High-modulus impact polypropylene YPJ-706 not only has high rigidity and thermal stability, good impact resistance and processing performance, but also environmental protection and hygiene. It can be used for injection or molding of caps and household appliances, sports equipment and toys. Injection molding. The beverage bottle cap is small, but it can not be simple: in order to achieve a good sealing function, the bottle cap material must have a perfect balance of rigidity and toughness; to facilitate opening, the cap needs to have a suitable torque design; as used as food packaging The material must also be non-toxic and tasteless; in addition, the bottle cap will also be printed with iconic patterns and production dates... all of which test the quality of the cap material. For a long time, the supply of raw materials for domestic caps has been monopolized by foreign companies and joint ventures. As one of the largest polypropylene manufacturers in China, Yangzi Petrochemical fully utilizes its own advantage of an annual output of 400,000 tons of polypropylene devices and related small-scale and pilot-scale devices. It organizes scientific research personnel through analysis and research, and adopts the first copolymerization method in China. Polypropylene cap special material YPJ-706 was developed and industrialized. After performance testing, the performance of the special material is in full compliance with the requirements of polypropylene products for caps. Due to its excellent performance and environmental protection, this product can be used not only for the production of high-grade bottle caps, but also for the manufacture of parts and toys for household appliances. Performance and application The highly rigid impact polypropylene has always been a high-performance product pursued by the market. High-modulus impact polypropylene YPJ-706, as a copolymer of propylene and ethylene, is not only highly rigid but also has a stable melt flow. In the process of high-speed production of bottle caps, product demoulding effect is good. At the same time, the products produced by this material have no odor. They passed the hygiene inspection of the CDC of Jiangsu Province, passed the SGS test, and met the FDA food packaging material hygiene standards. In 2007 and 2009, it passed the certification of Coca-Cola bottle caps. The typical values ​​of its technical specifications are shown in the table. As the performance advantage is very obvious, the high modulus YPJ-706 has been successfully applied in several cap manufacturers in China, such as Shanghai Ziri Packing Co., Ltd. and Hongquan International Co., Ltd. At present, the material has been produced in nine batches with a sales volume of more than 10,000 tons, and is gradually replacing imported grades. At the same time, as a high-quality, medium-MFR copolymer PP, this product can also be applied to various types of injection molding products such as containers, toys, household appliance parts and auto parts, in addition to pressure-resistant, hot-filled bottle caps. Production, market demand is extensive. Production Process High-modulus impact polypropylene YPJ-706 is a block copolymer of propylene and ethylene copolymerization. Its production process is completely determined by the operating conditions of the existing installations of Yangzi Plastic Factory, that is, the original plastic factory J The production process parameters of the series of products were partially adjusted, and the formulation of the additives was improved. Its main process features are: increase the hydrogen content in the polymerization process to increase the melt index (MFR), and add a certain amount of ethylene in the polymerization to improve the impact resistance of the product. In addition, compounding additives are added at the granulation stage to increase the rigidity and smoothness of the product, and at the same time reduce the molding shrinkage of the product. The production process is easy to control and has strong operability of the process, which greatly reduces the chance of a large number of transitional material shortages caused by previous brand switching, and fills the gap in the production and development of medium-sized MFR high-modulus impact products. Through the above adjustment of the production process and composite auxiliaries, the product has obtained more excellent rigidity and toughness, and has the characteristics of small shrinkage, good heat resistance and not easy to crack, and is suitable for high speed molding and injection molding processes. The film has excellent heat sealing performance and excellent transparency, is one of the main packaging composite base materials, used in the production of high-temperature boiling film, vacuum aluminum coating film, the market is very optimistic.Moreover, with the development of domestic production equipment, some of the technical indicators have reached the international advanced level.As a result, the threshold to enter the film production is lower and lower.Because of this, some enterprises rush to import the flow of film production line in order to reach the designated position, the higher the level, the better, while leaving the market demand and the return on investment aside, which will cause huge waste of resources. TPE Film,UV Resistance TPE Film,TPE Waterproof Film,Medical Disposable TPE Film XINLE HUABAO MEDICAL PRODUCTS CO.,LTD. , https://www.huabaomedical.com
New polypropylene cap special material YPJ-706