Manipulating surface wettability and oil absorbency of diatomite depending on processing and ambient conditions

Özen, İlhan; Şimşek, Süleyman; Okyay, Gamze

doi:10.1016/j.apsusc.2015.01.149

Cited by 24 publications

(15 citation statements)

References 48 publications

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“…It was bent and formed network clearly at 0.8 s. Based on our previous works, the coarser samples with binary microstructures would strengthen the hydrophilic, however, sample 850 µm absorbed water droplets beyond 3.0 s. It was also found that the coarser the sample was, the longer the water droplet absorbed. So it was deduced that the hydrophilicity of the KSAP samples were enhanced for the finer samples, which might be associated with the increase of the specific surface area and the osmotic pressure …”

Section: Resultsmentioning

confidence: 83%

Effect of aggregate size on liquid absorption characteristics of konjac glucomannan superabsorbent

Yang

Zhang

Yang

et al. 2017

J of Applied Polymer Sci

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In this article, four kinds of konjac glucomannan based superabsorbent polymers (KSAPs) with different aggregate sizes were obtained by sieving the KSAP powders manually. They were characterized by scanning electronic microscopy (SEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), and optical contact angle (OCA), and the effects of aggregate size on liquid absorption characteristics of KSAP were studied in detail. The results show that the coarse KSAP particles were aggregated by many microspheres, while the fine particles were well dispersed with 50-150 mm particle size. OCA dynamic images showed the enhanced hydrophilicity for the finer particles. The liquid absorption measurements demonstrated that water and physiological saline absorption velocity of KSAP increased for the finer particles, while their ultimate water holding capacity decreased accordingly. The liquid absorption capacity of the finest sample (75 mm) could reach its maximum value (332.5 6 5.6 g/g) in 0.5 min, while the coarsest sample (850 mm) reached the maximum value (532.5 6 1.2 g/g) in 16 min. The reason for this phenomenon was discussed, and a new model was proposed to explain it. We believe that the results of this article would be meaningful in application of KSAP as superabsorbent materials.

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Section: Resultsmentioning

confidence: 83%

Effect of aggregate size on liquid absorption characteristics of konjac glucomannan superabsorbent

Yang

Zhang

Yang

et al. 2017

J of Applied Polymer Sci

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“…In recent years, nano composite materials used for oil removal can be broadly divided into two categories: nano hierarchical structure for the purpose of oil-water separation, such as stainless steel mesh [16], nano film [17,18], foam [19][20], etc. [21][22][23][24][25][26][27], and oil M a n u s c r i p t absorption materials e.g., nano hole fiber [28,29], polymer nanocomposite [30][31][32][33] and porous graphene [34][35][36][37][38]. These oil absorbents have promising performances but still possess certain limitations, for instance poor recyclability, environmental incompatibility, harsh reaction conditions, expensive cost and so on.…”

Section: Introductionmentioning

confidence: 99%

Facile preparation and characterization of modified magnetic silica nanocomposite particles for oil absorption

Hao

Liang

et al. 2015

Applied Surface Science

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“…Currently, diatomite has applications as a filtration element, absorbent, natural pesticide, functional additive, dental filling, membrane or chemical sensor, among others. Diatomites can act as inorganic fillers with dual functions in a biocomposite: as a reinforcement component hampering gas diffusion through the material and as a carrier/container for controlled release of active substances …”

Section: Introductionmentioning

confidence: 99%

Effect of different compatibilizers on environmentally friendly composites from poly(lactic acid) and diatomaceous earth

Agüero

Quiles-Carrillo

Jordá‐Vilaplana

et al. 2019

Polymer International

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Environmentally friendly composites from poly(lactic acid) (PLA) and diatomaceous earth (DE) were successfully manufactured by extrusion, followed by injection moulding. DE was used as a filler; several compatibilizer/coupling agents, namely (3‐glycidyloxypropyl)trimethoxysilane, epoxy styrene acrylic oligomer and maleinized linseed oil, were used to improve polymer–filler interactions. Mechanical characterization was carried out by standard tensile, impact and hardness tests while morphological characterization of the fractured surfaces was conducted by field emission scanning electron microscopy. The effect of DE was evaluated by differential scanning calorimetry and dynamic mechanical thermal behaviour. The results show that the addition of DE provides an improved tensile modulus and induces more brittle composites due to stress concentration phenomena. The addition of compatibilizers in PLA‐DE positively contributes to improve ductile properties, thus leading to high environmental efficiency materials with balanced mechanical properties. Specifically, the compatibility improvement between the PLA and DE was good with maleinized linseed oil and contributed to improving the impact strength, which is a key factor in PLA‐based composites due to the intrinsic brittleness of neat PLA. © 2019 Society of Chemical Industry

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Manipulating surface wettability and oil absorbency of diatomite depending on processing and ambient conditions

Cited by 24 publications

References 48 publications

Effect of aggregate size on liquid absorption characteristics of konjac glucomannan superabsorbent

Effect of aggregate size on liquid absorption characteristics of konjac glucomannan superabsorbent

Facile preparation and characterization of modified magnetic silica nanocomposite particles for oil absorption

Effect of different compatibilizers on environmentally friendly composites from poly(lactic acid) and diatomaceous earth

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