Research and development of hollow blow molding formula for blow molding products factory


Author: MULAN -Plastic Molding Manufacturer

In the research and development direction of large and medium-sized hollow blow molding product formulas, the blow molding product factory will, on the one hand, become more functional, constantly pursue the improvement of product functions and prolong the service life; on the other hand, while optimizing product quality, Pursue a relatively large reduction in raw material costs and operating costs, so as to obtain greater benefits. When the blow molding factory designs the formula, it will focus on three basic principles. 1. Try to meet various functions and uses of hollow blow molding products; 2. The plastic raw material formula has good processing performance; 3. Reduce production costs through formula design and improvement. Due to the continuous expansion of the range of extrusion blow molding products and engineering support, higher technical requirements are put forward for the performance of blow molding products. Such as automobile, car, high-speed rail industry, aviation, aerospace, navigation, machinery, electronics, chemical industry, logistics, pharmaceutical packaging, food and beverage packaging, daily household, agriculture, engineering applications, water surface floating body and many other supporting blow molding products, etc. , have put forward high requirements for many superior properties such as high strength, high stiffness, high precision, long life, and good temperature resistance for plastic blow molding products. Therefore, blow molding product factories attach great importance to the modification of these blow molding products. Plastic modification methods mainly include physical modification and chemical modification. Chemical modification refers to the modification method of changing the type and combination of atoms or atomic groups on the polymer molecular chain by chemical means. Plastics can be modified through block copolymerization, graft copolymerization, crosslinking reaction, or the introduction of new functional groups. The way to form new specific polymer materials; chemical modification can make products obtain new functions or better physical and chemical properties. In the actual operation of formula modification of extrusion blow molding products, blow molding product factories generally use more physical modification technology, but less chemical modification technology. Physical modification technology of extrusion blow molding products is currently commonly used Methods include: ① filling modification; ② blending modification; ③ reinforcement modification; ④ toughening modification; ⑤ nanocomposite modification; ⑥ functional modification, etc. For example, use a plastic formula table for an outdoor plastic seat: Plastic grade 7000F 6098 18D EVA Masterbatch Proportion % 40 40 18 1.5-1.8 0.5-0.2 7000F, 6098 are high-density polyethylene with high molecular weight. 18D is low density polyethylene. EVA is mainly used as a processing aid in this formula to improve the appearance quality of blow molded products and enhance the impact ability of aviation, and has a longer resistance to environmental stress cracking time. Blow molding product factories will invest a lot of research and development resources in improving the process. In the long run, only with core competitiveness can sustainable development be achieved. Proficient in moulds|blow molding products factory|started in 1998, trustworthy.

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