i am a GCSE student in Southport and in chemistry i am learning all about plastic's. "Thermosetting" plastic is used because once it is heated and moulded into a shape it can not be reheated and moulded again. However "thermoplastic" plastics can. The particular use of your laptop casing does not require and reshaping or remoulding so to give the laptop most stability and strength the "thermosetting" plastic is used as they are stronger.
Conor Smyth
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.
The bulk of the material used to make a microwave is steel, and not thermosetting plastic. The cavity (the cooking space) is a metal "cave" with a door on it. There will be some components in an oven that are made of thermosetting plastic, but the bulk of the construction material is mild steel. Steel "seals in" microwave energy. Microwaves can pass through most thermosetting plastic. And that would be bad.
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.
Epoxy is a good example Or rubber. Basically any plastic that transforms with heat, and cant be transformed back. Thermosetting plastic or epoxy is a compond that when heated will cure and maintain it's shape even when heated again. Usually the compaound has to be mixed with hardeners and fillers then heated. Once cooled they will remain hard even if re-heated.
If they were metal and the live had somehow come loose and was touching the casing, it would make the plug case live too. However electricity does not flow through plastic because the electrons can't pass.
Thermosetting Plastic
Thermosetting Plastic
thermosetting plastics
Dr. Leo Baekeland made the first thermosetting plastic. He made this in the year of 1909 and it was originally called Bakelite.
hey can only be heated and manipulated once so if you make a mistake you have wasted the plastic
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.
The bulk of the material used to make a microwave is steel, and not thermosetting plastic. The cavity (the cooking space) is a metal "cave" with a door on it. There will be some components in an oven that are made of thermosetting plastic, but the bulk of the construction material is mild steel. Steel "seals in" microwave energy. Microwaves can pass through most thermosetting plastic. And that would be bad.
A laptop casing is make from a template, its basically the skin of the system. Companies like HP, Dell etc can modify the color before all the components can be placed.
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.
No, epoxy is not a thermoplastic. Epoxy is a thermosetting polymer, which means it undergoes a chemical reaction to harden irreversibly when exposed to heat or a curing agent. This makes it different from thermoplastics, which can be melted and reshaped multiple times.
a car battery is made of a plastic casing, lead plates and a sulfuric acid/water mixture
Thermosetting plastics are a type of plastic made of long, cross-linked molecule chains. Their structures are very rigid. Thermosetting plastics can be moulded and shaped when heated, yet they cannot be heated again after they set.