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Chemical new materials industry ushered in a big outbreak: the future of these 10 new materials have the most potential
New chemical materials industry comes into being with the development needs of downstream industries and the upgrading needs of the industry itself. The overall development trend of the industry is performance improvement, function improvement and rapid improvement of quality. The development of the industry is obviously driven by demand factors.
With the development of downstream industry, the future market of chemical new materials has great potential.
Compared with traditional chemical materials, new chemical materials have some advantages different from traditional chemical materials in terms of chemical characteristics, manufacturing methods, cost and application value.
With the development of China's economy, the market development demand for new chemical materials in energy, manufacturing, medicine and construction will continue to expand.
However, due to the slow start, international technical barriers, unreasonable product structure and other factors, the self-sufficiency rate of China's chemical new materials industry still needs to be improved.
In the "14th five-year" plan, relevant development plans are made for the development of the industry.
New material is the forerunner of the development of material industry and an important strategic emerging industry.
Today, in the 21st century, the rapid development of scientific and technological revolution, new materials industry upgrading, the pace of material renewal.
What are the 10 most potential new materials special membrane in the future?
What about their current R&D and application market?
One, optical film
Optical thin film, it is to point to in optical glass, optical plastics, fiber optic, crystal and other materials on the surface of plating layer or one multilayer film, based on the thin film optical interference effect to change in the intensity of transmission light or reflected light, polarization and phase change optical element, is an important component of modern optical instruments and optical device.
Optical film an optical dielectric material consisting of a thin layered medium that propagates light beams through an interface.
The use of optical films began in the 1930s.
Optical thin films have been widely used in the field of optical and optoelectronic technology to manufacture various optical instruments.
Optical film is processed on the basis of optical base film, the optical base film is mainly polyester chip as the main raw material, because it needs to meet the performance requirements of high transmittance, low haze, high brightness, so optical base film is a field with high technical barriers in polyester film industry.
Brief history of optical film technology: Optical film has a history of nearly 200 years. Of course, the development process of China's optical film industry is closely related to the development of the world's optical film technology.
From the early 19th century to the end of the 20th century, scientists in Germany and the United States made many achievements in the exploration of basic scientific principles of optical film. The world's first anti-reflection film was born, and various important properties of optical film were gradually discovered.
In the early 20th century, the technology and preparation process of optical film preparation equipment and coating products were developed, and the oil diffusion pump of vacuum coating machine for manufacturing optical film appeared. Optical film, as a kind of practical optical element, has been widely used in the optical system.
Especially at the end of the 20th century, with the rapid development of global photoelectric technology, the popularity of notebook computers, mobile phones and LCD TVS, optical film devices to high performance, high technical requirements and a wide range of applications.
Monopoly and leading situation: It is worth mentioning that in terms of optical film production and supply, there is a high degree of monopoly phenomenon in the world. The global market of optical film is mainly composed of:
Japan - Toray, Mitsubishi - resin, Toyang Textile, South Korea - SKC, the United States - 3M and other production supply, especially the Japanese and Korean giants of the optical grade PET film monopoly, thus forming a leading position in the global optical functional film market.
Two, flexible PI membrane
Polyimide (PI) film is a kind of film insulation material which is formed by polycondensation and casting of phthalic anhydride and diamine diphenyl ether in strong polar solvent.
PI membrane has become the best flexible substrate material due to its excellent high temperature resistance, mechanical properties and chemical stability.
PI film for yellow transparent, relative density between 1.39 ~ 1.45, it has excellent high and low temperature resistance, electrical insulation, caking property, radiation resistance, medium resistance and so on, to - 269 ℃ ~ 280 ℃ temperature range use for a long time, is widely used in aviation, aerospace, mechanical, electrical, atomic energy, microelectronics, such as liquid crystal display (LCD) technology,
And has become a global rocket, aerospace and other cutting-edge science and technology one of the indispensable materials.
Flexible substrate material for folding mobile phones, the traditional glass material is hard and fragile, and the flexible substrate material to replace the traditional rigid glass substrate is one of the key elements to achieve product flexibility, PI membrane with its excellent high temperature resistance, mechanical properties and chemical stability has become the best flexible substrate material.
For example, "made in China 2025" proposed that by 2020, the flexible display should reach 300PPI resolution small and medium size flexible AMOLED display, flexible diameter <.
1 cm;
By 2025, 100-inch, coilable 8K4K flexible display, small and medium size foldable display.
PI is one of the organic polymer materials with high temperature resistance up to 400 degrees Celsius or more. The long-term use temperature is between 200~300 degrees Celsius, without obvious melting point, with high insulation performance, excellent performance in diaphragm materials.
It has excellent high and low temperature resistance, electrical insulation, bonding, radiation resistance and other special properties, so it can replace the traditional ITO glass, and a large number of applications in the foldable mobile phone substrate, cover plate and touch material.
In flexible OLED, yellow PI is mainly used in substrate materials and auxiliary materials, while CPI(transparent PI) is mainly used in cover plate materials and touch materials.
Monopoly and leading situation: THE PI industry chain includes the upstream PI resin and base film production, as well as precision coating and processing procedures, in which the resin and base film production is the world's highest barrier link, it is worth mentioning that the world's leading companies are: Japan ube, Korea Cologne and other global giants.
There are about 50 PI film manufacturers in China, and PI is expected to become the "upstart" of new materials, especially with the explosion of flexible phones and other consumer electronics applications.
Three, polarizer PVA film
It is one of the upstream key materials in the electronic display industry. Its essence is a composite film, mainly composed of PVA film, TAC film, pressure sensitive adhesive, release film and protective film.
Among them, PVA film is the core material of polarizing plate, which determines the polarizing performance, transmittance, tone and other key optical indexes of the polarizing plate.
The composition of polyvinyl alcohol (PVA) film is mainly light atoms such as hydrogen and oxygen. It has the characteristics of high transparency and ductility, good iodine adsorption and film formation, etc. It is the core raw material of polarizer.
PVA films can be polarized because they can adsorb dualistic molecules, such as the most widely used iodine-based PVA films:
In front of the untreated PVA molecular chain and disorderly distribution of PVA membrane on the adsorption of iodine molecules also desultorily, when PVA membrane extensions orientation of the iodine molecules also orderly distribution, adsorption of iodine two match to absorb molecules to extension, make the function of PVA membrane with polarized light, and the polarization performance of the polaroid, optical transmittance, tonal, the index.
The Three-year Action Plan for Enhancing the Core Competitiveness of manufacturing Industry (2018-2020) issued by the National Development and Reform Commission has put forward clear development goals for polarizer and supporting film materials, mainly including polarizer for TFT-LCD and supporting cellulose acetate (TAC) film, polyvinyl alcohol (PVA) film, etc.
The document points out that the degree of polarization can be customized from 95 to 100% according to user needs, and the comprehensive performance can reach the high generation (more than 6 generations)TFT LCD supporting requirements;
The transmittance of optical polyester base film for polarizer is greater than 88% and less than 1%, and the comprehensive performance meets the matching requirements of polarizer;
The scale of a single set of devices can reach 10 million square meters per year.
In particular, the domestic polaroid market is expected to reach 5.3 billion US dollars in 2020, accounting for about 40% of the global market share.
Monopoly and leading situation: China's PVA membrane market is mainly monopolized by Japan cola li, Cola Li itself is one of the main suppliers of high-end PVA resin raw materials.
Colelli's monopoly in the field of PVA optical film is due to its integrated production system, which can realize the production of high-end PVA resin, PVA film for polarizing plate, and then the integrated production of PVA film surface treatment.
According to corolli data, corolli PVA resin supply as early as 2018 accounted for about 40% of the global supply, especially the PVA film supply for polarizing plates accounted for 80% of the global supply.
Major foreign companies: Kuraray, LG Chem, Samsung SDI, Nitto, Sumitomo Chem, etc.
Domestic companies: Wanwei High-tech, Sanli spectrum, Dongxu optoelectronics, Shengbo optoelectronics, Sheng Bao Lai.
High performance water vapor barrier film
High performance water vapor barrier film is the leading core material for research and development and layout of major material companies all over the world in recent years. Without high grade water vapor barrier film products, it will be difficult to start the downstream flexible industries such as flexible display, flexible electronics, flexible lighting, flexible photovoltaic, flexible sensing.
In the coming era of the Internet of things, the sensor will be ubiquitous, water vapor barrier membrane will lead toward flexible, lightweight and wearable sensor, based on the flexible printing electronic flexible sensing application prospect, including the infrared sensor, the robot sensor, smart sensor dressing, such as biomedical sensor, printed electronics once broke out,
The need for water vapor barrier films is also huge.
Monopoly and leading situation: there are only two companies in the world that can produce high-end water vapor barrier film for display, one is 3M in the United States, and the other is a rising star, Condexin in China.
It is worth to note that the world's first winding large-width high-performance packaging barrier film production line independently developed by Condexin has been successfully put into production, and the water vapor barrier WVTR value can reach 10-6 g/m2 / day, which is the packaging barrier film with the highest performance grade in the global industry.
In fact, before kangdexin successfully achieved mass production, only a few high-grade water vapor barrier film manufacturers in the United States and Japan can supply, but the product structure is complex, yield and production capacity is low, the price is very expensive, which has become the main bottleneck restricting the development of the domestic flexible market.
The successful production of kangdexin high performance water vapor barrier film has completely solved the bottleneck of core materials faced by the development of domestic flexible industry, and will drive the comprehensive rise of China's flexible industry.
Five, heterotropic conductive film
Heterotropic conductive adhesive is a kind of coating and bonding between substrate A and substrate B, which restricts the current to flow between substrate A and B only in the direction of vertical axis Z. It has the functions of unidirectional conduction and bonding fixation, and can solve some problems of fine wire connection that connectors can not deal with in the past.
Nowadays, electronic products in the world are developing towards portable and miniaturized, which undoubtedly puts forward higher requirements for circuit assembly technology, especially the traditional soldering packaging materials and technologies have been unable to meet the development needs of the industry.
The appearance of heteroplanar conductive film has completely broken the limitations of traditional packaging materials and technology and completely met the requirements of modern large-scale integrated circuit microelectronics packaging.
Monopoly and leading situation: ACF is a high-tech functional material, and more than 85% of the global ACF market share is occupied by Japan.
Due to the high technical difficulty of ACF industrialization, various countries have been strictly blocking related technologies. It is worth paying attention to that, China Suzhou Microbang Material Technology Co., Ltd. has developed conductive adhesive film suitable for mobile phones and other electronic products, and has obtained national patent technology.
From the perspective of the global ACF market, the ACF products developed and produced by Suzhou Microstate have formed a competitive trend with foreign ACF brands such as Japan's SONY and Hitachi, and are widely used in the production of video recorders, laptops, mobile terminals or personal digital processors and other electronic equipment.
6. Special optics
The so-called optical PET film is a layer or multilayer film plated on the surface of optical parts in order to change the optical characteristics of the surface of optical parts.
Optical PET film is divided into reflective film, anti-reflection film, filter film, optical protective film, polarization film, splitter film and phase film.
The first four are commonly used.
China is becoming the world's largest producer of flat panel display equipment, and the explosive growth of the domestic touch screen industry has prompted the rapid increase in the demand for optical film, optical film has become one of the most important strategic raw materials in the front end of the photoelectric industry chain.
Seven, high thermal conductivity graphite film
Graphite film is a kind of graphite film, because carbon is a non-metallic element, but has the conductive and thermal properties of metal materials, but also has the plasticity of organic plastic,
And there are special thermal properties, chemical stability, lubrication and can be coated on the solid surface and so on some good process performance, therefore, thermal graphite in electronics, communications, lighting, aviation and defense and many other fields have been widely used.
Graphite film is mainly used for internal shock absorbers and heat dissipation of electronic products.
Overseas giants of graphite film:
Japan panasonic
Matsushita Components Co., Ltd. is a subsidiary of Matsushita Group of Japan. Since 1998, the company has developed and produced PGS graphite film by Matsushita Components Plant in Chitella, Hokkaido. As early as 2012, the company developed a graphite film product with a thickness of only 10μm.
Graftech
Founded in 1886, it is the world's largest producer of graphite electrodes and the world's largest supplier of graphite products.
It was listed on the New York Stock Exchange in 1996.
Viii. Proton Exchange Membrane (PEM)
It is the core component of Proton Exchange Membrane Fuel Cell (PEMFC) and plays a key role in battery performance.
It not only acts as a barrier, but also acts as a proton conduction.
The whole proton exchange membrane mainly uses the fluorine sulfonic acid type proton exchange membrane;
Nafion recast film;
Non-fluoropolymer proton exchange membrane;
New composite proton exchange membrane, etc.
Nine, aluminum plastic film
Many indicators are required for aluminum plastic film, among which the most important indicators are different from ordinary composite film: 1) high barrier;
2) Good cold stamping formability;
3) Puncture resistance;
4) stability of electrolyte resistance;
5) Electrical properties (including insulation).
Monopoly and leading situation: due to the high difficulty of aluminum-plastic film production process, most of the domestic aluminum-plastic film in the corrosion resistance of electrolyte, deep drawing performance and other aspects do not pass, therefore, the global and domestic aluminum-plastic film market is mainly Japan DNP printing, Japan Showa Denko and a few Japanese enterprises monopoly.
For example, in the global alumino-plastic film market in 2017, Japan's DNP market share of 45%, showa Denko market share of 29%, the two together reached 74%, the global market dominance is very clear.
Gateway power cell development room manager Dr. Ma once said that domestic aluminum plastic film in terms of reliability and imported products are still a big gap, and the cost is not very low.
Industry insiders agree that, from 3C to power, the domestic replacement trend of aluminum-plastic film will be similar to diaphragm.
In general, China's electrodialysis membrane varieties are less, temperature resistance, oxidation resistance, acid and alkali resistance and pollution resistance are poor, it is difficult to carry out high concentration and different ion separation.
Source: High function film
