Modified nano-SiO2/PU hydrophobic composite film prepared through in-situ coupling by KH550 for oil-water separation

Yuan, Zhengqiu; Wu, Yangfeng; Zeng, Jianxian; Li, Xiaoyan; Zang, Kairong; Zhou, Hu

doi:10.1007/s11356-023-25900-1

Cited by 11 publications

(2 citation statements)

References 34 publications

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“…The zinc suspension and the polyurethane suspension were rst prepared prior to fabricating the proposed coating. The zinc suspension was achieved under sonication by dispersing a certain amount of zinc oxide (1.2 g) in ethanol (15 mL), followed by adding silica (1.2 g), KH550 (0.25 g) and ammonia (2 mL) to form the suspension [19]. After a half hour's stirring, the resulting suspension was added with FAS17 (0.35 g) and then further kept stirring for 1 hour.…”

Section: Preparation Of Coating Suspensionsmentioning

confidence: 99%

A Superhydrophobic Coating with Sturdy Abrasion and Weather Resistance

Qi,

Xiao,

Zhu

et al. 2024

Preprint

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Here, we developed a lotus-leaf-resembling superhydrophobic coating with sturdy abrasion and weather resistance. By taking the sturdiness of the superhydrophobicity into account, this coating was created by incorporating a zinc-mediated superhydrophobic surface that was rough and ultraviolet-resistant into a polyurethane layer capable of strong wear resistance. By spraying the zinc-mediated perfluorosilane and a polyurethane suspension onto an aluminum flake, the lotus-leaf-resembling superhydrophobic coating was thus prepared. The resulting coating displayed the natural superhydrophobic phenomena with a contact angle of up to 157.1° and a rolling angle of 4.2°, greater or smaller by depending on the dosage of zinc. The adoption of zinc to the prepared coating not only mediated the rough surface texture but also extra granted the ultraviolet resistance. In couple with the strong wear resistance of the substrate layer, the proposed superhydrophobic coating provided the expected sturdy abrasion and weather resistance. The development of the superhydrophobic coating shares a prospect with practical applications, especially outdoor applications.

show abstract

Section: Preparation Of Coating Suspensionsmentioning

confidence: 99%

A Superhydrophobic Coating with Sturdy Abrasion and Weather Resistance

Qi,

Xiao,

Zhu

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…In this paper, KH550 is used as a silane coupling agent, which is hydrolyzed and then condensed with cellulose. Since KH550 has two hydroxyl groups after hydrolysis [8] , it can be compatible with polar and non-polar polymers [9] . At the same time, nanocellulose with different aspect ratios was selected, and CNC and CNF were added to the polypropylene matrix through silane modification to explore their mechanical properties [10] .…”

Section: Introductionmentioning

confidence: 99%

Properties of Cellulose/Polypropylene Nanocomposites Modified by KH550 Silane Coupling Agent

Cheng,

Yu,

Zhao

et al. 2023

J. Phys.: Conf. Ser.

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The effect of a 3-amino-propyltriethoxy-silane coupling agent on modified polypropylene (PP) matrix has been studied extensively. In this work, the effect of reinforced modification (KH550 of nano cellulose crystals, temporary cellulose nanofibers) on the final overall property of the PP composite system was investigated. PP was filled with 1%, 3%, 5%, and 7% silane-treated and untreated cellulose nanocrystals (CNC) and cellulose nanocrystals (CNF) at different weight ratios to prepare a uniform mixture of PP and nano cellulose fillers. Finally, the mechanics, chemistry, and morphology of the composites were studied. The mechanical properties of CNC with 3% were the highest, and the tensile strength and Young’s modulus of pure PP matrix were increased by 12% and 34%, respectively. The effect of the liquid-modified CNC fiber sample as filler was better than that of the liquid-modified CNF sample (calculated by adding 3% nano cellulose), and Young’s modulus was increased by 13% and elongation at the break by 12%.

show abstract

A Superhydrophobic Coating with Sturdy Abrasion and Weather Resistance

Qi,

Xiao,

Zhu

et al. 2024

J Inorg Organomet Polym

View full text Add to dashboard Cite

Here, we developed a lotus-leaf-resembling superhydrophobic coating with sturdy abrasion and weather resistance. By taking the sturdiness of the superhydrophobicity into account, this coating was created by incorporating a zinc-mediated superhydrophobic surface that was rough and ultraviolet-resistant into a polyurethane layer capable of strong wear resistance. By spraying the zinc-mediated per uorosilane and a polyurethane suspension onto an aluminum ake, the lotus-leaf-resembling superhydrophobic coating was thus prepared. The resulting coating displayed the natural superhydrophobic phenomena with a contact angle of up to 157.1° and a rolling angle of 4.2°, greater or smaller by depending on the dosage of zinc. The adoption of zinc to the prepared coating not only mediated the rough surface texture but also extra granted the ultraviolet resistance. In couple with the strong wear resistance of the substrate layer, the proposed superhydrophobic coating provided the expected sturdy abrasion and weather resistance. The development of the superhydrophobic coating shares a prospect with practical applications, especially outdoor applications.

show abstract

Modified nano-SiO2/PU hydrophobic composite film prepared through in-situ coupling by KH550 for oil-water separation

Cited by 11 publications

References 34 publications

A Superhydrophobic Coating with Sturdy Abrasion and Weather Resistance

A Superhydrophobic Coating with Sturdy Abrasion and Weather Resistance

Properties of Cellulose/Polypropylene Nanocomposites Modified by KH550 Silane Coupling Agent

A Superhydrophobic Coating with Sturdy Abrasion and Weather Resistance

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