In recent years, China's modified plastics industry has achieved a leap-forward development with the stable and healthy development of the national economy. Economic and technical indicators have steadily increased over the past ten years. However, due to technical factors, China's modified plastic products are still Low-end products, high-end products mainly rely on imports.
At present, the application of modified plastics in home appliances and automobiles in China accounts for more than 50%, so the development of home appliances and the automotive industry will have a greater impact on the market demand for modified plastics, but with the continuous improvement of domestic modified plastic technology With the widening of the scope of application, the impact of the development of home appliances and the automotive industry on the modified plastics industry will gradually decrease.
Prospects for the Development of China's Modified Plastics Industry
1, forecast of industrial output value
According to the data from the National Bureau of Statistics, we also combined the industry development cycle and the downstream industry development cycle. The Forward-looking Industry Research Institute calculated that the total industrial output value of China's modified plastics is expected to reach 2022 in the next six years, and the total industrial output value of the modified plastic industry will exceed 200 billion yuan.
2017-2022 Forecast of Industrial Output of China's Modified Plastics Industry (Unit: 100 million yuan)
2, sales revenue forecast
According to the data from the National Bureau of Statistics, the “Analysis Report on Production and Sales Demand and Investment of the Modified Plastics Industry” promulgated by the Industry Research Institute predicts that the sales revenue of China's modified plastics in the next six years will be as shown in the figure below. It is estimated that by 2022, the modified plastics Industry sales will also exceed 190 billion yuan.
2017-2022 Sales Forecast of China's Modified Plastics Industry (Unit: 100 million yuan)
Analysis of Development Trend of China's Modified Plastics Industry
With the rapid development of the national economy and the further expansion of the market capacity of modified plastic products, and the support of the national government at all levels to the development of the modified plastics industry, the modified plastics industry will gain better opportunities for development. At present, China's modified plastics industry The development shows the following trends:
(1) Step-by-step application of modified plastics
With the improvement of scientific research level, the modification technology has achieved further development. The modified plastic has been continuously improved in flame retardancy, weather resistance, and alloying level. The application field is gradually expanding. For example, hard PVC substitute wood materials can be widely used in construction, packaging, and furniture. In other fields, a series of new high-hardness composite materials developed by Latis.PA of Italy can be recycled and used instead of aluminum alloys.
(2) General Plastics Engineering
General plastics can be modified to improve performance, have engineering characteristics, and can capture some of the traditional engineering plastics market share. Although new types of engineering plastics continue to increase, application areas continue to expand, but the current market price of engineering plastics for ordinary plastic 3 -4 times, the output is also lower than that of general plastics. With the development of the modification equipment, the improvement of the modification technology, general plastics such as PP, ABS, etc. can improve the strength, heat resistance, etc. through modification, making it possess certain engineering The characteristics of plastic, but the price is significantly lower than engineering plastics, so it can seize part of the traditional engineering plastics market share.
(3) High performance of engineering plastics
With the rapid development of the domestic automotive, electrical and electronics, communications and mechanical industries, it is proposed for engineering plastics such as polycarbonate (PC), polyamide (PA), polyester (PBT, PET), polyphenylene oxide (PPO), etc. For higher performance requirements, for example, plastics used as energy-saving lamp bases require high temperature resistance and yellowing resistance; plastics used as chip trays require resistance to flexing and antistatic; plastics used as electronic connectors require high flame retardancy. High heat resistance, high flow; plastics used as mechanical gears require wear resistance, high rigidity, high dimensional stability, etc. Engineering plastics can be modified to improve various mechanical and physical properties to meet the high performance of engineering plastics in downstream industries Claim.
(4) Cost-effectiveness of special engineering plastics
The plastics that can be used for a long time under conditions above 1500 degrees are called special engineering plastics, such as polyphenylene sulfide (PPS), polyimide (PIM), polyether ether ketone (PEEK), polysulfone (PSU), etc. It has good electrical properties, high temperature resistance and dimensional stability (some special engineering plastics also have good flame retardancy, resistance to radioactivity, chemical resistance, and mechanical properties) and are being used more and more widely in electronic appliances and automobiles. The market price of instruments, home appliances, aviation, paint industry, petrochemicals, rocketry, aerospace and other cutting-edge technologies is generally several times that of ordinary engineering plastics. After modification of special engineering plastics, it can maintain its original high performance. Lower prices, can be widely used in civilian products.
(5) Application of Nanotechnology in Modified Plastics Industry
Nanotechnology is a new technology developed in the 1990s. Plastics modified with nanotechnology have many unique properties. For example, nylon modified with 5% organic montmorillonite (PA6) can increase the heat distortion temperature by 1.5 times. The addition of nanoclay to polyester (PET) significantly reduces the gas permeability of the material, which is 100 times less than that of pure PET. The nano plastic has a small amount of inorganic nanoparticles (usually 2%- 5%), which is only about 10% of the addition amount of the conventional inorganic filler, and the composite material density and the original resin density are the same or similar, so the production cost of the downstream plastic processing plant will not be increased due to the excessive increase in density. There are no disadvantages caused by too much filler and other properties are reduced. Due to the small size of nano-particles, the plastics modified by nano-technology have almost no breakage damage during molding and recycling, and have good recyclability.
(6) The stricter environmental protection requirements for modified plastic products
With the increasing awareness of global environmental protection, consumers are increasingly demanding the flame retardance of plastic products. Halogen-free, low-smoke, and low-toxic environmentally friendly flame retardants have been increasingly required to be used. Nearly 80% of the modified flame retardants are halogen-containing flame retardants. The main components of the halogen-containing flame retardants are polybrominated diphenyl ethers and polybrominated biphenyls. 70% to 80% of China's electrical and electronic products for export use such flame retardants. , Bromine-antimony flame retardant system generates a large amount of soot and corrosive gas during thermal cracking and combustion.
In recent years, some countries in the European Union believe that brominated flame retardants will produce toxic carcinogens when burned. In February 2003, the European Union introduced the RoHS and WEEE environmental protection bans. Some multinational companies such as Sony, Apple, Hewlett-Packard have also submitted their own The environmental protection standards, in addition to limiting halogen compounds, also impose restrictions on heavy metals such as lead, cadmium, mercury, and hexavalent chromium.