MARC details
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05285ntm a2200373 i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MY-KuUP |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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20251125110249.0 |
| 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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230329t20222022my a|||fr|||| 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0009536 (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) |
FTKKP .S87 2022 r Thesis |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Surenthiran A/l Gnanasekaran |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Isolation of nanofibrillated cellulose derived from n36 ananas comosus leaf via chemo-mechanical treatment and reinforcement in chitosan-based composite films / |
| Statement of responsibility, etc. |
Surenthiran A/l Gnanasekaran |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Place of production, publication, distribution, manufacture |
Kuantan, 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 |
xiii, 142 pages ; |
| Other physical details |
illustrations (some color) |
| 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 |
computer disc |
| Carrier type term |
rdacarrier |
| 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 Chemical and Process Engineering Technology |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Master of Science) -- Universiti Malaysia Pahang – 2021 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographical references |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
This study principally focused on discovering a green method for the utilization of N36 Pineapple leaves fibre (PALF) to highly potential material by chemo-mechanical method and reinforcement of NFC in chitosan matrix. Mechanical methods are simple and do not require chemical reagents; this type of method is outstanding due to their high production capacity and low cost. However, some disadvantages include the possibility of contamination and amorphization, the formation of irregular shapes with poor homogeneity on nanofibrillation, and high energy consumption with extended treatment time. As a preliminary study, the cellulose was isolated from PALF using steam-alkaline coupled treatment (SAC). In that order, the concentration of sodium hydroxide (NaOH) (0.5 wt.%, 1.0 wt.%) and retention of steam treatment (30 min, 60 min) were varied for pulping and subsequently bleached with sodium chlorite (NaClO2). The PALF and treated fibre were characterized using Scanning Electron Microscopy, Thermal Gravimetric Analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR) and Moisture analysis to study surface morphology, thermal stability, functional group and hydrophobicity respectively. Based on results, S60 A1 with 1 wt.% NaOH and 60 min steam treatment with 3 wt.% of NaClO2 exhibit excellent thermal stability and surface morphology, where the maximum degradation occurs at 333.50 ℃ which is 9% improvement compared to untreated PALF and loosen structure of fibre bundle with reduced diameter (4.720 mm). This cellulose was utilized for the second objective to produce Nanofibrillated cellulose (NFC). NFC was successfully defibrillated by ball milling with the presence of isopropyl alcohol. The effect of isopropyl alcohol (ratio of cellulose to IPA) and the milling time (15 and 30 min) on nano fibrillation was analyzed through characterization of NFCs including Field Emission Scanning electron microscopy (FESEM), X-ray diffraction (XRD), TGA, Zeta-potential (ZP), FTIR and Particle size analysis (PSA). Comparatively, NFC 1:4─15min which milled for 1:4 cellulose to IPA ratio for 15 min expresses desirable features in the concern of morphology, fibre size, yield, crystallinity, thermal stability, and homogeneity on the disintegration of PALF fibre. High thermal degradation temperature of 323 ℃ and crystallinity index of 67%. Moreover, it exhibits high yield (92.45%), excellent surface morphology, stability with low self-agglomeration, and uniformity in defibrillation with fibre diameter of 25.84±8.30 nm, zeta-potential of -32.31±2.51 and PDI of 0.103. Hence, addition of IPA gives significant impact on defibrillation by disrupt the intermolecular hydrogen bond, so that less milling time is convenient on production of NFC without causes severe damage on other properties. Sample of 1:4─15min NFC reinforced with different composition (1-5 wt.%) in chitosan (CS) matrix to refine and improve the neat chitosan biofilm. The effect of NFC content in chitosan matrix were analyzed through SEM, FTIR, optical transmittance, XRD, TGA, Solubility, Water vapor permeability (WVP), wettability, mechanical characterization, and soil burial. Fairly, the CS+3% biofilm express preferred feature in the concern of dispersion, water barrier properties, mechanical behavior enhancement. 33.6%, 58.81% and 70.63% decrement of swelling index, solubility, biodegradability indicates the better interaction through formation of hydrogen bond with amine groups from chitosan and hydroxyl groups of NFCs and the elevation of crystallinity level (11%) prevent the matrix to degrade. Moreover, it exhibits well refined mechanical and water vapor barrier properties with tensile strength of 83.6 MPa and WVP of 6.40×10−9gm-1h-1Pa-1. As conclusion, reinforcement of 3 wt.% of 1:4─15min NFC with CS improved the mechanical and barrier properties remarkably. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Chemical and Process Engineering 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 |
Theses |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Thesis |