Continue to explain the remaining 4 materials:
6. Polycarbonate + Acrylonitrile Butadiene Styrene (PC+ABS Blend)
Polycarbonate and Acrylonitrile Butadiene Styrene are some of the most commonly used plastics for electronic enclosures. A PC+ABS thermoplastic blend combines the positive qualities of both PC and ABS.
The automotive, electronics, and telecommunications industries widely use PC+ABS blends.
Attributes
Has a very high impact strength
Can withstand sub-zero temperatures
Great chemical resistance
Has the highest flame-resistance level of UL 94 V-0
Considerations
Best for indoor or limited outdoor plastic electrical enclosures
Endures moderate corrosive conditions
7. Polymethyl Methacrylate, Acrylic, Plexiglas (PMMA)
Polymethyl Methacrylate is also known as acrylic, plexiglass, or acrylic glass and by several trade names.
Acrylic is often used in electronic enclosures when the designer wants clear thermoplastic material without using polycarbonate. Because PMMA is infrared transparent, it’s also perfect for optical and remote-control applications.
Attributes
Transparent
Lightweight
Shatter-resistant
Seventeen times more impact-resistant than glass and easier to handle and process
392°F boiling point
Acrylic sheets come in a variety of grades, colors, tints, sizes, and thicknesses
Varieties with fluorescence, abrasion resistance, bullet resistance, UV tolerance, anti-static qualities, and abrasion resistance.
Infrared transparent with some types transmitting up to 92% of light
Considerations
Poor impact resistance
More brittle than ABS
Often used together with ABS parts to ensure product strength
8. Polyphenylene Ether+Polystyrene (PPE+PS)
Polyphenylene Ester (PPE) and Polystyrene (PS) is a common blend.
PPE+PS has many electrical applications as plastic enclosures for electronics such as relays and housings for transformers.
Attributes
Great mechanical properties
Excellent thermal properties, including good resistance to heat distortion
Great electrical properties
High resistance to chemicals
Considerations
Best suited for indoors rather than as an outdoor electronic enclosure
UV light can cause color distortion
9. Styrene Ethylene Butadiene Styrene (SEBS)
SEBS is a thermoplastic elastomer, which has an elasticity like rubber.
Because it is comfortable to the touch, SEBS is an excellent option for plastic electronic enclosures for handheld cases. It’s also a great alternative to PVC in small
Plastic Toys.
Attributes
Weather-resistant
Chemical-resistant
Pleasant rubber-like feel
