Just about everything. Look around you. If it is man-made and you are not absolutely sure that it is metal, wood/paper, or glass/ceramic, then it is probably plastic. This includes many things that look like wetal, wood, or paper, and includes synthetic fabrics(cloth) Sitting here typing, there is nothing within my reach that is not mostly or all plastic except me, my cotton t-shirt, my wood desk (plastic coated), the case and connectors on my computer, the glass screen on the monitor, various metal screws and the metal tip on my pen.
Amazingly, this is all new in the last 40 or so years. At the end of the 50's, about the only plastic in a home was nylon stockings and vinyl records. Milk came in glass or waxed cardboard. Cars were made of metal, tables were made of wood, cloths were made of cotton and wool, toys were made of metal and wood, and computers were made of . . . well they used glass tubes and weren't in homes.
No, HIPS (High-Impact Polystyrene) is a thermoplastic, not a thermosetting plastic. Thermoplastics can be melted and reshaped multiple times, while thermosetting plastics undergo a chemical reaction during curing that makes them rigid and non-meltable.
Polyester resin is a thermosetting resin, generally a copolymer
A helmet is typically made from thermoplastic material, which can be reheated and reshaped. Thermosetting plastic, once molded, cannot be reheated and reshaped.
Two common plastic groups used for heat and moulding plastics are thermoplastics, which can be melted and remoulded multiple times through heating and cooling processes, and thermosetting plastics, which undergo a chemical change during moulding and cannot be remelted or reshaped after the initial moulding process.
Thermosetting
Many things are made out of "Non Thermoplastics", which are called Thermosetting Polymers. Basically there are two kinds of Plastics: Thermoplastic, which are heated and injected under pressure into molds to create new items. These are plastics that get soft when heated. And Thermosetting Polymers that are resins that are either combined with a substrate or used alone, then poured into a mold, then subjected to heat and pressure to create items or sheets. These are plastics that get hard when heated. Things that are made from Thermosetting Polymers (Non thermoplastic): sheets of fiberglass and phenolic out of which circuit board found in computers are made from, knobs, wheels, etc.
The 2 types of plastics are thermoplastic and thermosetting polymers.( :
Thermoplastic plastics melt when heated and therefore can be easily molded and recycled. In comparison, Thermoset plastics utilize a chemical reaction to cure and irreversibly set.
the opposite to thermosetting plastic is thermoplastic
thermoplastic,polyethylene,acrilic
Thermoplastic plastics melt when heated and therefore can be easily molded and recycled. In comparison, Thermoset plastics utilize a chemical reaction to cure and irreversibly set.
thermoplastic plastics (recyclable)thermosetting plastics (non-recyclable)
thermosettings and thermoplastics. A thermoplastic can be remelted and reused, a thermoset cannot.
I believe that thermoplastics are used because they can be melted down again. This means they are are often used for things like bottles because they can be recycled easily compared to other plastics which cannot be remoulded. Hope this helps.
thermoplastic
LEXANLexan is a registered trademark for SABIC Innovative Plastics' (formerly General Electric Plastics) brand of polycarbonate resin thermoplastic
polypropylene, urethane