Effect of Clone Type on Storage Haerdening and Gel Content of Raw Natural Rubber

Simple item page
dc.contributor.authorDelman, H.W.O.C.
dc.date.accessioned2021-05-20T05:48:25Z
dc.date.available2021-05-20T05:48:25Z
dc.date.issued2015
dc.description.abstractLatex is the only non-synthetic elastomer in wide use derived from the milk-like liquid of the rubber tree. At present the country ranks among the world's top ten largest producers and 7th largest exporter of natural rubber. Even though Sri Lanka is the one of the leading manufacturer of raw rubber, most of the product manufacturing is carried out in other countries and those rubbers should be kept under storage conditions. During transportation or upon storage natural rubber exhibits different storage properties. Hence, rubber industry has increase the requirement for quality and uniformity of natural rubber. The objective of this study was to assess effects of clone type on gel content and storage hardening of natural rubber. Ten different clones of rubber have used as samples in this study which are RRISL 201, 202, 203, 205, 206, 211, 216 217, 219 and RRISL 222. Properties of raw rubber were evaluated by standard methods of gel content, Mooney viscosity, stress relaxation rate, Green strength, Initial plasticity and hardening plasticity. Minitab 16 statistical software was used to analyze the qualities of nine replicates of ten different clones. Most of the clones showed medium and hard viscosities and none of clones reported low viscosities. Correlation between Mooney viscosity and Initial Wallace plasticity were analyzed using regression and identified that there is a relationship among them. The RRISL 203 clone gave relatively high Mooney viscosity, Po, stress relaxation rate and green strength. Therefore it can be concluded that RRISL 203 clone have high molecular weight. As all the tested properties met the specification requirements for rubber processing, RRISL 217 clone fulfil that requirement among these clones.en_US
dc.identifier.otherUWU/PLT/11/0045
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/6808/UWULD%20PLT%2011%200045-29042019094317.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;UWU/PLT/11/0045
dc.subjectPalm and Latex Technology and Value Addition Degree Programme ( PLT)en_US
dc.titleEffect of Clone Type on Storage Haerdening and Gel Content of Raw Natural Rubberen_US
dc.title.alternativeResearch Article – PLT 2015en_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
UWULD PLT 11 0045-29042019094317.pdf
Size:
6.26 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Palm and Latex Technology and Value Addition Degree Programme ( PLT)