Polymer Processing Instabilities: Control and Understanding, 1st Edition (Hardback) book cover

Polymer Processing Instabilities

Control and Understanding, 1st Edition

Edited by Savvas G. Hatzikiriakos, Kalman B. Migler

CRC Press

488 pages

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Hardback: 9780824753863
pub: 2004-11-30
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Description

Polymer Processing Instabilities: Control and Understanding offers a practical understanding of the various flows that occur during the processing of polymer melts. The book pays particular attention to flow instabilities that affect the rate of production and the methods used to prevent and eliminate flow instabilities in order to increase production rates and enhance manufacturing efficiency.

Polymer Processing Instabilities: Control and Understanding summarizes experimental observations of flow instabilities that occur in numerous processing operations such as extrusion, injection molding, fiber spinning, film casting, and film blowing for a wide range of materials, including most commodity polymers that are processed as melts at temperatures above their melting point or as concentrated solutions at lower temperatures. The book first presents the fundamental principles in rheology and flow instabilities. It relates the operating conditions with flow curves, the critical wall shear stress for the onset of the instabilities, and new visualization techniques with numerical modeling and molecular structure. It reviews one-dimensional phenomenological relaxation/oscillation models describing the experimental pressure and flow rate oscillations, analyzes the gross melt fracture (GMF) instability, and examines how traditional and non-traditional processing aids eliminate melt fracture and improve polymer processability. It supplies a numerical approach for the investigation of the linear viscoelastic stability behavior of simplified injection molding flows and examines a newly discovered family of instabilities that occur in co-extrusion.

Polymer Processing Instabilities: Control and Understanding is unique in that it fills a gap in the polymer processing literature where polymer flow instabilities are not treated in-depth in any book. It summarizes state-of-the-art developments in the field, particularly those of the last ten years, and contains significant data based on this research.

Reviews

"This is a valuable resource and should be of interest to research students, scientists and practitioners studying polymer processes. It is a must for students of polymer rheology."

-Dr. S.D. Rostami C.Eng. MIMMM, Materials World, Vol. 14, No. 9, September 2006

"[A] worthwhile contribution to the literature on instabilities in polymer processing. The book is most useful to those involved in in-depth analysis of instabilities, such as academics, researchers, and process engineers interested in fundamental approaches to understanding instabilities."

- Polymer News, June 2005

Table of Contents

INTRODUCTION

Overview of Processing Instabilities, S.G. Hatzikiriakos and K.B. Migler

VISCOELASTICITY AND BASIC FLOWS

Elements of Rheology, J.M. Dealy

Secondary Flow Instabilites, E. Mitsoulis

Wall Slip - Measurement and Modeling Issues, L.A. Archer

MELT FRACTURE AND RELATED PHENOMENA

Sharkskin Instability in Extrusion, K. Migler

Slip-Stick Instability, G. Georgiou

Gross Melt Fracture in Extrusion, J.M. Dealy and S. Kim

Conventional Polymer Processing Additives, S.B. Kharchenko, S.G. Hatzikiriakos, and K.B. Migler

Boron Nitride-based Polymer Processing Aids, S.G. Hatzikiriakos

APPLICATIONS

Draw Resonance in Film Casting, A. Co

Fiber Spinning and Film Blowing Instabilities, H.W. Jung and J.C. Hyun

Co-extrusion Instabilities, J. Dooley

Tiger Stripes: Instabilities in Injection Molding, A.C.B. Bogaerds, G.W.M. Peters, and F.P.T. Baaijens

About the Series

Chemical Industries

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Subject Categories

BISAC Subject Codes/Headings:
SCI013060
SCIENCE / Chemistry / Industrial & Technical
TEC021000
TECHNOLOGY & ENGINEERING / Material Science
TEC055000
TECHNOLOGY & ENGINEERING / Textiles & Polymers