Výsledky vyhledávání - "U. N. Ratnayake"

Effect of polyethylene glycol-intercalated organoclay on vulcanization characteristics and reinforcement of natural rubber nanocomposites

Autor: Chaminda Peiris, Gehan Amaratunga, Dileepa E Prematunga, Veranja Karunaratne, U. N. Ratnayake

Organically modified montmorillonite (OMMT) clay was intercalated with low-molecular weight polyethylene glycol (PEG) oligomer at melt stage. The intercalation behaviour of PEG into the OMMT clay galleries and its interaction with clay platelets were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec0ce7e35de12a12dff7fb2c2771fd18

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Co-intercalation in PP Clay Nanocomposites: Effect of Short Chain Additives on Rheological Properties

Autor: U. N. Ratnayake, B. Haworth

Publikováno v: International Polymer Processing. 26:91-99

Layered structures in inorganic minerals are not easily intercalated when combined with conventional non-polar polymers such as polypropylene (PP). A new co-intercalation method is reported whereby the combined influence of low molecular weight polar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3be21992016d3072af8bb261bd8c0c7d
https://doi.org/10.3139/217.2409

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Preparation of polypropylene-clay nanocomposites by the co-intercalation of modified polypropylene and short-chain amide molecules

Autor: Douglas J. Hourston, U. N. Ratnayake, B. Haworth

Publikováno v: Journal of Applied Polymer Science. 112:320-334

The effect of short-chain amide (AM) molecules on the intercalation of montmorillonite clay has been investigated by the melt blending of polypropylene (PP) with clay in the presence of AM molecules such as 13-cis-docosenamide (erucamide). Polypropyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c470b7d01bc43465c09714d9bac0435
https://doi.org/10.1002/app.29371

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Polypropylene–clay nanocomposites: Influence of low molecular weight polar additives on intercalation and exfoliation behavior

Autor: B. Haworth, U. N. Ratnayake

Publikováno v: Polymer Engineering & Science. 46:1008-1015

The influence of low molecular weight additives containing polar groups and modified polyolefin-based compatibilizers on polypropylene (PP)-clay nanocomposites (PPCN) has been studied, in terms of intercalation and degree of exfoliation achievable by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fabf079b641b8389a08cd4972fabd626
https://doi.org/10.1002/pen.20573

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Self-Assembled Multilayer Graphene Oxide Membrane and Carbon Nanotubes Synthesized Using a Rare Form of Natural Graphite

Autor: A.R. Kumarasinghe, U. N. Ratnayake, Lilantha Samaranayake, E. Magnano, Federica Bondino, Nilwala Kottegoda, Gehan A. J. Amaratunga, Aap De Alwis, Karunaratne, Elvio Carlino

Publikováno v: Journal of physical chemistry. C. (Online) 117 (2013): 9507–9519. doi:10.1021/jp402428j
info:cnr-pdr/source/autori:A. R. Kumarasinghe, L. Samaranayake, F. Bondino, E. Magnano, N. S. Kottegoda, E. Carlino, U. N. Ratnayaka, A. de Alwis, V. Karunaratne and G. A. J. Amaratunga/titolo:Self-Assembled Multilayer Graphene Oxide Membrane and Carbon Nanotubes Synthesized Using a Rare Form of Natural Graphite/doi:10.1021%2Fjp402428j/rivista:Journal of physical chemistry. C. (Online)/anno:2013/pagina_da:9507/pagina_a:9519/intervallo_pagine:9507–9519/volume:117

The fabrication of flexible multilayer graphene oxide (GO) membrane and carbon nanotubes (CNTs) using a rare form of high-purity natural graphite, vein graphite, is reported for the first time. Graphite oxide is synthesized using vein graphite follow

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Reinforcement and curing characteristics of organoclay filled natural rubber nanocomposites

Autor: Nilwala Kottegoda, U. N. Ratnayake, G. M. C. Alwis

Publikováno v: Journal of the Rubber Research Institute of Sri Lanka. 93:89

Natural rubber (NR) - organoclay nanocomposites (NROCN) and NR-clay (un-modified montmorillonite clay) composites (NRCC) were prepared using different loading of OC/unmodified clay by melt compounding process using a laboratory scale internal mixer i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17240f8a50d3738b2ade2d86ed9bb26d
https://doi.org/10.4038/jrrisl.v93i0.1869

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Natural rubber latex-clay nanocomposite: use of montmorillonite clay as an alternative for conventional CaCO3

Autor: UK De Silva, S. Walpalage, A Amarasiri, U. N. Ratnayake, S Siriwardene

Publikováno v: Journal of the National Science Foundation of Sri Lanka. 41:293

Natural rubber (NR) latex-clay nanocomposite (NRLCN) synthesized with montmorillonite (MMT) clay aqueous dispersion was evaluated for reinforcement and barrier properties. The physio-mechanical properties of the NRLCN were compared with the conventio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebfbf8be5c84273384fb96adea6d24ae
https://doi.org/10.4038/jnsfsr.v41i4.6258

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Effect of iron in processing water on quality of crepe rubber

Autor: T. A. S. Siriwardene, V. C. Rohanadeepa, P. H. Sarath Kumara, U. N. Ratnayake, A. K. D. W. Prasad

Publikováno v: Journal of the Rubber Research Institute of Sri Lanka. 91:1

Latex crepe rubber is the purest form of natural rubber and contamination of crepe rubber with metal ions should be avoided to maintain the quality of the rubber, especially to prevent the oxidative aging during storage. The influence of iron in proc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df2c410e8bf106cf59927d34a5d30fb6
https://doi.org/10.4038/jrrisl.v91i0.1849

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