Dr Aroon Shenoy
Worked in various capacities in field of rheology for over 25 years at professional level and conducted research on rheology-related topics during association with universities, research institutes and industry. Author/co-author of over 125 technical papers, about dozen invited review articles/chapters in Encyclopedias and Handbooks, and five books. 1. Aroon Shenoy, Heat Transfer to Non-Newtonian Fluids: Fundamentals and Analytical Expressions, Wiley-VCH, Germany (2018). 2. Aroon Shenoy, Mikhail Sheremet and Ioan Pop, Convective Flow and Heat Transfer from Wavy Surfaces: Viscous Fluids, Porous Media and Nanofluids, CRS Press, USA (2016). 3. Aroon V. Shenoy, Rheology of Filled Polymer Systems, Kluwer Academic Publishers, Netherlands (1999). 4. Charles P. MacDermott and Aroon V. Shenoy, Selecting Thermoplastics for Engineering Applications, Marcel Dekker Inc., New York (1997). 5. A. V. Shenoy and D. R. Saini, Thermoplastic Melt Rheology and Processing, Marcel Dekker Inc., New York (1996). Included in Who’s Who in Science and Engineering, Who’s Who in America, Who’s Who in Polymers and Plastics. Awarded Fellowship of ABI for Meritorious and Distinguished Contributions; found a place in the 2000 Outstanding Scholars of the 20th Century.
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Papers by Dr Aroon Shenoy
Review
`Rheology of Filled Polymer Systems will be of most interest to those involved in injection molding and similar processes. [...]if you are interested in molding processes, and especially in the theoretical background, then this book is for you. [...]The main feature which distinguishes this book from others on polymer rheology is its focus on filled systems. The addition of fillers (particles, fibers, flakes, etc.) makes such systems behave much differently than unfilled polymers. [...]the writing is quite good [...] Shenoy does a good job of presenting data for a variety of systems, explaining the trends intuitively, and then showing how it all fits in with the theories developed earlier in the book.'
Barry Berenberg in Composite.About.com
Demon3 on November 22, 2000Format: Hardcover
Book Review - Rheology of Filled Polymer Systems Aroon V. Shenoy
Kluwer Academic Publishers ISBN 0-412-83100-7
As a researcher in the area of particulate-filled composites I am continually looking for good books on this subject. Such books are hard to find, possibly because the topic is so multi-disciplinary that few authors manage to bring together the knowledge from polymer science (processing, stability, mechanical properties), surface science (dispersion, wetting, surface-treatment) and rheology (compounding and processing).
One area where it is especially difficult to find good information is that of filled polymer rheology. This topic is vital to understanding the behaviour of a filled polymer melt. For example, extruder throughput and mould filling during injection moulding are critical factors that must be understood when formulating a good particulate-filled polymer composite. I have found it hard to understand most texts on filled polymer rheology and therefore I was relieved when I read this book. The author must be congratulated on having presented such a complex field in a focussed and interesting way. All aspects of rheological measurement techniques are covered. First of all is an introduction to the rheological behaviour of un-filled polymers. Basic rheological concepts are presented followed by a comparison of the different measurement techniques. Steady shear and unsteady shear are both treated in detail where the author highlights the trends such as the influence of particle size, shape, distribution, concentration and surface treatment. Another chapter discusses the different types of polymer processing equipment and their relative merits and drawbacks for preparing polymer composites.
One especially intriguing section shows that even MFI data, which is simple and inexpensive to obtain, can be used as a powerful tool for estimating the rheological response of a filled polymer melt. The author shows that just by knowing the MFI and the Tg of the polymer, it is possible to calculate an approximate rheological response of the filled polymer melt. This estimation has sufficient accuracy to be of use in predicting the flow behaviour of the filled polymer melt during processing. Thus, even the humble MFI technique is shown to be a powerful tool and I expect that Shenoy's Unification approach will prove useful for many people, including myself.
I highly recommend this book to anyone interested in filled polymers. It is clearly written by someone with an excellent grasp of the subject. The text is concise and easy to read whilst the content is well organized and interesting.
Review
This is a useful book and will supplement the designer's knowledge and skills when trying to define the most suitable thermoplastics for a specific application.
---Materials & Manufacture
Review
This book offers an interesting, practical approach to the rheology and processing parameters of thermoplastic materials. . . This book is recommended for engineers and processors who may benefit from the use of the spreadsheet program to predict the behavior of thermoplastic materials as a function of processing parameters.
---Polymer News
The initial target grade was a PG 76-28. The modified asphalts came within 1ºC of the high temperature target and 2ºC of the low temperature target. Continuous grading specification values were determined on all the materials in addition to generating rheological mastercurves, and Black Diagrams. The rut resistance of mixes containing these binders was tested using the French Pavement Rut Tester at 70ºC and Superpave Shear Tester (SST) at 50ºC and 70ºC. Fatigue testing was conducted using the Four Point Bending Beam Test at 19ºC and 500 and 1000 microstrains. Moisture sensitivity of the mixes was evaluated using the Hamburg Wheel Tracking Device at 58ºC.
The relationships between binder characteristics and mix results were evaluated. The performance of these systems with respect to fatigue and moisture sensitivity is markedly different, whereas the rutting and low temperature cracking tendencies were quite similar. Validation of these results is currently being conducted on pavements incorporating a number of these modified binders at our Accelerated Loading Facility.
Review
`Rheology of Filled Polymer Systems will be of most interest to those involved in injection molding and similar processes. [...]if you are interested in molding processes, and especially in the theoretical background, then this book is for you. [...]The main feature which distinguishes this book from others on polymer rheology is its focus on filled systems. The addition of fillers (particles, fibers, flakes, etc.) makes such systems behave much differently than unfilled polymers. [...]the writing is quite good [...] Shenoy does a good job of presenting data for a variety of systems, explaining the trends intuitively, and then showing how it all fits in with the theories developed earlier in the book.'
Barry Berenberg in Composite.About.com
Demon3 on November 22, 2000Format: Hardcover
Book Review - Rheology of Filled Polymer Systems Aroon V. Shenoy
Kluwer Academic Publishers ISBN 0-412-83100-7
As a researcher in the area of particulate-filled composites I am continually looking for good books on this subject. Such books are hard to find, possibly because the topic is so multi-disciplinary that few authors manage to bring together the knowledge from polymer science (processing, stability, mechanical properties), surface science (dispersion, wetting, surface-treatment) and rheology (compounding and processing).
One area where it is especially difficult to find good information is that of filled polymer rheology. This topic is vital to understanding the behaviour of a filled polymer melt. For example, extruder throughput and mould filling during injection moulding are critical factors that must be understood when formulating a good particulate-filled polymer composite. I have found it hard to understand most texts on filled polymer rheology and therefore I was relieved when I read this book. The author must be congratulated on having presented such a complex field in a focussed and interesting way. All aspects of rheological measurement techniques are covered. First of all is an introduction to the rheological behaviour of un-filled polymers. Basic rheological concepts are presented followed by a comparison of the different measurement techniques. Steady shear and unsteady shear are both treated in detail where the author highlights the trends such as the influence of particle size, shape, distribution, concentration and surface treatment. Another chapter discusses the different types of polymer processing equipment and their relative merits and drawbacks for preparing polymer composites.
One especially intriguing section shows that even MFI data, which is simple and inexpensive to obtain, can be used as a powerful tool for estimating the rheological response of a filled polymer melt. The author shows that just by knowing the MFI and the Tg of the polymer, it is possible to calculate an approximate rheological response of the filled polymer melt. This estimation has sufficient accuracy to be of use in predicting the flow behaviour of the filled polymer melt during processing. Thus, even the humble MFI technique is shown to be a powerful tool and I expect that Shenoy's Unification approach will prove useful for many people, including myself.
I highly recommend this book to anyone interested in filled polymers. It is clearly written by someone with an excellent grasp of the subject. The text is concise and easy to read whilst the content is well organized and interesting.
Review
This is a useful book and will supplement the designer's knowledge and skills when trying to define the most suitable thermoplastics for a specific application.
---Materials & Manufacture
Review
This book offers an interesting, practical approach to the rheology and processing parameters of thermoplastic materials. . . This book is recommended for engineers and processors who may benefit from the use of the spreadsheet program to predict the behavior of thermoplastic materials as a function of processing parameters.
---Polymer News
The initial target grade was a PG 76-28. The modified asphalts came within 1ºC of the high temperature target and 2ºC of the low temperature target. Continuous grading specification values were determined on all the materials in addition to generating rheological mastercurves, and Black Diagrams. The rut resistance of mixes containing these binders was tested using the French Pavement Rut Tester at 70ºC and Superpave Shear Tester (SST) at 50ºC and 70ºC. Fatigue testing was conducted using the Four Point Bending Beam Test at 19ºC and 500 and 1000 microstrains. Moisture sensitivity of the mixes was evaluated using the Hamburg Wheel Tracking Device at 58ºC.
The relationships between binder characteristics and mix results were evaluated. The performance of these systems with respect to fatigue and moisture sensitivity is markedly different, whereas the rutting and low temperature cracking tendencies were quite similar. Validation of these results is currently being conducted on pavements incorporating a number of these modified binders at our Accelerated Loading Facility.