Bio-based cationic waterborne polyurethanes dispersions prepared from different vegetable oils

Liang, Huaping; Feng, Yajuan; Lu, Jingyi; Liu, Lingxiao; Yang, Zhuohong; Luo, Ying; Zhang, Yi; Zhang, Chaoqun

doi:10.1016/j.indcrop.2018.06.006

Cited by 109 publications

(53 citation statements)

References 48 publications

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“…Considering the properties of the obtained polymers, their use as protective or just decorative coatings on different substrates can be envisaged, as suggested in similar papers. [ 32 ] The most common used descriptions in surface science are hydrophilicity and hydrophobicity. These terms define the interaction of the boundary layer of a solid phase with liquid or vapor water and provide an idea of the surface properties of the solid.…”

Section: Resultsmentioning

confidence: 99%

“…A more closed examination of the values presented in Table 6 reveals that the contact angles change from 70.2°/67.0° for 30AESO‐70MOA sample to 86.3°/81.3° for 30AESO‐70MLA without a clear tendency. There are several factors influencing the hydrophobicity/hydrophilicity of polymeric surfaces: as higher the amount of hydrophilic groups in the polymers (i.e., ─OH polar groups contained in the pendant chains of the fatty acid derivatives) higher is the hydrophilicity [ 37,38 ] while higher crosslinking density [ 32,37 ] leads to an enhancement in the material hydrophobicity. In our case, the crosslinking density appears to be the most important factor that affects the contact angle values.…”

Section: Resultsmentioning

confidence: 99%

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Bio‐Based Polymers Obtained from Modified Fatty Acids and Soybean Oil with Tailorable Physical and Mechanical Performance

Hernández

Mosiewicki

Marcovich

2020

Euro J Lipid Sci & Tech

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The impending world oil shortage, global climate changes, and environmental pollution encourage the use of natural renewable resources to produce substitutes for petroleum-derived polymers. In this work, two series of bio-based thermoset polymers are prepared by free radical polymerization of commercially available acrylated epoxidized soybean oil (AESO) with different amounts of methacrylated oleic (MOA) or lauric (MLA) acids. The characterization of the resulting cured bio-based copolymers is performed by infrared spectroscopy, dynamic mechanical analysis, thermogravimetric analysis, and tensile tests. Experimental results show that heat resistance index, storage modulus, and crosslinking density increase as the content of AESO in the samples increases, whereas the corresponding glass transition temperatures (T g) decrease slightly. Samples containing MLA present higher tensile modulus and strength than polymers made from MOA or 100% AESO. All materials are insoluble in water and common organic solvents, show high transparency and water contact angles among 67°and 86.3°, and at least some of the samples demonstrate stress relaxation capacity. Practical Applications: The properties of the bio-based polymers obtained in this work can be adapted to different potential applications by selecting both the amount and type of constituents. Their tailorable physical and mechanical performance, malleability at elevated temperatures, moderate wettable surfaces, easy preparation, high content of bio-carbon, and environmental benefits make these novel bio-based polymers great candidates not only for structural applications but also as protective or decorative coatings.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Bio‐Based Polymers Obtained from Modified Fatty Acids and Soybean Oil with Tailorable Physical and Mechanical Performance

Hernández

Mosiewicki

Marcovich

2020

Euro J Lipid Sci & Tech

View full text Add to dashboard Cite

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“…Waterborne PU products are increasingly reducing the production of volatile organic compounds and hazardous air pollutants in the production process. [2][3][4][5] Waterborne PU possesses the characteristics of nontoxic and harmless, good film formation, cold resistance, gloss, folding resistance, adjustable performance, and so on. The unique characteristics of these waterborne PUs possess great application value.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of polymeric dyes based on self‐colored network of castor oil‐based waterborne polyurethane

Zeng

Yin

et al. 2020

J of Applied Polymer Sci

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The development of vegetable oil‐based polymers was particularly suitable for the era of increasingly scarce petroleum. Self‐colored castor oil‐based waterborne polyurethanes (PUs) were successfully synthesized based on castor oil and 1‐amino‐4‐hydroxy‐2‐(6‐hydroxyhexyl) anthraquinone (DR) as polyols. The UV–Vis spectrum showed that the addition of carboxylic acid groups make the spectrum of the PU produce the hyperchromic effect under alkaline conditions. Castor oil‐based waterborne colored PUs possessed excellent stability under weak alkaline conditions. The connection of castor oil caused the PU to constitute soft polymer networks. PU coatings on cotton fabrics possessed excellent color properties. The urethane groups in the PUs formed hydrogen bonds with the hydroxyl groups on the cotton fibers and the polymer network structure formed by the PU coating itself made the color fastness of the cotton coatings reached grade 5. With the increase of castor oil content, the degradation rate of castor oil‐based waterborne colored PU increased from 3.45% to 3.65%. This work provides a way to impart excellent color properties and fastness to PU coatings by inserting dye molecules and vegetable oils into the PU macromolecular chain.

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“…Developing waterborne polyurethanes (WPU) was undoubtedly a major technological advance that significantly reduced volatile organic compounds emissions [1,2] . Further sustainability improvements can be achieved replacing petro-based chemistry by renewable bio-based alternatives, using for instance polyols issued from abundant and low cost agro-industrial Open Access oils, and particularly of unsaturated ones [3][4][5][6][7][8][9][10][11] (Desroches et al, 2012). Such biobased and water dispersable polyurethanes (bio-WPU) for coating applications were already synthetized, inter alia, from castorbean (Ricinus communis) [12][13][14] , rapeseed (Brassica napus) [15,16] , jatropha (Jatropha curcas) [17] soybean (Glycine max) [18,19] and linseed (Linum usitatissimum) [20] functionalized oils.…”

Section: Introductionmentioning

confidence: 99%

UV-mediated Thiol-ene Polyol Functionalization for Synthesis of Biobased Waterborne Polyurethanes

Lazko

Poussard

Mariage

et al. 2020

Advanced Materials Science and Technology

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Developing waterborne polyurethane coatings from biobased polyols represents an interesting alternative, allowing at the same time to increase the use of sustainable renewable raw materials and to reduce volatile organic compounds emissions. In this work, biobased Veopur polyol was first functionalized with mercaptopropionic acid using solvent-free UV-mediated thiol-ene reaction performed in bulk. Grafted carboxylic moieties were then neutralized by triethylamine in order to obtain the required amphiphilic behavior. In the final step, functionalized water dispersible polyol was polymerized with water soluble polyisocyanate to form waterborne polyurethane (WPU). The influence of key-process parameters on grafting efficiency was investigated by iodometric titration, Fourier-transform infrared spectroscopy and proton nuclear magnetic resonance. Particle size measurements and stress-strain tests were carried out to characterize WPU water dispersions and corresponding materials, respectively.

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Bio-based cationic waterborne polyurethanes dispersions prepared from different vegetable oils

Cited by 109 publications

References 48 publications

Bio‐Based Polymers Obtained from Modified Fatty Acids and Soybean Oil with Tailorable Physical and Mechanical Performance

Bio‐Based Polymers Obtained from Modified Fatty Acids and Soybean Oil with Tailorable Physical and Mechanical Performance

Synthesis of polymeric dyes based on self‐colored network of castor oil‐based waterborne polyurethane

UV-mediated Thiol-ene Polyol Functionalization for Synthesis of Biobased Waterborne Polyurethanes

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