The difference between plastics and elastomers is actually quite simple. Plastics are made from oil and elastomers are made from synthetic material.
There isn't too much of a difference between elastomers and plastics. The only real difference between them is how far you can stretch them. Other than that they are really similar.
thermosetting plastic becomes hard when heated and deteriorates by excessive cross linking and thermoplastic becomes soft and can be moulded into any shape.
because of the difference in physical characteristics of thermoplastics and metals, there are corresponding differences between welding techniques for metals and thermo-plastics. in the welding of metal, welding rod and parent material become molten and fuse into the required bond to form welded joints. this is not in thermo plastics, because they are poor heat conductors , they are difficult to heat uniformly .. so diifferent methods are used to weld plastics...
The terms are used to categorise cable insulation according to its properties, such as its operating temperature, rather than the ingredients from which it is are made.These terms are now used by the IEE Wiring Regulations to describe insulation formerly described, for example, as 'pvc' (a 'thermoplastic' material) or rubber ( a 'thermosetting' material).
Thermosetting plastics
Thermosoftening plastics can be reshaped multiple times when heated, whereas thermosetting plastics undergo a chemical reaction when heated and become infusible and insoluble, making them retain their shape permanently. Thermosoftening plastics are typically used in applications where flexibility and reshaping are desired, while thermosetting plastics are used in applications requiring durability and stability.
Thermoplastics plastics can be heated and then moulded into a shape or form, but thermosetting cannot. Each plastic can be moulded into a 'shape or form', it is just that thermoplastics, once they have been moulded, they can be re-heated and moulded again, where-as once thermosetting plastics have been moulded, if re-heated and you try to remould it, it will just make it brittle and snap instead.
THERMOSETTING can be heated and shaped ONCE THERMO can be heated an manipulated time and time again
thermoplastics can be melted / heated up and re-moulded into a completely new shape. usually once re-heated they will re-take their original shape. Thermosetting Plastics cannot be melted down or re-shaped once they have originally set.
Thermoplastic plastics can be melted and reshaped multiple times when heated, while thermosetting plastics undergo a chemical change when heated and cannot be reshaped once they have set. Thermosetting plastics have higher temperature resistance and are more rigid compared to thermoplastics.
The difference between plastics and elastomers is actually quite simple. Plastics are made from oil and elastomers are made from synthetic material.
Did you know all plastics fall into only 2 categories when it comes to their reaction to heating? These 2 categories are called Thermoplastic and Thermosetting.Thermoplastic materials become soft when they are heated and solid when cooled to room temperature. This is similar to heating and cooling wax. Thermoplastics are materials such as acrylics, cellulosics, polyamide, polystyrene, polyethylene, fluoroplastics, polyvinyls, polycarbonate, and polysulfone.Thermosetting materials cannot be reheated and softened again. Once these are formed they cannot be reformed. This is simliar to baking a cake or boiling an egg. Thermosetting are materials such as aminos, casein, epoxies, phenolics, polyesters, silicones, and polyurethanes.http://blog.spencerindustries.com/2009/11/thermoplastic-and-thermosetting.htmlNote:Thermoforming is a process where a plastic sheet is heated, formed in a mold, and then trimmed. Thermoforming uses Thermoplastic materials.
There isn't too much of a difference between elastomers and plastics. The only real difference between them is how far you can stretch them. Other than that they are really similar.
Polymers are plastic. Thermosoftening is hard when it is cold and flexible when it is warm. Thermosetting is flexible when cold and hard when hotThermosetting plastics are polymers that, once heated, melted and moulded, cannot be re-moulded as the bond between their molecules are too strong. Thermosoftening plastics are polymers which can be re-moulded many times as the bonds between the molecules are very weak. Thermosetting plastics can only be shaped once. Thermosoftening plastics can be shaped and re-shaped many times. :) hope this is helpful x
thermosetting plastic becomes hard when heated and deteriorates by excessive cross linking and thermoplastic becomes soft and can be moulded into any shape.
Answerthermoplastics plastics can be heated and then moulded into a shape or form, but thermosetting cannot.Each plastic can be moulded into a 'shape or form', it is just that thermoplastics, once they have been moulded, they can be re-heated and moulded again, where-as once thermosetting plastics have been moulded, if re-heated and you try to remould it, it will just make it brittle and snap instead.