MARC details
| 000 -LEADER |
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03167ntm a2200373 i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MY-KuUP |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251125110728.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS |
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t||||fr|||| 000 0 |
| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION |
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ta |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
230411t20222022my a|||fr|||| 001 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0009451 (Local) |
| Qualifying information |
Hardback |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMP |
| Language of cataloging |
eng |
| Transcribing agency |
UMP |
| Description conventions |
rda |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
FSTI .A45 2022 r Thesis |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Aminatul Sobirah Zahari, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Effect of molecular weight on Piezoelectric properties of electrospun polyvinylidene fluoride blended with cellulose nanocrystals / |
| Statement of responsibility, etc. |
Aminatul Sobirah Zahari |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Place of production, publication, distribution, manufacture |
Pahang : |
| Name of producer, publisher, distributor, manufacturer |
UMP, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2022 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Date of production, publication, distribution, manufacture, or copyright notice |
© 2022 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xv, 83 pages : |
| Other physical details |
Illustration ; |
| Dimensions |
30 cm.+ |
| Accompanying material |
1 CD ROM |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| Content type term |
text |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| Media type term |
unmediated |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| Media type term |
computer |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| Carrier type term |
volume |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| Carrier type term |
computer disc |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
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| Source |
rda |
| File type |
text file |
| Encoding format |
PDF |
| 500 ## - GENERAL NOTE |
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| General note |
Faculty of Industrial Sciences and Technology |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Master of Science) -- Universiti Malaysia Pahang – 2022 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Polyvinylidene fluoride (PVDF) has become widely used as a piezoelectric material in sensors, actuators, filters, and medical equipment. It is in high demand in industries owing to its high-quality features such as high flexibility, low cost, and light weight. PVDF is available in five types of crystalline phases, namely 𝛼, 𝛽, 𝛾, 𝛿 and 𝜀 -phases. All the crystalline phases are built based on the molecular chain conformation of -CH2CF2- in PVDF. Two common crystalline phases found in PVDF are 𝛼 and 𝛽-phases. The 𝛼-phase is easily found in PVDF melt, while the 𝛽-phase is produced via poling and annealing at high pressure. The piezoelectricity is dependent on the 𝛽-phase crystalline structure. Therefore, in order to increase the formation of the 𝛽 -phase, cellulose nanocrystals (CNCs) with various weights (1%-5%) were incorporated into PVDF using the electrospinning method. This method uses high voltage to fabricate electrospun PVDF/CNCs membranes. Analytical methods such as field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction XRD, universal testing machine (UTM), electrochemical impedance spectroscopy (EIS), and a piezoelectric meter were used to evaluate the impact of CNCs on the structural and electrical properties of electrospun PVDF. Based on the FTIR and XRD results, CNCs promoted the development of 𝛽-phase and improved crystallinity up to 75.62%. PVDF with 4% CNCs recorded the highest 𝛽-phase content of up to 91.74% with a maximum piezoelectric constant of 45.0 pC/N and a dielectric constant of 5.4. The mechanical properties of electrospun PVDF/CNCs membranes also improved after incorporating CNCs into PVDF. Therefore, the characteristics of electrospun PVDF/CNCs membranes improved significantly using CNCs. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Industrial Sciences and Technology |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Universities and colleges |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Thesis |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Thesis |