Temperature dependence of the drying process in polymer solutions observed by dynamic speckle detection

2019 ◽  
Author(s):  
Elena Stoykova ◽  
Blaga Blagoeva ◽  
Lian Nedelchev ◽  
Dimana Nazarova
Keyword(s):  
Temperature Dependence ◽  
Polymer Solutions ◽  
Drying Process ◽  
Dynamic Speckle ◽  
Speckle Detection

Temperature dependence of the viscosity of polymer solutions

1965 ◽  
Vol 7 (11) ◽  
pp. 2155-2159 ◽  
Author(s):  
E.A. Pakshver ◽  
A.I. Ignatova ◽  
G.V. Vinogradov
Keyword(s):  
Temperature Dependence ◽  
Polymer Solutions

Laser Speckle Detection System for Seed Viability Assessment

2014 ◽  
Vol 556-562 ◽  
pp. 3156-3159 ◽  
Author(s):  
Sen Men ◽  
Lei Yan ◽  
Hua Qian ◽  
Na Li ◽  
Jian Ping Yao
Keyword(s):  
Detection System ◽  
Seed Viability ◽  
Laser Speckle ◽  
Viability Assessment ◽  
Optical Phenomenon ◽  
Dynamic Speckle ◽  
Working Principle ◽  
Speckle Detection

This work presents a new detection system for seed viability assessment. The theoretical of the system is based on laser speckle or dynamic speckle, an optical phenomenon produced by interference of light. In the present work, the detection of a single in a period of time is been concentrate. The various parts and working principle of the laser speckle detection system explain detailed and the feasibility of this system is experiment in this paper. The result shows that this system is available in this field, and it can support the further study.

Application of Dynamic Speckle Techniques in Monitoring Biofilms Drying Process

2008 ◽  
Author(s):  
Adilson M. Enes ◽  
Roberto A. Braga Júnior ◽  
Inácio M. Dal Fabbro ◽  
Washington A. da Silva ◽  
Joelma Pereira ◽  
...  
Keyword(s):  
Drying Process ◽  
Dynamic Speckle

Modeling of Infrared Drying of Polymer Solutions

2010 ◽  
Vol 5 (1) ◽  
Author(s):  
Zia ul- Islam ◽  
Ramdhane Dhib ◽  
Yaser Dahman
Keyword(s):  
Polymer Solutions ◽  
Industrial Applications ◽  
Drying Process ◽  
Air Velocity ◽  
Highly Nonlinear ◽  
Transfer Equations ◽  
Drying Behavior ◽  
Energy Balances ◽  
Simultaneous Heat ◽  
Mass And Energy Balances

This work presents the dynamic modeling of drying behavior of polymer solutions in an infrared-convective oven. Two study cases were considered for the drying process. The first one deals with the drying of a coated polymer solution on a fixed substrate while the second one includes drying of the same solution on a moving substrate in an infrared (IR) oven. Both models involve simultaneous heat and mass transfer equations that describe changes in the solvent concentration and the polymer temperature during the drying process. The set of partial differential equations (PDEs) arising from the mass and energy balances constitute a highly nonlinear system due to inter-dependence of the thermodynamic and transport properties of polymer solutions. The models were numerically solved and were validated using published experimental data. The models were employed to simulate the drying of a polyvinyl acetate coating (in toluene) on a polyester substrate. Results obtained from the derived model demonstrated the importance of parameters such as web velocity, heater temperature, and inlet air velocity in the IR drying process. In general, high temperature and air velocity cause rapid drying of the polymer coating, while high substrate velocity resulted in drying. This model can be applied on any industrial applications that include continuous IR drying process of polymer-coated layers to predict the drying behavior of the coated product.

scholarly journals Assessment of Fevicol (adhesive) Drying Process through Dynamic Speckle Techniques

2015 ◽  
Vol 2 (2) ◽  
pp. 49-59 ◽  
Author(s):  
Mohammad Z. Ansari ◽  
◽  
Anil K. Nirala
Keyword(s):  
Drying Process ◽  
Dynamic Speckle
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