Preparation and Properties of High Solid Content and Low Viscosity Waterborne Polyurethane—Acrylate Emulsion with a Reactive Emulsifier

A synthetic method was developed to prepare biodegradable waterborne polyurethanes (BHPUs) with a high solid content by introducing different molecular weights of poly(ethylene glycol) (PEG) into poly(ε-caprolactone) (PCL)-based polyurethanes.

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Preparation of M-AlN Suspensions for Aqueous Gelcasting

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.512-515.293 ◽

2012 ◽

Vol 512-515 ◽

pp. 293-296 ◽

Cited By ~ 1

Author(s):

Jian Guo ◽

Tai Qiu ◽

Jian Yang ◽

Yong Bao Feng

Keyword(s):

Aluminum Nitride ◽

Rheological Behavior ◽

Ph Value ◽

Solid Content ◽

Nitride Powder ◽

High Solid Content ◽

High Solid ◽

Low Viscosity ◽

Effects Of Ph ◽

Surface Modified

M-AlN (surface modified aluminum nitride powder) suspensions for aqueous gelcasting were prepared Using NH4PAA as dispersant. The effects of pH value, NH4PAA amount and solid content on the rheological behavior of M-AlN suspensions were investigated. The results showed that low viscosity M-AlN aqueous suspensions with high solid content up to 55vol.% were obtained under the condition that the amount of NH4PAA was 0.9 wt. % of M-AlN powder, and pH value was about at 6.8. In spite of this, these suspensions still show a viscosity lower than 0.12 Pa•s at 100s-1, suggesting a good fluidity which can satisfy the requirement of gelcasting.

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Synthesis and characterization of poly(propylene carbonate) glycol-based waterborne polyurethane with a high solid content

Progress in Organic Coatings ◽

10.1016/j.porgcoat.2018.05.003 ◽

2018 ◽

Vol 122 ◽

pp. 38-44 ◽

Cited By ~ 13

Author(s):

Le Ma ◽

Lina Song ◽

Heng Wang ◽

Leiqiao Fan ◽

Baohua Liu

Keyword(s):

Propylene Carbonate ◽

Waterborne Polyurethane ◽

Solid Content ◽

Synthesis And Characterization ◽

High Solid Content ◽

High Solid ◽

Poly Propylene

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.548-549.57 ◽

2014 ◽

Vol 548-549 ◽

pp. 57-60 ◽

Cited By ~ 1

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.

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