Production and characterization of degradable polyethelene terephthalete using pro-degradant additives, polylactic acid and polylactic acid grafted maleic anhydride / (Record no. 91263)

MARC details
000 -LEADER
fixed length control field 04587ntm a2200373 i 4500
003 - CONTROL NUMBER IDENTIFIER
control field MY-KuUP
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20251125105434.0
006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS
fixed length control field t||||fr|||| 000 0
007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION
fixed length control field ta
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 191120t20192019my a|||fram|| 000 0 eng d
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number THE0008456(Local)
Qualifying information hardback
040 ## - CATALOGING SOURCE
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)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) FKKSA .A84 2019 r Thesis
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name Ashwinder Chelliah,
Relator term author.
245 10 - TITLE STATEMENT
Title Production and characterization of degradable polyethelene terephthalete using pro-degradant additives, polylactic acid and polylactic acid grafted maleic anhydride /
Statement of responsibility, etc. Ashwinder Chelliah
264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE
Place of production, publication, distribution, manufacture Kuantan, Pahang :
Name of producer, publisher, distributor, manufacturer UMP,
Date of production, publication, distribution, manufacture, or copyright notice 2019
264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE
Date of production, publication, distribution, manufacture, or copyright notice © 2019
300 ## - PHYSICAL DESCRIPTION
Extent xvi, 116 pages :
Other physical details illustrations (some color) ;
Dimensions 30 cm. +
Accompanying material 1 CD-ROM
336 ## - CONTENT TYPE
Content type term text
Source rdacontent
336 ## - CONTENT TYPE
Content type term text
Source rdacontent
337 ## - MEDIA TYPE
Media type term unmediated
Source rdamedia
337 ## - MEDIA TYPE
Media type term computer
Source rdamedia
338 ## - CARRIER TYPE
Carrier type term volume
Source rdacarrier
338 ## - CARRIER TYPE
Carrier type term computer disc
Source rdacarrier
347 ## - DIGITAL FILE CHARACTERISTICS
File type text file
Encoding format PDF
Source rda
500 ## - GENERAL NOTE
General note Faculty of Chemical and Natural Resources Engineering
502 ## - DISSERTATION NOTE
Dissertation note Thesis (Master of Science) -- Universiti Malaysia Pahang – 2019
504 ## - BIBLIOGRAPHY, ETC. NOTE
Bibliography, etc. note Includes bibliographical references
520 3# - SUMMARY, ETC.
Summary, etc. Overwhelming environmental concern due to the usage of synthetic plastics such as polyethylene terephthalate (PET) has continuously evoke to the development of biodegradable plastic in the packaging segment. As an effort to promote degradation, pro-degradant (CS), bottle grade polylactic acid (PLA) and functionalised maleated polylactic acid (PLA-g-MA) were blended with polyethylene terephthalate (PET) to study on its properties and degradation behaviour. PET/CS composites, PET/PLA blends with and without compatibilizers were prepared using extrusion and injection molding technique. CS additives were incorporated into PET at a composition of 0.25, 0.5, 0.75 and 1 pph, respectively. In this study the polymer blend was prepared by adding bottle grade PLA composing of 5, 10 and 15 wt % with PET. PET blended with 15 wt % of bottle grade PLA (PLA15) were compatibilized using PLA-g-MA at 2, 4, 6 and 8 wt %, respectively. The formulated samples were then characterized by mechanical properties (tensile and flexural strengths) and thermal characteristics (TGA and DSC). Degradation studies were done using thermo-oxidative and accelerated weathering testing. Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy and scanning electron microscope (SEM) analysis were performed to study on the molecular structural changes and surface morphologies, while degree of degradation of the polymeric blends were measured using Carbonyl Index. The results indicated that, 0.25CS recorded highest TS, TM, FS and FM compared to pure PET. This showed that addition of CS additives up to 0.25 pph promoted an improved strength and interfacial adhesion in the composites. Thermal studies showed that increasing CS loading from 0.25 to 1 pph reduced the thermal stability of PET, while enthalpy and crystallinity of the composites reduced with increasing CS loading amount in PET. Degradation studies revealed an uneven growth around the carbonyl region of all the samples in the FTIR spectrum upon thermal exposure except for 0.25CS composite sample. However, reduced CI reading (less than 2.6) on all the composite samples interprets absence of degradation in the samples. The increasing addition of bottle grade PLA improved mechanical properties of PET. PLA15 achieved the maximum TS, TM, FS and FM, respectively compared to PET. Nevertheless, addition of PLA-g-MA into PLA15 has resulted in reduced TS, TM, FS and FM. Thermal studies showed that PET/PLA blends with and without PLA-g-MA have undergone a single step decomposition and increasing loading effect of PLA and PLA-g-MA have reduced the thermal stability of PET favoring for degradation to take place. As for the degradation studies, growing carbonyl region of the PLA15 blend after thermal exposure along with increasing CI reading and surface appearance stipulates the degradation process. Likewise, increasing addition of PLA-g-MA in PLA15 blends was observed to promote degradation compared to a compatibilized effect in the PET/PLA blends. Conclusively, blending of bottle grade PLA with PET increases the added value of the polymeric blend with regards to its properties and susceptibility towards degradation.
610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Faculty of Chemical and Natural Resources Engineering
General subdivision Dissertations
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Universities and colleges
General subdivision Disertations
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Theses
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Library of Congress Classification
Koha item type Thesis
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not lost Library of Congress Classification     Reference UMPLIB GAMBANG UMPLIB GAMBANG Reference 20/11/2019   FKKSA .A84 2019 r Thesis T000000155 20/11/2019 1 20/11/2019 Thesis
  Not lost Library of Congress Classification     Reference UMPLIB GAMBANG UMPLIB GAMBANG   20/11/2019   CD12243 T000000156 20/11/2020 1 20/11/2019 Thesis

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