Reactive Extrusion of Polypropylene/Polyethylene Blends:  Kinetic Model Development

1997 ◽  
Vol 36 (4) ◽  
pp. 1191-1201 ◽  
Author(s):  
P. C. Cheung ◽  
S. T. Balke
Keyword(s):  
Kinetic Model ◽  
Model Development ◽  
Reactive Extrusion ◽  
Polyethylene Blends

Reactive extrusion of polystyrene/polyethylene blends

1988 ◽  
Vol 28 (21) ◽  
pp. 1434-1442 ◽  
Author(s):  
Peter van Ballegooie ◽  
Alfred Rudin
Keyword(s):  
Reactive Extrusion ◽  
Polyethylene Blends

Compatible thermoplastic starch/polyethylene blends by one-step reactive extrusion

2004 ◽  
Vol 54 (2) ◽  
pp. 279-285 ◽  
Author(s):  
Shujun Wang ◽  
Jiugao Yu ◽  
Jinglin Yu
Keyword(s):  
Reactive Extrusion ◽  
Thermoplastic Starch ◽  
Polyethylene Blends ◽  
One Step

Kinetic Model Development for Accelerated Stability Studies

2016 ◽  
Vol 18 (4) ◽  
pp. 1158-1176 ◽  
Author(s):  
Don Clancy ◽  
Neil Hodnett ◽  
Rachel Orr ◽  
Martin Owen ◽  
John Peterson
Keyword(s):  
Kinetic Model ◽  
Model Development ◽  
Stability Studies ◽  
Accelerated Stability

scholarly journals Monochloramine dissipation in storm sewer systems: field testing and model development

2018 ◽  
Vol 78 (11) ◽  
pp. 2279-2287 ◽  
Author(s):  
Qianyi Zhang ◽  
Mohamed Gaafar ◽  
Evan G. R. Davies ◽  
James R. Bolton ◽  
Yang Liu
Keyword(s):  
Kinetic Model ◽  
Distribution Systems ◽  
Tap Water ◽  
Water Discharge ◽  
Model Development ◽  
Field Testing ◽  
Sampling Point ◽  
Sewer Systems ◽  
Dissipation Test ◽  
Storm Sewer

Abstract Monochloramine (NH2Cl), as the dominant disinfectant in drinking water chloramination, can provide long-term disinfection in distribution systems. However, NH2Cl can also be discharged into storm sewer systems and cause stormwater contamination through outdoor tap water uses. In storm sewer systems, NH2Cl dissipation can occur by three pathways: (i) auto-decomposition, (ii) chemical reaction with stormwater components, and (iii) biological dissipation. In this research, a field NH2Cl dissipation test was conducted with continuous tap water discharge into a storm sewer. The results showed a fast decrease of NH2Cl concentration from the discharge point to the sampling point at the beginning of the discharge period, while the rate of decrease decreased as time passed. Based on the various pathways involved in NH2Cl decay and the field testing results, a kinetic model was developed. To describe the variation of the NH2Cl dissipation rates during the field testing, a time coefficient fT was introduced, and the relationship between fT and time was determined. After calibration through the fT coefficient, the kinetic model described the field NH2Cl dissipation process well. The model developed in this research can assist in the regulation of tap water outdoor discharge and contribute to the protection of the aquatic environment.

Kinetic Model with Effect of Water Content for Enzyme-Catalyzed Citronellyl Laurate Esterification Process

2013 ◽  
Vol 284-287 ◽  
pp. 423-428 ◽  
Author(s):  
Siti Asyura Zulkeflee ◽  
Suhairi Abd Sata ◽  
Norashid Aziz
Keyword(s):  
Experimental Data ◽  
Kinetic Model ◽  
Water Content ◽  
Model Development ◽  
Initial Water Content ◽  
Initial Water ◽  
Effect Of Water ◽  
Proposed Model ◽  
Optimal Value ◽  
Influence Of Water

A kinetic model with effect of water content for enzyme-catalyzed citronellyl laurate was developed. These models incorporate the combined influences of established kinetics model with the function model on the effect of initial water content with kinetic parameters. The model development was carried out by performing a linear and nonlinear regression based on the behavior of the kinetic parameter profiles and validated with experimental data. Using the developed models, the influence of water content towards the enzyme-catalyzed initial rate of reaction was theoretically explained. It has been shown that the proposed model have good agreement between experimental data and intends to capture the effect of water content towards the conversion of ester. With this model, the optimal value of initial water content for this process could be estimated.

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