Oil sorption and retention capacities of thermally-bonded hybrid nonwovens prepared from cotton, kapok, milkweed and polypropylene fibers

Thilagavathi, G.; Karan, C Praba; Das, Dipayan

doi:10.1016/j.jenvman.2018.04.107

Cited by 63 publications

(36 citation statements)

References 20 publications

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“…The micrograph of CP fiber (Figure 3a) shows a smooth surface and with hydrophobic bristly coating the hollow structure, also reported by Thilagavathi et al (2018) [50]. However, after being subjected to temperatures of 200 °C, the fiber suffered deformation, presenting a more limpid aspect.…”

Section: Resultssupporting

confidence: 72%

Evaluation of Thermally Treated Calotropis Procera Fiber for the Removal of Crude Oil on the Water Surface

et al. 2019

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Biosorbents have been highlighted as an alternative method for the removal of contaminants from spills or leaks of oil and its derivatives, since they are biodegradable, are highly available, low-cost, and have a good sorption capacity. This research investigated the sorption capacity of Calotropis procera fiber in natura (CP) and thermally treated (150 °C and 200 °C) for crude oil removal and recovery. The oil sorption tests were carried out in a dry and water (layer) static systems. The assays revealed that CP fiber has excellent hydrophobic-oil properties and good crude oil sorption capacity, about 75 times its own weight (76.32 g/g). The results of the treated fibers, CPT150 and CPT200, showed oil sorption capacities (in 24 h) higher than CP, between 94.31–103.37 g/g and 124.60–180.95 g/g, respectively. The results from sample CPT200 showed that it can be an excellent biosorbent for the removal of crude oil and other derivatives due to its high hydrophobicity, great reuse/resorption capacity, and ability to retain oil within the fiber lumens. Thus, it can be applied in the recovery, cleaning, and removal of petroleum products and its derivatives from spills and leaks in the future.

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Section: Resultssupporting

confidence: 72%

Evaluation of Thermally Treated Calotropis Procera Fiber for the Removal of Crude Oil on the Water Surface

et al. 2019

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“…Likewise, a substance such as chloroform [8] is not only hazardous but a probable carcinogen. For oil/water mixtures, excellent results of oil removal are obtained by utilizing the mechanical method [18], filtration system [9] and hybrid assembly [19,20,21] without even having to modify the kapok fibre. Therefore, taking everything into consideration which includes the cost, modification might not be feasible when the performance is not greatly enhanced.…”

Section: Discussionmentioning

confidence: 99%

“…A recent study reported several materials and geometrical factors such as fibre type, fibre diameter, fibre surface area, porosity and blend proportion of fibres in a series of thermally-bonded, hybrid and oil-sorbent nonwovens constructed from binary and tertiary mixing of cotton, kapok, and three varieties of milkweed fibres (Asclepias Syriaca, Calotropis Procera and Calotropis Gigantea) and polypropylene fibres for oil absorption properties [19]. Calotropis Procera and Calotropis Gigantea fibres offered higher sorption than kapok and common milkweed (Asclepias Syriaca).…”

Section: Surface Modification and Oil Absorptionmentioning

confidence: 99%

The oil-absorbing properties of kapok fibre – a commentary

Quek

Ngadi

Zaini

2020

Journal of Taibah University for Science

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This paper highlights the oil absorbing properties of natural and modified kapok fibres. The discussion is centred on the waxy layer and hydrophobic nature that translate the excellent oil removal performance of kapok fibre. A stirring had shown that the oil absorption by natural kapok could be greatly enhanced to over 200 g/g. For dispersed oil in wastewater, a depth filtrating system with rotatable and taper-shaped filter column with kapok fibre was reported to recover 32.3 g/g of the oils. Several modifications to boost the performance of kapok fibre as in acetylation, solvent treatment, fibre hybridization, assembly structure and design, etc. are identified and discussed to shed some light into future prospective in oil and emulsion removal. So far, all the studies have shown that kapok fibre and its modified counterparts are promising green oil absorbents. ARTICLE HISTORY

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“…[ 10 ] Furthermore, it becomes even more attractive because silk‐floss trees are grown in the barren land, requiring little water, no addition of fertilizers and pesticides and have a continuous growth that does not leave waste. [ 11 ]…”

Section: Introductionmentioning

confidence: 99%

Ceiba speciosa St. Hill fruit fiber as a potential source for nanocellulose production and reinforcement of polyvinyl acetate composites

et al. 2020

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The natural cottony aspect of silk‐floss tree fruit fiber allied with its high‐cellulose content turned our attention for their application at the nanocellulose production since spares the prerefining and pulping processes that are obligatory for the size reduction of the main cellulosic fiber sources. This study presents preparation and characterization of cellulose nanofibers (CNFs) using mechanical defibrillation to explore their potential in the preparation of polymer composites using polyvinyl acetate (PVAc) emulsion. We characterized and subjected silk‐floss fruit fiber to four chemical treatments. Based on the degree of delignification, treatments with sodium chlorite (II) and their mixture with methanol and toluene (IV) were chosen for further studies. The resulting CNFs were characterized by Fourier‐transform infrared, X‐ray diffraction, differential scanning calorimetry, thermogravimetric analysis, and scanning and transmission electron microscopy. Composites were prepared using several amounts (0.50‐1.00 wt%) of CNFs and their tensile strengths were determined. Composites containing 1.00% CNFs (Treatment II) were found to exhibit lowest strength while those with 0.5% CNFs (Treatment IV) showed the highest strength with 351% and were 518% higher resistant than the PVAc matrix, respectively.

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Oil sorption and retention capacities of thermally-bonded hybrid nonwovens prepared from cotton, kapok, milkweed and polypropylene fibers

Cited by 63 publications

References 20 publications

Evaluation of Thermally Treated Calotropis Procera Fiber for the Removal of Crude Oil on the Water Surface

Evaluation of Thermally Treated Calotropis Procera Fiber for the Removal of Crude Oil on the Water Surface

The oil-absorbing properties of kapok fibre – a commentary

Ceiba speciosa St. Hill fruit fiber as a potential source for nanocellulose production and reinforcement of polyvinyl acetate composites

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