Preparation and characterization of ethyl cellulose-based core–shell microcapsules containing plant oils

Mirabedini, S.M.; Dutil, I.; Farnood, Ramin

doi:10.1016/j.colsurfa.2011.11.028

Cited by 80 publications

(59 citation statements)

References 33 publications

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“…We used these functionalized chips right away, or after a few days, kept in air without noticing differences in their performance. Table 1 lists the main physical parameters of the liquids used in our study, as deduced from the literature [30,31] or measured directly. As a dispersed phase, we chose linseed oil, which we found perfectly compatible with the PDMS.…”

Section: Fabricationmentioning

confidence: 99%

Generation of Oil Droplets in a Non-Newtonian Liquid Using a Microfluidic T-Junction

et al. 2015

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Abstract:We have compared the formation of oil drops in Newtonian and non-Newtonian fluids in a T-junction microfluidic device. As Newtonian fluids, we used aqueous solutions of glycerol, while as non-Newtonian fluids we prepared aqueous solutions of xanthan, a stiff rod-like polysaccharide, which exhibit strong shear-thinning effects. In the squeezing regime, the formation of oil droplets in glycerol solutions is found to scale with the ratio of the dispersed flow rate to the continuous one and with the capillary number associated to the continuous phase. Switching to xanthan solutions does not seem to significantly alter the droplet formation process. Any quantitative difference with respect to the Newtonian liquid can be accounted for by a suitable choice of the capillary number, corresponding to an effective xanthan viscosity that depends on the flow rates. We have deduced ample variations in the viscosity, on the order of 10 and more, during normal operation conditions of the T-junction. This allowed estimating the actual shear rates experienced by the xanthan solutions, which go from tens to hundreds of s´1.

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Section: Fabricationmentioning

confidence: 99%

Generation of Oil Droplets in a Non-Newtonian Liquid Using a Microfluidic T-Junction

et al. 2015

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“…Some of the methods used for providing selfhealing characteristics to the coating materials are included, but do not limit to systems containing hollow glass fibers [1], microvascular networks [2], supramolecular structures [3] and finally microencapsulation of healing agent(s) [4][5][6][7][8][9]. Among those methods, microcapsules filled with healing materials seem to be a promising method for repairing their substrate coatings in response to an external mechanical stimulus causing damage to the coating.…”

Section: Introductionmentioning

confidence: 98%

Mechanical and self-healing properties of a water-based acrylic latex containing linseed oil filled microcapsules: Effect of pre-silanization of microcapsules' shell compound

Es-haghi

Mirabedini

Imani

et al. 2016

Composites Part B: Engineering

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“…The mechanical properties of the microcapsules-embedded coatings are somewhat weaker according to pulloff- [13], adhesion- [14] or tensile tests [15]. In the literature there are several papers on preparation of core-shell microcapsules with various core materials: linseed oil [13,15,16,17,18,19,20], tung oil [21], two-component epoxy hardeners [22], water reactive silyl esters [23], methyl methacrylate [24], dicyclopentadiene [23,25,26,27] etc. are mentioned as the most important techniques.…”

Section: Introductionmentioning

confidence: 99%

Linseed oil-filled microcapsules containing drier and corrosion inhibitor – Their effects on self-healing capability of paints

Szabó

Telegdi

Nyikos

2015

Progress in Organic Coatings

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Core-shell microcapsules of urea-resorcinol-formaldehyde shell and linseed oil (LO) core material as paint additives for self-healing coatings were prepared. The capsules contained LO either with or without Co-octoate as drier material and/or octadecylamine (ODA) as corrosion inhibitor. The microcapsules embedded in a commercial paint were applied on sandblasted mild steel sheets. After scratching the coated surface, the inhibition efficiency of core-shell microcapsule-containing coat, dipped into corrosive media, was followed visually and evaluated numerically by electrochemical impedance spectroscopy (EIS). In separate experiments, to optimize for the self-healing process, the composition of the core material, the effect of the drier and/or the inhibitor ODA on drying process of LO films were monitored by infrared spectroscopy. Pure LO needed 6-7 days to dry completely. The drying period could be shortened (to 5 h) via application of a dryer, but the addition of the corrosion inhibitor alone increased significantly the time needed for solifidicaiton. To minimize the drying period we have found the proper combination of the ODA and the dryer of the LO. The EIS measurements, in accordance with the drying tests, resulted in the next order of selfhealing ability: LO

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Preparation and characterization of ethyl cellulose-based core–shell microcapsules containing plant oils

Cited by 80 publications

References 33 publications

Generation of Oil Droplets in a Non-Newtonian Liquid Using a Microfluidic T-Junction

Generation of Oil Droplets in a Non-Newtonian Liquid Using a Microfluidic T-Junction

Mechanical and self-healing properties of a water-based acrylic latex containing linseed oil filled microcapsules: Effect of pre-silanization of microcapsules' shell compound

Linseed oil-filled microcapsules containing drier and corrosion inhibitor – Their effects on self-healing capability of paints

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