How to solve the pattern appearing on the surface of the masterbatch with PP filling
2019-11-18 09:52 来源:凯杰塑料填充母料厂家作者:信大大 Time: 2019-11-18 09:52 Source: Qiagen manufacturers of plastic filled masterbatch: letter greatly
What is the reason for the pattern of PP filler masterbatch used in the production of injection molded parts? See how Kaijie Plastics Technical Support can help customers find the cause and solve it.
Jiangsu Zhao is always an injection molding manufacturer. Recently, I encountered a problem. In order to reduce costs, I took a PP filled masterbatch to mix the raw materials for injection molding. However, the surface of the injection molded product will have patterns. This problem always occurs.
Mr. Zhao found Kaijie Plastics through the Internet and knew that Kaijie is a professional manufacturer of filling masterbatch and can provide technical support. President Zhao explained the situation directly encountered in detail. Kaijie Plastics technical consultant asked whether the PP material used by Zhao was high fat-soluble or low fat-soluble. President Zhao said that it is currently used for sports equipment and PP ’s fat-soluble. Not very high, because sports equipment requires product stiffness. 与PP原料溶脂不匹配造成的，由于赵总用的PP原料是低溶脂原料，一般低溶脂原料在螺杆里流动性比较慢，主要的作用是为了树脂原料进入模具成型慢，但是赵总用的当地的填充母料流动性偏高，导致每次进入螺杆后，填充母料在螺杆里流速要比原料快，这样的问题主要是两款料在螺杆里的相容性和塑化时间都不一样，所以赵总出现花纹的情况，其实专业名词叫产品表面塑化不好。 The technical engineer of Kaijie Plastics said that this major problem is caused by the mismatch between the PP filler masterbatch and the PP raw material fat-dissolving. Since the total PP material used by Zhao is a low-fat-soluble raw material, generally the low-fat-soluble raw material flows in the screw. The property is relatively slow, the main effect is that the resin raw material enters the mold to be formed slowly, but the local filling masterbatch used by Zhao is relatively high in fluidity, which causes the flow rate of the filling masterbatch in the screw to be faster than the raw material after each entry into the screw. This kind of problem is mainly that the compatibility of the two materials in the screw and the plasticizing time are different, so Zhao always has a pattern. In fact, the technical term is that the surface of the product is not plasticized well.
The main solution to this problem is to reduce the flowability of the filling masterbatch, and try to make the flow rate of the filling masterbatch and PP plastic consistent in the screw, so as to achieve the compatibility and plasticization of the filling masterbatch and pp plastic at the same time. ongoing.
Kaijie Plastic's technical consultant matched Zhao with a Kaijie plastic injection masterbatch ZS-02. After this sample, the product's surface pattern was completely gone, and the product was very smooth, and Mr. Zhao also thanked him. Kaijie Plastics Technical Consultant for help and technical support.
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