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What is the characteristic of plastic ABS most commonly used in plastic molds?

Plastic mold most commonly used plastic ABS characteristics is what, today's Dongguan Plastic mold factory editor to take everyone to see. ABS because it has a lot of good performance so it is widely used, ABS material application range, injection molding process conditions and chemical and physical properties outlined below.


Typical Applications:


 Car (dashboard, tool door, wheel cover, mirror box, etc.), refrigerator,


 High-strength workers (hair dryer, stirrer, food processing machine, lawn mower, etc.), telephone shell,


 Typewriter keyboards, recreational vehicles such as golf carts and jet-type snowmobiles.


Injection molding process conditions:


     Drying: ABS material with hygroscopicity, requiring drying before processing. It is recommended that the drying conditions be at least 80 ° C to 0 ° C for 2 hours. Material temperature should be less than 0.1%.


     Melting temperature: 210 ~ 280 ℃; Recommended temperature: 245 ℃.


 Molding temperature: 200 ~ 240 ℃.


     Mold temperature: 60 ~ 80 ℃. (Mold temperature will affect the plastic parts finish, lower temperature leads to lower finish).


     Injection pressure: 100 ~ 140Mpa.


     Injection speed: medium speed.


Chemical and physical properties:


ABS is composed of acrylonitrile, butadiene and styrene three chemical monomer synthesis. Each monomer has different characteristics: acrylonitrile has high strength, thermal stability and chemical stability; butadiene has toughness, impact resistance; styrene with easy processing, high finish and high strength. From the morphological point of view, ABS is non-crystalline material. The polymerization of the three monomers produces a terpolymer with two phases, one is the continuous phase of styrene-acrylonitrile and the other is the polybutadiene rubber dispersed phase. The properties of ABS mainly depend on the ratio of the three monomers and the molecular structure in the two phases. Which can be in product design with great flexibility, and thus produced hundreds of different quality of the market ABS material. These different quality materials provide different characteristics, such as from medium to high impact resistance, from low to high finish and high temperature twist characteristics.




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