Advertisement

Topics

Skin formation and bubble growth during drying process of polymer solution.

Summary of "Skin formation and bubble growth during drying process of polymer solution."

When a polymer solution with volatile solvent is dried, skins are often formed at the surface of the solution. It has been observed that after the skin is formed, bubbles often appear in the solution. We conducted experiments to clarify the relation between the skin formation and the bubble formation. We measured the time dependence of the thickness of the skin layer, the size of the bubbles, and the pressure in the solution. From our experiments, we concluded that i) the gas in the bubble is a mixture of solvent vapor and air dissolved in the solution, ii) the bubble nucleation is assisted by the pressure decrease in the solution covered by the skin layer, and iii) the growth of the bubbles is diffusion limited, mainly limited by the diffusion of air molecules dissolved in the solution.

Affiliation

Graduate School of Engineering, The University of Tokyo, 113-8656, Tokyo, Japan, arai1010@iis.u-tokyo.ac.jp.

Journal Details

This article was published in the following journal.

Name: The European physical journal. E, Soft matter
ISSN: 1292-895X
Pages: 9734

Links

DeepDyve research library

PubMed Articles [25466 Associated PubMed Articles listed on BioPortfolio]

Bubble dynamics inside an outgassing hydrogel confined in a Hele-Shaw cell.

We report an experimental study of bubble dynamics in a non-Newtonian fluid subjected to a pressure decrease. The fluid is a hydrogel, composed of water and a synthetic clay, prepared and sandwiched b...

Natural Gas Evolution in a Gas Hydrate Melt: Effect of Thermodynamic Hydrate Inhibitors.

Natural gas extraction from gas hydrate sediments by injection of hydrate inhibitors involves the decomposition of hydrates. The evolution of dissolved gas from the hydrate melt is an important step i...

Intensification of microalgae drying and oil extraction process by vapor recompression and heat integration.

Reducing energy penalty caused by drying and oil extraction is the most critical challenge in microalgae biodiesel production. In this study, vapor recompression and heat integration are utilized to o...

Drying Mechanisms in Plasticized Latex Films. Role of Horizontal Drying Fronts.

This paper presents studies on drying kinetics of latexes with particles made softer and softer by increasing amounts of plasticizer, in relation to speeds of horizontal drying fronts and particle def...

Extreme conditions in a dissolving air nanobubble.

Numerical simulations of the dissolution of an air nanobubble in water have been performed taking into account the effect of bubble dynamics (inertia of the surrounding liquid). The presence of stable...

Clinical Trials [5779 Associated Clinical Trials listed on BioPortfolio]

Long Term Follow up of Scars Formation and Quality of Life Assessment Study

In previous study (MW2004-011-02), patients with burn wounds had their damaged skin removed by either standard of care treatment or by Debrase Gel Dressing (DGD), which is composed of enzy...

Central Versus Peripheral Air Injection for DALK (Deep Anterior Lamellar Keratoplasty)

Different techniques of deep anterior lamellar keratoplasty (DALK) have been introduced to create a uniform recipient bed, thereby reducing complications, such as interface irregularity an...

Comparison of Bubble Continuous Positive Airway Pressure (CPAP) With Conventional CPAP for Extubation in Preterm Very Low Birth Weight (VLBW) Infants

The objective of this study is to evaluate whether CPAP delivered by bubble CPAP resulted in a greater proportion of infants being successfully extubated when compared with management with...

Topotecan Hydrochloride or Cyclodextrin-Based Polymer-Camptothecin CRLX101 in Treating Patients With Recurrent Small Cell Lung Cancer

This randomized phase II trial studies how well giving topotecan hydrochloride or cyclodextrin-based polymer-camptothecin CRLX101 works in treating patients with recurrent small cell lung ...

Rapamycin-Eluting Stents With Different Polymer Coating to Reduce Restenosis (ISAR-TEST-3)

The purpose of this study is to evaluate the efficacy of 3 different rapamycin-eluting-stent platforms to reduce coronary artery reblockage after stent implantation

Medical and Biotech [MESH] Definitions

Strongly cationic polymer that binds to certain proteins; used as a marker in immunology, to precipitate and purify enzymes and lipids. Synonyms: aziridine polymer; Epamine; Epomine; ethylenimine polymer; Montrek; PEI; Polymin(e).

The process by which two molecules of the same chemical composition form a condensation product or polymer.

Countries in the process of change directed toward economic growth, that is, an increase in production, per capita consumption, and income. The process of economic growth involves better utilization of natural and human resources, which results in a change in the social, political, and economic structures.

A cognitive process involving the formation of ideas generalized from the knowledge of qualities, aspects, and relations of objects.

A 17-kDa single-chain polypeptide growth factor that plays a significant role in the process of WOUND HEALING and is a potent inducer of PHYSIOLOGIC ANGIOGENESIS. It binds to HEPARIN, which potentiates its biological activity and protects it from proteolysis. The growth factor is an extremely potent inducer of DNA synthesis in a variety of cell types from mesoderm and neuroectoderm lineages, and also has chemotactic and mitogenic activities. It was originally named acidic fibroblast growth factor based upon its chemical properties and to distinguish it from basic fibroblast growth factor (FIBROBLAST GROWTH FACTOR 2).

Quick Search
Advertisement
 


DeepDyve research library

Relevant Topics

Wound management
Anything that breaks the skin is a wound because when the skin is broken, there's a risk of germs getting into the body and causing an infection. Follow and track Wound Care News on BioPortfolio: Wound Car...

Dermatology
Acne Dermatology Eczema Psoriasis Wound Care Dermatology is the medical specialty concerned with the diagnosis and treatment of skin disorders (Oxford Medical Dictionary). As well as studying how the skin works, dermatology covers...


Searches Linking to this Article