Synthesis of a fluoro-diol and preparation of fluorinated waterborne polyurethanes with high elongation at break

Yu, Yitao; Wang, Jing; Zong, Jianping; Zhang, Shuo; Deng, Qiang; Liu, Shixin

doi:10.1080/10601325.2017.1410063

Cited by 10 publications

(7 citation statements)

References 22 publications

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“…Fluororesin materials possess high thermal stability, weatherability, acid-base resistance and solution resistance [ 28 ], and are widely used in aerospace and special protective coatings and other fields [ 29 ]. At present, the commercial waterborne fluoro coatings are divided into two categories: baking film-forming coatings and room temperature film-forming coatings.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface

Yan

Yin

2021

Polymers

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In order to self-repair the cracks of waterborne coatings on Basswood at room temperature, with fluororesin and waterborne coatings embedded in the shell structure of urea formaldehyde (UF) resin, the microcapsules were fabricated via in-situ polymerization, and the effect of microcapsules on the chroma, gloss, mechanics and repair effect for waterborne coatings on wood was discussed. The results indicated that the coating effect was the most significant when the ratio value of the core materials to the shell material of microcapsules in mass was 0.75, and the agglomeration of particles was the least and the surface was the smoothest when the content of microcapsules was 1.0%. It was negative between the gloss of the film and microcapsule content. The ratio value of the core materials to the shell material in mass and the amount of microcapsules had great influence on the film hardness and adhesion, but had little effect on the impact resistance. When the ratio value of the core materials to the shell material of microcapsules in mass was 0.65 and the addition amount was 4.0–10.0%, the aging resistance of the film was improved most significantly. When the ratio value of the core materials to the shell material of microcapsules in mass was 0.65 and the addition amount was 7.0%, the overall properties of topcoat film on Basswood board was the most significant. It is for the application of fluororesin microcapsules possessing self-repairing effect in waterborne coating on Basswood board that a technical groundwork is provided by this study.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface

Yan

Yin

2021

Polymers

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“…It is important to prepare polymers with a low friction coefficient by introducing other groups. Fluorine-containing polymers have low intermolecular cohesion, low surface free energy, and low friction coefficient. − Zhou et al reported that polyimide/fluorinated graphene nanocomposite films had a lower friction coefficient of 0.3 due to the existence of fluorine. Zhao et al prepared waterborne polyurethane/fluoride polyphosphazene microsphere composites with enhanced thermal stability and friction properties, and the minimum friction coefficient was 1.07.…”

Section: Introductionmentioning

confidence: 99%

Fluorinated Polyurethane-Based Enameled Wires with a Low Friction Coefficient

Jiao

Feng²,

Jiao

et al. 2021

ACS Omega

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Fluorinated polyurethane (FPU) with a different fluorine content was prepared using perfluoropolyether glycols, poly(propylene glycol), and isophorone diisocyanate as starting materials, and 1,4-butanediol as a chain extender. The structure and molecular weight of FPU were characterized by Fourier transform infrared spectroscopy and gel permeation chromatography. A solution of FPU in xylene and cresol was then coated on copper wires using an enameled machine to prepare enameled wires. The friction coefficient and adhesion performance of the enameled wires were tested. The friction coefficient of the as-prepared enameled wires reached 0.095, which was much lower than 0.149 of the polyurethane without fluorine. FPU-based enameled wires also showed good mechanical performances and increased breakdown voltages. In addition, FPU exhibited good hydrophobic and oleophobic characterization.

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“…One is to introduce fluorine‐containing segments into the main chains of WPU. For example, Yu et al used fluoro‐diol as chain extender to prepare fluorinated WPU 17 . Levine et al prepared a kind of WPU with high fluorine content by using fluoroethylene vinyl polyether diol as raw material 18 .…”

Section: Introductionmentioning

confidence: 99%

“…For example, Yu et al used fluoro-diol as chain extender to prepare fluorinated WPU. 17 Levine et al prepared a kind of WPU with high fluorine content by using fluoroethylene vinyl polyether diol as raw material. 18 When the fluorine-containing chains were introduced into the main chains of WPU, the movement of the fluorine-containing chains were limited, which caused only a small amount of fluorine to accumulate on the surface of the film, and the hydrophobicity of the WPU film could not be effectively improved.…”

Section: Introductionmentioning

confidence: 99%

Influence of fluorine‐containing side chain on the properties of waterborne polyurethane‐urea

Zhao

Zou

et al. 2021

J of Applied Polymer Sci

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In order to prepare waterborne polyurethane with excellent water resistance and thermodynamic properties, a series of side chain fluorinated waterborne polyurethane‐urea (FWPU‐UA) was synthesized with polytetramethylene ether glycol, N‐(2‐methyl‐1,3‐propanediol‐2′‐)‐perfluoro‐1‐butanesulfonyl amine (NPBA), isophorone diisocyanate, and isophoronediamine. With the increase of NPBA content, the weight loss temperature, glass transition temperature, and tensile strength of FWPU‐UA were all improved. Gaussian fitting analysis of infrared data and density functional theory simulation proved that the introduction of fluorine side chains increased the interaction of hydrogen bonding in the FWPU‐UA. X‐ray photoelectron spectroscopy analysis indicated that the aggregation of fluorine atoms on the surface of film were caused by the migration and enrichment of fluorine side chains. Furthermore, the water resistance of polyurethane‐urea film could be significantly improved by adding a small amount of NPBA, and the seven‐day water absorption rate of polyurethane‐urea film was reduced from 30.13% to 12.55%.

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Synthesis of a fluoro-diol and preparation of fluorinated waterborne polyurethanes with high elongation at break

Cited by 10 publications

References 22 publications

Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface

Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface

Fluorinated Polyurethane-Based Enameled Wires with a Low Friction Coefficient

Influence of fluorine‐containing side chain on the properties of waterborne polyurethane‐urea

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