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Waterborne Polyurethanes for Corrosion Protection
2021Corrosion is a worldwide problem causing the loss of hundreds of thousands of dollars every year. Throughout this chapter, many topics regarding materials, procedures, synthetic routes, and mechanisms of waterborne polyurethane and their composites for corrosion protection are explored.
Felipe M. de Souza, Ram K. Gupta
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Waterborne Polyurethanes in Sustainability Development
2021The strive for more efficient materials, larger production, and diminish of cost along with the increasing environmental and health concerns led the scientific community and industry to shift gears to craft a more sustainable approach for the future. This chapter discusses the importance of waterborne polyurethanes as sustainable polymers that present ...
Felipe M. de Souza, Ram K. Gupta
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Waterborne polyurethanes: A review
Journal of Dispersion Science and Technology, 2017Waterborne polyurethanes can be formulated into coatings and adhesives, containing little or no co-solvent, that form films at ambient temperature.
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Microcrystalline Cellulose Modified Waterborne Polyurethane
Materials Performance, 2012Waterborne polyurethane (WPUR) was synthesized. Micro crystalline cellulose was used to prepare a series of modified WPUR. The mechanical properties of modified WPUR films showed higher tensile strength and elongation than the unmodified one. The water resistance of films was also greatly enhanced after modification.
Sigang Zhang +4 more
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Applications of Waterborne Polyurethanes Foams
2021Polyurethane foams are one of the versatile commercial materials ranging from solvent-based polyurethane foams to waterborne polyurethane foams (WPU). Waterborne polyurethanes are eco-friendly and exhibit excellent mechanical characteristics such as strength, flexibility, ease of moulding into required shapes, durability, lightweight and resistance to ...
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Surface modification of waterborne polyurethane
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2006Fluorinated urethane oligomers (SMAs) having repeat unit identical to the hard segment of base polyurethane (PU) have been synthesized and blended with base PU prior to dispersion. XPS and static contact angle measurements showed that surfaces of dispersion cast film are significantly enriched with SMA although SMA and base PU were miscible in bulk ...
Ho Young Jeong +2 more
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Waterborne Polyurethanes for Biomedical Applications
2021Over the years, there are numerous benefits derived from water borne polyurethane which entails medical devices (vascular prostheses, catheters, pacemakers), reconstructive surgery materials (breast implants, wound dressings, maxillofacial prosthetics, several other tissue implants) obstetrics and gynecology plus reproductive biology (contraceptive ...
Charles Oluwaseun Adetunji +4 more
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Waterborne polyurethanes and their properties
Journal of Polymer Science Part A: Polymer Chemistry, 1996Anionomer-type waterborne polyurethanes (PUs) were obtained from poly(β-methyl-δ-valerolactone) glycol (PMVL) and isophorone diisocyanate, following a prepolymer mixing process. The soft-hard segment phase separation in response to the variations of composition and structure of PU has been studied from the dynamic mechanical measurements of the ...
Byung Kyu Kim, Jong Cheol Lee
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Waterborne anionomeric polyurethane–ureas from functionalized fluoropolyethers
Journal of Applied Polymer Science, 2004AbstractA family of anionomeric segmented polyurethane–ureas made from α‐ω dimethylol‐terminated perfluoropolyethers (Mn = 1000–2000), isophorone diisocyanate, dimethylol propionic acid, and ethylenediamine was obtained in form of stable aqueous dispersions. The dispersions were characterized by viscometry and dynamic laser light scattering.
TURRI, STEFANO +2 more
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Hybrids of colloidal silica and waterborne polyurethane
Journal of Colloid and Interface Science, 2006Waterborne polyurethane (WPU) was synthesized and followed by adding colloidal silica to prepare WPU-silica hybrids. The silica content in the hybrid thin films was varied from 0 to 50 wt%. The experimental results revealed that the viscosity of these hybrid solutions increased with increasing silica content and resulted in the aggregation of silica ...
Chien-Hsin, Yang +3 more
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