abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 05월 20일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제125회 대한화학회 학술발표회 및 총회 Enhanced thermal and mechanical properties of epoxy composites at ultra-low loading of functionalized MoS2 nanosheets

등록일
2020년 2월 5일 16시 48분 27초
접수번호
0499
발표코드
POLY.P-17 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
온라인 PDF 제출
발표형식
포스터
발표분야
Polymer Chemistry
저자 및
공동저자
Shahina Riaz, Soo-Jin Park1,*
Chemistry, Inha University, Pakistan
1Department of Chemistry, Inha University, Korea
In this study, branched polyethyleneimine (b-PEI)-assisted exfoliation of MoS2 nanosheets (MoS2¬-PEI) was carried out. These non-covalently functionalized MoS2-PEI nanosheets were employed as toughening agents for epoxy composites. The contents of MoS2-PEI nanosheets were maintained at weight fractions lower than 1 wt.%. The epoxy composites exhibited a 67% increase in fracture toughness (KIC) and a corresponding 101% increase in fracture energy (GIC) at nanosheets loadings as small as 0.09 wt.%. The overall flexural modulus (E) and strength (σ) were not highly responsive to the addition of the MoS2-PEI nanosheets. The dramatically improved mechanical properties of the epoxy composites can be attributed to the good interfacial interaction between the MoS2-PEI¬ nanosheets owing to the presence of b-PEI molecules, their inherent strength, high aspect ratio, and excellent barrier effect.

상단으로