EFFICIENT LOAD TRANSFER TO FUNCTIONALIZED CARBON NANOTUBES AS REINFORCEMENT IN POLYMER NANOCOMPOSITES
Multiwalled carbon nanotubes (MWCNTs) grafted with poly(L-lactide-e-caprolactone) (PCLA) were synthesized by in situ ring opening polymerization and used as a reinforcement for neat PCLA. The analyzed data revealed that the applied tensile load on the composite was transferred to the functionalized MWCNTs, leading to a strain failure of the MWCNTs rather than an adhesive failure between the MWCNTs and the matrix. In comparison between the functionalized and pristine MWCNTs, as reinforcement materials for PCLA random copolymers (80％ L-lactide (LA), 20％ e-caprolactone (CL)) (PCLAR80), the functionalized MWCNTs are more effective reinforcement materials than pristine MWCNTs. In comparison with the neat PCLAR80, the increasing in tensile strength (28.03％) and elongation at failure (49.6％) when functionalized MWCNT loading reaches 1.0 wt％, indicate that an effective reinforcement of the MWCNT-OH-g-PCLA.
Nanocomposite carbon nanotubes poly L-lactide poly e-caprolactone
ALI NABIPOUR CHAKOLI WEI CAI SUI JIEHE JIANG TAO FENG
Department of Materials Physics and chemistry, School of Materials Science and Engineering, Harbin Institute of Technology, P.O.Box 405, Harbin, 150001, P.R.China
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1401-1406
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）