Preparation of SiO2-decorated GO sheets and their influences on the properties of castor oil-based polyurethane coating film

Shu, Bo; Liu, Zhilang; Liu, Zhao‐Qing; Li, Pengsong; Li, Xin; Yang, Shaoheng; Chen, Huangwei; Liu, Jiqiang; Yang, Zhuohong; Yang, Hu

doi:10.1016/j.porgcoat.2022.107382

Cited by 8 publications

(11 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The GO‐SiO 2 only generates few precipitations and can remain stable, because the SiO 2 NPs assembled on the GO surface cause steric hindrance between the GO slice layers. Thus, GO‐SiO 2 is well dispersed in EP 34 . The dispersion of GO and GO‐SiO 2 in EP is visually observed by an optical microscope.…”

Section: Resultsmentioning

confidence: 89%

“…Thus, GO-SiO 2 is well dispersed in EP. 34 The dispersion of GO and GO-SiO 2 in EP is visually observed by an optical microscope. In Figure 7D, the filler containing 0.1 wt% GO presents a lot of clumps in EP, and GO in Figure 7D demonstrates a propensity to aggregate in EP owing to its high specific surface area.…”

Section: Dispersion Of Go-sio 2 Compound In Epoxy Resin Solventmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of GO‐SiO₂ three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Hao,

Zhang,

Liu

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

In this research, mercapto‐anchoring graphene oxide (GO) and epoxy‐anchoring SiO2 nanoparticles (NPs) were assembled by mercapto‐epoxy click chemistry to form three‐dimensional (3D) point‐plane structure nanomaterials (GO‐SiO2), and epoxy resin (EP) composites were prepared using the auxiliary thermal blending method. The relationships among surface interfacial interaction, dispersion, and mechanical properties of composites were systematically investigated. The Research finding shows that SiO2 NPs covalently bonding with GO increases interface compatibility and dispersion, which explains epoxy composite strengthening. Compared to epoxy resin, 0.1 wt% GO‐SiO2/EP composite has 38.65%, 36.15%, 44.64%, and 61.61% higher tensile strength, flexural strength, flexural modulus, and impact strengths. The enhancement mechanism of GO‐SiO2 toward EP was analyzed.

show abstract

Section: Resultsmentioning

confidence: 89%

Section: Dispersion Of Go-sio 2 Compound In Epoxy Resin Solventmentioning

confidence: 99%

Preparation of GO‐SiO₂ three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Hao,

Zhang,

Liu

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…Various strategies have been introduced by the researchers to overcome these challenges in epoxy/GO nanocomposite research. 4 The most accepted method is the covalent modification of GO sheets, 5 as well as the hybrid approach of GO sheets with a secondary nanostructure. 5 Among these methods, the decoration of inorganic particles on GO sheets is more popular among the research community.…”

Section: Introductionmentioning

confidence: 99%

“…4 The most accepted method is the covalent modification of GO sheets, 5 as well as the hybrid approach of GO sheets with a secondary nanostructure. 5 Among these methods, the decoration of inorganic particles on GO sheets is more popular among the research community. Decoration of GO sheets with inorganic nanostructures can be done with or without chemical modification.…”

Section: Introductionmentioning

confidence: 99%

Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

George,

Vijayan P,

Ponçot

et al. 2024

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Tuning the interfacial interaction between the filler and the matrix is essential to fabricate high-performance polymer nanocomposites. Herein, a hybrid nanofiller based on graphene oxide (GO) and nanosilica (SiO2) was prepared via electrostatic charge attraction. Amine-functionalized nanosilica was decorated over the surface of the GO sheet via simple aqueous mixing. The hybrid nanofiller approach of GO with nanosilica reduces the cohesive force between the GO sheets, facilitating better dispersion and thereby enhancing the properties of epoxies (preventing GO–GO and silica–silica agglomeration). The high-resolution transmission electron microscopy showed that the d spacing between GO sheets in the GO-SiO2 hybrid nanofiller (0.32 ± 0.70 nm) was higher than that in pristine GO. The synergistic effect of GO and nanosilica in the GO-SiO2 hybrid nanofiller of varying content (0.25 to 0.75 phr) as a reinforcement for advancing the properties of epoxies was monitored systematically. The effect of the GO-SiO2 hybrid nanofiller on the chain confinement, structure, and mechanics was studied by dynamic mechanical analysis. It was found that the hybrid nanofiller incorporation improved the filler matrix interaction and, thereby, the mechanical properties and glass transition temperature (T g) of epoxy. Epoxy chains near the vicinity of the hybrid filler have become immobilized because of the strong filler-matrix interaction and form a confined zone around the filler-matrix interface. The quantitative measurement of the immobilized epoxy chains formed by the hybrid nanofiller was determined from the tan delta curve. A maximum enhancement in the storage modulus, T g, impact strength, and other theoretical parameters was observed for epoxy nanocomposite with 0.5 phr loading of the hybrid nanofiller.

show abstract

“…However, the structure of WPU contains many hydrophilic and polar groups, which can easily form hydrogen bonds with absorbed water molecules, leading to poor water resistance and fade-out of the film. − In addition, water is used as the dispersion medium of WPU, and the drying speed of the film is slow . The low molecular weight and cross-linking density of WPU hinder the compactness of the film, making the solvent resistance of the film poor. − Thus, WPU needs to be modified.…”

Section: Introductionmentioning

confidence: 99%

Acrylate-Modified Aqueous Polyurethane Based on Oxime–Carbamate Structure with Transparent, Healable, and Fluorescent Properties

Bai

Liu

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Acrylate-modified aqueous polyurethane has become a widely used material due to its good physical and versatile chemical properties. However, owing to damage resulting from daily use, which often limits polymer performance, it is important to prepare a transparent and repairable polyurethane material. In this work, an acrylate-modified aqueous polyurethane based on the reversible structure of oxime–carbamate of butanedione oxime (POU) was prepared. The visible-light transmittance of the POU film could exceed 70%; its tensile strength and elongation at break could reach 3.0 MPa and 493%, respectively, and the POU film had a tensile strength of 3.9 MPa and elongation at break of 589% after repair. In addition, the POU has adjustable fluorescence properties, which makes this material suitable for potential application in the field of information encryption.

show abstract

Preparation of SiO2-decorated GO sheets and their influences on the properties of castor oil-based polyurethane coating film

Cited by 8 publications

References 29 publications

Preparation of GO‐SiO₂ three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Preparation of GO‐SiO₂ three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

Acrylate-Modified Aqueous Polyurethane Based on Oxime–Carbamate Structure with Transparent, Healable, and Fluorescent Properties

Contact Info

Product

Resources

About

Preparation of SiO2-decorated GO sheets and their influences on the properties of castor oil-based polyurethane coating film

Cited by 8 publications

References 29 publications

Preparation of GO‐SiO2 three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Preparation of GO‐SiO2 three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Insights into the Synergistic Effect of Graphene Oxide/Silica Hybrid Nanofiller for Advancing the Properties of Epoxy Resin

Acrylate-Modified Aqueous Polyurethane Based on Oxime–Carbamate Structure with Transparent, Healable, and Fluorescent Properties

Contact Info

Product

Resources

About

Preparation of GO‐SiO₂ three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property

Preparation of GO‐SiO₂ three‐dimensional point‐plane nanomaterials and enhancement of epoxy resin mechanical property