Effects of castor oil, glycol semi-ester, and polymer concentration on the properties of waterborne polyurethane dispersions

2008 ◽  
Vol 49 (1) ◽  
pp. 162-167 ◽  
Author(s):  
Chuanhua Gao ◽  
Xiaoming Xu ◽  
Jiani Ni ◽  
Weiwei Lin ◽  
Qiang Zheng
Keyword(s):  
Castor Oil ◽  
Polymer Concentration ◽  
Waterborne Polyurethane ◽  
Polyurethane Dispersions

Castor oil-glycerol-based waterborne polyurethane dispersions

2021 ◽  
Vol 157 ◽  
pp. 106333
Author(s):  
Jing Zhang ◽  
Yi-min Wu ◽  
Hong-li Zhang ◽  
Ting-hui Yan ◽  
Yu-zhong Huang ◽  
...  
Keyword(s):  
Castor Oil ◽  
Waterborne Polyurethane ◽  
Polyurethane Dispersions

Development of environmental friendly castor oil-based waterborne polyurethane dispersions with polyaniline

2016 ◽  
Vol 27 (11) ◽  
pp. 1535-1540 ◽  
Author(s):  
T. Gurunathan ◽  
Ravi Arukula ◽  
Jin Suk Chung ◽  
Chepuri R.K. Rao
Keyword(s):  
Castor Oil ◽  
Waterborne Polyurethane ◽  
Environmental Friendly ◽  
Polyurethane Dispersions

Preparation and Characterization of Castor Oil-Based Cationic Waterborne Polyurethane

2015 ◽  
Vol 1090 ◽  
pp. 3-7
Author(s):  
Kai Liu ◽  
Song Ping Zhang ◽  
Zhi Guo Su ◽  
Guang Hui Ma
Keyword(s):  
Castor Oil ◽  
Hard Segment ◽  
Waterborne Polyurethane ◽  
Gravimetric Analysis ◽  
Waterborne Polyurethanes ◽  
Hard Segment Content ◽  
Ir Analysis ◽  
Hard Segments ◽  
Polyurethane Dispersions

A variety of castor oil-based cationic polyurethane dispersions (PUDs) were synthesized. The effects of hard segment content on the properties of PUDs and the resulting polyurethane films were investigated by mastersizer, Fourier transform infrared (IR), thermal gravimetric analysis (TGA) and stress-strain test. As the hard segment content increased from 37.1 to 45.6 wt %, the particle size of the PUDs increased from 10 to 190 nm. IR analysis showed that hydrogen bonding between hard segments enhanced with the increase of hard segment content. For this enhancement the films had an increased tensile strength from 2.0 to 9.4 MPa and an improved glass transition temperature (Tg) from 48oC to 75oC. TGA showed the films were thermally stable up to 200oC and had biphasic degradation at around 330oC and 440oC. The versatile castor oil-based cationic waterborne polyurethanes are promising in applications as adhesives and coatings.

Design of self-dispersible charged-polymer building blocks for waterborne polyurethane dispersions

2018 ◽  
Vol 101 ◽  
pp. 324-331 ◽  
Author(s):  
I. Jiménez-Pardo ◽  
P. Sun ◽  
R.A.T.M. van Benthem ◽  
A.C.C. Esteves
Keyword(s):  
Waterborne Polyurethane ◽  
Building Blocks ◽  
Charged Polymer ◽  
Polyurethane Dispersions
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