Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13387
Title: A study on roller compaction of powders
Authors: CHEE SZE NAM
Keywords: Roller Compaction, Cone Penetration Breaking Strength, Material Properties, Processing Parameters, Lactose, Herb
Issue Date: 17-Sep-2007
Source: CHEE SZE NAM (2007-09-17). A study on roller compaction of powders. ScholarBank@NUS Repository.
Abstract: Roller compaction is a dry granulation process where powder is densified between two counter-rotating rollers. This study investigated the effects of material properties and processing variables on roller compaction and its product quality. As the mechanical strength of flakes was an important variable and no suitable measurement method existed, a reliable method was developed. The effects of various processing parameters and raw materials on flake formation and granules produced were studied. Roller speed exerted a greater influence than screw speed on roller compaction. Compaction force had only limited influence while dwell time did not affect flake properties. The extent of influence on compaction by the processing parameters was dependent on powder flowability. The particle size and size distribution of raw materials showed differing effects, depending on its nature. Molecular weight and chemical composition of the binder added affected product quality.
URI: http://scholarbank.nus.edu.sg/handle/10635/13387
Appears in Collections:Ph.D Theses (Open)

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01Title_page.pdf13.57 kBAdobe PDF

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02Acknowledgements.pdf13.93 kBAdobe PDF

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03Table of Contents.pdf121.88 kBAdobe PDF

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04Summary.pdf16.18 kBAdobe PDF

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05List of Tables.pdf32.89 kBAdobe PDF

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06List of Figures.pdf65.68 kBAdobe PDF

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07List of Abbreviations-Symbols.pdf67.42 kBAdobe PDF

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08Introduction.pdf229.45 kBAdobe PDF

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09Hypotheses and Objectives.pdf15.38 kBAdobe PDF

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10Experimental.pdf266.14 kBAdobe PDF

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11Results and Discussion.pdf1.76 MBAdobe PDF

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12Conclusions.pdf18.4 kBAdobe PDF

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13References.pdf135.81 kBAdobe PDF

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14Publications.pdf15.58 kBAdobe PDF

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