The inner tube of the drum washing machine made of polypropylene. The inner tube of the drum washing machine made of polypropylene. Photos: 123 Maoming Petrochemical No. 1 polypropylene device uses a new modified agent, which is successfully tried out that the home appliances that can replace the imported products can be used to use the high-rigid polyetrythrhylene PPB-MN10-S. At present, the market for home appliances, Gao Gang’s anti -rush convergence polyetryth, mainly comes from South Korea, including South Korea SK, South Korea, and Samsung, South Korea. No. 1 polypropylene device is a trial home appliances for high-rigid anti-polypropylene PPB-MN10-S, which is the first high-rigidity, fall resistance, anti-aging, high gloss The advantages are mainly applicable to the home appliance industry, and the annual demand is expected to exceed 10,000 tons. As one of the four major plastic materials, polypropylene has excellent comprehensive performance, good chemical stability, good molding processing performance and relatively low prices. After modification The impact intensity, molding contraction and other performance have been greatly improved, which can replace the expensive HIPS and ABS resin, which is applied to home appliances. According to relevant data, my country’s current polypropylene currently has 16.1%of imported dependence. According to the data released by the China Polypropylene Market Investment Analysis and Forecast Report of China Polypropylene Market in 2017-2021 \”, the data showed that in 2015, the top five markets in my country’s primary-shaped polypropylene imports are South Korea, Saudi Arabia, Singapore, and Taipin Golden Horse. Customs areas, UAE. The new product of high -quality anti -polypropylene products in Maoming Petrochemical will help increase the production capacity of high -quality polypropylene in China and reduce dependence on imported products. Extended reading: What are the applications of modified polypropylene materials in home appliances? The modification of polypropylene materials is generally several ways such as enhanced mineral enhancement, weather resistance, glass fiber enhancement, flame retardant modification, and super tough modification. Large application. Mineral filling modification PP mineral filling is the most widely used modified approach. Add minerals such as calcium carbonate, talc powder, silicon ash, glass beads, and cloud -mother powder to PP raw materials. These minerals can not only improve the mechanical properties and impact toughness of PP materials to a certain extent, reduce the molding and shrinkage rate of PP materials to strengthen its size stability, and due to the huge cost of minerals and PP substrates, it can be significantly large. Reduce the cost of PP materials. At present, the application parts of mineral filling modified PP in home appliances mainly include: the inner barrels, pulsses, and clothing ports of the pulley washing machine and the drum washing machine; Shells; shells and bases of rice cookers. The inner bucket of the washing machine was originally made of stainless steel. In the 1990s, Basell and South Korea Samsung began to study \”using modified PP to replace stainless steel to make the inner barrel in the drum washing machine\” and realize commercialization. Since then, washing machine companies have begun to use such modifications in large quantities. Minerals of this material are addedThe quantity is as high as 40%, its stretching strength is 33MPa, the fracture and extension rate can reach more than 90%, and the impact strength of the gap is about 10kj/m2. At present, in addition to the inner barrels of the washing machine, this modified PP is also used to manufacture pulp wheels and accessories. Only Haier Group’s annual dosage is about 1700 tons (about 2 kg of the barrel in the washing machine is about 2 kilograms per barrel. To. Many components of the microwave oven are also made of mineral enhancement and touches PP materials. For example, sealing strips of microwave gates, microwave speakers speaker mouths, speaker brackets, etc. Due to the addition of minerals, it can be further improved on the basis of the high heat resistance temperature of the PP material itself, so as to meet the requirements of the high -wave furnace on high temperature. In recent years, the price of raw materials has soared sharply, and due to cost pressure, many injection molding manufacturers are considering using polystyrene to replace ABS or replaced polystyrene products with modified PP products to reduce costs. Example of replacing polystyrene. For example, after selecting mineral enhancement and tougher PP materials instead of the original polystyrene material injection -plastic refrigerator drawer, raw materials per ton can save 1500 ~ 2,000 yuan. Due to the large dosage, the Haier Group alone will consume 1,000 tons of PP modified materials in a year. In addition, many refrigerators’ refrigerators have also used minerals to enhance toughened PP materials, such as Celon Electric, Meiling Electric and other companies. Although the mechanical properties of PP modified materials are slightly worse than polystyrene, there are problems such as distortions, deformed marks, and poor rigidity. The characteristics of PP materials are good and MFR high. The handover department Profile Extrusion line adds physical enhanced reinforcement, so the design makes the problem of poor product rigidity basically solved, which can save a lot of material costs. PP modification materials used for plastic parts on the rice cooker are mainly divided into high gloss and heat resistance. The rice cooker shell requires a high gloss, and the base requires higher thermal heat resistance. The shell of the rice cooker was previously produced by ABS. Due to cost pressure, the modified PP is mainly used to replace ABS. The shell material of the rice cooker requires high gloss and low shrinkage performance. It can improve the shrinkability through the method of filling mineral filling. The surface gloss can be improved by a nuclear, lubricant, fluorescent agent, etc. The weather -resistant PP is due to the unstable unstable uncle carbon group. After the light, thermal, and oxygen, it is prone to aging degradation and cause discoloration and decline in strength, which limits its application on outdoor products. Therefore, through the weighing resistance of PP, the service life of PP materials can be greatly improved under the harsh climate conditions of outdoor outdoor materials. This modification is mainly used to make household appliances used in open -air all year round, especially for manufacturing air -conditioner outdoor hosts to replace traditional metal spray plastic shells. Air -conditioner roomThe outer shell should be tested by different climate conditions such as sun exposure, rain, and severe cold, and meet long -term use requirements. The use of plastic instead of metal spraying technology was first developed successfully and put into use by Japanese Sumitomo and Mitsubishi Chemical Co., Ltd. in the early 1990s. This technology overcomes the complicated production process and cost of the original metal spray plastic shell. The shortcomings such as high, heavy weight, easy to rust (can affect the performance of the whole machine and the service life), and finally reduce the labor intensity of workers, reduce energy consumption, and extend the service life. In addition to the air -conditioner outdoor unit case, the air -conditioning outdoor -engine shaft flow blades and thermal air outlets also use weather -resistant PP. In recent years, with the increase in the output of air -conditioners, the application of modified PP has gradually increased in the product market. In order to avoid fires, many countries now require the materials used in electronics and electrical components in household electrical products to be flame retardant. In the flame retardant PP, 63%of the requirements meet the UL94V-0 level, 23%requires the UL94V-2 level, 12%is DIN4102B1, and 1%is other flame retardant levels. The high crystals and flammables of PP make it difficult to achieve high flame retardant levels required by electrical and other industries, and the cost increases. Increased, the current annual growth rate of flame retardant PP is 8%. Because PP is a flammable material, the BR/SB composite flame retardant is generally used in the market to modify it. Through flame retardability, PP products can reach UL94V-0 level, and can resist 650 ° C or even 750 ° C without burning. This flame -retardant PP material is generally used to make potential combustion dangerous components such as TV shells, washing machine control discs, wire controller shells, refrigerators evaporate dishes, and ventilation channels. Glass fiber enhanced modification PP is generally, the stretching strength of PP materials is between 20m ~ 30MPa, the curved strength is between 25m and 50MPa, and the amount of curved mold is between 800m and 1500MPa. If you want to use PP on the engineering component, you must use glass fiber to enhance. Generally speaking, the mechanical properties of PP products enhanced by glass fiber can be doubled or even several times. Specifically, the stretching strength has reached 65MPa ~ 90MPa, the curved strength reaches 70MPa ~ 120MPa, and the curvature modulus reaches 3000MPa ~ 4500MPa. Such mechanical strength can be comparable to ABS and enhanced ABS products, and it is more heat -resistant. Generally, the heat -resistant temperature of ABS and ABS is between 80 ° C and 98 ° C, while the heat -resistant temperature of the PP material enhanced by glass fiber can reach 135 ° C ~ 145 ° C. It can be used to make axis flows and flowers in refrigeration machines such as refrigerators and air conditioners. The cost is much lower than that of ABS. In addition, it can also be used to make the inner barrels, wave wheels, and belt wheels that manufacture high -speed washing machines to meet their high requirements for mechanical properties.The base of the rice cooker and the handle, the electronic microwave ovens, etc. have higher temperature -resistant places. Modified PP development trends and prospects have very good application prospects in the home appliance industry. On the one hand, China has become the world’s household appliance production center, and has a group of influential manufacturers, which can actively choose materials; on the other hand, industry competition has also prompted enterprises to apply more reasonable materials. From the perspective of the development of home appliance technology in the future, the humanization of household appliances will be more prominent, product variety is more complete, and traditional home appliances will develop towards miniaturization and large -scale poles. The continuous emergence of new products has also put forward higher requirements for PP modification. The modified PP will have 4 main development trends: 1. High rigidity, high gloss PP. This product may replace PS and ABS in certain home appliances, especially small appliances. 2. Halogless flame retardant PP. The implementation of the EU ROHS Act, the emphasis on environmental protection of various countries, the urgency of the research and development of halogen -free flame -retardant PP, and the market prospects. 3. Glass fiber enhance PP. Ordinary short glass fiber enhances PP. Due to the short glass fiber, it is easy to warp, the impact strength is low, and it is easy to deform when heated. Using temperature and high impact strength, it can be applied to refrigerators and kitchen appliances with high heat resistance. 4. Antibacterial PP. This plastic is a new type of functional polymer material that has a bactericidal and bacteriostatic performance. It can be used in the inner tendon of the washing machine and plastic parts in the refrigerator. The prospects are wide.