What are the main materials of the plastic shell of the power charger? With the development of electronic technology, a large number of USB chargers and charger pd have been popularized into our daily life. We have been familiar with these power conversion devices. Our smart phones, portable micro thermal printers, iPad tablets, laptops and other handheld and portable electronic devices will use USB cable connectors and PD power chargers.
The USB cable connector and chargers pd are usually made of high-density plastic materials. According to the usage, plastics can be divided into ordinary grade, temperature resistant grade, flame retardant grade, electroplating grade, etc. Our common power chargers mainly use plastics, including PC, ABS and PC + ABS.
Polycarbonate (PC) is a kind of strong and tough thermoplastic resin. It has some characteristics: first is the high strength with tensile strength of 69mpa and bending strength of 96mpa; second, it is resistant to high temperature and can withstand 130 ℃ for a long-term use; third, it is transparent and non-toxic; fourth, the color matching and surface coating of raw materials are not as good as ABS. PC material has good and constant electrical insulation in a wide range of temperature and humidity, which is an excellent insulating material. At the same time, its good flame resistance and dimensional stability make it a broad application field in the electronic and electrical industry of USB cable connector. And this material shapes the good performance of the charger pd.
Acrylonitrile butadiene styrene copolymer is a thermoplastic polymer structure with high strength, good toughness and it is easy to process and shape. It can perform normally at - 25 ℃ ~ 60 ℃. Moreover, it has good formability. The processed product has a smooth surface and is easy to dye and electroplate.
Performance characteristics of ABS material:
① It has low strength, tensile strength of 43mpa and bending strength of 79mpa.
② It is not temperature resistant, and the long-term service temperature shall not be higher than 60 ℃.
③ Good fluidity, coloring, surface spraying and electroplating properties.
ABS materials are widely used in household appliances, panels, masks, assemblies, accessories, etc., especially household appliances, such as washing machines, air conditioners, refrigerators, electric fans, etc. In addition, they are also widely used in the plastic modification.
Acrylonitrile butadiene styrene copolymer is a general thermoplastic polymer. The synthetic materials of PC and ABS have the characteristics of the former two and have excellent molding and processing properties and good fluidity. PC + ABS material is easy to process, paint and color, and it has good dimensional stability and surface gloss. It can also carry out secondary processing properties such as metal spraying, electroplating, welding and bonding. Because ABS combines the characteristics of its three components, it has excellent comprehensive performance and has become one of the preferred plastics for charger pd components, household appliances, computers and instruments.
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