합재의 역학적 거동과 하중전달에 관한 분자 동역학 전산모사 : 그래프팅 가공의 영향

Molecular Dynamics Study on Mechanical Behavior and Load Transfer of CNT/PET Nanocomposites : the Effects of Covalent Grafting

초록

Molecular dynamics simulation and the Mori-Tanaka micromechanics study are performed to investigate the effect of the covalent grafting between CNT and polyester on the mechanical behavior and load transfer of nanocomposites. The transversely isotropic stress-strain curves are determined through the tension and shear simulations according to the covalent grafting. Also, isotropic properties of randomly dispersed nanocomposites are obtained by orientation averaging the transversely isotropic stiffness matrix. By addressing the grafting, the transverse Young's modulus and shear moduli of the nanocomposites are improved, while the longitudinal Young's modulus decreases due to the degradation of the grafted CNT.

키워드

Molecular dynamics; Covalent grafting; Carbon nanotube; Nanocomposites; 분자동역학; 공유결합 그래프팅; 탄소나노튜브; 나노복합재; ELASTIC PROPERTIES; CARBON NANOTUBES; COMPOSITES; EPOXY; FIELD
제목
탄소나노튜브/폴리에스터 복합재의 역학적 거동과 하중전달에 관한 분자 동역학 전산모사 : 그래프팅 가공의 영향
제목 (타언어)
Molecular Dynamics Study on Mechanical Behavior and Load Transfer of CNT/PET Nanocomposites : the Effects of Covalent Grafting
저자
Jin, Juho; Yang, Seunghwa
DOI
10.7234/composres.2017.30.3.193
발행일
2017-06
유형
Article
저널명
Composites Research
권
30
호
3
페이지
193 ~ 201