Castor oil-based cationic waterborne polyurethane dispersions: Storage stability, thermo-physical properties and antibacterial properties

2018 ◽  
Vol 117 ◽  
pp. 169-178 ◽  
Author(s):  
Haiyan Liang ◽  
Lingxiao Liu ◽  
Jingyi Lu ◽  
Moutong Chen ◽  
Chaoqun Zhang
Keyword(s):  
Physical Properties ◽  
Castor Oil ◽  
Storage Stability ◽  
Antibacterial Properties ◽  
Waterborne Polyurethane ◽  
Polyurethane Dispersions ◽  
Thermo Physical Properties ◽  
Cationic Waterborne Polyurethane

Rheological Behavior of Environmentally Friendly Castor Oil-Based Waterborne Polyurethane Dispersions

2013 ◽  
Vol 46 (11) ◽  
pp. 4606-4616 ◽  
Author(s):  
Samy A. Madbouly ◽  
Ying Xia ◽  
Michael R. Kessler
Keyword(s):  
Rheological Behavior ◽  
Castor Oil ◽  
Environmentally Friendly ◽  
Waterborne Polyurethane ◽  
Polyurethane Dispersions

Synthesis of Castor Oil-based Cationic Waterborne Polyurethane Emulsion and Its Application

2020 ◽  
Vol 35 (4) ◽  
pp. 832-840
Author(s):  
Zhi Lü ◽  
Ying Yi ◽  
Chen Zhang ◽  
Kai Lü ◽  
Hao Feng ◽  
...  
Keyword(s):  
Castor Oil ◽  
Waterborne Polyurethane ◽  
Cationic Waterborne Polyurethane

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

Flame Retardant Modified Bio‐Based Waterborne Polyurethane Dispersions Derived from Castor Oil and Soy Polyol

2021 ◽  
pp. 2000248
Author(s):  
Chengshuang Wang ◽  
Jie Zhang ◽  
Jieru Huang ◽  
Han Wang ◽  
Meng He ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Castor Oil ◽  
Waterborne Polyurethane ◽  
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.

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

The Structure and Properties of UV-Curable Cationic Waterborne Polyurethane Acrylate

2015 ◽  
Vol 1090 ◽  
pp. 31-37
Author(s):  
Yi Ding Meng ◽  
Hong Wei Li
Keyword(s):  
Soft Segment ◽  
Waterborne Polyurethane ◽  
Decomposition Temperature ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Uv Curable ◽  
High Elongation ◽  
Polyurethane Dispersions ◽  
High Degree ◽  
Cationic Waterborne Polyurethane

A series of stable double-terminated UV reactive cationic waterborne polyurethane dispersions was synthesized, while the structure was confirmed by infrared spectroscopy,laser particle size analysis and free NCO root titration; modified by co-monomerhydroxyethyl acrylate with the UV radiation fast curing, the influence of hydroxyethyl acrylate proportion and the polyurethane’s nNCO/nOH(R value) to the thermal properties, mechanical properties and yellowing of the product was investigated. The investigation illustrated the UV-curable cationic waterborne polyurethaneacrylate film effectively forming a semi-interpenetrating network system to achieve rapid curing coating.The results showedthe product cured by WPU dispersion of R=1.5 mixed with equimolar HEA obtained lowyellowing, the maximum breaking strength, high elongation at break, high thermal decomposition temperature, high crystallization temperature of hard segment, low glass transition temperature of soft segment, high degree of phase separation, better overall performance.

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