Browse IS/STAG - Portál UTB

Skip to page content
Website UTB
Portal title page UTB
Anonymous user Login Česky
Browse IS/STAG
Login Česky
  • Welcome
  • Browse IS/STAG
  • Applicant
  • Graduate
  • Web services
  • ECTS
  • User Info
Welcome
Browse IS/STAG
Information for applicantsElectronic applicationECTS arrivals
Getting startedAlumni ClubAbsolvent - website
Web services
ECTS
User Info

1st level navigation

  • Welcome
  • Browse IS/STAG
  • Applicant
  • Graduate
  • Web services
  • ECTS
  • User Info
User disconnected from the portal due to long time of inactivity.
Please, click this link to log back in.
(Sessions are disconnected after 240 minutes of inactivity. Note that mobile devices may get disconnected even sooner).

Prohlížení IS/STAG (S025)

Help

Main menu for Browse IS/STAG

  • Programmes and specializations.
  • Courses
  • Departments
  • Lecturers
  • Students
  • Examination dates
  • Timetable events
  • Theses, selected item
  • Pre-regist. study groups
  • Rooms
  • Rooms – all year
  • Free rooms – Semester
  • Free rooms – Year
  • Capstone project
  • Times overlap
  •  
  • Title page
  • Calendar
  • Help

Search for a Thesis

Print/export:  Bookmark this link in your browser so that you may quickly load this IS/STAG page in the future.
Only logged-in user will see student personal numbers.

Dates found, count: 1

Search result paging

Found 1 records Print Export to xls List URL
  Surname Name Title Thesis status   Supervisors Reviewers Type of thesis Date of def. Title
Student Type of thesis - - - - - - - - - -
Item shown in detail CHVÁTALOVÁ Includes the selected person into the timetable overlap calculation. Lenka On efficiency of specific nucleation in polypropylene On efficiency of specific nucleation in polypropylene Thesis finished and defended successfully (DUO).   Čermák Roman Obadal Martin Master's thesis 1149717600000 08.06.2006 On efficiency of specific nucleation in polypropylene Thesis finished and defended successfully (DUO).
Lenka CHVÁTALOVÁ Master's thesis 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX

Thesis info Účinnost specifické nukleace na polypropylén

  • Basic data
The document you are accessing is protected by copyright law. Unauthorised use may lead to criminal sanctions.
Name CHVÁTALOVÁ Lenka Includes the selected person into the timetable overlap calculation.
Acad. Yr. 2005/2006
Assigning department TUIP
Date of defence Jun 8, 2006
Type of thesis Master's thesis
Thesis status Thesis finished and defended successfully (DUO). Thesis finished and defended successfully (DUO).
Completeness of mandatory entries - The following mandatory fields are not filled in for this Thesis.: Title in English
Main topic On Efficiency of Specific Nucleation in Polypropylene
Main topic in English On efficiency of specific nucleation in polypropylene
Title according to student Účinnost specifické nukleace na polypropylén
English title as given by the student -
Parallel name On efficiency of specific nucleation in polypropylene
Subtitle -
Thesis supervisor Čermák Roman, prof. Ing. Ph.D.
External examiner Obadal Martin, doc. Ing. Ph.D.
Annotation Diplomová práce se zabývá účinkem specifického beta-nukleačního činidla NJ Star NU 100 na isotaktický polypropylen Borealis s rozdílnými indexy toku taveniny. Studie byla prováděna při různých krystalizačních podmínkách za použití diferenciální snímací kalorimetrie. Krystalický podíl a obsah beta-fáze byl stanoven rentgenograficky z difrakčních spekter. Vzniklá struktura vzorků byla zkoumána pomocí optického mikroskopu. Bylo zjištěno, že molekulární struktura (ITT) ovlivňuje účinnost nukleačního činidla pouze při jeho nízké koncentraci. Mimoto, důležitou roli hrají také krystalizační podmínky.
Annotation in English This master thesis deals with efficiency of the beta-specific nucleation agent NJ Star NU 100 in isotactic polypropylenes Borealis differing in melt flow indexes. This study was carried out at different crystallization conditions using a differential scanning calorimetry. The crystallinity and beta-form content have been determined from wide-angle X-ray scattering patterns. The structure of the samples has been examined using light microscopy. It has been found, that the molecular structure (MFI) influences the efficiency of the nucleator only in its very low concentration. Moreover, the crystallization conditions also play an important role.
Keywords isotaktický polypropylen, polymorfismus, -fáze, -fáze, specifická nulkeace, krystalizace
Keywords in English isotactic polypropylene, polymorphism, -form, -form, specific nucleation, crystallization
Length of the covering note 107
Language AN
Annotation
Diplomová práce se zabývá účinkem specifického beta-nukleačního činidla NJ Star NU 100 na isotaktický polypropylen Borealis s rozdílnými indexy toku taveniny. Studie byla prováděna při různých krystalizačních podmínkách za použití diferenciální snímací kalorimetrie. Krystalický podíl a obsah beta-fáze byl stanoven rentgenograficky z difrakčních spekter. Vzniklá struktura vzorků byla zkoumána pomocí optického mikroskopu. Bylo zjištěno, že molekulární struktura (ITT) ovlivňuje účinnost nukleačního činidla pouze při jeho nízké koncentraci. Mimoto, důležitou roli hrají také krystalizační podmínky.
Annotation in English
This master thesis deals with efficiency of the beta-specific nucleation agent NJ Star NU 100 in isotactic polypropylenes Borealis differing in melt flow indexes. This study was carried out at different crystallization conditions using a differential scanning calorimetry. The crystallinity and beta-form content have been determined from wide-angle X-ray scattering patterns. The structure of the samples has been examined using light microscopy. It has been found, that the molecular structure (MFI) influences the efficiency of the nucleator only in its very low concentration. Moreover, the crystallization conditions also play an important role.
Keywords
isotaktický polypropylen, polymorfismus, -fáze, -fáze, specifická nulkeace, krystalizace
Keywords in English
isotactic polypropylene, polymorphism, -form, -form, specific nucleation, crystallization
Research Plan The aim of this Master thesis is to assess an efficiency of the beta-specific nucleation in polypropylenes with different molecular parameters. Several grades of commercial-available polypropylenes differing in melt-flow indexes will be modified by beta-nucleator. Induced changes in polymorphic composition of polypropylenes will be examined via polarized-light microscopy, differential scanning calorimetry and wide-angle X-ray scattering
Research Plan
The aim of this Master thesis is to assess an efficiency of the beta-specific nucleation in polypropylenes with different molecular parameters. Several grades of commercial-available polypropylenes differing in melt-flow indexes will be modified by beta-nucleator. Induced changes in polymorphic composition of polypropylenes will be examined via polarized-light microscopy, differential scanning calorimetry and wide-angle X-ray scattering
Recommended resources
  1. BRYDSON, J.: Plastics Materials (7th Edition), Butterworth-Heinemann, 1999
  2. MAIER, C. - CALAFUT, T.: Polypropylene - The Definitive User's Guide and Databook, Plastics Design Library, 1998
  3. PHILLIPS, J. P. - MEZGHANI, K.: Polypropylene, Isotactic (Polymorphism), University of Tennessee, 1996
  4. KARGER - KOCSIS, J.: Polypropylene - An A-Z Reference, Kluwer Academic Publishers, 1998
  5. PRIDCHARD, G.: Plastics Additives - An A-Z References, Chapman & Hall, 1998
  6. CAMPBELL, D. - WHITE, J. R.: Polymer Characterization Physical Techniques, London, 1989
  7. CHERMISINOFF, N. P.: Polymer Characterization - Laboratory Techniques and, Analysis, Noyes/William Andrew Publishing, 1996
  8. HATAKEYAMA, T. - QUINN, F. X.: Thermal Analysis, Wiley & Sons, New York, 1994

další literatura dle doporučení vedoucího diplomové práce
Recommended resources
  1. BRYDSON, J.: Plastics Materials (7th Edition), Butterworth-Heinemann, 1999
  2. MAIER, C. - CALAFUT, T.: Polypropylene - The Definitive User's Guide and Databook, Plastics Design Library, 1998
  3. PHILLIPS, J. P. - MEZGHANI, K.: Polypropylene, Isotactic (Polymorphism), University of Tennessee, 1996
  4. KARGER - KOCSIS, J.: Polypropylene - An A-Z Reference, Kluwer Academic Publishers, 1998
  5. PRIDCHARD, G.: Plastics Additives - An A-Z References, Chapman & Hall, 1998
  6. CAMPBELL, D. - WHITE, J. R.: Polymer Characterization Physical Techniques, London, 1989
  7. CHERMISINOFF, N. P.: Polymer Characterization - Laboratory Techniques and, Analysis, Noyes/William Andrew Publishing, 1996
  8. HATAKEYAMA, T. - QUINN, F. X.: Thermal Analysis, Wiley & Sons, New York, 1994

další literatura dle doporučení vedoucího diplomové práce
Týká se praxe No
Enclosed appendices CD ROM
Appendices bound in thesis tables
Taken from the library Yes
Full text of the thesis
Appendices
Reviewer's report
Supervisor's report
Defence procedure record file