Back to Search
Start Over
Effects of coupling agents on the impact fracture behaviors of T-ZnOw/PA6 composites
- Source :
-
Composites Science & Technology . May2008, Vol. 68 Issue 6, p1338-1347. 10p. - Publication Year :
- 2008
-
Abstract
- Abstract: The impact fracture behaviors of polyamide 6 (PA6) composites with tetra-needle-shaped zinc oxide whisker (T-ZnOw) are studied in this work. Two different silane coupling agents, KH-550 with amino groups and KH-560 with epoxy groups, are used to treat T-ZnOw. The results show that the coupling agent types, content as well as the T-ZnOw content have much influence on the impact fracture behaviors of T-ZnOw/PA6 composites. Compared with the composites filled with untreated T-ZnOw, in which the impact strength decreases linearly with the increasing content of filler, chemical treated T-ZnOw improves the impact strength of the composites apparently due to the improved interfacial interaction between T-ZnOw and matrix. Further results show that the main toughening mechanisms of treated T-ZnOw in PA6 composites include the pullout of T-ZnOw from matrix, the anchoring role of other three needles when one of the four needles of T-ZnOw is pulled out from matrix, and the local yielding or deformation of matrix around the T-ZnOw. [Copyright &y& Elsevier]
- Subjects :
- *POLYAMIDES
*ZINC oxide
*T-matrix
*DEFORMATIONS (Mechanics)
Subjects
Details
- Language :
- English
- ISSN :
- 02663538
- Volume :
- 68
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Composites Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 31306885
- Full Text :
- https://doi.org/10.1016/j.compscitech.2007.12.004