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Characterization Of Green Composites Films From Agar As A Potential Packaging Material

Agar is a biopolymer extracted from certain red algae. The transparent film made from agar gum is becoming a common and renewable alternative for plastic-based food packaging materials. Agar have speciality in properties such as, high gel strength at low concentration, low viscocity and riversible p...

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Main Author: Ismail, Nor Azlina
Format: Thesis
Language:English
Published: 2022
Subjects:
T11.95-12.5 Industrial directories
Online Access:http://eprints.usm.my/59405/1/NOR%20AZLINA%20BINTI%20ISMAIL%20-%20TESIS%20cut.pdf
http://eprints.usm.my/59405/
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spelling my.usm.eprints.59405 http://eprints.usm.my/59405/ Characterization Of Green Composites Films From Agar As A Potential Packaging Material Ismail, Nor Azlina T11.95-12.5 Industrial directories Agar is a biopolymer extracted from certain red algae. The transparent film made from agar gum is becoming a common and renewable alternative for plastic-based food packaging materials. Agar have speciality in properties such as, high gel strength at low concentration, low viscocity and riversible process.. However, the film produced has poor properties such as brittle, high moisture permeability, and poor thermal stability. Hence the effect on addition of four types of plasticizers (Glycerol, PEG 200, PEG 1000 dan PEG 2000) with variation (10, 20,30 and 40%) has been done. Based on the results obtained, the plasticizing agent PEG 1000 at an addition of 40% was selected for the study of addition of crosslinking agents namely calcium chloride and acrylic resin. To reduce the hydrophilicity properties of agar composites based film, the addition of 40% (w/w) acrylic, whereas the film with the addition of 2% CaCl2 and an immersion time of 4 minutes showed a tensile strength of 57.54 MPa and a breaking point elongation of 1.20%. The agar film with the addition of 1000 PEG 40% showed a tensile strength of 29.02 MPa and a breaking point elongation of 3.19%. This indicates that the addition of acrylic resin as a cross linking agent not only reduces the hydrophilic properties of the film in order to increase the tensile strength. However, the break point elongation results showed a decrease after the addition of acrylic resin. From the infrared diffraction analysis (FTIR) proved the presence of acrylic resin in the film produced with the presence of a peak of 1728.32 cm-1 explains the existence of carbonyl group (C = O). 2022-07 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/59405/1/NOR%20AZLINA%20BINTI%20ISMAIL%20-%20TESIS%20cut.pdf Ismail, Nor Azlina (2022) Characterization Of Green Composites Films From Agar As A Potential Packaging Material. PhD thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T11.95-12.5 Industrial directories
spellingShingle T11.95-12.5 Industrial directories
Ismail, Nor Azlina
Characterization Of Green Composites Films From Agar As A Potential Packaging Material
description Agar is a biopolymer extracted from certain red algae. The transparent film made from agar gum is becoming a common and renewable alternative for plastic-based food packaging materials. Agar have speciality in properties such as, high gel strength at low concentration, low viscocity and riversible process.. However, the film produced has poor properties such as brittle, high moisture permeability, and poor thermal stability. Hence the effect on addition of four types of plasticizers (Glycerol, PEG 200, PEG 1000 dan PEG 2000) with variation (10, 20,30 and 40%) has been done. Based on the results obtained, the plasticizing agent PEG 1000 at an addition of 40% was selected for the study of addition of crosslinking agents namely calcium chloride and acrylic resin. To reduce the hydrophilicity properties of agar composites based film, the addition of 40% (w/w) acrylic, whereas the film with the addition of 2% CaCl2 and an immersion time of 4 minutes showed a tensile strength of 57.54 MPa and a breaking point elongation of 1.20%. The agar film with the addition of 1000 PEG 40% showed a tensile strength of 29.02 MPa and a breaking point elongation of 3.19%. This indicates that the addition of acrylic resin as a cross linking agent not only reduces the hydrophilic properties of the film in order to increase the tensile strength. However, the break point elongation results showed a decrease after the addition of acrylic resin. From the infrared diffraction analysis (FTIR) proved the presence of acrylic resin in the film produced with the presence of a peak of 1728.32 cm-1 explains the existence of carbonyl group (C = O).
format Thesis
author Ismail, Nor Azlina
author_facet Ismail, Nor Azlina
author_sort Ismail, Nor Azlina
title Characterization Of Green Composites Films From Agar As A Potential Packaging Material
title_short Characterization Of Green Composites Films From Agar As A Potential Packaging Material
title_full Characterization Of Green Composites Films From Agar As A Potential Packaging Material
title_fullStr Characterization Of Green Composites Films From Agar As A Potential Packaging Material
title_full_unstemmed Characterization Of Green Composites Films From Agar As A Potential Packaging Material
title_sort characterization of green composites films from agar as a potential packaging material
publishDate 2022
url http://eprints.usm.my/59405/1/NOR%20AZLINA%20BINTI%20ISMAIL%20-%20TESIS%20cut.pdf
http://eprints.usm.my/59405/
_version_ 1778162355454083072
score 13.211869

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