| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1630462 | Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material | 2008 | 5 Pages |
Abstract
The influence of four kinds of binders consisting of paraffin wax (PW), random-polypropylene (RPP), high-density polyethylene (HDPE), and stearic acid (SA) on the rheological behavior of injection-molded SiC feedstocks was investigated over a temperature range of 150°C to 180°C and a shear rate range of 4 sâ1 to 1259 sâ1. The results showed that all the feedstocks exhibited pseudoplastic flow behavior. The wax-based binder of multipolymer components (PW-RPP-HDPE) exhibited better comprehensive rheological properties compared with the binder of monopolymer components (PW-RPP or PW-HDPE). The addition of 5wt% SA to the binder could reduce the viscosity of the feedstock but enhance the rheological stability by improving the wettability between the binder and the SiC powder. The binder of 65wt% PW + 15wt% HDPE + 15wt% RPP + 5wt% SA was found to be a better binder for microsized SiC injection molding.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shubin Ren, Xinbo He, Xuanhui Qu, Islam S. Humail, Yanping Wei,