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.html
Note:
Thermoforming is a process where a plastic sheet is heated, formed in a mold, and then trimmed. Thermoforming uses Thermoplastic materials.
yo mamma i dont know
thermoforming plastic is completley the oppisite of thermosetting!
Polyethylene is a thermoplastic polymer.
Polyvinyl chloride is a thermoplastic polymer.
Polythene, also known as polyethylene, is a thermoplastic, not a thermosetting plastic. Thermoplastics can be reheated and reshaped multiple times without affecting their properties, while thermosetting plastics undergo a chemical change during heating and cannot be reshaped once set.
Polyvinyl chloride (PVC) is a thermoplastic polymer, which means it can be heated and molded multiple times without undergoing a chemical change. This property makes PVC suitable for thermoforming processes where it is heated and shaped into desired forms.
thermosetting plastic becomes hard when heated and deteriorates by excessive cross linking and thermoplastic becomes soft and can be moulded into any shape.
Thermoforming.
Polystyrene is a very poor conductor of heat. This is why its used as an insulator in some products.
Vacuum forming is one of the most common methods of processing plastic. The vacuum forming process involves heating a sheet of plastic until it is soft.
simple polymer are define as themosofning plastic where as long chain polymer define as thermosetting plastic
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.