A novel cationic waterborne polyurethane coating modified by chitosan biguanide hydrochloride with application potential in medical catheters

2020 ◽  
pp. 50290
Author(s):  
Yuxing Liu ◽  
Yalu Zou ◽  
Jing Wang ◽  
Shuo Wang ◽  
Xiaofei Liu
Keyword(s):  
Waterborne Polyurethane ◽  
Polyurethane Coating ◽  
Application Potential ◽  
Cationic Waterborne Polyurethane

Excellent Mechanical and Transparency Properties of Cationic Waterborne Polyurethane Films Modified by Boehmite Sol

2020 ◽  
Vol 305 (5) ◽  
pp. 2000021
Author(s):  
Peiting Pan ◽  
Xiaosheng Du ◽  
Jinghong Qiu ◽  
Zongliang Du ◽  
Haibo Wang ◽  
...  
Keyword(s):  
Waterborne Polyurethane ◽  
Cationic Waterborne Polyurethane

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
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