With the continuous development of synthetic technology, polypropylene (PP) resins have been widely used in various fields with their excellent performance, and demand has increased rapidly. The market prospects are promising. In 2003, the output of PP resin in China reached 4.268 million tons, ranking the top five general plastics, accounting for 26.78% of the total output.
According to relevant data, PP's production capacity and demand account for a considerable share of the world's five most common plastics. It is estimated that in 2006, the production capacity of the world's five largest general plastics was 19,0266,000 t/, of which PP was 48,782,000 t/a, accounting for 25.64% of the total production capacity. By 2010, the consumption of polyolefins in China will increase from 15 million tons in 2002 to 28 million tons, of which PP is 10.8 million tons, LDPE is 2.8 million tons, LLDPE is 6 million tons, and HDPE is 7.4 million tons. At present, China's PP has a market gap of more than 2 million tons, and consumption will continue to grow at a high rate in the next five years. According to the current market situation, the market for some key PP products needs further development.
Before and after 2002, China's polypropylene general-purpose material market was relatively saturated, while the special-purpose material market had a relatively large gap. More than 70% of imported products were special materials. Although domestic petrochemical companies have noticed that this market has great potential, and are rushing to develop and develop more market-competitive specialty materials, the high-yield, high-quality, high-value-added polypropylene special materials market will continue to be the future of domestic petrochemicals. Enterprises are seeking top priority in the development of competition.
Biaxially oriented polypropylene film
Packaging materials occupy a very important position in plastic products. According to statistics, plastics used in the packaging industry in the world account for about 35% of total plastic consumption. China's packaging plastics have developed rapidly. The output has rapidly increased from 190,000 tons in 1980 to 4.65 million tons in 2003. It is expected to exceed 5.5 million tons in 2005, more than 7 million tons in 2010, and more than 9 million tons in 2015, accounting for approximately More than 13% of the country's total packaging output. From the product point of view, packaging films account for more than 50% of the total amount of packaging plastics. China's biaxially oriented polypropylene (BOPP) film is one of the largest areas of PP resin consumption. In 2003, China had 86 BOPP manufacturing companies (123 production lines), with a total production capacity of approximately 1.4 million t/a, and reached 200 in 2004. Million t/a (138 production lines), the output will exceed 1 million tons. In recent years, domestic enterprises have focused on improving product competitiveness and have introduced a number of advanced BOPP production equipment. The width of the film produced can reach 8.3m and the line speed can reach 400-500m/min. For example, Zhejiang Dadongnan Group introduces Bruckner, Germany 6 Million t/a production line; Guofeng Group invests 200 million yuan to introduce 35,000 t/a production line (currently Asia's first article and world's fourth article 10m wide BOPP equipment); Changzhou Wujin Jinshi Group introduces Germany 20,000 t/a Five-layer co-extruded high-strength and ultra-thin BOPP production line; Fujian Hyundai Group introduced 25,000 t/a production line; Baoshou Group planned to introduce 100,000 t/a production line. According to the conversion of China's existing BOPP film production capacity, the annual demand for PP resin is nearly 2 million tons. Therefore, it is necessary to pay attention to developing special PP materials with high line speed, extensibility, and good transparency for BOPP film, including supporting B. , C copolymer, to adapt to the newly introduced BOPP film equipment.
Automotive Modified Polypropylene
In 2003, China’s auto output was more than 440 million units, ranking fourth in the world and an increase of 36.6% year-on-year. According to U.S. ESM WerWide, “China’s auto production will exceed 6 million vehicles in 2008, and 2015 will surpass Japan and leap to second place in the worldâ€.
The development of the automobile industry is inseparable from the progress of automotive plastics. At present, the self-sufficiency rate of engineering plastics in China is less than 16%.
According to the prediction of China Engineering Plastics Association, the growth rate of demand for engineering plastics in China is 15% in 2005 and 10% in 2010. The demand will increase from 440,000 t in 2000 to 1.4 million t in 2010. The demand for engineering plastics in China's auto manufacturing industry has grown rapidly. By 2010, the total usage will reach 940,000 t (in terms of plastics consumption 5% to 10% of the weight of cars). PP is used in the automotive industry for its strong competitiveness, but because of its low modulus and heat resistance and poor impact strength, it cannot be used directly as an auto part. Modified PP products are used in cars. Heatability can be increased from 80 °C to 145 °C ~ 150 °C, and can withstand high temperature 750 ~ 1000h after aging, no cracking. According to reports, a new generation of polypropylene HEHCPP products with high orientation crystallinity launched by Toyota Motor Corporation of Japan can be used as automobile dashboards and bumpers, and the cost of similar products produced from TPO as raw materials is reduced by 30%. Modified PP is used as a car. Accessories have a very broad development prospects.
Household Appliances Polypropylene
In recent years, China's household appliances industry has developed rapidly, with many varieties and large output. In 2003, China produced 18.5 million refrigerators, 42 million air conditioners, 17 million washing machines, and 35 million microwave ovens. According to the "2004-2006 China Urban Home Theater Market Research Advisory Report," it is estimated that the market size of China's home theater system will reach 6.9 million units in the next three years. In addition, various small household appliances also have a huge potential market, which is an excellent business opportunity for modified PP. At present, some plastic raw material manufacturers in China have developed washing machine special materials such as PP 1947 series, K7726 series, etc., and are welcomed by washing machine manufacturers. Therefore, in the next few years, efforts should be made to develop special materials for household appliances PP in order to adapt to the changing needs of the market.
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