Staff Publications

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Author: search.filters.author.Karunanayake, L.Has files: Yes

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    Blends of acrylonitrile butadiene rubber/superior processing/natural rubber and poly(vinyl chloride) Part I. a study of some of the technological properties of NBR/SP rubber/NR/PVC blends
    (Rubber Research Institute:Agalawatta, 1999) De Silva, K.G.K.; Karunanayake, L.; Muttukkrishnan, K.
    The advantage s of using superior processing(SP)rubber in place of natural rubber (NR) in blends with NBR and NBR/PVC is discussed here in derail.various technological properties such as tensile,resilience,hardness,compression set,specific gravity,cross-lind density and resistance to oil were measured and compared. It is advantageous to use SP rubber in place of NR in the above blends probably due to higher cross-link density in the SP rubber component when compared to NR. It may be possible to use the ternary blends of SP/PVC? NBR in manufacture of injection moldable and recyclable products due to their thermoplastic nature
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    Rain-guards, the rapid way to increase rubber production
    (Rubber Research Institute of Sri Lanka:Agalawatta, 2000) Tillekeratne, L.M.K.; Karunanayake, L.
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    Magnesium content in natural rubber latex
    (Rubber Research Institute of Sri Lanka:Agalawatta, 1998) Karunanayake, L.; Sarath Kumara, P.H.; Nandasena, W.W.; Wanigatunga, L.; Gamage, V.; Lokuge, C.
    Measurements and control of magnesium content in natural rubber latex is very important in centryfuged latex industry as the Mg content affects the stability of latex, very significantly. In this study, an investigation was carried out to find the effect of seasonal and regional variations in Mg content of natural rubber latex. A titration method was used to estimate the Mg content in latices. The Mg content of NR latex was found to be dependent on seasonal variations
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    Study of natural oils as alternative processing aids and activators in carbon black filled natural rubber
    (2009) Jayewardena, W.G.D.; Perera, G.M.; Edirisinghe, D.G.; Karunanayake, L.