New plastic building materials enter mature growth period

In recent years, the country’s increased investment in infrastructure has also greatly promoted the development of plastic building materials. As plastic building materials will become new consumer hotspots and economic growth points, the varieties of plastic building products will gradually be serialized, matched and standardized, and the requirements for environmental protection and energy conservation and promotion and application will be increased. Various plastic pipes, doors and windows, and polymers The demand for waterproof materials, decoration materials, insulation materials and other architectural plastic products will increase significantly.

China's plastic building materials industry has become the second largest pillar industry in the plastics industry, second only to packaging, at an average annual growth rate of more than 15%. In recent years, China's plastic building materials industry has accelerated the pace of research, development and application. The scale of production in the industry has continuously expanded, and the level of technology has steadily increased. In particular, plastic profiles and pipes have entered a period of stable and mature growth, and have become the best varieties of plastic building materials. . More than 30% of China's regions have applied new plastic pipe materials, and some provinces and cities with rapid development have reached 90%. In some cities in the three northeastern provinces, Inner Mongolia and other places, more than 40% of newly-built houses use plastic doors and windows, and over 80% of new houses in Qingdao and Dalian use plastic windows.

Plastic sheet: a wide range of applications Excellent performance Plastic sheets are made of plastic as raw materials. They are widely used in construction and chemical industries. They are used in chemical, environmental protection and construction boards for wear resistance, vibration resistance, and corrosion resistance. Recycling, strength, anti-aging, waterproof, moisture-proof, not easily deformed, repeated use and so on. Moreover, the hard plastic pallets currently being replaced can also be recycled and processed, which will greatly reduce costs.

The most outstanding feature is the ultra-high molecular weight polyethylene, which is an engineering plastic with excellent performance, such as high wear resistance, impact resistance, low coefficient of friction, good self-lubricating performance, and excellent low temperature resistance. , chemical resistance and so on. As a high-performance thermoplastic engineering plastic, UHMWPE is mainly used in textile, paper, food and other industrial sectors in the early stages of development. With the continuous advancement of technology, various processing methods can be used to produce a variety of products. Therefore, the application field is constantly expanding. At present, in addition to the above-mentioned applications, the cutting-edge technology fields such as mining machinery, construction machinery, transportation machinery, material lining, and atomic energy have all gained important applications. Abroad, ultra-high molecular weight polyethylene has been widely used in various fields.

Plastic Pipes: Prosperous Development in the Crisis In recent years, plastic pipe has played an increasingly important role in the construction of urban water supply and drainage pipe networks. Compared with the traditional cast iron pipes, the plastic pipes have light weight and long service life. In general, the service life of plastic pipes is more than 50 years, basically reaching the same service life as the building. In some special fields, the application of plastic pipes is very large. For example, the most eye-catching radiant heating industry in the world currently uses PE-Xa or PE-RT pipes as heating pipes to heat the entire room through floor radiation, which is comfortable and safe, and environmentally friendly. Energy-saving and other advantages have gradually become the first choice for winter heating in northern regions.

At the same time, the application of plastic pipes has been further broadened. In addition to municipal and construction supply and drainage pipelines, agricultural (water supply, irrigation and drainage) pipelines continue to grow, rural drinking water reform, solar water pipelines, municipal sewage, ground source heat pump pipelines, communications The proportion of applications in the power, gas, heating, medical, and other industries has increased significantly.

During the “Eleventh Five-Year Plan” period, the annual demand for plastic pipes for construction in China is about 5 billion meters. By 2010, China's plastic pipe production will reach 4.5 million tons, and by 2015 it will reach 6 million tons. At that time, China will become the world's largest producer of plastic pipes.

Such a rapid development trend and various fields and requirements of the use of the environment, making plastic pipe in the development of new varieties, new structures, new materials, new technologies, new processes and patent projects more and more.

In addition to PE, PE-X, PB, composite pipe, corrugated pipe and other varieties have made great progress, high temperature polyethylene pipe (PE-RT), plastic composite pipe (such as HLDPE, silent drain, etc.), plastic metal composite pipe And various materials and composite materials such as bellows, annular ribs, and coiled pipes have also developed rapidly.

Plastic profiles: Towards functional, high-profile development of plastic profiles is mainly used to make plastic steel doors and windows, is the fourth generation of new energy-saving products following wood, steel, aluminum. At present, the annual production capacity of plastic profiles in China's doors and windows industry is close to 4 million tons, and the actual production and sales volume is also close to 2 million tons per year. Hormone anti-war plastic profiles and doors and windows industry have greatly promoted the application of chemical building materials in China, saving energy and resources for China, and making great contributions to China's economic construction. At the same time, it has played a huge role in improving and improving the living environment of our people. However, various contradictions and imbalances that have emerged during the rapid development process have also become an important factor that restricts the healthy development of the industry. In the past two years, due to the influence of internal and external environment, the phenomenon of price inversion in the industry has hit the industry and has not been restored.

According to the ambient temperature in different regions, the requirements for plastic profiles are not the same. In severe cold and cold regions, impact modifiers should be appropriately increased or new impact modifier ACR should be used instead of the original impact modifier CPE to improve the impact resistance of plastic profiles. In areas with high heat and UV radiation intensity, the dose of titanium dioxide and UV absorbers should be appropriately increased to improve the anti-aging properties of plastic profiles. In high-rise buildings in the coastal areas, A, B type wall thickness (2.8mm or 2.5mm), profile with large cavity should be used to improve the wind and pressure resistance of plastic doors and windows.

In summary, plastic profile, plastic pipe, plastic sheet and other products have formed a huge industrial chain of chemical building materials in China. Only the plastic profile has an annual production capacity of 2.8 million tons, and has entered the ranks of large plastic countries.

Today, China's plastic building materials have stepped into the ranks of the world's leading advanced plastics countries. Despite the global financial crisis, the development of plastic building materials is still developing at a rapid rate.