A two-step hydrophobic fabrication of melamine sponge for oil absorption and oil/water separation

Gao, Huimin; Sun, Peng; Zhang, Yu; Zeng, Xiaobo; Wang, Dawei; Zhang, Yong; Wang, Wei; Wu, Jiangyu

doi:10.1016/j.surfcoat.2018.02.022

Cited by 79 publications

(29 citation statements)

References 35 publications

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“…Moreover, two small peaks at 2800–2900 cm −1 are attributed to CH stretching. These groups of absorption bands verify the chemical composition of the melamine . Characteristic peaks of pure polymers, ZB and melamine were realized for J polymer composite when the FTIR spectrum was investigated.…”

Section: Resultsmentioning

confidence: 57%

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Arslan

Dilsiz

2020

J of Applied Polymer Sci

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In this study, mixing petroleum-based low-density polyethylene (LDPE) with biodegradable poly(lactic acid) (PLA) is used as polymer matrix. Boron compounds, metal hydroxides, melamine (MLM), ammonium polyphosphate (APP), and pentaerythritol (PER) were used as reinforcement materials to improve flame resistance of polymer matrix. The composite materials were characterized by Fourier transform infrared spectroscopy, limiting oxygen index (LOI), thermogravimetric analysis, mechanical test, and scanning electron microscopy analyses. The LOI analysis showed that for samples, which included MLM, APP, and PER, the LOI values were dramatically improved. Especially, the LOI value of sample Q (LDPE80/PLA20/APP30/PER15/MLM15/ZB3) was enhanced about 95.17% compared to polymer mixing.

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Section: Resultsmentioning

confidence: 57%

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Arslan

Dilsiz

2020

J of Applied Polymer Sci

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“…Surface wettability is the fundamental property of 3D-PMs for the applications in oil/water separation. Either hydrophilic or hydrophobic 3D-PMs cannot be directly used because both oil and water can wet and pass through the porous structure [62,67,68,69]. Thus, developing the 3D-PMs with selectively oil/water separation property is critical and can be achieved by creating special wettability [60].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…3D-PMs with superhydrophobicity-superoleophilicity repel water while it can be wetted by oils allowing the passing through of oils to remove oil from water. Nowadays, three types of superhydrophobic-superoleophilic 3D-PMs e.g., sponge, foams and aerogels have been developed to adsorb light oil from water surface [67,99,122,123]. The adsorption capacity of oils can reach as high as around more than one hundred times of the original weight of 3D-PMs and the separation efficiency can reach to 99% [124].…”

Section: Fabrication Special-wettable Oil/water Separation Three Dmentioning

confidence: 99%

“…Commercial sponge/foams (polyurethane, melamine, polyethylene, polystyrene, poly(melamine formaldehyde)) are inexpensive porous materials with high porosity (typically > 95%), low density (<18 mg/cm 3 ), regular skeleton, elasticity, high mechanical property and chemical stability which are widely used in industry and daily life such as, thermal insulation, sound absorption and shock absorption [67,125,140]. These outstanding properties of commercial sponge/foam enable they can be used for oil/separation after proper modifications.…”

Section: Fabrication Special-wettable Oil/water Separation Three Dmentioning

confidence: 99%

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Superwetting Polymeric Three Dimensional (3D) Porous Materials for Oil/Water Separation: A Review

2019

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Oil spills and the emission of oily wastewater have triggered serious water pollution and environment problems. Effectively separating oil and water is a world-wide challenge and extensive efforts have been made to solve this issue. Interfacial super-wetting separation materials e.g., sponge, foams, and aerogels with high porosity tunable pore structures, are regarded as effective media to selectively remove oil and water. This review article reports the latest progress of polymeric three dimensional porous materials (3D-PMs) with super wettability to separate oil/water mixtures. The theories on developing super-wetting porous surfaces and the effects of wettability on oil/water separation have been discussed. The typical 3D porous structures (e.g., sponge, foam, and aerogel), commonly used polymers, and the most reported techniques involved in developing desired porous networks have been reviewed. The performances of 3D-PMs such as oil/water separation efficiency, elasticity, and mechanical stability are discussed. Additionally, the current challenges in the fabrication and long-term operation of super-wetting 3D-PMs in oil/water separation have also been introduced.

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“…Changing the wetting properties of the material surface changes the selective adsorption of water-oil. A variety of oil-adsorbing and hydrophobic materials for oil-water separation have been prepared and encouraging results were obtained [10][11][12]. In addition, there are many 3D porous materials with hydrophobic and oil adsorption capacity that have been successfully applied to oil-water separation, but their practical applications are still limited by complex preparation methods and high raw material costs [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Magnetic and Hydrophobic Composite Polyurethane Sponge for Oil–Water Separation

Peng

Xi-quan

et al. 2020

Applied Sciences

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Crude oil spills from offshore oil fields will cause serious pollution to the marine ecological environment. Many 3D porous materials have been used for oil–water separation, but they cannot be widely used due to complex preparation processes and expensive preparation costs. Here, a facile and cheap approach to disperse expanded graphite (EG), stearic acid, and Fe3O4 magnetic nanoparticles on the skeleton surface of polyurethane (PU) sponge to prepare the magnetic and hydrophobic composite polyurethane sponge for oil–water separation. The results show that the composite PU sponge had a strong oil absorption capacity for various oils, the oil adsorption capacities has reached 32–40 g/g, and it has become more hydrophobic. The addition of Fe3O4 magnetic nanoparticles endowed the sponge with magnetic responsivity, and the composite PU sponge still had a strong oil adsorption capacity after several adsorbing-squeezing cycles. The magnetic and hydrophobic composite polyurethane sponge is a very promising material for practical oil adsorption and oil–water separation.

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A two-step hydrophobic fabrication of melamine sponge for oil absorption and oil/water separation

Cited by 79 publications

References 35 publications

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Flame resistant properties of LDPE/PLA blends containing halogen‐free flame retardant

Superwetting Polymeric Three Dimensional (3D) Porous Materials for Oil/Water Separation: A Review

Magnetic and Hydrophobic Composite Polyurethane Sponge for Oil–Water Separation

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