Structure and properties of polyimide fiber prepared from polyamic acid solution with high solid content and low viscosity

2021 ◽  
pp. 131628
Author(s):  
Daolei Lin ◽  
Ming Jiang ◽  
Runyue Li ◽  
Shengli Qi ◽  
Dezhen Wu
Keyword(s):  
Acid Solution ◽  
Solid Content ◽  
Structure And Properties ◽  
High Solid Content ◽  
Polyamic Acid ◽  
High Solid ◽  
Low Viscosity ◽  
Polyimide Fiber

Preparation of M-AlN Suspensions for Aqueous Gelcasting

2012 ◽  
Vol 512-515 ◽  
pp. 293-296 ◽  
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.

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.

Control of high solid content yttria slurry with low viscosity for gelcasting

2006 ◽  
Vol 408-412 ◽  
pp. 533-537 ◽  
Author(s):  
Chika Takai ◽  
Masashi Tsukamoto ◽  
Masayoshi Fuji ◽  
Minoru Takahashi
Keyword(s):  
Solid Content ◽  
High Solid Content ◽  
High Solid ◽  
Low Viscosity

scholarly journals PREPARATION AND PROPERTIES OF HIGH-SOLID CONTENT AND LOW-VISCOSITY POLYURETHANE MICROEMULSIONS

2009 ◽  
Vol 009 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Xiaoli WEI ◽  
Faxing ZHANG ◽  
Zhongliang XIAO ◽  
Xiaoqing WU
Keyword(s):  
Solid Content ◽  
High Solid Content ◽  
High Solid ◽  
Low Viscosity

A novel and controllable route for preparing high solid-content and low-viscosity poly(acrylamide-co-acrylic acid) aqueous latex dispersions

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56645-56652 ◽  
Author(s):  
Qianping Ran ◽  
Zhen Huang ◽  
Xin Shu ◽  
Yong Yang ◽  
Zhiyong Zhang
Keyword(s):  
Acrylic Acid ◽  
Solid Content ◽  
Seed Particle ◽  
High Solid Content ◽  
High Solid ◽  
Low Viscosity ◽  
Latex Dispersions ◽  
Novel Strategy ◽  
Poly Acrylamide

High solid-content and low-viscosity poly(acrylamide-co-acrylic acid) aqueous latex dispersions were obtained through a novel strategy, which involves swelling followed by diffusion and redox initialized polymerization inside the seed particle.

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