Rubber_Curing_Systems.pdf

Report 144

Rubber Curing

Systems

R.N. Datta

Volume 12, Number 12, 2002

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A commissioned expert review, discussing a key topic of current interest, and referring to the References and

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Item 1

Macromolecules

33, No.6, 21st March 2000, p.2171-83

EFFECT OF THERMAL HISTORY ON THE RHEOLOGICAL

BEHAVIOR OF THERMOPLASTIC POLYURETHANES

Pil Joong Yoon; Chang Dae Han

Akron,University

Source of

original article

Title

Authors and

affiliation

The effect of thermal history on the rheological behaviour of ester- and

ether-based commercial thermoplastic PUs (Estane 5701, 5707 and 5714

from B.F.Goodrich) was investigated. It was found that the injection

moulding temp. used for specimen preparation had a marked effect on the

variations of dynamic storage and loss moduli of specimens with time

observed during isothermal annealing. Analysis of FTIR spectra indicated

that variations in hydrogen bonding with time during isothermal annealing

very much resembled variations of dynamic storage modulus with time

during isothermal annealing. Isochronal dynamic temp. sweep experiments

indicated that the thermoplastic PUs exhibited a hysteresis effect in the

heating and cooling processes. It was concluded that the microphase

separation transition or order-disorder transition in thermoplastic PUs could

not be determined from the isochronal dynamic temp. sweep experiment.

The plots of log dynamic storage modulus versus log loss modulus varied

with temp. over the entire range of temps. (110-190C) investigated. 57 refs.

GOODRICH B.F.

USA

Accession no.771897

Abstract

Companies or

organisations

mentioned

Location

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Volume 1

Report 3

Volume 4

Report 37

Advanced Composites , D.K. Thomas, RAE, Farnborough.

Polymers in Aerospace Applications , W.W. Wright,

University of Surrey.

Report 4

Liquid Crystal Polymers , M.K. Cox, ICI, Wilton.

Report 39

Polymers in Chemically Resistant Applications,

D. Cattell, Cattell Consultancy Services.

Report 5

CAD/CAM in the Polymer Industry , N.W. Sandland

and M.J. Sebborn, Cambridge Applied Technology.

Report 41

Failure of Plastics, S. Turner, Queen Mary College.

Report 8

Engineering Thermoplastics , I.T. Barrie, Consultant.

Report 11

Communications Applications of Polymers ,

R. Spratling, British Telecom.

Report 42

Polycarbonates, R. Pakull, U. Grigo, D. Freitag, Bayer

AG.

Report 12

Process Control in the Plastics Industry ,

R.F. Evans, Engelmann & Buckham Ancillaries.

Report 43

Polymeric Materials from Renewable Resources ,

J.M. Methven, UMIST.

Report 44

Flammability and Flame Retardants in Plastics ,

J. Green, FMC Corp.

Volume 2

Report 45

Composites - Tooling and Component Processing ,

N.G. Brain, Tooltex.

Report 13

Injection Moulding of Engineering Thermoplastics,

A.F. Whelan, London School of Polymer Technology.

Report 46

Quality Today in Polymer Processing , S.H. Coulson,

J.A. Cousans, Exxon Chemical International Marketing.

Report 14

Polymers and Their Uses in the Sports and Leisure

Industries , A.L. Cox and R.P. Brown, Rapra

Technology Ltd.

Report 47

Chemical Analysis of Polymers , G. Lawson, Leicester

Polytechnic.

Report 15

Polyurethane, Materials, Processing and

Applications , G. Woods, Consultant.

Volume 5

Report 16

Polyetheretherketone , D.J. Kemmish, ICI, Wilton.

Report 17

Extrusion , G.M. Gale, Rapra Technology Ltd.

Report 49

Blends and Alloys of Engineering Thermoplastics ,

H.T. van de Grampel, General Electric Plastics BV.

Report 18

Agricultural and Horticultural Applications of

Polymers , J.C. Garnaud, International Committee for

Plastics in Agriculture.

Report 50

Automotive Applications of Polymers II ,

A.N.A. Elliott, Consultant.

Report 19

Recycling and Disposal of Plastics Packaging ,

R.C. Fox, Plas/Tech Ltd.

Report 51

Biomedical Applications of Polymers , C.G. Gebelein,

Youngstown State University / Florida Atlantic University.

Report 20

Pultrusion , L. Hollaway, University of Surrey.

Report 52

Polymer Supported Chemical Reactions , P. Hodge,

University of Manchester.

Report 21

Materials Handling in the Polymer Industry ,

H. Hardy, Chronos Richardson Ltd.

Report 53

Weathering of Polymers , S.M. Halliwell, Building

Research Establishment.

Report 22

Electronics Applications of Polymers , M.T.Goosey,

Plessey Research (Caswell) Ltd.

Report 54

Health and Safety in the Rubber Industry , A.R. Nutt,

Arnold Nutt & Co. and J. Wade.

Report 23

Offshore Applications of Polymers , J.W.Brockbank,

Avon Industrial Polymers Ltd.

Report 55

Computer Modelling of Polymer Processing ,

E. Andreassen, Å. Larsen and E.L. Hinrichsen, Senter for

Industriforskning, Norway.

Report 24

Recent Developments in Materials for Food

Packaging , R.A. Roberts, Pira Packaging Division.

Volume 3

Report 56

Plastics in High Temperature Applications ,

J. Maxwell, Consultant.

Report 25

Foams and Blowing Agents , J.M. Methven, Cellcom

Technology Associates.

Report 57

Joining of Plastics , K.W. Allen, City University.

Report 58

Physical Testing of Rubber , R.P. Brown, Rapra

Technology Ltd.

Report 26

Polymers and Structural Composites in Civil

Engineering , L. Hollaway, University of Surrey.

Report 59

Polyimides - Materials, Processing and Applications ,

A.J. Kirby, Du Pont (U.K.) Ltd.

Report 27

Injection Moulding of Rubber , M.A. Wheelans,

Consultant.

Report 60

Physical Testing of Thermoplastics , S.W. Hawley,

Rapra Technology Ltd.

Report 28

Adhesives for Structural and Engineering

Applications , C. O’Reilly, Loctite (Ireland) Ltd.

Report 29

Polymers in Marine Applications , C.F.Britton,

Corrosion Monitoring Consultancy.

Volume 6

Report 61

Report 30

Non-destructive Testing of Polymers , W.N. Reynolds,

National NDT Centre, Harwell.

Food Contact Polymeric Materials , J.A. Sidwell,

Rapra Technology Ltd.

Report 31

Silicone Rubbers , B.R. Trego and H.W.Winnan,

Dow Corning Ltd.

Report 62

Coextrusion, D. Djordjevic, Klöckner ER-WE-PA GmbH.

Report 63

Conductive Polymers II , R.H. Friend, University of

Cambridge, Cavendish Laboratory.

Report 32

Fluoroelastomers - Properties and Applications ,

D. Cook and M. Lynn, 3M United Kingdom Plc and

3M Belgium SA.

Report 64

Designing with Plastics , P.R. Lewis, The Open University.

Report 65

Decorating and Coating of Plastics , P.J. Robinson,

International Automotive Design.

Report 33

Polyamides , R.S. Williams and T. Daniels,

T & N Technology Ltd. and BIP Chemicals Ltd.

Report 66

Reinforced Thermoplastics - Composition, Processing

and Applications, P.G. Kelleher, New Jersey Polymer

Extension Center at Stevens Institute of Technology.

Report 34

Extrusion of Rubber , J.G.A. Lovegrove, Nova

Petrochemicals Inc.

Report 35

Polymers in Household Electrical Goods , D.Alvey,

Hotpoint Ltd.

Report 67

Plastics in Thermal and Acoustic Building Insulation ,

V.L. Kefford, MRM Engineering Consultancy.

Report 36

Developments in Additives to Meet Health and

Environmental Concerns , M.J. Forrest, Rapra

Technology Ltd.

Report 68

Cure Assessment by Physical and Chemical

Techniques , B.G. Willoughby, Rapra Technology Ltd.

Report 69

Toxicity of Plastics and Rubber in Fire , P.J. Fardell,

Building Research Establishment, Fire Research Station.

Report 94

Compressive Behaviour of Composites ,

C. Soutis, Imperial College of Science, Technology

and Medicine.

Report 70

Acrylonitrile-Butadiene-Styrene Polymers ,

M.E. Adams, D.J. Buckley, R.E. Colborn, W.P. England

and D.N. Schissel, General Electric Corporate Research

and Development Center.

Report 95

Thermal Analysis of Polymers , M. P. Sepe, Dickten &

Masch Manufacturing Co.

Report 96

Polymeric Seals and Sealing Technology , J.A. Hickman,

St Clair (Polymers) Ltd.

Report 71

Rotational Moulding, R.J. Crawford, The Queen’s

University of Belfast.

Report 72

Advances in Injection Moulding , C.A. Maier,

Econology Ltd.

Volume 9

Report 97

Rubber Compounding Ingredients - Need, Theory

and Innovation, Part II: Processing, Bonding, Fire

Retardants , C. Hepburn, University of Ulster.

Volume 7

Report 98

Advances in Biodegradable Polymers , G.F. Moore &

S.M. Saunders, Rapra Technology Ltd.

Report 73

Reactive Processing of Polymers , M.W.R. Brown,

P.D. Coates and A.F. Johnson, IRC in Polymer Science

and Technology, University of Bradford.

Report 99

Recycling of Rubber , H.J. Manuel and W. Dierkes,

Vredestein Rubber Recycling B.V.

Report 74

Speciality Rubbers , J.A. Brydson.

Report 100

Photoinitiated Polymerisation - Theory and

Applications , J.P. Fouassier, Ecole Nationale Supérieure

de Chimie, Mulhouse.

Report 75

Plastics and the Environment , I. Boustead, Boustead

Consulting Ltd.

Report 76

Polymeric Precursors for Ceramic Materials ,

R.C.P. Cubbon.

Report 101

Solvent-Free Adhesives , T.E. Rolando, H.B. Fuller

Company.

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Advances in Tyre Mechanics , R.A. Ridha, M. Theves,

Goodyear Technical Center.

Report 102

Plastics in Pressure Pipes , T. Stafford, Rapra

Technology Ltd.

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Gas Assisted Moulding , T.C. Pearson, Gas Injection Ltd.

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PVC - Compounds, Processing and Applications ,

J.Leadbitter, J.A. Day, J.L. Ryan, Hydro Polymers Ltd.

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Plastics Profile Extrusion , R.J. Kent, Tangram

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Rubber Compounding Ingredients - Need, Theory

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Antidegradants and Particulate Fillers for General

Purpose Rubbers , C. Hepburn, University of Ulster.

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Rubber Extrusion Theory and Development ,

B.G. Crowther.

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Properties and Applications of Elastomeric

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Anti-Corrosion Polymers: PEEK, PEKK and Other

Polyaryls , G. Pritchard, Kingston University.

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High Performance Polymer Fibres , P.R. Lewis,

The Open University.

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Thermoplastic Elastomers - Properties and Applications ,

J.A. Brydson.

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Chemical Characterisation of Polyurethanes ,

M.J. Forrest, Rapra Technology Ltd.

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Advances in Blow Moulding Process Optimization ,

Andres Garcia-Rejon,Industrial Materials Institute,

National Research Council Canada.

Volume 10

Report 83

Molecular Weight Characterisation of Synthetic

Polymers , S.R. Holding and E. Meehan, Rapra

Technology Ltd. and Polymer Laboratories Ltd.

Report 109

Rubber Injection Moulding - A Practical Guide ,

J.A. Lindsay.

Report 84

Rheology and its Role in Plastics Processing ,

P. Prentice, The Nottingham Trent University.

Report 110

Long-Term and Accelerated Ageing Tests on Rubbers ,

R.P. Brown, M.J. Forrest and G. Soulagnet,

Rapra Technology Ltd.

Report 111

Polymer Product Failure , P.R. Lewis,

The Open University.

Volume 8

Report 112

Polystyrene - Synthesis, Production and Applications ,

J.R. Wünsch, BASF AG.

Report 85

Ring Opening Polymerisation, N. Spassky, Université

Pierre et Marie Curie.

Report 113

Rubber-Modified Thermoplastics , H. Keskkula,

University of Texas at Austin.

Report 86

High Performance Engineering Plastics ,

D.J. Kemmish, Victrex Ltd.

Report 114

Developments in Polyacetylene - Nanopolyacetylene ,

V.M. Kobryanskii, Russian Academy of Sciences.

Report 87

Rubber to Metal Bonding , B.G. Crowther, Rapra

Technology Ltd.

Report 115

Metallocene-Catalysed Polymerisation , W. Kaminsky,

University of Hamburg.

Report 88

Plasticisers - Selection, Applications and Implications ,

A.S. Wilson.

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Compounding in Co-rotating Twin-Screw Extruders ,

Y. Wang, Tunghai University.

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Polymer Membranes - Materials, Structures and

Separation Performance , T. deV. Naylor, The Smart

Chemical Company.

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Rapid Prototyping, Tooling and Manufacturing ,

R.J.M. Hague and P.E. Reeves, Edward Mackenzie

Consulting.

Report 90

Rubber Mixing , P.R. Wood.

Report 91

Recent Developments in Epoxy Resins , I. Hamerton,

University of Surrey.

Report 118

Liquid Crystal Polymers - Synthesis, Properties and

Applications , D. Coates, CRL Ltd.

Report 92

Continuous Vulcanisation of Elastomer Profiles ,

A. Hill, Meteor Gummiwerke.

Report 119

Rubbers in Contact with Food , M.J. Forrest and

J.A. Sidwell, Rapra Technology Ltd.

Report 93

Advances in Thermoforming , J.L. Throne, Sherwood

Technologies Inc.

Report 120

Electronics Applications of Polymers II , M.T. Goosey,

Shipley Ronal.

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