Drying Mechanism of Polymer Solution
نویسندگان
چکیده
منابع مشابه
Anomalous drying dynamics of a polymer solution on a substrate.
When a polymer solution with volatile solvent is exposed to open air, an elastic layer (called a skin) is often formed at the surface of the solution due to evaporation of the solvent. After such a skin is formed, further extraction of the solvent from the solution caused by evaporation has generally been considered to reduce the pressure in the solution. We have found that, in PMMA/acetone dro...
متن کاملDrying-induced hydrophobic polymer collapse.
We have used computer simulation to study the collapse of a hydrophobic chain in water. We find that the mechanism of collapse is much like that of a first-order phase transition. The evaporation of water in the vicinity of the polymer provides the driving force for collapse, and the rate limiting step is the nucleation of a sufficiently large vapor bubble. The study is made possible through th...
متن کاملDynamics of Drying Process of Polymer Solution Droplets: Analysis of Polymer Transport and Control of Film Profiles
Drying process of droplets on a flat substrate is a commonly observed phenomenon in our daily life. Because of their important roles in the nature and in industry, drying droplets have been a topic of continued interest for several decades. Recently, the drying process of droplets containing nonvolatile materials is focused as an important problem in inkjet printing, which is attracting increas...
متن کاملStable and unstable surface evolution during the drying of a polymer solution drop.
Drying of a sessile drop of a complex liquid can lead to intriguing complex shapes. We report here a study dealing with a model system, made of a hydrosoluble polymer that is glassy when pure. Under solvent evaporation, polymers accumulate near the vapor/drop interface and may form a glassy skin, which bends as the volume of liquid it encloses decreases. The conditions for the occurrence of thi...
متن کاملPhase-Destabilization Mechanism of Polymer-Modified Bitumens in Quiescent Annealing
Bitumen as a binder in coating and insulating materials is modified with polymers to improve its performance in service conditions. Almost all polymers are incompatible with bitumen, and at high temperatures due to relatively very low viscosity of the bitumen phase, are separated from it. These lead to a considerable limitation in the use and handling of polymer-modified bitumens. An understand...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical engineering
سال: 1965
ISSN: 0375-9253
DOI: 10.1252/kakoronbunshu1953.29.294