🌐 Tipos de Plásticos: Termoplásticos, Termoestables, Elastómeros 🌐 [Fácil y Rápido] | QUÍMICA |

What is Plastic?

Characteristics and Classification of Plastics

• Plastic is a synthetic material made from polymers derived from petroleum, characterized by its flexibility, resistance, lightweight nature, electrical and thermal insulation properties, and cost-effectiveness.

• Plastics can be classified into three main categories based on their molecular structure: thermoplastics, thermosets, and elastomers. Thermoplastics can be melted and reshaped multiple times but lose properties with each recycling.

• Thermoplastics are weakened by heat but regain strength upon cooling. Common examples include polyethylene, polypropylene, polyvinyl chloride (PVC), polystyrene, polyethylene terephthalate (PET), nylon, and Teflon.

• Thermosets can only be molded once during manufacturing; they burn rather than melt when reheated due to permanent molecular bonding. Examples include polyurethane, certain resins like polyester and epoxy, bakelite, and melamine.

• Elastomers are known for their elasticity; they return to their original shape after deformation. Their molecules form large chains that align when stretched but revert quickly to the original state. Natural rubber is a prime example of an elastomer.