Any breakthrough in high-tech must be based on the breakthrough of new material technology in this field. The new material will play an irreplaceable foundation and support role in the third industrial revolution. In 2015, the total output value of China's new materials industry will reach 2 trillion yuan, with an average annual growth rate of more than 25%. Large multinational companies, with their technological R&D, capital, talents and patents, occupy a dominant position in high-tech and high value-added new materials, which poses great pressure on the development of China's new materials industry. New materials are a basic and pillar strategic industry and the foundation and precursor of modern high-tech and industry. Any breakthrough in high-tech must be based on the breakthrough of new materials technology in this field. Breakthroughs in materials will likely trigger a new industrial revolution. In 2015, the total output value of China's new materials industry will reach 2 trillion yuan, with an average annual growth rate of more than 25%. Wan Gang, vice chairman of the National Committee of the Chinese People's Political Consultative Conference and Minister of Science and Technology, said in an exclusive interview with the reporters of the Economic Information Daily that the new round of industrial transformation is a new economic development paradigm based on the combination of the Internet, new materials and new energy. The material industry is the basic industry of the national economy. The new materials are the forerunners in the development of the material industry. The new materials have been included in one of the seven strategic emerging industries in the country. Gan Yong, deputy dean of the Chinese Academy of Engineering and academician of the Chinese Academy of Engineering, said that at present, China attaches great importance to new materials, and its financial, human and material resources are concentrated. In an interview with reporters, relevant experts said that the new materials are the material basis for the new industrial revolution. China needs to see and grasp the development frontiers of new materials technologies and industries, and build a complete new material industry system. New materials are the material basis of the new scientific and technological revolution Tang Jianmao, director of the consulting department of the China Society for Materials Research, told the Economic Information Daily that the new materials cover a wide range of fields, generally referring to new materials with excellent performance and special functions, or traditional materials. The improved performance and materials that produce new functions mainly include new functional materials, high-performance structural materials and advanced composite materials, and their scopes are constantly changing with economic development, scientific and technological progress, and industrial upgrading. The new materials are not only a high-tech of modernization, but also a modern high-tech industry. Tang Jianmao said that the new material has two aspects: on the one hand, it uses new concepts, new methods and new technologies to synthesize or prepare new materials with high performance or special functions. For example, carbon fiber can be said to be a new concept of new materials, which are prepared by special carbonization process using polyacrylonitrile raw silk; on the other hand, it refers to the re-development of traditional materials, so that the performance can be greatly improved and improved, such as Nano-modification, rare earth modification, etc., Engineering Plastics modification is currently active, varieties are increasing, and performance is continuously improved. Tang Jianmao believes that the new material is the material basis for the new scientific and technological revolution. Its position and role in the third industrial revolution are mainly reflected in the following aspects: First, the new material itself is a high-tech, modern high-tech and industry. Foundation and lead. In the third industrial revolution, a large number of high-tech development and application will occur, and any breakthrough in high-tech must be based on the breakthrough of new material technology in this field. As far as China is concerned, the problems and difficulties in some major projects and projects can be attributed to the fact that material technology has not yet made a breakthrough. The breakthrough of new materials often leads to epoch-making changes in human beings. The breakthrough of high-purity silicon semiconductor material technology in the 1960s made mankind enter the information age. Another example is that high-performance carbon fiber composite materials will usher in a new development period in the next 20 to 30 years, triggering a revolutionary revolution in the aviation industry (including design concepts, logistics supply chain and maintenance service industry). Therefore, the new materials will play an irreplaceable foundation and support role in the third industrial revolution. Second, the deep integration of new materials with modern science and technology is an integral part of modern science and technology and a bottleneck restricting the development of modern science and technology. The third industrial revolution will be characterized by the combination of new energy, information and new materials. In this case, a large number of new materials will be developed and applied. If the performance and quality of new materials cannot be broken, it will directly affect other high-tech industries. Application and industry development. Third, new materials are very important for achieving sustainable development and have a lot to offer. The background of the third industrial revolution is the global urgency of resources and energy issues, with the goal of sustainable development. The role of new materials is very important and has a lot to offer. For example, new energy materials are the basis for the development and utilization of new energy and renewable energy. Environmentally friendly materials will play an important role in conserving resources, protecting the environment, and maintaining ecological balance. Lightweight and high-strength new structural materials will reflect the huge benefits of energy saving. Biomedical materials will improve the quality of human life and health. New green building materials are related to the full use of resources. The development trend of global new materials industry In today's world, the scientific and technological revolution is developing rapidly, new materials and products are changing with each passing day, and industrial upgrading and material replacement are accelerating. Tang Jianmao said that the new material technology and nanotechnology, biotechnology, and information technology are integrated with each other. The integration of structural functions and functional materials is becoming more and more obvious. The environmentally friendly characteristics of materials such as low carbon, green, and renewable recycling have attracted much attention. Developed countries attach great importance to the cultivation and development of new materials industry, with sound technology development and risk investment mechanism. Large multinational companies with high technology content and high value-added new materials products with their technological research and development, capital, talents and patents. It has a dominant position and poses great pressure on the development of China's new materials industry. From a global perspective, the development trend of new materials can be summarized as follows: First, the new materials are deeply integrated with other new technologies to form an interdisciplinary, cross-disciplinary and cross-sectoral development trend. Such as high-purity silicon semiconductor materials, is currently the core material of solar photovoltaic materials and electronic information technology. Digital technology based on semiconductor chip technology has been integrated into various fields and sectors of modern technology, such as biochips, semiconductor lighting, bionics, communications, remote control, digital manufacturing, and energy conservation. Second, the combination of new materials and upstream industries is closer. The new materials have the characteristics of interdisciplinary, field and department, and are more and more closely integrated with the information, energy, medical, transportation, construction and other industries. The new materials industry is spreading horizontally and compensating. The new materials are integrated with the device manufacturing, the upstream and downstream industries are vertically integrated, and the industrial chain is extended to downstream applications. The products are highly functional, functional and multi-functional, and the development and application are more closely linked. For example, semiconductor lighting, from upstream chip materials to midstream development of various products to downstream applications, must form a complete industrial chain to improve efficiency and reduce resource consumption. Another example is the new power battery, which is also a complete industrial chain from upstream positive and negative materials to midstream battery products to downstream applications to meet various requirements. Third, new materials are more focused on sustainable development. The development of green, efficient, low-energy, recyclable new materials and the development of advanced digital manufacturing technologies are the main directions for the development of new materials and are important for achieving sustainable development. The development of new materials in the future will strengthen the focus on coordinated development with resources, energy and environment, focus on resource recycling, develop low-energy, high-efficiency, pollution-free or less-pollution manufacturing technologies, and improve product humanization and environmental protection. Taking green building materials as an example, the future targets of new materials in the field of building materials are: antibacterial, anti-mildew, heat insulation, flame retardant, temperature regulation, humidity control, degaussing, anti-ray, anti-static and so on. Fourth, economic demand has become the main driving force for development. In the current world, who can develop faster in new technologies and products, who can take the initiative in the future of new economic growth. According to statistics, in 2010, the global new material production value was 800 billion US dollars. The related industries driven by new materials mainly include energy, biology, information, transportation and environmental protection. The "12th Five-Year Plan for New Materials Industry" shows that China's new materials market has huge demand: In terms of new energy, during the "Twelfth Five-Year Plan" period, China's wind power installed capacity of more than 60 million kilowatts, built solar power stations more than 10 million kilowatts, nuclear power The installed capacity is 40 million kilowatts. It is estimated that a total of 40,000 tons of rare earth permanent magnet materials, 500,000 tons of high-performance glass fiber, 900,000 tons of high-performance resin materials, 80,000 tons of polysilicon, and 60 million square meters of low-iron suede-rolled glass are required. It requires 70,000 tons/year of nuclear power steel, 1200 tons/year of nuclear grade zirconium, and 2000 tons/year of zirconium and zirconium alloy ingots. In terms of energy-saving new energy vehicles, by 2015, the cumulative production and sales volume of new energy vehicles in China will exceed 500,000 units, requiring energy-type power battery modules of 15 billion watt-hours/year, power-type 3 billion watt-hours/year, and battery separators of 100 million square meters. Meter/year, lithium hexafluorophosphate electrolyte salt 1000 tons/year, cathode material 10,000 tons/year, carbon-based anode material 4000 tons/year. The demand for passenger cars exceeds 12 million, requiring about 170,000 tons of aluminum alloy sheets and 100,000 tons of magnesium alloys per year. In the aspect of high-end equipment manufacturing, during the “Twelfth Five-Year Plan†period, high-end equipment manufacturing industries such as aerospace, rail transit and offshore engineering are expected to require 1.8 million tons of bearing steel per year, 1 million tons of oil-resistant ship alloy steel per year, orbit. The transportation of large-size aluminum alloy profiles is 40,000 tons/year, and the high-precision indexable carbide cutting tool material is 5,000 tons. By 2020, the development of aerospace industry such as large passenger aircraft requires 100,000 tons of high-performance aluminum materials, and the proportion of carbon fiber and composite materials will increase significantly. In the new generation of information technology, it is estimated that by 2015, 8-inch silicon single crystal polishing sheets will be about 8 million pieces/year, 12-inch silicon single crystal polishing sheets will be 4.8 million pieces/year, and flat-panel display glass substrates will be about 100 million square meters/year. T FT mixed liquid crystal material 400 tons / year. In terms of energy conservation and environmental protection, during the “Twelfth Five-Year Plan†period, the annual output of rare earth trichromatic fluorescent lamps will exceed 3 billion, and the rare earth phosphors will need about 10,000 tons/year; the demand for new wall materials will exceed 23 billion square meters per year. The output value will reach 120 billion yuan / year; the demand for thermal and flue gas denitration catalysts and carriers will reach 4 billion yuan / year, the market demand for high temperature resistant, corrosion resistant bag filter and water treatment membrane materials will increase significantly. In the bio-industry, in 2015, it is estimated that 500,000 sets of artificial joints will be needed, vascular stents will be 1.2 million per year, and intraocular lenses will be 1 million per year. The demand for medical polymer materials, bioceramics, medical metals and other materials will be greatly increased. increase. Degradable plastics require 50,000 tons/year of polylactic acid (PL A) and 100,000 tons of starch plastics per year. China's new material industry development status "China has become a material country. Ten kinds of non-ferrous metal production for the eighth consecutive year in the world, the production of polymer materials has been in the forefront of the world for many years." Tang Jianmao said that after decades of struggle, China's new materials industry from Nothing is there, it has continued to grow and develop, and has made remarkable achievements in system construction, industrial scale, technological progress, etc., and has made significant contributions to the national economy and national defense construction, and has a good development foundation. This is mainly reflected in the following aspects: First, the new material industry system has taken initial shape. The research and development and application of new materials in China originated in the field of national defense science and technology industry. After years of development, the application of new materials in various fields of the national economy has been continuously expanded, and an industrial system including R&D, design, production and application, and a relatively complete variety of products has been formed. Second, the scale of the new materials industry continues to grow, with an average annual growth rate of 10%. Key materials such as electronic information materials reach 20%-30%, and biomedical materials reach 20%. In 2010, the scale of China's new materials industry exceeded 650 billion yuan, an average annual increase of about 20% compared with 2005. Among them, rare earth functional materials, advanced energy storage materials, photovoltaic materials, silicones, superhard materials, special stainless steel, glass fiber and composite materials are among the highest in the world. The development of industrial clusters has obvious regional characteristics, forming three new material industry clusters in the Yangtze River Delta, the Pearl River Delta and the Bohai Rim. The number of new materials enterprises in the country exceeds 12,000. Third, some key technologies have made major breakthroughs. China's self-developed production technologies of niobium alloy, amorphous alloy, high magnetic induction oriented silicon steel, diphenylmethane diisocyanate (MDI), superhard materials, meta-aramid and superconducting materials have reached or are close to the international level. . The variety of new materials is increasing, the guarantee capacity of high-end metal structural materials, new inorganic non-metallic materials and high-performance composite materials is obviously enhanced, and the self-sufficiency level of advanced polymer materials and special metal functional materials is gradually improved. Tang Jianmao also said that although the development of new materials in China has made great achievements, the overall development level still has a big gap with the developed countries. The new materials industry has not yet achieved a resource-intensive and technology-intensive leap, and the industrial development faces some urgent problems. The main problems are as follows: First, the ability to develop new materials is weak. Insufficient key new material support capabilities, many key products are also dependent on imports, subject to foreign constraints, such as high-speed rail wheel materials, third-generation lithium battery cathode materials, semiconductor upstream materials. The products are more imitation, the technology is backward, and the core technology is subject to people. Second, the lack of scientific planning, overall planning and policy guidance in industrial development, the industrial structure is not very reasonable, the industry scale is small, more dispersed, and the same level is repeated, forming competition among domestic counterparts. Third, the innovation of large-scale materials enterprises is not strong, the investment in research and development is small, and the key new materials are insufficient. The production, study and research are disconnected from each other, the industrial chain is not perfect, the promotion and application of new materials are difficult, and the investment in research and development of new materials industry is small and scattered. Fourth, the new materials industry is still in the stage of extensive investment with high input, high consumption and low efficiency. The high output value of new materials is exchanged for high energy consumption. The energy consumption per 10,000 yuan of GDP is three times that of the world average, which is 7.2 times that of Japan. The resource utilization rate is not high. For example, the utilization rate of non-ferrous metal mineral resources is 60%, which is 10%-20% lower than that of developed countries. In 2015, the total output value of new materials in China will reach 2 trillion yuan. “The United States has raised new materials to the second most important strategic position.†Huang Boyun, academician of the Chinese Academy of Engineering and vice chairman of the China Association for Science and Technology, told the Economic Information Daily that China’s new materials Development also faces great opportunities for development. The "12th Five-Year Plan for New Materials Industry" proposes that the development goal of China's new material industry during the "Twelfth Five-Year Plan" period is to initially form a new material industry with a sound policy system, strong innovation capability and large-scale development by 2015. The system has mastered a number of key materials and technologies with independent intellectual property rights in various key areas. Specifically, in terms of industrial scale, the total output value of new materials industry in 2015 will reach 2 trillion yuan, with an average annual growth rate of more than 25%; R&D investment will increase significantly, and R&D investment of key new materials enterprises will account for 5% of sales revenue. A number of new materials engineering technology research and development and public service platforms have been built. In terms of industrial structure, we will build 10 comprehensive leading enterprises with strong innovation ability, core competitiveness and new material sales revenue of over 15 billion yuan, and cultivate 20 professional backbone enterprises with new material sales income exceeding 5 billion yuan. A new material industry base and industrial cluster with outstanding main business, complete industrial support and annual output value of more than 30 billion yuan. In terms of support capacity, the comprehensive support capacity of new materials products has increased to 70%, and the key new material support capacity has reached 50%. Carbon fiber, titanium alloy, corrosion resistant steel, advanced energy storage materials, semiconductor materials, membrane materials, butyl rubber, Key varieties such as polycarbonate are industrialized and scaled. Tang Jianmao said that the "Decision of the State Council on Accelerating the Cultivation and Development of Strategic Emerging Industries" will lead to a new development period for new materials. In 2020, the new materials industry will become one of the leading industries of the national economy. The technical orientation is to develop key materials and technologies with independent intellectual property rights, improve the ability of independent innovation, and form a scientific and technological innovation system and industrial scale for the development of new materials industry in China. Market Positioning: Mainly meet the major needs of the national economy and national defense construction. Aiming at the international high-tech high-end market, it has high technology content, high added value and high cost performance. Countermeasures for the development of new materials Tang Jianmao said that for the development of new materials during the "Twelfth Five-Year Plan" period, the state will increase support for financial support, tax incentives, credit and financing, foreign cooperation, and personnel training, and strategic emerging industries. Relevant materials will receive key support, such as new energy materials, semiconductor lighting materials, new display materials, high-performance battery materials, rare earth functional materials, high-performance fibers and their composite materials. Research on leading-edge basic materials will be strengthened, such as superconducting materials, nanomaterials and devices, functional and smart materials, new microelectronics and optoelectronic materials. New materials and key industries will continue to develop, including petrochemical, steel, nonferrous metals, light industry, and building materials. Specifically, first, it is necessary to accelerate the adjustment of industrial structure and promote the transformation of new materials from resource type to intensive type. Improve the policy system for industrial development, accelerate the integration of resources, optimize the industrial layout, focus on cultivating and developing a number of key enterprises in the new materials industry according to the advantageous resources and industrial bases of various regions; promote industrial agglomeration and resources by supporting strong alliances, mergers and acquisitions Integrate and cultivate a group of large-scale new material enterprise groups with international competitiveness, and build an industrial model for coordinated development of production, education and research. Second, strengthen technological innovation and technological transformation of enterprises. Encourage the support of upstream and downstream enterprises and research institutes to establish various models of innovation alliances, involving enterprises, research institutions and universities to strengthen the practicality, advancement and integration of technology development, and safeguard their respective interests through the agreement of intellectual property rights. Cultivate a number of industrial bases and parks with typical demonstration effects, build an integrated innovation platform for production, education and research, and accelerate the pace of technology research and development, results promotion and industrialization. Encourage foreign research institutions and companies to participate in the alliance of industry, academia and research, and carry out cooperative research, talent training and technical exchange on the basis of mutual benefit and property rights protection agreements. Third, improve and improve the national standards system for new materials. According to the characteristics and development trend of new material products in China, the national standard system for new material products is improved and improved. Actively participate in the development of international standards for new materials. Fourth, establish and improve an efficient investment and financing system. Establish a risk investment support policy that is conducive to the development of new materials industry, actively guide the connection of venture capital and growth-oriented new materials enterprises, and improve the market exit mechanism. We will increase financial, financial, taxation, land and other aspects of support for new materials industries, and set up special funds for the development of new materials industries to ensure continuous and stable support for the new materials industry. Fifth, create a mechanism and environment for using new materials developed by China. Encourage the use of new materials independently developed by China and increase support. For strategic and important new materials, such as carbon fiber, special engineering application research centers can be established to carry out high-end application research and improve and improve in applications. Sixth, strive for and create a good international environment to ensure the healthy development of domestic enterprises. We attach great importance to the use of anti-patent and anti-dumping measures to create a fair market environment for the development of new materials in China and protect the healthy development of China's new materials industry. Strictly control the export of scarce resources and resource-based primary products, strengthen the comparative advantages of new materials with resource advantages in China, build a good supply system, and jointly cultivate the market environment for the development of domestic materials industry. Seventh, implement a professional talent training strategy. Intensify the training of innovative talents in the field of new materials, establish incentives and competition mechanisms suitable for the development of innovative talents, absorb high-level foreign technology and management talents, and provide guarantees for the construction of science and technology innovation systems in China's new materials industry.
Specification
Apparent density: 2.10~2.30g/cm3
Tensile strength: 15.0Mpa
Ultimate elongation: 150%
PTFE is principally used as a gasket material because of it's capability to remain unaffected by the majority of chemicals used in industry. It is also classified, in most cases, as a food grade material, making it acceptable to both medical and food production industries. There are three basic types of PTFE Gasket materials. Virgin PTFE , filled PTFE and expanded PTFE .Features
Acid and alkali resistant
Chemical resistant
Has minimum friction coefficient of all know pure material
Non-viscous, no aging
Now molds can be made according to customers requirements.
Virgin PTFE is by far the least expensive of the three varieties, and is used in most general applications. Filled PTFE is a gasket material with a virgin PTFE base to which a substance is added during manufacture to improve the sealing characteristics of PTFE . This "filler" usually is glass or graphite particles although ceramics has sometimes been used. The resulting gasket material is strong, yet highly compressible with very good, though not universal, chemical resistance.
Expanded PTFE is virgin PTFE to which a stress resistance has been added by means of molecular rearrangement during manufacture. This process ensures that the molecular chains from which the PTFE is constructed, do not arrange themselves into set patterns. This means that expanded PTFE possesses no structural weakness (grain) and expands and contracts equally in all directions. Because no additives are required, expanded PTFE also possesses the unique chemical resistance of virgin PTFE.
PTFE Gasket
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