Journal
POLYMER
Volume 136, Issue -, Pages 1-5Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2017.12.040
Keywords
Strain hardening; Linear polymer; Polymeric foaming; Smart material; Shrinking fiber; Heat activated fiber
Categories
Funding
- University of Vermont Spark VT program [S1610]
Ask authors/readers for more resources
The strain hardening behavior of polymers has important roles in processing such as foaming, film formation, and fiber spinning. The most common method to enhance strain hardening is to introduce a long-chain branching structure on the backbone of a linear polymer, but this method is costly and challenging to tailor the behavior. We hypothesized that in situ shrinking fibers can increase the strain hardening of linear polymers, and the degree can be efficiently controlled. In this study, we show that heat-activated shrinking fibers compounded in linear polypropylene enhance strain hardening and foamability. Moreover, changing processing conditions, such as temperature, can amplify the degree of enhancement. Rheological measurements and physical foaming tests are shown to support our hypothesis. (c) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available