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Vratislav DUCHÁČEK

Professor

University of Chemistry and Technology, Prague
Faculty of Chemical Technology
Department of Polymers
Technická 5
CZ-166 28 Prague 6
Czech Republic

room: A214
phones: (+420) 2 2044 4120
fax: (+420) 2 2044 3175
e-mail:  Vratislav.Duchacek@vscht.cz

Education

  • D.Sc., Institute of Chemical Technology, Prague, 1991, Vulcanisation and co-vulcanisation of rubbers with poly(vinyl chloride)
  • Ph.D., Institute of Chemical Technology, Prague,  1967, Vulcanisation of unsaturated rubbers with tetraalkylthiuram disulphides
  • M.Sc.  Institute of Chemical Technology, Prague, 1963

Positions

  • Institute of Chemical Technology, Prague, Full Professor, 1993-
  • Institute of Chemical Technology, Prague, Associated Professor, 1980-1993
  • Institute of Chemical Technology, Prague,1968-1980, Scientist
  • Institute of Chemical Technology, Prague, Engineer-Assistant, 1967-1968

Teaching

  • Polymeric Materials (B.Sc.)
  • Crude for Polymeric Materials (B.Sc.)
  • Elastomers and Rubber Compounding Materials (M.Sc.)
  • Chemical Aspects of Processing and Application of Polymers (Ph.D.)
  • Bachelor, Diploma, and Doctoral Thesis supervisor

Grant projects in last 5 years:

  • Ministry of Industry and Trade of the Czech Republic, program TANDEM, project FT-TA3/109  Rubber with green plasticizers: properties of rubber and final material, possibilities of application,  development of new types and technology of their manufacture, research team member, 2006 – 2009

Collaboration with industry in the last 10 years:

Different Czech companies, e.g.:

  • Kaučuk (Synthos) Kralupy nad Vltavou
  • Škoda Auto Mladá Boleslav
  • Mitas (CGS Tyres) Praha
  • Wicke CZ Zlín
  • K.O.LLY Praha

(Co)Author of 65 Research reports for industry

Committees and advisory boards

1981 -               Member of Editorial Board, Plasty a kaučuk (Plastics and Rubber)
1984 - 1986       Scientific Consultant, United Nations Economic Commission for Europe
1993 -               Member of Board, Czech Society of Industrial Chemistry (Vice-chairman 2010 - )
1993 -               Chairman of Rubber Division, Czech Society of Industrial Chemistry
1993 -               Member of International Rubber Conference Organisation Committee (chairman 2002 - 2003),  London
1993 -               Member of Editorial Board, Journal of Polymer Engineering
1994 -               Member of Scientific Council of Faculty of Chemical Technology, ICT Prague
1994 - 2006       Head of Department of Polymers at Faculty of Chemical Technology, ICT Prague
1994 - 1998       Member of Grant Agency of the Czech Republic (chairman of sub-committee 1995 - 1997)
1997 - 2003       Member of Scientific Council of Faculty of Chemistry, University of Technology in Brno
1999 -              Member of Scientific Council of Faculty of Technology in Zlín
2000 - 2007       Expert Referee, Polymer International
2003 -              Consulting Editor, Contemporary Who's Who
2003 - 2007       Member of Scientific Council, Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Prague
2007 -               Member of Scientific Council of Tomas Bata University in Zlín
2007 -               Member of Editorial Board, The Open Macromolecules Journal
2008 -               Member of Council, Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Prague

Chairman of Advisory Board of Ph.D. study program Technology of macromolecular compounds at ICT Prague,
Member of Advisory Boards at Faculty of Chemical Technology, University of Pardubice, Faculty of Chemistry, University of Technology in Brno, Faculty of Science, Masaryk University in Brno, and Faculty of Science, Charles University in Prague

Memberships, fellowships and awards

Eminent Fellow (F.A.B.I.) of the American Biographical Institute, 1995
Twentieth Century Achievement Award, American Biographical Institute, 1995
Fellow (FIBA) of the International Biographical Centre, 1995
Active member of the New York Academy of Sciences, 1995
Honorary Member of the American Biographical Institute Research Board of Advisors, 1996
Honorary Member of the International Biographical Centre Advisory Council, 1997
Honorary Professor of the Albert Schweitzer International University, 2000
Honorary Member of the International Biographical Centre Research Council, 2003
Silver Medal of the Faculty of Chemistry, University of Technology in Brno, 2004

Research Interests

Research is oriented towards the processing of elastomers and plastics with aim of evaluation of modification of polymers and polymer blends including their crosslinking, additivation, compatibilisation, and recycling.

Roles of alkoxy titanates and zirconates as multifunctional agents for polymers (Invited paper)

Alkoxy titanates and zirconates as coupling agents chemically bond inorganic as well as organic fillers and polymers via proton coordination without the need of water of condensation as with alkoxy silanes. Thermally stable alkoxy titanates and zirconates function as in-situ metallocene-like polymerisation and copolymerisation catalysts for filled or unfilled polymers during the plastication resulting in their significantly faster thermoplastic processing at lower temperatures. The catalysis effect is permanent and recyclable. Novel trialkoxy zirconates are shown to be transparent, permanent, non-blooming and non-moisture dependent multifunctional agents.

    originál

Ducháček, V.; Kuta, A.; Šimek J.  Polimery (Warsaw) 2004, 49(3), 159-162

 

Recent and present trends in the commodity/specialty polymers relationship (Invited special lecture)

 In the second half of the outgoing century, polymeric materials have been a major facilitator of technical progress, which has been the basis for many elements of our standard of living today. Polymer consumption looks back at an impressive growth. The increase over the years has been fairly steady, with only minor dips during the two oil crises, and will continue into the 21st century because of the growing world population and global striving for a higher standard of living. Looking at the polymer development in the 21st century, we can see the continuation of good product availability and changes in terms of globalisation and restructuring.

A forecast is always risky and often likely to be wrong, as the two independent forecasts of plastics manufacture development for the mid-1990s made in mid-1970 demonstrates. The interaction of process, product, and market developments indicates that established (commodity) polymers will continue to grow well. Against the line of them, it is going to be difficult for new (speciality) polymers to establish themselves in a group of well-positioned polymers.

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Ducháček V. Current trends in the commodity/specialty polymers relationship, 23rd Discussion conference 2005, Prague June 26-30, 2005 (Special lecture)

 

Thermoplastic vulcanisates

Thermoplastic vulcanisates represent a relatively young, but thus early widely used group of thermoplastic elastomers. They are mixtures of thermoplastics with elastomers. Their morphology is based on a dispersion of fully vulcanised rubber in a thermoplastic matrix. For this reason, a special mixing process is needed for their production. However their processing is easy. They do not require expensive manufacturing and processing machinery, and have a wide range of properties suitable for different applications. 

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Dubinin, S.; Ducháček V. Chem. Listy  2008, 102 (3), 166-172

 

Thermoplastic elastomers on the basis of HDPE/SBR blends (Invited key lecture)

The aim of the work was to create maximally cheap thermoplastic elastomer, at the same time possessing appropriate properties. First of all price analysis has been performed. The cheapest variants of thermoplastic elastomer blends are combinations polyethylene (PE)/butadiene-styrene rubber (SBR) and polypropylene (PP)/SBR. A study of thermodynamic aspects has showed potential supremacy of high-density polyethylene (HDPE)/SBR blends over PP/SBR ones.

 

CONCLUSIONS

 

  • HDPE/SBR blends can be dynamically vulcanised with a standard cure system and the resulting material shows typical properties of thermoplastic elastomers or if you like thermoplastic vulcanisates.

 

  • Hardnessrangesfrom 24 to 38 Shore D, tensilestrengthfrom 9 to 15 MPa, compression set from 45 to 66 %, elongationatbreakisabout 400 %. Minimum tensile set reachedwas 12 %.

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Ducháček, V.: RubberCon 2011. European Collaborative IRCO Conference, Bratislava 2011

  

List of the most important publications in last 5 years

  • V.Ducháček:
    Urychlovače vulkanizace (Vulcanisation Accelerators)
    Czech Society of Industrial Chemistry/Rubber Division, Zlín 2013, ISBN 978-80-02-02429-3
  • S.Dubinin, Z.Hrdlička, J.Šimek, A.Kuta, V.Ducháček:
    Thermoplastic Vulcanizates Based on Polyethylene and Styrene-Butadiene Rubber. Part II: Blends without Dynamic Vulcanization
    KGK - Kautsch. Gummi Kunstst. 65 (1-2),23-29(2012)
  • Z.Hrdlička, A.Kuta, M. Hrdličková, V.Ducháček:
    Properties of Natural and Synthetic Rubber Recycled via High-Pressure High-Temperature Sintering
    KGK - Kautsch. Gummi Kunstst. 64 (9),22-25(2011)
  • S.Dubinin, Z.Hrdlička, V.Ducháček:
    Thermoplastic Vulcanizates Based on Polyethylene and Styrene-Butadiene Rubber. Part I: Theoretical Aspects
    KGK - Kautsch. Gummi Kunstst. 64 (6),20-23(2011)
  • V.Ducháček:
    Změkčovadla (Plasticizers)
    Czech Society of Industrial Chemistry/Rubber Division, Zlín 2011, ISBN 978-80-02-02287-9
  • V.Ducháček:
  • Světlá plniva (Non-Black Fillers)
    Czech Society of Industrial Chemistry/Rubber Division, Zlín 2010, ISBN 978-80-02-02203-9
  • Z.Hrdlička, A.Kuta, V.Ducháček:
    Energy Reduction at Processing of Styrene-Butadiene Rubber by Modification with Liquid Polybutadiene
    Kaut. Gummi Kunst. 62 (1-2),28-34(2009)
  • A.Kuta, Z.Hrdlička, V.Ducháček:
    Very Fast Vulcanising Systems
    Chem. Listy 103 (13), 21-24 (2009)
  • J.Šimek, V.Dočkalová, V.Ducháček:
    Posibilities of polyamide 12 with poly(vinyl chloride)blends recycling
    Polimery (Warsaw) 53, 138-143 (2008)
  • S.Dubinin, V.Ducháček:
    Termoplastické vulkanizáty (Thermoplastic Vulcanisates)
    Chem. Listy 102, 166-172 (2008)
  • V.Ducháček:
    Gumárenské zpracovatelské přísady (Rubber Processing Additives)
    Czech Society of Industrial Chemistry/Rubber Division, Zlín 2008, ISBN 978-80-02-01993-0

Author or co-author of over 120 original scientific communications, 200 conference lectures, short communications and posters, 40 lectures at different educational, research and industry institutions, 90 review papers, 30 book publications, 3  patents, and 65 research reports.

Complete list of publications (pdf)

Aktualizováno: 5.10.2015 15:34, Autor: Jan Merna

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