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Co-Rotating Twin-Screw Extruders: Applications

Author : Klemens Kohlgrüber

Publisher :

Page : 364 pages

File Size : 15,50 MB

Release : 2020-11-09

Category :

ISBN : 9781569907818

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Book Description

Co-rotating twin-screw extruders are extensively used for the preparation, compounding, mixing, and processing of plastics, but also in other industry branches, such as in rubber and food processing, and increasingly in the pharmaceutical industry too. Derived from the classic bestselling work "Co-Rotating Twin Screw Extruders", this book focuses on the application and machine technology of co-rotating twin-screw extrusion. It includes functional zones in the extruder, scale-up and scale-down, machine technology, and many application examples from a broad range of areas. Co-rotating twin-screw machines usually have modular configurations and are thus quite flexible for adapting to changing tasks and material properties. Well-founded knowledge of machines, processes, and material behavior is required in order to design and operate twin-screw extruders for economically successful operations. With chapters written by many expert authors from industry and academia, this book provides valuable information on applications from a practical perspective, suitable for both beginners and experienced professional engineers.



Co-Rotating Twin-Screw Extruder

Author : Klemens Kohlgrüber

Publisher : Carl Hanser Verlag GmbH Co KG

Page : 370 pages

File Size : 49,63 MB

Release : 2012-11-12

Category : Technology & Engineering

ISBN : 3446433414

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Book Description

Co-rotating screws and/or extruders are used in many branches of industry for producing, preparing and/or processing highly viscous materials. They find a wide variety of applications especially in the plastics, rubber and food industries. Co-rotating twin-screw machines usually have modular configurations and are thus quite flexible for adapting to changing tasks and material properties. Well-founded knowledge of machines, processes and material behavior are required in order to design twin-screw extruder for economically successful operations. This book provides basic engineering knowledge regarding twin-screw machines; it lists the most important machine-technical requirements and provides examples based on actual practice. Better understanding of the processes is emphasized as this is a prerequisite for optimizing twin-screw designs and operating them efficiently. Besides basic functions, such as compounding, the book focuses on: - the historical development of twin-screws - the geometry of the screw elements (fundamentals, basic patents, patents overview) - material properties and material behavior in the machine - fundamentals of feed behavior, pressure build-up and power input - examples of applications for various processing tasks - compounding: tasks, applications, processing zones - potential and limits of modeling - scaling-up various processes - machine design incl. drives and materials



Co-rotating Twin-screw Extruders

Author : Klemens Kohlgrüber

Publisher :

Page : 354 pages

File Size : 18,88 MB

Release : 2008

Category : Plastics

ISBN : 9783446413726

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Book Description

Co-rotating screws and/or extruders are used in many branches of industry for producing, preparing and/or processing highly viscous materials. They find a wide variety of applications especially in the plastics, rubber and food industries. Co-rotating twin-screw machines usually have modular configurations and are thus quite flexible for adapting to changing tasks and material properties. Well-founded knowledge of machines, processes and material behavior are required in order to design twin-screw extruder for economically successful operations. This book provides basic engineering knowledge regarding twin-screw machines; it lists the most important machine-technical requirements and provides examples based on actual practice. Better understanding of the processes is emphasized as this is a prerequisite for optimizing twin-screw designs and operating them efficiently. Besides basic functions, such as compounding, the book focuses on: the historical development of twin-screws the geometry of the screw elements (fundamentals, basic patents, patents overview) material properties and material behavior in the machine fundamentals of feed behavior, pressure build-up and power input examples of applications for various processing tasks compounding: tasks, applications, processing zones potential and limits of modeling scaling-up various processes machine design incl. drives and materials



Co-Rotating Twin-Screw Extruders: Fundamentals

Author : Klemens Kohlgrüber

Publisher :

Page : 0 pages

File Size : 32,94 MB

Release : 2020

Category : Computational fluid dynamics

ISBN : 9781569907474

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Book Description

Co-rotating twin-screw extruders are extensively used for the preparation, compounding, mixing, and processing of plastics, but also in other industry branches, such as in rubber and food processing, and increasingly in the pharmaceutical industry too. Derived from the classic, bestselling work "Co-Rotating Twin Screw Extruders", this book brings much of the content up to date, with an expanded focus on the fundamentals of co-rotating twin-screw extrusion, including functional zones in the extruder, screw elements, material behavior, flow properties, performance behavior, and application of computational fluid dynamics. Co-rotating twin-screw machines usually have modular configurations and are thus quite flexible for adapting to changing tasks and material properties. Well-founded knowledge of machines, processes, and material behavior is required in order to design and operate twin-screw extruders for economically successful operations. With chapters written by many expert authors from industry and academia, this book provides valuable information on applications from a practical perspective, suitable for both beginners and experienced professional engineers.



Compounding in Co-Rotating Twin-Screw Extruders

Author : Yeh Wang

Publisher : iSmithers Rapra Publishing

Page : 132 pages

File Size : 44,81 MB

Release : 2000

Category : Technology & Engineering

ISBN : 9781859571965

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Book Description

This report describes the geometric structure of modular extruders, development of the various units of an extruder and their functions, the flow mechanisms and models of their behaviour and experimental studies of extruder performance and applications. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.







Co-Rotating Twin-Screw Extruders – Two Volume Set

Author : Klemens Kohlgrüber

Publisher : Carl Hanser Verlag GmbH Co KG

Page : 796 pages

File Size : 23,21 MB

Release : 2020-12-07

Category : Technology & Engineering

ISBN : 1569908788

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Book Description

Co-rotating twin-screw extruders are extensively used for the preparation, compounding, mixing, and processing of plastics, but also in other industry branches, such as in rubber and food processing, and increasingly in the pharmaceutical industry too. Derived from the classic, bestselling work "Co-Rotating Twin Screw Extruders", this book brings much of the content up to date, with an expanded focus on the fundamentals of co-rotating twin-screw extrusion, including functional zones in the extruder, screw elements, material behavior, flow properties, performance behavior, and application of computational fluid dynamics. Co-rotating twin-screw machines usually have modular configurations and are thus quite flexible for adapting to changing tasks and material properties. Well-founded knowledge of machines, processes, and material behavior is required in order to design and operate twin-screw extruders for economically successful operations. With chapters written by many expert authors from industry and academia, this book provides valuable information on applications from a practical perspective, suitable for both beginners and experienced professional engineers. Also derived from the classic bestselling work "Co-Rotating Twin Screw Extruders", the second book focuses on the application and machine technology of co-rotating twin-screw extrusion. It includes functional zones in the extruder, scale-up and scale-down, machine technology, and many application examples from a broad range of areas.



Reactive Extrusion

Author : Günter Beyer

Publisher : John Wiley & Sons

Page : 434 pages

File Size : 22,99 MB

Release : 2018-01-03

Category : Science

ISBN : 352734098X

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Book Description

This first comprehensive overview of reactive extrusion technology for over a decade combines the views of contributors from both academia and industry who share their experiences and highlight possible applications and markets. They also provide updated information on the underlying chemical and physical concepts, summarizing recent developments in terms of the material and machinery used. As a result, readers will find here a compilation of potential applications for reactive extrusion to access new and cost-effective polymeric materials, while using existing compounding machines.



Hot-Melt Extrusion

Author : Dennis Douroumis

Publisher : John Wiley & Sons

Page : 404 pages

File Size : 21,13 MB

Release : 2012-04-24

Category : Science

ISBN : 1118307879

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Book Description

Hot-melt extrusion (HME) - melting a substance and forcing it through an orifice under controlled conditions to form a new material - is an emerging processing technology in the pharmaceutical industry for the preparation of various dosage forms and drug delivery systems, for example granules and sustained release tablets. Hot-Melt Extrusion: Pharmaceutical Applications covers the main instrumentation, operation principles and theoretical background of HME. It then focuses on HME drug delivery systems, dosage forms and clinical studies (including pharmacokinetics and bioavailability) of HME products. Finally, the book includes some recent and novel HME applications, scale -up considerations and regulatory issues. Topics covered include: principles and die design of single screw extrusion twin screw extrusion techniques and practices in the laboratory and on production scale HME developments for the pharmaceutical industry solubility parameters for prediction of drug/polymer miscibility in HME formulations the influence of plasticizers in HME applications of polymethacrylate polymers in HME HME of ethylcellulose, hypromellose, and polyethylene oxide bioadhesion properties of polymeric films produced by HME taste masking using HME clinical studies, bioavailability and pharmacokinetics of HME products injection moulding and HME processing for pharmaceutical materials laminar dispersive & distributive mixing with dissolution and applications to HME technological considerations related to scale-up of HME processes devices and implant systems by HME an FDA perspective on HME product and process understanding improved process understanding and control of an HME process with near-infrared spectroscopy Hot-Melt Extrusion: Pharmaceutical Applications is an essential multidisciplinary guide to the emerging pharmaceutical uses of this processing technology for researchers in academia and industry working in drug formulation and delivery, pharmaceutical engineering and processing, and polymers and materials science. This is the first book from our brand new series Advances in Pharmaceutical Technology. Find out more about the series here.