Preparation and properties of waterborne-polyurethane coating materials containing conductive polyaniline

2004 ◽  
Vol 12 (3) ◽  
pp. 303-310 ◽  
Author(s):  
Ji-Yun Kwon ◽  
Eun-Young Kim ◽  
Han-Do Kim
Keyword(s):  
Waterborne Polyurethane ◽  
Polyurethane Coating ◽  
Coating Materials ◽  
Conductive Polyaniline

scholarly journals Study of the Effect of PGDA Solvent on Film Formation and Curing Process of Two-Component Waterborne Polyurethane Coatings by FTIR Tracking

Coatings ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 461 ◽  
Author(s):  
Ruitao Wang ◽  
Chunxiang Li ◽  
Zhigang Liu ◽  
Zhongping Yao ◽  
Zhijiang Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Film Formation ◽  
Waterborne Polyurethane ◽  
Hydroxyl Groups ◽  
Curing Process ◽  
Polyurethane Coating ◽  
Polyurethane Coatings ◽  
Rate Of Reaction ◽  
Two Component

Waterborne polyurethane coatings were prepared using polyhydroxyacrylate dispersion, polyisocyanate, and propylene glycol diacetate (PGDA). The rate of reaction between hydroxyl and NCO groups in film formation and curing processes was studied by FTIR. The influence of PGDA amount on film formation and curing was also studied. Results showed that PGDA content had a significant effect on the curing process. With less than 10% PGDA, the role of PGDA was more to assist diffusion of polyhydroxyacrylate and polyisocyanate resin droplets. This promoted the reaction between hydroxyl groups and NCO. With more than 10% PGDA, its effect as a solvent was more and it inhibited the reaction between hydroxyl and NCO groups. When the amount of PGDA was about 10%, the synergy between both the roles promoted the crosslinking and curing reactions. The extent of the curing reaction of NCO was more than 70% in 4 h, which was significantly higher, compared with that of about 30% without PGDA. The good applicability and appearance of the waterborne polyurethane coating prepared in this study were verified for the application to carbon fiber metro vehicles.

Mechanical Properties Improvement of Waterborne Polyurethane Coating Films After Rewetting and Drying

2009 ◽  
Vol 27 (4) ◽  
pp. 534-537 ◽  
Author(s):  
Jing He ◽  
Wei Wang ◽  
Caideng Yuan ◽  
Tong-Yi Zhang ◽  
Guohua Chen
Keyword(s):  
Mechanical Properties ◽  
Waterborne Polyurethane ◽  
Polyurethane Coating ◽  
Coating Films

UV-curable enzymatic antibacterial waterborne polyurethane coating

2016 ◽  
Vol 113 ◽  
pp. 107-113 ◽  
Author(s):  
Kai Liu ◽  
Zhiguo Su ◽  
Shida Miao ◽  
Guanghui Ma ◽  
Songping Zhang
Keyword(s):  
Waterborne Polyurethane ◽  
Polyurethane Coating ◽  
Uv Curable

Preparation and Properties of Graphene Oxide-Modified Anti-UV Waterborne Polyurethane Nanocomposites

NANO ◽  
2020 ◽  
Vol 15 (01) ◽  
pp. 2050005
Author(s):  
Xingyuan Ma ◽  
Mingrui Zhang
Keyword(s):  
Thermal Stability ◽  
Tensile Strength ◽  
Graphene Oxide ◽  
Absorption Rate ◽  
Three Dimensional ◽  
Waterborne Polyurethane ◽  
Chain Extender ◽  
Functional Coating ◽  
Coating Materials ◽  
Polyurethane Nanocomposites

In this present study, graphene oxide (GO) was used as a secondary chain extender and a functional modification assistant to fabricate a three-dimensional nanocomposite (GO-WPU) with waterborne polyurethane (WPU) through the prepolymer dispersion. The tensile strength and elastic modulus of GO-WPU with 0.2[Formula: see text]wt.% GO content, compared with those of pure WPU, increase by 170.38% and 50.9%, respectively. Even with a small amount of GO content added, the ultraviolet absorption rate significantly increased, whereas the ultraviolet transmittance decreased significantly. Other properties such as thermal stability and so on were also much enhanced. These results suggested that the functional nanocomposite GO-WPU prepared through the prepolymer dispersion will be an effective fabrication approach and have a wider scope of applications in functional coating materials and film materials.

Corrosion Protection Studies of Crude Glycerol-Based Waterborne Polyurethane Coating on Steel Substrate

2015 ◽  
Vol 163 (3) ◽  
pp. C54-C61 ◽  
Author(s):  
Yuehlien Lee ◽  
Xiaolan Luo ◽  
Shengjun Hu ◽  
Yebo Li ◽  
Rudolph Buchheit
Keyword(s):  
Corrosion Protection ◽  
Crude Glycerol ◽  
Steel Substrate ◽  
Waterborne Polyurethane ◽  
Polyurethane Coating
Sign in / Sign up

Export Citation Format

Share Document