RRI Publications
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Item Use of blends of glove waste and natural rubber in rubber products manufacture(Rubber Research Institute. Agalawatte, 1996) Seneviratne, W.M.G.; Kumara, P.H.S.; Abeykoon, A.M.C.Substantial amount of defective examination gloves are rejected in glove manufacturing factories in Sri Lanka. These glove rejects cause severe environmental hazards. A series of experiments were therfore carried out to investigate the possibility of recycling these glove rejects and using them as a blend or a filler in the manufactures of rubber products. The results of the experiments indicate that appraciable quantity of recycled glove waste can be blended with NR to give properties comparable to that obtained from NR alone.Item Chemical modification of natural rubber(Rubber Research Institute. Agalawatta, 1991) Pushpa, S.A.; Goonetilake, P.; Silva, S.M.C.E.; Witharana, L.P.; Denawake, I.Item Impact of production consumption, exports and stocks on the price of natural rubber in Sri Lanka(Rubber Research Institute. Agalawatta, 1997) Wijesuriya, B.W.; Thattil, R.O.The relationship between price of Natural Rubber (NR)with factors such as:production,consumption,exports and stocks are important in identifying the nature of competetion and therefore reveals the market structure for NR.This paper examines these relationships and also the seasonal variation of these factors,using time series statistical tools,viz Cross Correlation Functions (CCF)and seasonal indices. There is a marked seasonality in production with values below average during April to October (2nd and 3rd quarters).Prices tend to fall when the production rises.A similar phenomenon was observed between price and exports.However,the effect of production or exports on price is mild. A similar pattern of seasonal variation was observed for consumption and stocks of NR.More rubber is consumed during the latter part of the year.An accumulation of stocks was observed towards the end of the year.However,price of NR was not significantly related to consumption or stocks.This is mainly due to the fact that only a few buyers influence prices through their purchase and by adjustments of stocks as in an oligopolistic market.Item Plantation developments in natural rubber processing(Rubber Research Institute. Agalawatta, 1973) Sung, C.P.; Fahand, C.S.; Beng, S.Y.Item Graft polymerisation of natural rubber(Rubber Research Institute. Agalawatta, 1973) Selvaratnam, M.; Suseeladevy, S.; Sotheeswaran, S.Item Microcellular crumbs in profile extrusion(Rubber Research Institute of Sri Lanka. Agalawaththa, 1982) Fernando, W.S.E.; Jiu-Long, L.Item Research and the improvement of tyre performance(Rubber Research institute of Sri Lanka. Agalawaththa, 1974) Cunneen, J.I.Item Gelation of natural rubber caused by trialkyl aluminium compounds(Rubber Research Institute of Sri Lanka. Agalawaththa, 1976) Mendis, L.P.Item Use of pitch oil in natural rubber compounding(Rubber Research Institute Of Sri lanka. Agalawaththa, 1976) Rajapakse, R.A.; Gunasena, W.A.S.; Joganathan, B.Item New methods of compounding and their application to the promotion of rubber in engineering(Rubber research Institute of Sri Lanka. Agalawaththa, 1974) Cunneen, J.I.