get to the actual recipe for making your very own "algae plastic"‚ you should understand what role agar actually plays. Like all other plastics‚ bioplastics are composed of three basic parts: one or more polymers‚ one or more plasticizers‚ plus one or more additives. Roughly speaking: polymers give plastic its strength‚ plasticizers give it its bendable and mouldable qualities‚ and additives give it other properties (color‚ durability‚ etc).
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Matthew Irwin – H00101376 Process Intensification – B51GD Esterification and Polymerisation in PET production Process Overview Polyethylene terephthalate is a polymer with broad applications worldwide‚ and one of the most produced polymers manufactured globally each year. It main application is the bottling industry where approximately 14.7 Mt in 2009. PET resin is produced conventionally in a two - step process displayed in figure 1.9. The first stage is the esterification of Terephthalic acid
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are typically organic polymers of high molecular mass‚ but they often contain other substances. They are usually synthetic‚ most commonly derived from petrochemicals‚ but many are partially natural. Most plastics are derived from propylene‚ a simple chemical component of petroleum. When heated up in the presence of a catalyst‚ individual chemical units monomers of propylene link together by forming extremely strong carbon-carbon bonds with each other. This results in polymers long chains of monomers
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Material Science Project Modern Materials Used in Military Body Armour: Body Armour Covers‚ Soft Body Armour and Hard Body Armour 8 April 2013 Margaretha Joubert Undergraduate The University of the Witwatersrand i ii CONTENTS Page Title Page i Contents iii List of Figures iv List of Tables v 1 INTRODUCTION 1 1.1 Military Body Armour 1 2 BODY ARMOUR COVERS 2 2.1 CoolMAX® 2.2 Cordura® 2.3 Gore-tex® 2 2 2 3 SOFT BODY ARMOUR
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HSC Chemistry Topic 1 PRODUCT ON of MATERIALS What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. POLYMERS FROM PETROCHEMICALS & BIOMASS 2. ALTERNATIVE FUELS - ETHANOL & THE ALKANOLS 3. REDOX CHEMISTRY & BATTERIES 4. RADIOACTIVITY & ITS USES ...all in the context of society’s use of energy and materials but first) an introduction ... In the previous topic in the Preliminary Course‚ you learnt about carbon chemistry of petroleum Then you
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data along with TEM and STEM images confirmed the formation of a uniformly dispersed phase in HPMC-LAC CP. Moreover‚ Williams et al. have already demonstrated sugar-induced suppression of polymer hydration due to destruction of intramolecular hydrogen bonding that restricts rapid hydration and swelling of polymer particles (Kabayama and Patterson‚ 1958; Williams et al.‚ 2010a; Williams et al.‚ 2009‚ 2010b). Hence‚ it can be concluded that the improvement in dispersion behavior of HPMC-LAC CP was predominantly
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of rubber tree and the chemical component of star apple leaves. It is important to realize that protein adhesives are different from other adhesives in two major ways. First‚ in chemical terms‚ most adhesives‚ whether synthetic or bio-based‚ are polymers made from one or a few monomers‚ usually with similar functionality. However‚ proteins are made from more than 20 amino acid monomers with side chains containing a variety of functional groups. Second‚ morphologically‚ adhesives generally can be
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Additionally‚ HDPE is a linear polymer. HDPE is made of closely packed structure of ethylene hydrocarbon (C2H4n.H2) which undergoes a catalytic process. There are no branching in the molecular structure‚ resulting in increasing the material’s hardness and its rather high impact strength. GPPS‚ also known as the ordinary polystyrene‚ is a raw material to make HIPS. HIPS is made out of ordinary or general purpose polystyrene and rubber. The addition of rubber to the polymer improves the toughness of the
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Like cement sets the foundation for a house‚ the cell theory sets the foundation for biology. Schleiden and Schwann proposed the cell theory‚ which states that the cell is the basic unit of life and that new cells arise only from the reproduction of already existing cells via cell cycle‚ in 1839. Since the cell is the structural and functional unit of life as the house is for a community‚ without the house the community would be irritated and would not be stable‚ the community would therefore cease
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Fabric Swatch Price and Name Linen 40$/m • Fiber Origin and construction made from the fibers of the flax plant‚ Linum usitatissimum. Spinning of 100# linen (no added cotton) • • • • • • Properties Handle/Drape Laundering/ aftercare • • Spin and tumble Should be dried in the sun constant
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