Flame retardant PC/ABS Taiwan Taihua AC3108

Description :

　　Flame retardant PC/ABS Taiwan Taihua AC3108

　　PC/ABS (PC+ABS alloy) AC3108/Taiwan Chemical Fiber

　　Usage: Laptop shell. Camera and office machine casing, household appliance casing

　　Overall description

　　Material status circulation, normal

　　Characteristics: Flame retardant

　　Usage: Large and small household appliances

　　Processing method injection molding

　　PC/ABS alloy is a thermoplastic made by blending PC (polycarbonate) and ABS (acrylonitrile butadiene styrene terpolymer). Combining the excellent properties of both materials, it can not only improve the heat resistance and tensile strength of ABS, but also reduce the viscosity of PC melt, reduce internal stress of materials, improve the processability of products, enhance low-temperature impact resistance, and chemical resistance. Therefore, it is widely used in fields such as automotive parts, home appliance casings, and electrical appliance casings. Currently, with the rapid development of electric vehicles, it also has broad application prospects in the charging pile industry.

　　Speaking of the common problems that PC/ABS is prone to in injection molding, silver wire, also known as silver stripe, water spray, material flower, etc., is a silver whitish filamentous stripe phenomenon that appears on the surface of the product along the flow direction. To solve this problem, we must first identify the root cause of the problem.

　　Firstly, let's analyze the main causes of silver wire defects? The answer is: interference from gases, which are mainly composed of three components:

　　<1> Air: Air sucked in during the melt adhesive and injection stage

　　<2> Moisture: The moisture contained in the material itself

　　<3> Cracking gas: gas produced by high-temperature hydrolysis/thermal decomposition

　　Silver wire defects are mainly caused by gas interference, and PC/ABS material processing is particularly sensitive to moisture. Therefore, when silver wire defects occur, it is necessary to first check whether the material is dry enough. After confirming that the material is dry enough, the injection molding process can be adjusted to improve the silver wire defects. Meanwhile, poor injection molding of silver wire is also related to mold exhaust. So it is necessary to comprehensively consider various factors such as materials, molds, machines, injection molding processes, etc. in order to better solve the problem.

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• AC3108