Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.

The physico-chemical and mechanical properties of latex extracted from five species of Artocarpus J.R.Forster & G.Forster, namely: A. altilis (Parkinson) Fosberg, A. blancoi Merr., A. camansi Blanco, A. heterophyllus Lam., and A. ovatus Blanco as potential natural adhesives were characterized. S...

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Main Author: Nepacina, Maria Rejane J.
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Language:English
Published: Animo Repository 2018
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Online Access:https://animorepository.dlsu.edu.ph/etd_masteral/5535
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Institution: De La Salle University
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spelling oai:animorepository.dlsu.edu.ph:etd_masteral-123732024-12-19T06:11:30Z Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp. Nepacina, Maria Rejane J. The physico-chemical and mechanical properties of latex extracted from five species of Artocarpus J.R.Forster & G.Forster, namely: A. altilis (Parkinson) Fosberg, A. blancoi Merr., A. camansi Blanco, A. heterophyllus Lam., and A. ovatus Blanco as potential natural adhesives were characterized. Surface morphological characterized showed that all five Artocarpus spp. have no specific forms, but otherwise flexible and viscoelastic. Contact angle measurements showed that all samples of Artocarpus spp. were hydrophilic with low contact angle values (p-value = 0.00, n=100, 0.05 a). Fourier Transform Infrared Spectroscopy analysis matched all Artocarpus latex samples to that of Polyvinyl acetate while latex samples having the highest resin content belonged to A. ovatus with no significant difference with A. heterephyllus and A. camansi (p value= 0.00, n = 15, 0.05 a). Cluster analysis revealed that out of the eight variables tested A. heterephyllus was the outgroup being attributed to the gum-like property of its latex. It was confirmed that out of the three stress strain analyses A. camansi had the highest values for tensile strength, A. ovatus had the highest values for Youngs modulus of elasticity while the highest % elongation values belonged to A. heterophyllus. Finally, adhesive shear strengths with maximum force values were highest in A. ovatus. All the above tests and analyses suggested that latex of all five Artocarpus spp. were similar in characteristics to polymer adhesive. Among which A. camansi and A. ovatus exhibited high results on adhesive strength tests. 2018-01-01T08:00:00Z text https://animorepository.dlsu.edu.ph/etd_masteral/5535 Master's Theses English Animo Repository Latex
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
language English
topic Latex
spellingShingle Latex
Nepacina, Maria Rejane J.
Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
description The physico-chemical and mechanical properties of latex extracted from five species of Artocarpus J.R.Forster & G.Forster, namely: A. altilis (Parkinson) Fosberg, A. blancoi Merr., A. camansi Blanco, A. heterophyllus Lam., and A. ovatus Blanco as potential natural adhesives were characterized. Surface morphological characterized showed that all five Artocarpus spp. have no specific forms, but otherwise flexible and viscoelastic. Contact angle measurements showed that all samples of Artocarpus spp. were hydrophilic with low contact angle values (p-value = 0.00, n=100, 0.05 a). Fourier Transform Infrared Spectroscopy analysis matched all Artocarpus latex samples to that of Polyvinyl acetate while latex samples having the highest resin content belonged to A. ovatus with no significant difference with A. heterephyllus and A. camansi (p value= 0.00, n = 15, 0.05 a). Cluster analysis revealed that out of the eight variables tested A. heterephyllus was the outgroup being attributed to the gum-like property of its latex. It was confirmed that out of the three stress strain analyses A. camansi had the highest values for tensile strength, A. ovatus had the highest values for Youngs modulus of elasticity while the highest % elongation values belonged to A. heterophyllus. Finally, adhesive shear strengths with maximum force values were highest in A. ovatus. All the above tests and analyses suggested that latex of all five Artocarpus spp. were similar in characteristics to polymer adhesive. Among which A. camansi and A. ovatus exhibited high results on adhesive strength tests.
format text
author Nepacina, Maria Rejane J.
author_facet Nepacina, Maria Rejane J.
author_sort Nepacina, Maria Rejane J.
title Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
title_short Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
title_full Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
title_fullStr Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
title_full_unstemmed Pysico-chemical and mechanical characterization of latex from Artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
title_sort pysico-chemical and mechanical characterization of latex from artocarpus heterophyllus lam. (jackfruit) and four related artocarpus spp.
publisher Animo Repository
publishDate 2018
url https://animorepository.dlsu.edu.ph/etd_masteral/5535
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