Thermoplastic

Definition

Thermoplastic refers to a material that softens when heated and re-hardens when cooled.

Purpose

Thermoplastics are used for their ability to be molded and remolded multiple times without undergoing chemical change, making them highly versatile in manufacturing and fabrication processes. This property allows for recycling and reprocessing of thermoplastic materials.

Examples of Use

1. Packaging: Thermoplastics like polyethylene and polypropylene are widely used in packaging for bottles, containers, and films.
2. Automotive Parts: Components such as bumpers, dashboards, and interior panels are often made from thermoplastic materials for their durability and ease of manufacturing.
3. Consumer Goods: Products such as toys, household items, and electronic casings are commonly made from thermoplastics.

Related Terms

• Thermosetting Polymers: Polymers that, once cured, cannot be remelted or reshaped.
• Injection Molding: A manufacturing process for producing parts by injecting molten thermoplastic material into a mold.
• Extrusion: A process used to create objects of a fixed cross-sectional profile by pushing thermoplastic material through a die.

Notes

• Recycling: Thermoplastics are recyclable, making them an environmentally friendly option compared to thermosetting plastics.
• Material Properties: The physical properties of thermoplastics, such as strength and flexibility, can be altered by varying the formulation and processing conditions.