Preparation and properties of waterborne bio-based polyurethane/siloxane cross-linked films by an in situ sol–gel process

Fu, Changqing; Hu, Xiuzheng; Yang, Zhe; Shen, Liang; Zheng, Zitong

doi:10.1016/j.porgcoat.2015.02.008

Cited by 54 publications

(19 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The addition of fillers carrying multiple − OH groups to the WPU matrix also provides multifunctional cross-links that further increase the new formulations' strength [172][173][174]. Crosslinking WPUs containing siloxane bonding, for example, have shown a reinforcement effect on thermal and surface properties of UV-WPU systems [175,176]. Combining these approaches has shown to be an efficient technology for improving the performance of WPU systems [177].…”

Section: Discussionmentioning

confidence: 99%

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

Agnol

Dias

Ornaghi

et al. 2021

Progress in Organic Coatings

View full text Add to dashboard Cite

Waterborne polyurethane coatings prepared by UV-induced photoreactions (UV-WPU) are becoming very attractive due to the increasingly stringent environmental demands. They were developed to replace solventbased polyurethanes in the coatings of wood, paper, plastics, metal, and glass, mainly because of their good physicochemical, rheological, and optical properties. Several UV-WPU formulations have been tested over the years, making their research substantial. However, no valuable review of this literature, focusing on the significant influencing factors in UV-WPU's manufacture, is available to date. This work aims to answer specific questions about the state of these materials' art, such as: "which monomers have been used most in UV-WPU synthesis?", "what type of photo-initiator has promoted the most efficient curing of the material?", "what additives or particles have been tested for composite UV-WPUs?", "which applications have UV-WPUs been directed to?", "what adaptations and technologies have already been tested to overcome the challenges of the process?", among others. As a result of a systematized bibliographic search in four databases, considering the period from January 2000 to July 2020, a total of one hundred and thirty-eight distinct and relevant articles on UV-WPUs were found. From this study, we hope to present a scientific source on the current state-of-the-art of UV-WPU synthesis, providing new combinations of raw materials and intelligent solutions, thus making material and industrial engineers able to mitigate the inconveniences of the process.

show abstract

Section: Discussionmentioning

confidence: 99%

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

Agnol

Dias

Ornaghi

et al. 2021

Progress in Organic Coatings

View full text Add to dashboard Cite

show abstract

“…Following the strategy of producing ecofriendly materials, the use of plant oil based diols and polyols, prepared from triglycerides or from fatty acids, in the formulation of PUs and in particular of WBPU has been addressed . The use of plant oils as raw materials offers the advantages of world wide availability and competitive low price.…”

Section: Introductionmentioning

confidence: 99%

Waterborne polyurethane nanocomposites based on vegetable oil and microfibrillated cellulose

Hormaiztegui

Mucci

Santamaria‐Echart

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

This work analyzes the differences in the final properties of two waterborne polyurethanes (WBPU) prepared with two macrodiols of different chemical structure, but similar molecular weight, as well as the variations caused by incorporating low percentages of microfibrillated cellulose nanocrystals. One of the polyurethanes was based on a synthetic but biodegradable precursor (polycaprolactone diol, PCL) and a second one based on a bio‐based macrodiol derived from castor oil (CO1). The bio‐based material presented higher mechanical properties at room temperature than the synthetic one, with the Young's modulus (MPa) ranging from 2.23 ± 0.09 to 84.88 ± 0.96 for the PCL and bio‐based WBPUs, respectively. Additionally, the PCL‐based WBPU showed to be more sensitive to the incorporation of cellulose than the bio‐based WBPU, and it also suffered changes during time due to delayed crystallization. The behavior of the two systems were compared and related to the different structure of the macrodiols that led to different interfacial interactions. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44207.

show abstract

“…[26][27][28] Polysiloxane, as a so segment, modied cationic aqueous polyurethane, changing the structure of polyurethane and resulting in an increase in the polyurethane particle sizes. 29 The size distributions of SiCWPU1 emulsions are shown in Fig. 2a.…”

Section: Characterization Of the Water Dispersion Properties Of Sicwpmentioning

confidence: 99%

“…With the addition of siloxane, white particles appeared on the surfaces of the lms, because the introduction of siloxane increased the cross-linking density. 29 As the PDMS content increased, the molecules tended to agglomerate to form particles. Fig.…”

Section: Scanning Electron Microscopy Assaysmentioning

confidence: 99%

The study of cationic waterborne polyurethanes modified by two different forms of polydimethylsiloxane

Pan

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

Preparation and properties of waterborne bio-based polyurethane/siloxane cross-linked films by an in situ sol–gel process

Cited by 54 publications

References 27 publications

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

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

Waterborne polyurethane nanocomposites based on vegetable oil and microfibrillated cellulose

The study of cationic waterborne polyurethanes modified by two different forms of polydimethylsiloxane

Contact Info

Product

Resources

About