Carbon fiber is growing steadily, and Chinese domestic products are gradually replacing imports
Among the products exhibited this year, the application range of carbon fiber composite materials is wider than in previous years. In addition to the applications in wind turbine blades, pressure vessels, sports and leisure, carbon fiber has developed more aerospace, automotive parts, building reinforcement, and marine industries. In the application.
According to relevant exhibitors, in recent years, China's carbon fiber demand growth has basically stabilized at about 20%. At the same time, with the continuous improvement of the quality of domestic carbon fiber products, its market share has increased significantly faster than imported carbon fiber. In addition, thermoplastic carbon fiber is gradually becoming a mainstream product.
In terms of high-end carbon fiber products, Chinese companies are catching up. Among them, the most representative is SYT65 carbon fiber brought by ZFSY Carbon Fiber Technology Group. SYT65 carbon fiber products have been researched since 2015. Based on the existing dry jet wet spinning SYT55 (T800 grade) carbon fiber technology, the focus is on fiber defect control, improved steam drafting and draftability, and solved the 100-ton production line amplification process In the series of technical problems, the mechanical properties of carbon fiber have been further improved, with a tensile strength of 6400 MPa and a tensile modulus of 294 GPa, which can meet the needs of aerospace and other fields. The launch of this product marks the advancement of ZFSY products. At this exhibition, the product won the 2020 CCE-JEC Innovation Product Award in one fell swoop.
In terms of production capacity, China's carbon fiber production capacity currently accounts for 17% of the world's third place, which is very close to Japan, which accounts for 19%. With the steady growth of China's carbon fiber market demand, China's domestic production capacity has maintained a good growth momentum. According to reports, at the end of this year, the ZFSY Xining high-end carbon fiber composite material project will be put into operation one after another. The project is a high-performance carbon fiber and supporting raw silk project with an annual output of 20,000 tons. The planned total investment is 5 billion yuan, and it will be completed in two phases. The first phase is planned to build 10,000 tons of high-performance carbon fiber production capacity, which will be carried out in two phases; the second phase is planned to build 10,000 tons of high-performance carbon fiber production capacity; focus on the development of high-performance carbon fiber, of which raw materials are produced from Qinghai Damei Coal in Ganhe Industrial Park The downstream acrylonitrile project; at the same time, about 340 acres of land are reserved for the expansion and development of high-performance carbon fiber. The first phase of the plan will be constructed in two phases. The first phase will form a scale of 6,000 tons of high-performance carbon fiber from 2019 to 2020; the second phase will form a scale of 4,000 tons of high-performance carbon fiber from 2020 to 2022.
ZFSY has a stable supply of raw materials and also has advantages in power costs. This project will not only create a world-class carbon fiber production base with international competitiveness for ZFSY, but also bring huge benefits to the competition of domestic carbon fiber in the high-end market.
This year, carbon fiber is used more in the field of "lightweight" automobiles. In the "International Automotive Composite Material Innovation Experience Zone", the organizer showed the public Changan Automobile's integrated rapid prototyping carbon fiber body parts and ZC's heavy truck engine double-cylinder in various forms such as graphic panels, dynamic videos and on-site explanations. Cover, high-horsepower engine oil pan and glass fiber leaf spring, JSHR's carbon fiber car left side panel assembly, carbon fiber high-pressure hydrogen storage tank, carbon fiber leaf spring, front lip and spoiler, Langfang Feize’s NIO ES6 carbon fiber The rear floor assembly, the continuous fiber reinforced thermoplastic composite power battery box of the ZGLX Carbon Fiber Engineering Technology Research Center, the NBCL carbon fiber composite new energy vehicle body in white, and the HZLK thermoplastic brake pedal are nearly 20 domestic and foreign automotive composite innovative products.
The "integrated integrated design and rapid prototyping of carbon fiber body parts" brought by CQCA realizes the positive design and integrated application of three typical rapid prototyping processes of rapid prepreg molding, high pressure RTM, and thermoplastic prepreg molding on the same vehicle model for the first time . Giving full play to the advantages of the integrated design of composite materials, the vehicle onboard can achieve the ultimate lightweight while meeting the five-star collision of the new version of C-NCAP. Successfully built the first domestic "carbon-aluminum-steel-magnesium" multi-material hybrid structure body with independent intellectual property rights and potential for batch application.
The "NIO ES6 carbon fiber rear floor assembly" brought by LFFZ Composites Technology Co., Ltd. introduced composite material structure in the development stage of the model. The process feasibility and cost of mass production were considered in the whole process, and the technology and management cost reduction were continued. , Has a considerable cost-effective advantage; the entire process adopts automated production, and the production efficiency reaches 1.5 minutes/piece, which ensures the application of automotive applications, while ensuring the stability and consistency of the product; comprehensive structure, paving, formula, mold, tooling , Process optimization program, the system solves the quality problems of wet molding, mechanical processing, homogeneous and heterogeneous bonding in the continuous mass production process; establish systematic process quality standards and testing methods, absorb and integrate the automotive industry and aviation The composite quality control method, relying on the quality traceability system, ensures that the process is controllable and the quality is stable, providing an excellent solution to the weight reduction needs of new energy vehicles.
The new resin carbon fiber composite material developed by ZH International and SH Research Institute of Chemical Industry has been put into application in a variety of new energy racing cars, meeting the comprehensive requirements of cost, efficiency and quality.
Corrosion in the marine environment, high pressure, and strong shear caused by underwater undercurrent flow put strict requirements on the corrosion resistance, strength and fatigue performance of the material. Carbon fiber composite materials have excellent skin resistance and corrosion resistance, and have advantages in the development and expansion of the marine field. Nowadays, carbon fiber composite materials are playing an increasingly important role in the marine field.
Carbon fiber composite materials can be used as production well pipes, sucker rods, storage tanks, subsea oil pipelines, decks and other components in oilfield drilling platforms. At the same time, carbon fiber composite materials are used in marine engineering buildings because of their light weight, high strength, and corrosion resistance, replacing traditional reinforced building materials in the form of ribs and structural parts to solve the problem of seawater erosion of steel bars and high transportation costs on long transportation routes. It has been used in offshore island and reef construction, docks, floating platforms, lighthouse towers, etc. abroad.
The excellent performance of carbon fiber composite materials makes it have broad application prospects in the marine field. Generally speaking, compared with mature applications in aerospace and other fields, the application of carbon fiber in the marine field started relatively late. At the same time, the high cost of carbon fiber is also an important factor restricting its large-scale application. With the reduction of carbon fiber production costs, the development of maritime military and the development of marine resources, the application of carbon fiber in the marine field cannot be ignored.
Toray’s exhibits this year include not only TORAY(TM) carbon fiber yarn and high-end brand bicycles, fishing rods, badminton rackets, table tennis rackets, pressure vessels (SCBA, CHG), carbon fiber composites made of high-performance and high-quality Toray carbon fiber Leads, Toyota Lexus RC-F composite bumpers, etc., as well as products of Toray Advanced Composites (TAC), a member of the Toray Group, and new products such as Toray T720 series carbon yarn and carbon cloth.
As a chemical manufacturer, Arkema has 2 R&D centers and 9 production bases in China. Its business covers high-performance materials, industrial specialty products and coatings. It is a composite material customer for aerospace, automobiles, ships, sports equipment and wind energy. Provide a wealth of products and quality services. Arkema made its debut at CCE this year, bringing its advanced materials and new solutions in the field of composite materials, including Elium® liquid thermoplastic composite resin, Kepstan® PEKK resin, Orgasol® polyamide powder, Luperox® organic peroxide It is committed to meeting the ever-changing 3D printing technology and the growing demand for advanced composite materials in the fields of construction, transportation, wind energy and sports.
Huntsman Group, a specialty chemicals company, showed visitors its four mature polyurethane process systems, as well as innovative solutions in the fields of transportation and logistics. As the highlight product of this exhibition, the polyurethane composite railway solution launched by Huntsman attracted a large number of visitors. Whether it is a fast passenger train or a heavy cargo train, the requirements for railway sleepers are very high. Railway sleepers must be able to withstand large mechanical loads, and at the same time have stability and weather resistance for a long period of time, in order to meet the requirements of safe operation and low maintenance costs of railways. The bending strength of polyurethane composite railway sleepers is much higher than that of wooden sleepers. It has excellent mechanical properties and is not affected by climate. The service life can reach at least 50 years, which is more cost-effective. In addition, Huntsman polyurethane materials are used to produce graphene-enhanced polyurethane composite fishplates, which can replace the mechanical insulation joints and glued insulation joints currently in use on railway operating lines, and fundamentally eliminate mechanical insulation joint groove-shaped insulation plates, Insulating pipes and insulating gaskets are easily damaged, causing a "red band" in the track circuit, which may affect train operation safety. This innovative product is the first in China and even in the world. It has been in operation for 2 years and has been vigorously promoted.
SAERTEX is a global market leader in R&D and production of non-bending fiber fabrics. Its branch operations cover South Africa, the United States, France, India, Portugal, China, Brazil, Lithuania, Turkey and other countries. During this exhibition, Satex exhibited a sandwich composite structure for ICE3 rail transit. This structure uses SAERTEXLEO fireproof coating fabric, carbon fiber fabric, SAERfoam core material and other materials.
3M China demonstrated the application scenarios of different adhesives in all aspects through 5 demo shows, and brought Scotch-Weld™ structural adhesive, VHB™ double-sided tape and buckle, thin double-sided tape, spray glue and sealant, high temperature resistance Specialty tape and other products. In the autoclave carbon fiber processing technology, the non-silicon series high temperature resistant tape is suitable for carbon fiber fixing, glue overflow blocking, demoulding treatment, masking and other processing techniques up to 200 degrees Celsius, and it is easy to clean and remove without leaving glue residue.
In addition to participating in their own exhibitions, some foreign equipment manufacturers also showcase their products and technologies to the audience during the exhibition through domestic agents. In contrast, domestic equipment manufacturers not only participated in large-scale exhibitions, but also demonstrated strong product innovation capabilities.
Among them, Cool Eagle Robot brought a number of large-scale pellet 3D printing technology to the forefront of composite mold applications for the first time, attracting the attention of many industry audiences. At the booth site, Cool Eagle Robot displayed a variety of high-performance 3D printed composite molds. In addition to normal temperature molds, Cool Eagle also launched medium-temperature forming molds (temperature resistance 120°C) and high-temperature forming molds (temperature resistance 180°C). High temperature and can withstand 0.6MPa pressure without deformation, suitable for autoclave forming. Compared with the traditional metal mold manufacturing process, the composite mold 3D printing process of Cool Eagle has the advantages of short production cycle, low cost, and high material efficiency. Compared with the traditional production cycle of at least 1 month to 2 months, Cool Eagle only It takes 48 hours to complete the entire production process.
The large five-axis additive-subtracting material integrated machine (BGAM) independently developed by Cool Eagle Robot, as an industrial-grade large gantry printer, integrates the functions of additive manufacturing and subtractive processing. It has a double gantry structure and can simultaneously perform 3D printing and five Shaft machining. It is suitable for the production of large to super large parts, molds, models and industrial tools made of reinforced thermoplastic materials. It is widely used in many industries such as architectural landscape, aerospace, rail transit, energy, automobiles, ships, etc., successfully won 2020CCE-JEC Innovation Product Award.