Synthesis of High Solid Content Acrylic-Polyurethane Hybrid Emulsions with Low Viscosity

2012 ◽  
Vol 268-270 ◽  
pp. 41-44
Author(s):  
Zhao Xiang Zheng ◽  
Shu Fang Liu ◽  
Wei Bin Lin ◽  
Xiao Ting Guo ◽  
Yan Fen He ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Solid Content ◽  
High Solid Content ◽  
High Solid ◽  
Low Viscosity ◽  
Acrylic Polyurethane ◽  
Anionic Groups

The emulsion polymerization of methyl methacrylate (MMA) with butyl acrylate (BA) using aqueous polyurethane dispersion as seed was undertaken to prepare acrylic-polyurethane (PUA) hybrid emulsions with high solid content. The concentrations of the anionic groups were varied by adding different amount of dimethylolpropionic acid (DMPA). The emulsions with a similar bimodal particle size distribution (PSD) were obtained. The viscosity of the emulsions is about 350 mPa.s while the solid content is about 55%.

Preparation of High Solid Content Polyurethane Emulsion with Sulfonate Hydrophilic Chain-Extending Agents

2014 ◽  
Vol 548-549 ◽  
pp. 57-60 ◽  
Author(s):  
Xiao Li Wei ◽  
Fa Xing Zhang
Keyword(s):  
Particle Size ◽  
Storage Stability ◽  
Solid Content ◽  
Spherical Particles ◽  
Acid Salt ◽  
High Solid Content ◽  
Electron Microscopic ◽  
High Solid ◽  
Low Viscosity ◽  
Stability Of Emulsion

A series of novel stable polyurethane emulsion with high-solid-content and low-viscosity were prepared by self-emulsification. They were prepared by the reaction of poly (tetrahydrofuran-co-oxidation of propylene) glycol (Ng210), isophorone isocyanate (IPDI) with 1,2-dihydroxy-3-propanesulfonic acid salt (DHPA) as hydrophilic chain-extending agents. Influence of the content of DHPA on properties of polyurethane emulsion and film were analyzed .The results show that obtained emulsion were multivariate distribution in particle size and were spherical particles by measurement of grain size and electron microscopic photo. It is noticed that with increasing content of DHPA and, average particles diameter of polyurethane emulsion became smaller, poly-dispersion became narrower and solid-content became bigger. when the content of DHPA is 7%, solide-concent of emulsion reaches 61%. In addition, Polyurethane emulsion are endowed stability of emulsion are good at high temperature and low temperature as well as storage stability.

Synthesis of high solid content waterborne polyurethanes with controllable bimodal particle size distribution

2014 ◽  
Vol 131 (12) ◽  
pp. n/a-n/a ◽  
Author(s):  
ShaoJun Peng ◽  
Yong Jin ◽  
Tongbing Sun ◽  
Rui Qi ◽  
BaoZhu Fan ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Solid Content ◽  
High Solid Content ◽  
High Solid ◽  
Waterborne Polyurethanes
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