| What are Polymers simply? | -They are just Repeating Units of Monomers. Like a Chain |
| What are the Uses for:
1. Strong, Rigid Polymers
2. Light, Stretchy Polymers
3. Polystyrene
4. Heat-Resistant Polymers | 1. High-Density Polyethene [Example] are seen in Water Pipes
2. Low-Density Polyethene are seen in Plastic Bags & Bottles
3. This is seen in Packaging to Protect Fragile Items and a Thermal Insulator
4. Melamine Resin and Polypropene seen to make Plastic Kettles |
| What are Ceramics? | -Ceramics are simply made of Baking Substances [Clay] to make a Brittle [Shatter-able] Stiff Material. Examples may be Glass and China
-Ceramics are Usually Giant Covalent Structures or Giant Ionic Structures |
| Why is Clay seen in Pottery and Bricks? | -Clay is made from Weathered and Decomposed Rock.
-When Extracted its very Soft - Perfect to Mould into Different Shapes which is Keys for Bricks and Pottery
-High Temperatures will Harden the Clay Up - Perfect for a Building Material as it can still Function even with Tons of Bricks Above |
| What Properties does Glass have? How is it even Made? | -Glass, a Ceramic, is Transparent and Strong
-Hot Temperatures can allow it to Mould, and Thin Glass will be very Brittle
-Glass, most of the time, is Soda-Lime Glass which is the Product of Heating up Limestone, Sand and Sodium Carbonate having them All Melt
-When it Cools - it makes Glass. |
| What is a Composite? | -They have a Material, which Reinforces, and is Implanted in another Another Material, often called the Matrix/Binder.
-Their Properties all depends on the Material's Properties. |
| What even is, and are, the Properties and Uses for:
1. Fibreglass
2. Concrete
3. KEVLAR based Composites
4. Carbon Fibre Composites | 1. Fibreglass has Fibres of Glass that is Embedded in a Polymer Matrix. It has a Low Density [Polymer] but Strong [Glass] so its seen in Skis and Boats
2. Concrete has Aggregate [Mixture of Sand & Gravel] Embedded in Cement. This makes it very Hard to Break so is good for Building.
3. KEVLAR [Man-Made polymer that's Very Strong] is Embedded in Another Material. The Result is that Strength is Added but its still not Heavier - Ideal for Cycling Helmet and Ropes
4. Carbon Fibres Composites use Carbon Fibres or Carbon Nanotubes, which is Embedded in a Polymer Resin Matrix. Very Expensive but Perfect as its Light and Strong [Aeroplanes] |
