Improvement of wall thickness uniformity of thick-walled polystyrene shells by density matching

Liu, Meifang; Chen, Sufen; Qi, Xiao bo; Li, Bo; Shi, Ruiting; Liu, Yiyang; Chen, Yongping; Zhang, Zhanwen

doi:10.1016/j.cej.2013.08.120

Cited by 49 publications

(28 citation statements)

References 24 publications

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“…In recent years, in situ polymerization has been one of the most important techniques for the production of PCM microcapsules . Polystyrene (PS) was usually used as the polymer shell with specified diameter and wall thickness . Based on our preliminary study, n ‐tetradecane was successfully encapsulated inside PS as shell material by in situ polymerization (data not shown).…”

Section: Resultsmentioning

confidence: 99%

Preservation of traditional Chinese pork balls supplemented with essential oil microemulsion in a phase‐change material package

et al. 2020

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BACKGROUND In this study, we evaluated the combined effect of cinnamon essential oil (CEO) microemulsions, and a temperature buffering package using phase‐change material (PCM) microcapsules on the physicochemical property, lipid oxidation, and bacterial load of traditional Chinese pork balls (shi zi tou) during temperature fluctuation storage for 9 days. RESULTS Transmission electron microscope characterization revealed that n‐tetradecane microcapsules possessed a core‐shell spherical shape with a size ranging from 300 to 600 nm. The use of n‐tetradecane microcapsule packaging was found to maintain cold storage temperature efficiently. After 9 days of storage, the combination of CEO microemulsions with n‐tetradecane microcapsules did not lead to changes in the color parameters of pork balls. At day 9, n‐tetradecane microcapsules, used alone or in combination with CEO microemulsions, showed lower thiobarbituric acid reactive substances (TBARS) values than the control group, while their combination exhibited the lowest pH and 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) values. Furthermore, the combination treatment retarded the growth of total plate count, lactic acid bacteria, Enterobacteriaceae, and Staphylococcus spp. after 4 and 9 days. CONCLUSIONS The combinations of CEO microemulsions and PCM microcapsules could extend the shelf‐life of cooked pork products, suggesting a feasible strategy for meat preservation. © 2020 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Preservation of traditional Chinese pork balls supplemented with essential oil microemulsion in a phase‐change material package

et al. 2020

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“…Double‐emulsion droplets have a significant potential for producing various microcapsules or other attractive candidates for a wide range of applications . Especially, the droplets ranging from 100 µm to a few millimeters are widely used in various areas, such as bioactive species delivery, controlled release, microreactors, heterogeneous catalysis, ion exchange, granular flow, and inertial confinement fusion (ICF) experiments . However, the millimeter‐scale double‐emulsion droplets were more vulnerable due to the complex rheology and the density stratification than micro‐scale ones.…”

Section: Introductionmentioning

confidence: 99%

“…Up to now, few researches were done to obtain millimeter‐sized double‐emulsion droplets via the microfluidic approach , , , , since challenges associated with millimetric emulsion generation in coaxial flows are variations in drop size and the metastability of the produced emulsion. In inertial fusion energy (IFE) experiments, Striet et al used a triple‐orifice droplet generator to form millimeter‐sized foam shells , , , , which was restricted by a higher request of assembly precision. A double T‐shaped channel and double coaxial capillary device were also used to produce large‐sized polymeric shells.…”

Section: Introductionmentioning

confidence: 99%

Production of Highly Monodisperse Millimeter‐Sized Double‐Emulsion Droplets in a Coaxial Capillary Device

et al. 2019

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An innovative coaxial capillary device with a size-comparable outlet channel was designed to meet the challenges for controllable production of highly monodisperse millimeter-sized double-emulsion droplets by one-step dripping. The technique of two angled junctions, coaxial capillaries, and compound channel geometry was introduced to convert the millifluidics to microfluidic hydrodynamic features. The relevant nondimensional numbers for a typically regular dripping in this kind of millifluidic flows were similar to those in common microfluidic devices. Effects of the rival forces due to the fluid factors on droplet formation were clarified to explain the dynamic behaviors of double-emulsion formation and to establish the mechanism of droplet breakup. The results helped to understand the coaxial flow pattern for obtaining a more precise droplet size control and to develop high-throughput setups for chemistry, physics, and biology.

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“…Carbon and hydrogen element with low atomic number is often served as the hollow microspheres material of the container for the laser inertial confinement fusion (ICF) experiment [1][2][3][4][5]. Polystyrene (PS) is an ideal candidate material because of the easy fabricating process of its microspheres.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the Interlayer Interaction between Polystyrene and Polyvinyl Alcohol by Ozone Treatment

Lin

et al. 2019

Advances in Polymer Technology

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The ozonization modification of polystyrene (PS) was conducted in acidic condition to enhance the interfacial interaction between PS and polyvinyl alcohol (PVA). Infrared spectra results revealed that the carbonyl and hydroxyl groups were successfully introduced to the PS film by ozonization. The hydrophobic PS was turned to be hydrophilic to some extent by contact angle experiment, which led to the enhancement of interfacial adhesion between PS and PVA. In addition, the adsorption of PS to PVA was also improved. Nano indenter measurement indicated the interfacial interaction between PS film and PVA film was obviously enhanced by 40% after ozonization at room temperature for 2 h in acidic condition, which will benefit for fabricating laser inertial confinement fusion container.

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Improvement of wall thickness uniformity of thick-walled polystyrene shells by density matching

Cited by 49 publications

References 24 publications

Preservation of traditional Chinese pork balls supplemented with essential oil microemulsion in a phase‐change material package

Preservation of traditional Chinese pork balls supplemented with essential oil microemulsion in a phase‐change material package

Production of Highly Monodisperse Millimeter‐Sized Double‐Emulsion Droplets in a Coaxial Capillary Device

Enhancement of the Interlayer Interaction between Polystyrene and Polyvinyl Alcohol by Ozone Treatment

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