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

A new method to synthesize high solid content waterborne polyurethanes by strict control of bimodal particle size distribution

2015 ◽  
Vol 86 ◽  
pp. 1-10 ◽  
Author(s):  
Shao-Jun Peng ◽  
Yong Jin ◽  
Xin-Feng Cheng ◽  
Tong-Bing Sun ◽  
Rui Qi ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Solid Content ◽  
New Method ◽  
High Solid Content ◽  
High Solid ◽  
Waterborne Polyurethanes ◽  
Strict Control

Effect of the particle size distribution on the low shear viscosity of high-solid-content latexes

2004 ◽  
Vol 42 (16) ◽  
pp. 3936-3946 ◽  
Author(s):  
Marcelo Do Amaral ◽  
Steven Van Es ◽  
Jos� M. Asua
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Shear Viscosity ◽  
Solid Content ◽  
High Solid Content ◽  
High Solid ◽  
Low Shear Viscosity ◽  
Low Shear

scholarly journals The Relationship between Solid Content and Particle Size Ratio of Waterborne Polyurethane

Coatings ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 401 ◽  
Author(s):  
Jinghui Hou ◽  
Yifei Ma ◽  
Zihan Zhang ◽  
Xuanhe Yang ◽  
Muhua Huang ◽  
...  
Keyword(s):  
Particle Size ◽  
Waterborne Polyurethane ◽  
Close Packing ◽  
Solid Content ◽  
Size Ratio ◽  
Face Centered Cubic ◽  
High Solid Content ◽  
High Solid ◽  
Waterborne Polyurethanes ◽  
Particle Size Ratio

A series of high solid content carboxylic acid/sulfonic acid waterborne polyurethanes was prepared by the emulsion dispersion method. The particle size and solid content were measured. By changing the particle size of the large particles to achieve different particle size ratios, high solid content waterborne polyurethanes were obtained at specific particle size ratios. When the particle size ratio was >7, 4–5 or 2–3, the aqueous polyurethane could reach a higher solid content (more than 56%). This indicated that solid content is related to particle size distribution in high solid content waterborne polyurethane. Moreover, the corresponding three-dimensional stacked models (simple cubic accumulation, face-centered cubic accumulation, cubic close packing and hexagonal closest packing) were established.

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%.

scholarly journals Synthetic scheme to improve the solid content of biodegradable waterborne polyurethane by changing the association relationships of hydrophilic fragments

RSC Advances ◽  
2020 ◽  
Vol 10 (48) ◽  
pp. 28680-28694 ◽  
Author(s):  
Zhihui Yang ◽  
Guangfeng Wu
Keyword(s):  
Ethylene Glycol ◽  
Waterborne Polyurethane ◽  
Solid Content ◽  
Synthetic Method ◽  
High Solid Content ◽  
Poly Ethylene Glycol ◽  
High Solid ◽  
Molecular Weights ◽  
Waterborne Polyurethanes ◽  
Poly Ethylene

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.

Study on Polyurethane Dispersions with PES/PPG and High-Solid Content

2013 ◽  
Vol 864-867 ◽  
pp. 588-591 ◽  
Author(s):  
Xiao Li Wei ◽  
Fa Xing Zhang
Keyword(s):  
Particle Size ◽  
Shape Memory ◽  
Solid Content ◽  
Plastic Behavior ◽  
Mass Ratio ◽  
High Solid Content ◽  
High Solid ◽  
Shape Memory Behavior ◽  
Good Shape ◽  
Polyurethane Dispersions

A series of novel stable and high-solid-content polyurethane were prepared by self-emulsification,use PES and PPG as mixed soft segments.Influence of APAETMS content and mole ratio of PES/PPG on properties of polyurethane dispersions and films were analyzed .Results show that: the cross-linked complex were multivariate distribution in particle size. With an increase of the mass ratio of PES and PPG and content of APAETMS average particles diameter of polyurethane dispersions became bigger , poly-dispersion became wider., solid content of dispersions decrease.. It is also noticed that the high-solid-content dispersions exhibit a pseudo-plastic behavior, when the mass ratio of PES and PPG is 1:3 and content of APAETMS is 1%, the solid content of dispersions is up to 55%. The film also has a good shape memory behavior.

Preparation and Pyrolysis Kinetics of Polyester-Based Waterborne Polyurethanes with High Solid Content

2015 ◽  
Vol 27 (9) ◽  
pp. 3457-3462
Author(s):  
Jianyan Feng ◽  
Xiaomin Luo ◽  
Feifei Yang ◽  
Xuechuan Wang
Keyword(s):  
Solid Content ◽  
High Solid Content ◽  
Pyrolysis Kinetics ◽  
High Solid ◽  
Waterborne Polyurethanes ◽  
Kinetics Of

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.

Process Factors Using Centrifugal Spray Drying to Prepare Bauxite Microspheres

2011 ◽  
Vol 399-401 ◽  
pp. 828-833
Author(s):  
Xiao Su Cheng ◽  
Meng Qi Peng ◽  
Yu Fa Zhong
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Spray Drying ◽  
Average Diameter ◽  
Optimal Operation ◽  
Solid Content ◽  
Diameter Distribution ◽  
Drying Process ◽  
Process Factors

The centrifugal spray drying process of bauxite slurry was studied to investigate the influence of slurry solid content on the particle size distribution and the sphericity of the microspheres, and so was operation technology on average diameter and the sphericity of the microspheres. The optimal operation parameters are obtained to prepare high spherical microspheres bauxite with the diameter distribution of 100 μm and whose particle size distribution is narrow: the slurry solid content is 70 wt%, the dry air temperature is 250 °C, the rotation rate of spray head is 6000 rpm and the feed flow rate is 1 L/h in the experiments.

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