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Master of Science in Polymer Technology
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Master of Science in Polymer Technology: Recent submissions

Now showing items 21-40 of 73

Development of NR/CHR rubber blends with carbon black and silica fillers for tyre inner liners

Siriwardana, TAAI [Thesis-Abstract]

Inner liner of a tubeless tyre is currently constructed using a speciality synthetic rubber called chlorobutyl rubber (CIIR). Blending of CIIR with natural rubber (NR) will enable to achieve improvement in physico-mechanical ...
Use of some castor oil derivatives as surfactants in NR latex industry

Satharasinghe, WNN [Thesis-Abstract]

Surfactants which find applications in local NR latex industry are chiefly imported chemicals. With a view to replace some of these chemicals ...
Modification of mineral fillers with aminofunctional derivatives

Thambawita, IS [Thesis-Abstract]

Effect of mineral fillers modified with amino-functional derivatives on properties of natural rubber compounds was studied. To improve the performance of rubber compounds, three types of locally available mineral fillers; ...
STRUCTURE AND PROPERTIES OF THERMOPLASTIC BLENDS OF NATURAL RUBBER AND POLYPROPYLENE PREPARED FROM GRANULATED NATURAL RUBBER

Silva, LBK [Thesis-Abstract]
Stress analysis of 7.50-16 tyre using finite elements

Edirisinghe, EAAG [Thesis-Abstract]

The Finite Element method of structural analysis h a s achieve d a rapid development within the tyre industry. This is basically due to the ability of dealing with complexities of modern tyres , which was the main obstacle ...
Depolymerisation of nr latex and its applications

Bopitiya, M [Thesis-Abstract]

The controlled molecular weight reduction of NR in latex phase had been carried out by treating NR latex with singlet molecular oxygen generated ...
Ground paddy husk ash as a filler for rubber compound

Fernando, MJFM [Thesis-Abstract]

The conversion of paddy husk an agricultural waste product at the farm level into thermal energy has become a subject of growing interest, particularly in deveoping country like Sri Lanka. The process generates thermal ...
Designing of a profile extrusion die

Samarawickrama, UDA [Thesis-Abstract]

Designing of the proposed profile extrusion die had few main tasks. One was to find out the most suitable type of die and the other was to calculate important operating parameters like pressure drop. The next is to calculate ...
A Study on the effect of aeration on mechanical stability of concentrated natural rubber latex upon maturation

Roshanie, LKS [Thesis-Full-text]

ABSTRACT The ever innovation of rubber products in diversified fields have made it necessary to find suitable quality latex rubberfordifferentproducts.Because,manufacturesofrubberproductsareinsistingoncertain range of ...
Synthesis and characterization of alkyd resins using blend of soya beans oil and karawila seed oil

De Silva, SHUI [Thesis-Abstract]

This research is based on synthesizing an air drying long oil alkyd resin using a blend of semi drying soya bean (Glycine max -Pb I) oil and fast drying karawila (Momodica charantia -MC43) seed oil. The alkyd resin was ...
The Effect of 2 - amino - 2 methyl - 1 - propanol on stabilization and properties of latex and latex mixes used in latex dipping operations

Liyanage, WPR [Thesis-Abstract]

Ammonia preservation is widely used as the standard method of preservation for Natural Rubber (NR) latex. Because ammonia is volatile its concentration in latex is difficult to control. This study presents an alternative ...
Hydrodynamic and termodynamic approach to convention of design of individual extruder die for production of semi rigid PVC pipes

Tilakasena, U

The research was directed to develop a die for a semi rigid PVC pipe. Semi rigid PVC is widely used in washing machines as the outlet pipe. Washing machines are used in a number of factories located in Sri Lanka, belonging ...
Development of extrusion technology of breathable film for industrial applications

Illangarathne, SSKP [Thesis-Abstract]

The present research was pursued to develop breathable plastic packaging suited for desired level of moisture permeable application. The monolayer plastic films differed by resin composition were extruded by blown film ...
Synthesis and characterization of stoving alkyd resin based on oil blends of Karawila seed oil and Coconut oil

Vitharana, DKB [Thesis-Abstract]

Synthetic resins are used as binders in protective coatings. An alkyd/melamine resin mixture is the usual composition for the preparation of coating called Baking enamel or Stoving enamel cured through functional groups ...
Synthesis of alkyd resin based on blend of Nahar seed oil and Karawila seed oil

Milani, MDY [Thesis-Abstract]

Blend of seed oil; Mesua ferrea and Momodica charantia (50: 50 w/w %) as a potential source of fatty oil in manufacturing air drying long oil alkyd resin was investigated. Monoglyceride process at a temperature of 240 DC ...
Replacement of silica in colour shoe soling rubber compound by semi reinforcing kaolin

Abeysinghe, L [Thesis-Abstract]

In this project, attempts have been made to identify the reasons for product failure of beige colour rubber compound due to abnormal stretching at my working place, Arpitalian compact Soles Pvt Ltd, export processing Zone, ...
incorporation of activated carbon in natural rubber latex foam for improvement in sorption property

Rajakaruna, ARM [Thesis-Abstract]

Natural Rubber (NR) latex is a colloidal dispersion of NR polymer which is predominantly cis 1,4 -Polyisoprene in an aqueous medium. Various chemicals are added to NR latex mainly as dispersions, at compounding stage to ...
A Study of natural rubber latex - filler interaction

Peris, CN [Thesis-Abstract]

An attempt has been made to evaluate natural rubber latex - filler interaction. 1800- peel test of flexible to rigid joints was performed to determine the peel strength of natural rubber latex -kaolin joints in order to ...
Investigation of NR-EPDM blends for improving Ozone resistance of tyre side wall

Kumara, SADS [Thesis-Abstract]

In this project, attempts have been made to improve the properties of Natural rubber (NR) tyre sidewall compound, especially the ozone resistance by blending the rubber with Ethylene propylene diene monomer rubber (EPDM). In ...
Investigation of aluminahydrate as a fire retardant in silica filled rubber floor-tiles

Rajapaksha, KA [Thesis-Abstract]

The flame-retardant chemicals, which commercially find applications in rubbers, are considered to be toxic chemicals, because of the liberation of their harmful volatile by products, when rubbers are on fire. From the ...

Now showing items 21-40 of 73

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