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The Special Fiber Division of Ningbo Institute of Materials of the Chinese Academy of Sciences obtained a tensile modulus of 541GPa (reaching 540GPa of similar foreign products) and a tensile strength of 4.
86GPa (far better than 4.
02GPa of foreign products).
It has made a major breakthrough in the field of high-strength and high-modulus carbon fiber localization preparation technology, breaking the monopoly of foreign countries in this field and filling the domestic technology gap
.
Infographic
High-strength and high-mode carbon fiber, also known as graphite fiber, has a carbon content of more than 99%, has a higher modulus, and has a low thermal expansion coefficient, high electrical conductivity, good thermal stability and dimensional stability, which can be used as a key material
in the fields of spacecraft and aerospace.
However, its core preparation technology is monopolized by foreign countries and blocked
by China.
Ningbo Materials Institute has successively broken through the pilot and engineering technology
of high-strength medium-mold carbon fiber.
In May 2015, M50J grade high-strength and high-mode carbon fiber was successfully prepared, with tensile strength and tensile modulus as high as 5.
12GPa and 475GPa
, respectively.
At the end of last year, researchers carried out the development of higher-level M55J high-strength and high-mode carbon fiber, and recently successfully achieved a breakthrough
in its preparation technology.
Ningbo Materials Institute has continuous and stable production capacity of M40J, M46J and M50J products, and has formed M55J high-strength and high-mode carbon fiber preparation technology
.
Zhang Yonggang, a senior engineer at the institute, said that although the domestic M55J high-strength and high-mode carbon fiber has reached or even exceeded similar foreign products in terms of main performance, it is still necessary to solve the problems of stable production and the matching of
fiber and matrix during composite material processing.
The Special Fiber Division of Ningbo Institute of Materials of the Chinese Academy of Sciences obtained a tensile modulus of 541GPa (reaching 540GPa of similar foreign products) and a tensile strength of 4.
86GPa (far better than 4.
02GPa of foreign products).
It has made a major breakthrough in the field of high-strength and high-modulus carbon fiber localization preparation technology, breaking the monopoly of foreign countries in this field and filling the domestic technology gap
.
Infographic
High-strength and high-mode carbon fiber, also known as graphite fiber, has a carbon content of more than 99%, has a higher modulus, and has a low thermal expansion coefficient, high electrical conductivity, good thermal stability and dimensional stability, which can be used as a key material
in the fields of spacecraft and aerospace.
However, its core preparation technology is monopolized by foreign countries and blocked
by China.
Ningbo Materials Institute has successively broken through the pilot and engineering technology
of high-strength medium-mold carbon fiber.
In May 2015, M50J grade high-strength and high-mode carbon fiber was successfully prepared, with tensile strength and tensile modulus as high as 5.
12GPa and 475GPa
, respectively.
At the end of last year, researchers carried out the development of higher-level M55J high-strength and high-mode carbon fiber, and recently successfully achieved a breakthrough
in its preparation technology.
Ningbo Materials Institute has continuous and stable production capacity of M40J, M46J and M50J products, and has formed M55J high-strength and high-mode carbon fiber preparation technology
.
Zhang Yonggang, a senior engineer at the institute, said that although the domestic M55J high-strength and high-mode carbon fiber has reached or even exceeded similar foreign products in terms of main performance, it is still necessary to solve the problems of stable production and the matching of
fiber and matrix during composite material processing.
