Synthesis and Properties of Novel Non-Ionic Polyurethane Dispersion Based on Hydroxylated Tung Oil and Alicyclic Isocyanates

Xiaomin Yang¹, Baixia Ren², Zhiyong Ren^1*, Lei Jiang¹, Wentao Liu², Chengshen Zhu²

¹High & New Technology Research Center of Henan Academy of Sciences, Zhengzhou, China.
²School of Materials Science and Engineering, Zhengzhou University Zhengzhou, China.

DOI: 10.4236/msce.2015.31013                

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.

Keywords

Nonionic Polyurethane, Hydroxylated Tung Oil, Cloud Point, Surface Tension

Conflicts of Interest

The authors declare no conflicts of interest.

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