Evaluation of Adhesion Property of UHMWPE Fibers/Nano-epoxy by a Pullout Test |
| |
Authors: | Soumen Jana Aruna Zhamu Wei-Hong Zhong Yong Xue Gan |
| |
Affiliation: |
a Department of Mechanical Engineering and Applied Mechanics, North Dakota State University, Fargo, North Dakota, USA
b Department of Mechanical Engineering, Albert Nerken School of Engineering, Cooper Union for the Advancement of Science and Art, New York City, New York, USA |
| |
Abstract: | Ultrahigh-molecular-weight polyethylene (UHMWPE) fibers have poor wetting and adhesion properties to polymer resins because of the inert surface of the fibers. In our previous study, a reactive nano-epoxy matrix, developed by making a modification on the matrix with reactive graphitic nanofibers (r-GNFs), showed improved wettability to UHMWPE fibers. In this work, fiber bundle pullout tests were conducted to evaluate the adhesion property between the UHMWPE fibers and the nano-epoxy matrices. Analysis of load-displacement curves from pullout tests shows that debonding initiation load and ultimate debonding load increased considerably, because of effective improvement of adhesion between the UHMWPE fibers and nano-epoxy matrix. Stress-controlled and energy-controlled models of interfacial debonding were applied for theoretical analyses. Results from ultimate IFSS, frictional shear stress, and critical energy-release rate are in good agreement with experimental results. Nano-epoxy matrix with 0.3 wt% r-GNFs shows effective improvement in terms of adhesion property between UHMWPE fiber and epoxy. |
| |
Keywords: | Epoxy Graphitic nanofibers Interfacial adhesion Pullout test Ultrahigh molecular polyethylene (UHMWPE) fiber |
本文献已被 InformaWorld 等数据库收录! |
|