Modification of rubber particle filled thermoplastic with high energy electrons [Elektronische Ressource] / vorgelegt von Kunlapaporn Sritragool
125 Pages
English

Modification of rubber particle filled thermoplastic with high energy electrons [Elektronische Ressource] / vorgelegt von Kunlapaporn Sritragool

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     Modification of Rubber Particle filled Thermoplastic with High Energy Electrons Von der Fakultät für Maschinenbau der Technischen Universität Chemnitz Genehmigte Dissertation zur Erlangung des akademischen Grades Doktoringenieur (Dr.-Ing.) vorgelegt von M.Sc. Kunlapaporn Sritragool geboren am 03.07.1980 in Uttaradit, Thailand eingereicht am 10.02.2010 Gutachter: Prof. Dr.-Ing. Michael Gehde Prof. Dr. rer. nat. habil. Gert Heinrich Chemnitz, den 10. 02.2010 URL: http://archiv.tu-chemnitz.de/pub/2010/0095    Bibliographic Description Bibliographic Description Sritragool, Kunlapaporn Modification of rubber particle filled thermoplastic with high energy electrons A Dissertation submitted to the Faculty of Mechanical Engineering, Chemnitz University of Technology, Institut für Fördertechnik und Kunststoffe 125 Pages, 57 Figures, 15 Tables, 102 References Abstract In present study, high energy electrons were used to modify blends based on RP and PP under two conditions: stationary and in-stationary conditions. Modification of blend under stationary condition is a process which is established in industrial application and where required absorbed dose is applied to form parts (after molding) at room temperature and in solid state.

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Published 01 January 2010
Reads 6
Language English
Document size 3 MB
Gutachter:
von M.Sc. Kunlapaporn Sritragool
Von der Fakultät für Maschinenbau der
Doktoringenieur
Technischen Universität Chemnitz
Modification of Rubber Particle filled Thermoplastic with High Energy Electrons
Prof. Dr. rer. nat. habil. Gert Heinrich
Chemnitz, den 10. 02.2010
URL: http://archiv.tu-chemnitz.de/pub/2010/0095
Dissertation
(Dr.-Ing.)
eingereicht am 10.02.2010
geboren am 03.07.1980 in Uttaradit, Thailand
Prof. Dr.-Ing. Michael Gehde
vorgelegt
zur Erlangung des akademischen Grades
Genehmigte
Bibliographic Description
Bibliographic Description
Sritragool, Kunlapaporn
Modification of rubber particle filled thermoplastic with high energy electrons
A Dissertation submitted to the Faculty of Mechanical Engineering, Chemnitz University of Technology, Institut für Fördertechnik und Kunststoffe
125 Pages, 57 Figures, 15 Tables, 102 References
Abstract
In present study, high energy electrons were used to modify blends based on RP and PP under two conditions: stationary and in-stationary conditions. Modification of blend under stationary condition is a process which is established in industrial application and where required absorbed dose is applied to form parts (after molding) at room temperature and in solid state. On the contrary, the modification of blend with high energy electrons under in-stationary condition is a new process (electron induced reactive processing) where required absorbed dose is applied to a molten state during melt mixing process. The modification of blend based on RP and PP under stationary condition resulted in slightly enhancement of tensile properties while the modification of this blend under in-stationary condition resulted in deterioration of tensile properties due to degradation of the PP matrix. Thus, special grafting agent (GA) is required for improving the tensile properties. The effect of different GAs on tensile, thermal, dynamic mechanical as well as morphological properties and melt flow properties of blends based on RP and PP were determined. The optimum absorbed dose for modification of blend based on RP and PP under both conditions was evaluated. In addition, the effect of treatment parameters of electron induced reactive processing was investigated.
Keywords:recycling, Rubber particle, Polypropylene, Grafting agent, Rubber Blend, Interfacial adhesion, Compatibility, High energy electrons, Stationary condition, In-stationary condition (electron induced reactive processing)
III
Acknowledgements
Acknowledgements
This present work was conducted between January 2007 and December 2009 at the Institut für Fördertechnik und Kunststoffe (IFK), Professur Kunststoffe at the Chemnitz University of Technology.
First of all, I would like to express my gratitude to my supervisor, Prof. Dr.-Ing. Michael Gehde who gave me a chance to work as well as study at this institute. I would also like to gratefully and sincerely thank him for his guidance and encouragement during my studies.
I would also like to express my deepest gratitude to my co-supervisor, Dr.-Ing. Hannes Michael and Dr. rer. nat. Uwe Gohs, who are most responsible for helping me complete the writing of this dissertation as well as challenging research that lies behind it. Without their kindness, guidance and encouragement, I could not have finished my dissertation.
My special thanks are due to the IFK, Professur Kunststoffe for providing financial support and technical as well as scientific background.
I would like to thank Dipl.-Ing. Jan März and Mr. Rocco Sickel for the assistance during the experimental works. I would also like to thank the other staff of IFK, Professur Kunststoffe and colleagues who supported and helped me during the works.
Finally, and most important, I would like to thank my mother and my aunt for their love, for educating me, for support, for listening to my complaint and for believing in me.
Chemnitz, February 2010
 Kunlapaporn Sritragool
V
List of Abbreviations and Symbols
Bibliographic Description
Contents
Acknowledgement
 23
19
 5.1 Materials used
5 Experimental
 31
3 Aim of study
4 Tasks of study
 11
 2.3 Polymer modification with high energy electrons
 2.2.1 Enhancement of interfacial adhesion via compatibilization technique 7
 2.2.2 Enhancement of interfacial adhesion via surface treatment
 2.4 Electron induced reactive processing
21
 5.3 Electron treatment
 10
2 State of the art
XI
 21
 15
17
V
1 Introduction
 28
 5.4 Preparation dumbbell-shaped specimen 30
VII
 5.2 Preparation of blends
Contents
 2.2 Utilization of rubber particle in thermoplastics
 2.1 Size reductiontechniques used in production of rubber particle
 5.5 Characterization methods
5
7
5
1
III
 with DTMPTA
 6.5.4 Effect of new processing parameters on properties of e-blend_dyn 81
VIII
 6.3.1 Characterization of modified PP (PP*)
 6.4.3 Effect of dose on properties of e-blend_stat with different
 6.4.4 Recyclability of e-blend_stat with DTMPTA modified at absorbed 65
 dose of 80 kGy
 6.4.2 Effect of grafting agent on properties of e-blend_stat modified at 53
 6.5.2 Effect of grafting agent on properties of e-blend_dyn modified at 71
 without grafting agent
 6.1.2 Electron induced reactive processing
 6.4 Rubber particle/polypropylene e-blend_stat
 35
 absorbed dose of 40 kGy
 6.1.3 Processing parameters
 35
 6.1 Experimental setup
6 Results and discussion
 70
 70
 61
 45
 6.4.1 Effect of dose on properties of e-blend_stat without grafting agents 51
 38
 36
 6.3 Rubber particle/polypropylene/modified polypropylene blend
 6.1.1 Stationary treatment
 51
 45
 46
 6.5.3 Effect of dose on properties of e-blend_dyn with DTMPTA
 35
 6.2 Comparison of blend prepared by twin screw extruder and internal mixer 44
 6.5 Rubber particle/polypropylene e-blend_dyn
 6.3.2 Effect of modified polypropylene on properties of blend
 absorbed dose of 40 kGy
 6.5.1 Effect of high energy electrons on properties of e-blend_dyn
 77
 grafting agents
Contents
Contents  6.6 Comparisons of e-blend_stat as well as e-blend_dyn with EA
7 Conclusions and further study
8 References
Appendix A
Curriculum Vitae
IX
 86
91
97
109
111
CPE
DCP
AN
AAc
Electron Beam
Ethylene-Acrylic Acid
AAm
XI
Elastomeric Alloy
1,4-Butabediol Diacrylate
List of Abbreviations and Symbols List of Abbreviations and Symbols
DHBP
DPGDA
Dicumyl Peroxide
BDDA
ATU
Chlorinated Polyethylene
EA
EAA
EB
2,5-dimethyl-2,5-di(tert-butylperoxy)hexane
Ethylene Vinyl Acetate copolymer
Epoxidized Natural Rubber/Vinyl Monomer-grafted-Linear Low Density Polyethylene
Ethylene Propylene Diene Monomer rubber
Electron Spectroscopy for Chemical Analysis
ENR/LLDPE-g-VM
EPDM
ESCA
Dipropyleneglycol Diacrylate
Dtrimethylol Propane Tetraacrylate
Acrylonitrile
Acrylamine
Acrylic Acid
Abbreviations
Benzyl Dimethyl Ketal
A-TMMT
DTMPTA
BDK
DEGDMA
EVA
1-Allyl-2-Thiourea
Tetramethylolmethane Tetraacrylate
Diethylene Glycol Dimethacrylate