Effect of the Polyols Content on the Properties of the Waterborne Polyurethane

2017 ◽  
pp. 875-881
Author(s):  
Xin Wang ◽  
Fuqiang Chu
Keyword(s):  
Waterborne Polyurethane

Superelastic and flexible 3D printed waterborne polyurethane/cellulose nanofibrils structures

2021 ◽  
pp. 102107
Author(s):  
Yuan Chen ◽  
Zhengyang Yu ◽  
Hale Oguzlu ◽  
Jungang Jiang ◽  
MiJung Cho ◽  
...  
Keyword(s):  
Cellulose Nanofibrils ◽  
Waterborne Polyurethane ◽  
3D Printed

Synthesis and properties of CO2 copolymer-based waterborne polyurethane with high solid content

2021 ◽  
Vol 28 (7) ◽  
Author(s):  
Wenqi Xian ◽  
Jie Yuan ◽  
Zhengbin Xie ◽  
Wei Ou ◽  
Xiaoxuan Liu ◽  
...  
Keyword(s):  
Waterborne Polyurethane ◽  
Solid Content ◽  
High Solid Content ◽  
High Solid

UV-curable waterborne polyurethane coatings: A state-of-the-art and recent advances review

2021 ◽  
Vol 154 ◽  
pp. 106156
Author(s):  
Lucas Dall Agnol ◽  
Fernanda Trindade Gonzalez Dias ◽  
Heitor Luiz Ornaghi ◽  
Marco Sangermano ◽  
Otávio Bianchi
Keyword(s):  
State Of The Art ◽  
Waterborne Polyurethane ◽  
Uv Curable ◽  
Polyurethane Coatings ◽  
Recent Advances

Nanocomposites based on Waterborne Polyurethane Matrix and Fe 3 O 4 Nanoparticles: Synthesis and Characterization

2021 ◽  
Author(s):  
Cintia Meiorin ◽  
Selina L. Scherzer ◽  
Verónica Mucci ◽  
Daniel G. Actis ◽  
Pedro Mendoza Zelis ◽  
...  
Keyword(s):  
Waterborne Polyurethane ◽  
Synthesis And Characterization ◽  
Nanoparticles Synthesis ◽  
Polyurethane Matrix

scholarly journals Development of FGF-2-loaded electrospun waterborne polyurethane fibrous membranes for bone regeneration

2020 ◽  
Author(s):  
Chi Zhang ◽  
Jianxiong Wang ◽  
Yujie Xie ◽  
Li Wang ◽  
Lishi Yang ◽  
...  
Keyword(s):  
Bone Regeneration ◽  
Periodontal Regeneration ◽  
Waterborne Polyurethane ◽  
Related Factors ◽  
Positive Meaning ◽  
Chain Extenders ◽  
Biomimetic Membrane ◽  
Fibrous Membranes ◽  
Green Chemical Synthesis ◽  
Gbr Membrane

Abstract Guided bone regeneration (GBR) membrane has been used to improve functional outcomes for periodontal regeneration. However, few studies have focused on the biomimetic membrane mimicking the vascularization of the periodontal membrane. This study aimed to fabricate waterborne polyurethane (WPU) fibrous membranes loaded fibroblast growth factor-2 (FGF-2) via emulsion electrospinning, which can promote regeneration of periodontal tissue via the vascularization of the biomimetic GBR membrane. A biodegradable WPU was synthesized by using lysine and dimethylpropionic acid as chain extenders according to the rule of green chemical synthesis technology. The WPU fibers with FGF-2 was fabricated via emulsion electrospinning. The results confirmed that controlled properties of the fibrous membrane had been achieved with controlled degradation, suitable mechanical properties and sustained release of the factor. The immunohistochemical expression of angiogenic-related factors was positive, meaning that FGF-2 loaded in fibers can significantly promote cell vascularization. The fiber scaffold loaded FGF-2 has the potential to be used as a functional GBR membrane to promote the formation of extraosseous blood vessels during periodontal repairing.

scholarly journals Established an eco-friendly cotton fabric treating process with enhancing anti-wrinkle performance

2021 ◽  
Vol 16 ◽  
pp. 155892502110034
Author(s):  
Xiongfang Luo ◽  
Pei Cheng ◽  
Wencong Wang ◽  
Jiajia Fu ◽  
Weidong Gao
Keyword(s):  
Tensile Strength ◽  
Citric Acid ◽  
Cotton Fabric ◽  
Crosslinking Agent ◽  
Cost Effective ◽  
Waterborne Polyurethane ◽  
Cotton Fabrics ◽  
Wrinkle Resistance ◽  
Before And After ◽  
Strength Retention

This study establishes an eco-friendly anti-wrinkle treating process for cotton fabric. Sodium hydroxide-liquid ammonia pretreatment followed by 6% (w/w) PU100 adding citric acid pad-cure-dry finishing. In this process, citric acid (CA) was used as the fundamental crosslinking agent during finishing because it is a non-formaldehyde based, cost-effective and well wrinkle resistance agent. Environmental-friendly waterborne polyurethane (WPU) was used as an additive to add to the CA finishing solution. Six commercial WPUs were systematically investigated. Fabric properties like wrinkle resistance, tensile strength retention, whiteness, durable press, softness, and wettability were well investigated. Fourier transform infrared spectra and X-ray diffraction spectra were also measured and discussed before and after adding waterborne polyurethane. Tentative mechanism of the interaction among the WPU, CA, and modified cotton fabrics is provided. The effect of cotton fabric pretreatment on fabric performance was also investigated. After the eco-process’s treatment, the fabric wrinkle resistant angle was upgraded to 271 ± 7°, tensile strength retention was maintained at 66.77% ± 3.50% and CIE whiteness was elevated to 52.13 ± 3.21, which are much better than the traditional CA anti-wrinkle finishing based on mercerized cotton fabrics. This study provides useful information for textile researchers and engineers.

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