what materials are used to make plastic?
970107
Plastic covers a range of synthetic or semisynthetic polymerization products. They are composed of organic condensation or addition polymers and may contain other substances to improve performance or economics. There are few natural polymers generally considered to be "plastics". Plastics can be formed into objects or films or fibers. Their name is derived from the fact that many are malleable, having the property of plasticity. Plastic can be classified in many ways but most commonly by their polymer backbone (polyvinyl chloride, polyethylene, acrylic, silicone, urethane, etc.). Other classifications include thermoplastic vs. thermoset, elastomer, engineering plastic, addition or condensation, and Glass transition temperature or Tg.\n\nA lot of plastics are partially crystalline and partially amorphous in molecular structure, giving them both a melting point (the temperature at which the attractive intermolecular forces are overcome) and one or more glass transitions (temperatures at which the degree of cross-linking is substantially reduced).\n\nPlastics are polymers: long chains of atoms bonded to one another. These chains are made up of many repeating molecular units, or "monomers". The vast majority of plastics are composed of polymers of carbon alone or with oxygen, nitrogen, chlorine or sulfur in the backbone. (Some of commercial interest are silicon based.) The backbone is that part of the chain on the main "path" linking the multitude of monomer units together. To customize the properties of a plastic, different molecular groups "hang" from the backbone (usually they are "hung" as part of the monomers before linking monomers together to form the polymer chain). This customization by pendant groups has allowed plastics to become such an indispensable part of twenty first-century life by fine tuning the properties of the polymer.
925947
Before the introduction of plastics in the building industry, cast iron, pressed steel and zinc were in common use for gutters and rainwater pipes.  When plastics were developed, PVC became the preferred plastic due to its lightness, ease of installation and resistance to deterioration. In my experience the time taken to fit plastic materials is approximately half to one third that of traditional materials.  Plastics are also smooth on the surface reducing resistance and allowing  water to flow more freely.
1064752
Are you talking about the coroplast material? It is corogated plastic. They are used for what they call bandit signs. What is your location? I make these signs or you can find a local sign shop.
399128
Polythene bags..\n\nethylene on polymerization will give polythene material..\n\nThats it!
962132
nylon\n\nmade from petro chemical
339380
carbon fiber.\nit comes as a soft material rolled up like cloth, then they cut it and put it around a mould. It is hardened by putting it under a vacuum, and then in a huge autoclave which cooks the material. the result is strong yet light carbon-fiber
964473
Silica; it's what makes glass, and ceramics have insulative properties. Other than that, it would be petroleum products such as plastics, and vinyls. Rubber comes from a plant.
467259
Polyvinyl Choloride.  It;s a widley used type of plastic, perhaps most commonly found in costruction with "PVC Pipes".
904937
ref\n\nhttp://www.cem.msu.edu/~reusch/VirtualText/polymers.htm
286005
Plastic is used in everything from IV tubing to all kinds of packaging, syringes, etc...
379223
What year? Normally, steel outside. Plastic inside.
77153
Glass is composed of mainly silicone, heated to a high temperature until it forms a supercooled liquid. Sand is the most common form of raw material used in making glass though silica is sometimes used. Other materials can be added in to give extra strength or changes in its composition to make specialized products such as pyrex, coloration and certain metals are added to add colour to it.
370419
Mostly they use Isoproyle butane... not harmful to plastic.
512383
Vinyl chloride is polymerized to make polyvinyl chloride, also called PVC.\n\nPVC can be molded or extruded into just about any shape, including pipe.  It is a rigid plastic itself, but can be made flexible by the addition of plasticizers.  Plasticized PVC is often called simply: vinyl.\n\nPVC is a very durable plastic, although pure PVC can be degraded by UV exposure.  PVC for outdoor use (vinyl siding, vinyl windows) often contains other chemicals that prevent that degradation, either by absorbing the UV light or by preventing the subsequent chemical reaction.
21884
http://www.uyseg.org/industryanimated/teachers%20notes/extrusion_moulding.pdf\nThis file is good\n\nhttp://www.atplas.com/poly/ateva/moulding.htm\n\nExtrusion Moulding is a manufacturing process used to make pipes, hoses, drinking straws, curtain tracks, rods, and fibres\nhttp://en.wikipedia.org/wiki/Extrusion_Moulding
200407
First of all, polymers are considered blends of different plastics to fit a certain usage.\n\nThermoplastic, from its name, tells us that these plastics can withstand extremely high and low temperature, so such plastics may be used for cooking and/or other things like containment of highly reactive materials.\n\nVOTE FOR BIG LINH HE NEEDS POINTS :P
198871
Silica sand.\n\nhttp://www.publicbookshelf.com/public_html/The_Household_Cyclopedia_of_General_Information/howtomak_cge.html