TITLE:
Synthesis and Properties of Novel Non-Ionic Polyurethane Dispersion Based on Hydroxylated Tung Oil and Alicyclic Isocyanates
AUTHORS:
Xiaomin Yang, Baixia Ren, Zhiyong Ren, Lei Jiang, Wentao Liu, Chengshen Zhu
KEYWORDS:
Nonionic Polyurethane, Hydroxylated Tung Oil, Cloud Point, Surface Tension
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.3 No.1,
January
21,
2015
ABSTRACT: Hydroxylated Tung oil (HTO) based nonionic
polyurethane dispersion (HTO-NPUD) were synthesized using dicyclohexyl methane
diisocyanate (HMDI) and HTO as main hydrophobic materials whereas polyethylene glycol-800
(PEG-800) as hydrophilic chain extender. To effectively study the effects of
HTO on properties of NPUD, polypropylene glycol-400(PPG-400) based NPUD was prepared
by HMDI reacting with PPG-400 and PEG-800. The structures of those novel
nonionic polyurethane dispersions were characterized by FTIR and 1H NMR.
Moreover, particle size and size distribution, cloud point and surface tension
had been investigated. Results showed that, by comparing with PPG based NPUD
(PPG-NPUD), the introduction of HTO into NPUD result in larger particle size
and more uniformed particle size distribution, higher cloud point and lower
surface tension.