Plastic Inside Phones and Computers
About this Article
Lines of Inquiry
- The different forms plastic can take inside phones, computers, cables, and other electronic devices.
- The relationship between material properties and the jobs plastic performs, including protection, insulation, flexibility, and structural support.
- Connections between combining materials to make electronics work effectively and the difficulty of separating those materials later.
Guiding Questions
- Why might one electronic device contain several different kinds of plastic?
- How can plastic both support parts physically and help control where electricity travels?
- Why can materials that work well together during use become difficult to separate later?
Plastic Inside Phones and Computers
Plastic Inside Everyday Technology
Phones, tablets, and computers may look as though they are mostly glass and metal. But plastic is built into many parts of these devices. It can appear in outer cases, keyboards, buttons, plugs, cable coverings, and supports inside the device.
Electronic parts are components inside a device that control electricity, process information, or help the device work. Plastic can hold and protect many of these parts while helping devices stay compact. Synthetic polymers are human-made materials built from long chains of molecules, and many plastics are synthetic polymers. In a standard modern desktop computer, synthetic polymers can make up about 23 percent of the machine’s total weight.
Different plastics can do different jobs inside a desktop computer. ABS plastic may be used in parts of the outer case. Polycarbonate can be used in cooling-fan blades. PVC can cover wires and cables, while nylon may be used in connectors, clips, and small supports inside the computer.
Light Parts for Portable Devices
Portable technology needs to be strong enough for daily use without becoming too heavy to carry. Plastic can help because it can be shaped into lightweight cases, keys, buttons, plugs, and supports inside a device.
Some plastic parts also provide insulation. Electrical conductors allow electric current to move easily, while insulation reduces or blocks that movement. This helps protect people and the parts inside a device. In a small electronic device, lightweight plastic can sometimes provide both support and insulation.
Protection From Bumps and Daily Use
Technology is handled again and again. Phones are picked up and put down, laptops travel in bags, and keyboard keys may be pressed thousands of times. Plastic can be shaped into shells, frames, keys, and supports that help devices handle this repeated use.
Plastic can also be rigid in one part and flexible in another. This lets designers choose different plastics for different jobs. A hard outer case, a flexible cable covering, and a small support inside the device may all use different kinds of plastic.
Plastic Around Electronic Parts
Inside a device, circuitry is the system of connected electrical paths and parts that controls how electricity moves. These paths need protection so electrical current does not reach places where it should not go.
Plastic often surrounds wires and other electrical parts because it can work as an insulator. Internal wiring may be coated in PVC plastic to help prevent short circuits and electrical fires. Some PVC insulation is designed to withstand temperatures up to about 105°C. This safety job helps explain why replacing plastic inside electronics is not always as simple as removing a plastic case or cover.
Why Tech Design Uses Mixed Materials
No single material can do every job inside a phone or computer. Metal may provide strength or carry electricity. Glass can make a clear screen. Plastic can provide low weight, flexibility, protection, and insulation.
Designers use mixed materials, which are combinations of different materials within one product or part, when one material cannot provide everything that is needed. Mixed materials allow electronic devices to combine strength, flexibility, insulation, protection, and other useful properties.
These combinations can solve problems while a device is being used, but they can create problems later. Mixed materials may make a product harder to take apart, repair, or recycle. Plastic is useful in electronics partly because it works together with other materials, not because it replaces them all.
Plastic Inside Everyday Technology
Phones, tablets, and computers may look as though they are mostly glass and metal, but plastic is built into many parts of these devices. It can appear in outer shells, keyboards, buttons, plugs, cable coatings, and supports inside the case.
Pieces inside electronic devices that help control electricity, store information, or make the device work are electronic parts. Plastic helps hold and protect many of these parts while keeping devices compact. Synthetic polymers are human-made materials built from long chains of molecules, and many common plastics are synthetic polymers.
In a standard modern desktop computer, synthetic polymers can make up roughly 23 percent of the machine’s total weight.
Different plastics may be used for different jobs inside a desktop computer. ABS can be used in parts of the outer case, polycarbonate in cooling-fan blades, PVC around wires and cables, and nylon in connectors, clips, and small internal supports.
Light Parts for Portable Devices
Portable technology needs to be strong enough for daily use without becoming too heavy to carry. Plastic can help because it can be shaped into lightweight cases, keys, buttons, plugs, and internal supports.
Plastic parts can also provide insulation. Insulation blocks or reduces electrical movement, while conducting materials allow current to pass more easily. This matters in devices that must hold many electrical parts close together inside a small space. A lightweight material that can also insulate can perform more than one useful job.
Protection From Bumps and Daily Use
Technology is handled constantly. Phones are picked up and put down, laptops travel in bags, and keyboards are pressed thousands of times. Plastic can be shaped into protective shells, frames, keys, and supports that help devices handle this repeated use.
Plastic can also be made rigid in one part and flexible in another. This allows designers to create protective pieces without making every part heavy or stiff. A hard outer shell, a flexible cable coating, and a small internal support may all use different plastics because each part needs to perform a different task.
Plastic Around Electronic Parts
Circuitry, a system of connected electrical paths, allows electricity to move through phones, computers, and other devices. These electrical paths need protection from unwanted contact.
Plastic often surrounds wires and other electrical components because it can act as an insulator. Internal wiring may be coated in PVC plastic to reduce the risk of short circuits and electrical fires. Some PVC insulation is designed to withstand temperatures up to about 105°C.
This protective role helps explain why replacing plastic inside electronics is not always as simple as removing a case or cover.
Why Tech Design Uses Mixed Materials
No single material can do everything a phone or computer needs. Metal may provide strength or conduct electricity, glass can form a clear screen, and plastics can provide light weight, flexibility, protection, and insulation.
Designers use mixed materials, different materials combined in one product, to provide several useful properties. Mixed materials help electronic products combine strength, flexibility, insulation, protection, and other functions.
The use of mixed materials can create a later problem because tightly joined materials are often more difficult to separate for repair or recycling. In electronics, plastic is useful partly because it works alongside other materials, not because it replaces them all.
Plastic Inside Everyday Technology
Phones, tablets, and computers may look as though they are mostly glass and metal, but plastic is built into many parts of these devices. It can appear in outer shells, keyboards, buttons, plugs, cable coatings, and supports inside the case.
Components inside electronic devices that control electricity, process information, or help the device operate are electronic parts. Plastic helps hold and protect many of these parts while keeping devices compact. Synthetic polymers are human-made materials built from long chains of molecules, and many common plastics are synthetic polymers. In a standard modern desktop computer, synthetic polymers can make up roughly 23 percent of the machine’s total weight.
In a desktop computer, different plastics may be used for different jobs, such as ABS in parts of the outer case, polycarbonate in cooling-fan blades, PVC around wires and cables, and nylon in connectors, clips, and small internal supports.
Light Parts for Portable Devices
Portable technology needs to be strong enough for daily use without becoming too heavy to carry. Plastic can help because it can be shaped into lightweight cases, keys, buttons, plugs, and internal supports.
Some plastic parts also provide insulation. Electrical conductors allow current to move readily, while insulation reduces or blocks that movement to protect people and device components. This matters in devices that must hold many electrical parts close together inside a small space. A lightweight material that can also insulate can perform more than one useful job.
Protection From Bumps and Daily Use
Technology is handled constantly. Phones are picked up and put down, laptops travel in bags, and keyboards are pressed thousands of times. Plastic can be shaped into protective shells, frames, keys, and supports that help devices handle this repeated use.
Plastic can also be made rigid in one part and flexible in another. That allows designers to create protective pieces without making every part heavy or stiff. A hard outer shell, a flexible cable coating, and a small internal support may all use different plastics because each part needs to perform a different task.
Plastic Around Electronic Parts
Inside a device, circuitry, a system of connected electrical paths and components, controls how electricity moves through the device. These electrical paths need protection from unwanted contact.
Plastic often surrounds wires and other electrical components because it can act as an insulator. Internal wiring may be coated in PVC plastic to reduce the risk of short circuits and electrical fires, and some PVC insulation is designed to withstand temperatures up to about 105°C. This protective role helps explain why replacing plastic inside electronics is not always as simple as removing a case or cover.
Why Tech Design Uses Mixed Materials
No single material can do everything a phone or computer needs. Metal may provide strength or conduct electricity, glass can form a clear screen, and plastics can provide light weight, flexibility, protection, and insulation.
Designers use mixed materials, combinations of different materials within one product or component, when one material cannot provide every needed property. Mixed materials allow electronic products to combine strength, flexibility, insulation, protection, and other functions.
These combinations solve problems during use, but they can create new ones later. The use of mixed materials can make a product more difficult to separate, repair, or recycle. In electronics, plastic is useful partly because it works alongside other materials, not because it replaces them all.
Plastic Inside Everyday Technology
Phones, tablets, and computers may look as though they are mostly glass and metal, but plastic is built into many parts of these devices. It can appear in outer shells, keyboards, buttons, plugs, cable coatings, and supports inside the case. These plastic parts may be easy to overlook because they are built into the device rather than appearing as separate objects.
Electronic parts are components inside phones, computers, and other devices that help the device work. Plastic helps hold and protect many of these parts while keeping devices compact. Synthetic polymers are human-made materials built from long chains of molecules, and many common plastics are synthetic polymers. In a standard modern desktop computer, synthetic polymers can make up roughly 23 percent of the machine’s total weight.
Different plastics may also be chosen for different jobs inside the same computer. ABS can be used in parts of the outer case, polycarbonate in cooling-fan blades, PVC around wires and cables, and nylon in connectors, clips, and small internal supports. The plastic inside a computer is therefore not one single material doing one single job.
Light Parts for Portable Devices
Portable technology needs to be strong enough for daily use without becoming too heavy to carry. Plastic can help because it can be shaped into lightweight cases, keys, buttons, plugs, and internal supports. A material that adds protection without adding too much weight is especially useful in phones, tablets, and laptops that people carry often.
Some plastic parts also provide insulation. Insulation reduces or blocks the movement of electrical current where that movement would be unsafe or unwanted. This matters in devices where many electrical parts are packed closely together inside a small space. A plastic part can therefore do more than one job, helping support or protect the device while also reducing unwanted electrical contact.
Protection From Bumps and Daily Use
Technology is handled constantly. Phones are picked up and put down, laptops travel in bags, and keyboards may be pressed thousands of times. Plastic can be shaped into protective shells, frames, keys, and supports that help devices handle this repeated use.
Plastic does not have to behave the same way in every part of a device. It can be made rigid where a strong shell is needed and flexible where a cable or connector needs to bend. A hard outer case, a flexible cable coating, and a small internal support may all use different plastics because each part has a different job.
Plastic Around Electronic Parts
Inside a device, circuitry, a system of connected electrical paths and components, allows different parts of the device to receive and control electrical current. These electrical paths need protection from contact that could cause a problem.
Plastic often surrounds wires and other electrical components because it can act as an insulator. Internal wires may be coated in PVC plastic to reduce the risk of short circuits and electrical fires. Some PVC insulation is designed to withstand temperatures up to about 105°C. This protective role helps explain why replacing plastic inside electronics is not always as simple as removing a case or cover. Some plastic is performing an important electrical job inside the device.
Why Tech Design Uses Mixed Materials
No single material can do everything a phone or computer needs. Metal may provide strength or carry electricity, glass can form a clear screen, and plastics can provide low weight, flexibility, protection, and insulation. Designers combine these materials because different parts of the device need different properties.
Electronic devices often rely on mixed materials, different materials combined because each provides a useful function. These combinations allow one product to include strong parts, flexible parts, conducting parts, and insulating parts while still fitting together in a compact device.
The same combinations that help a device work can create difficulties later. Parts that are tightly joined together may be hard to separate once the device becomes waste. Mixed materials can therefore make repair, sorting, and recycling more difficult, even though combining them helped the device work effectively in the first place.
