Televisions utilize a variety of materials in their construction, with plastics playing a significant role, particularly in the exterior casing and various internal components. Based on manufacturing processes, thermoplastics such as polyethylene are among the main types used.
Key Plastics in Television Manufacturing
While a modern television set is composed of many different materials, including glass, metal, and various electronic components, plastics are essential for many parts. The choice of plastic depends heavily on the specific application within the TV, requiring properties like durability, heat resistance, electrical insulation, or flexibility.
Thermoplastics for the Casing
One of the primary uses of plastic in a TV is for the exterior housing or casing. The reference highlights that thermoplastics such as polyethylene are commonly used for this purpose.
Why Thermoplastics Are Preferred for Casings
The selection of thermoplastics like polyethylene for the TV casing is due to their inherent properties that align well with manufacturing processes. As mentioned in the reference:
- Melt and Remold: Thermoplastics can be melted down and remolded repeatedly without significant degradation. This property is crucial for injection molding, a common method for creating the complex shapes of TV casings efficiently.
- Cost-Effectiveness: Many thermoplastics, including polyethylene, are relatively inexpensive compared to other materials, helping to keep manufacturing costs down.
- Durability: They provide a lightweight yet sturdy enclosure that protects the internal components from physical damage.
Other Plastics Used in TVs
Beyond the main casing, various other plastic types are used throughout a television, depending on the specific requirement:
- Internal Components: Plastics with specific heat resistance and electrical insulation properties are used for circuit board mounts, wiring insulation, and internal frames.
- Stands and Mounts: Durable, rigid plastics are often used for the TV stand or parts of mounting brackets.
- Remote Controls: The remote control itself is typically made almost entirely of plastic.
In summary, while a television contains many different plastics tailored to specific needs, thermoplastics such as polyethylene are prominently used, particularly for the exterior casing due to their ability to be easily melted and remolded during manufacturing.
