Mobile phone casing refers to the casing of mobile phones. At present, the commonly used plastic materials for mobile phone casings mainly include PC, ABS and PC+ABS. Japanese mobile phones mainly use PC+ABS, and even use ABS for mobile phone casings.
The news that "mobile phone cases contain super carcinogens" is a bit outrageous. In fact, mobile phone users should pay more attention to the fact that long-term use of mobile phone cases will carry a lot of bacteria.
There are no carcinogens in mobile phone cases, but when you buy such products, you should try to avoid fake phone cases.
material classification
Whether it is in mold design, injection molding technology or coating performance, there are great breakthroughs, and the proportion of using Pc materials for mobile phone cases is rising. It is preliminarily estimated that the proportion of Pc materials used in mobile phone casings has exceeded 50%. And now there is a film treatment on the mobile phone shell, which has greatly improved the appearance. Plastics can be divided into general grade, temperature resistance grade, impact resistance grade, flame retardant grade, electroplating grade, etc. according to their use.
1PC scientific name polycarbonate. Material performance characteristics:
①High strength, tensile strength 69MPa, bending strength 96MPa.
②High temperature resistance, long-term use can withstand a temperature of 130 degrees Celsius.
③Good transparency and non-toxic.
④The color matching and surface coating of raw materials are not as good as ABS.
⑤Pc should choose a high liquidity grade. It is suitable for flip phones and mobile phones used in harsh environments.
2 ABS (acrylonitrile-butadiene-styrene copolymer) material performance characteristics:
①Low strength, 43MPa tensile strength and 79MPa bending strength.
②Insensitive to temperature, the long-term use temperature should not be higher than 60 degrees Celsius.
③Good fluidity, coloring, surface spraying and electroplating properties.
3 Pc and ABs composite material, taking the characteristics of the former two
has excellent molding processing performance, good fluidity, high strength (tensile strength 56MPa, bending strength 86MPa). Pc+ABS materials are mainly used for bar machines and flip machines with general appearance and color requirements but no special requirements for the environment.
