| Issue |
MATEC Web Conf.
Volume 130, 2017
The International Conference on Composite Material, Polymer Science and Engineering (CMPSE2017)
|
|
|---|---|---|
| Article Number | 07009 | |
| Number of page(s) | 4 | |
| Section | Synthesis and evaluation of composite materials | |
| DOI | https://doi.org/10.1051/matecconf/201713007009 | |
| Published online | 25 October 2017 | |
Surface Control of Thermosetting Fluorinated Polyurethane
School of Material Science & Engineering, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
* Corresponding author: liying@usst.edu.cn
In this paper, thermosetting fluorine-containing polyurethane (S-FPU) was synthesized through a novel method with two-step process and its surface properties was studied. Firstly, fluorine-containing epoxy compound (FO) was obtained by epichlorohydrin (ECH) and tetrafluoropropanol (TFP). Further, the fluorinated polyether polyols (FPO) was synthesized by cationic copolymerization of tetrahydrofuran (THF) with the FO, the fluorine was located on the side chains of the FPO and the molecular weight of FPO was controllable, besides, the molecular weight distribution of FPO was narrow. Finally, the S-FPU was prepared by FPO as soft segment, MDI as a hard segment and TEA as chain extender. The influence of fluorine enrichment on the surface properties of S-FPU was studied by controlling curing temperature, curing time and structure of FPO. In addition, the surface fluorine content of S-FPU and the surface hydrophobicity were studied in detail. The results showed that with the curing temperature decreased, the surface fluorine content of S-FPU increased, and when the curing time was more than 10 hours, the fluorine element did not migrate to the surface. What’s more, with the molecular weight of FPO increased, the surface fluorine content of S-FPU increased.
© The authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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