Nanoparticles 4.5 / 5 based on 2 ratings ? ChemistryNanoscienceGCSEAQA Created by: Harry TannerCreated on: 29-11-12 15:08 Nanosciene is the study of what size of particles? 1 - 100 Nanometres in size 1 of 14 What do Nanoparticles form when combined? Nanostructures 2 of 14 Give an example of a Nanostructure Liposomes 3 of 14 What about electrons makes Nanoparticles different? Electrons can move through an insulating layer 4 of 14 What are nanoparticles more sensitive to? Heat and Light 5 of 14 In relation to volume what is a Nanoparticle's surface area? A Nanoparticle's surface area is large compared to volume 6 of 14 What is a nanocomposite? A Nanocomposite is a material that can be added to make plastics stronger 7 of 14 Give two examples of where Nanocomposites are in use Car Industry and Pharmaceuticals 8 of 14 What is a smart material? It is a Nanostructure that behaves in a certain way when subjected to certain conditions 9 of 14 Give two examples of Smart Materials, what do they do? Lycra - used in sports wear as it is stretchy, Kevlar - used in bullet-proof vests 10 of 14 What are polymers? They are long chains of raw materials 11 of 14 How could you make high and low density Polythene? Using different catalysts 12 of 14 What is the difference between Themosetting and Themosoftening? Thermosetting has cross links to hold the structure together when heated. Thermosoftening has no cross links and doesn't hold in place when heating 13 of 14 Give an example of a Thermosoftening and Thermosetting material Plugs are thermosetting, Plastic bags are thermosoftening 14 of 14
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