China's carbon fiber leader: another high-tech material industry you don't know
Time：
2018/12/28
Carbon fiber is an important strategic material for the development of national defense and military industry and the national economy. It is a key technology-intensive material. The carbon fiber industry is also a strategic emerging industry that the country focuses on. The production of carbon fiber in the world is mainly concentrated in Japan, the United States, Germany and other developed countries. China's carbon fiber industry is still in its infancy. There are few enterprises that master the core technology of high-performance carbon fiber research and development and can achieve stable and controllable large-scale production. The whole industry has outstanding problems such as backward key technology, backward downstream application development, high production costs, and weak market competitiveness.
The demand for carbon fiber in China has grown rapidly. In 2017, the national demand for carbon fiber was about 26000 tons. The supply of carbon fiber is heavily dependent on imports, and the situation of oversupply is prominent. With the introduction of relevant national support policies, the R&D and production capacity of China's carbon fiber enterprises have been continuously enhanced, and the carbon fiber industry has embarked on a fast track of development.
Vat dyes vat dyes are insoluble in water and cannot be dyed directly. It is necessary to reduce it to a cryptochrome in the alkaline strong reducing solution of caustic soda and sodium hydrosulfite. The cotton fiber is dyed by the cryptochrome, and then oxidized to revert to an insoluble dye and fixed on the fiber. Vat dyes have complete chromatograms, bright colors, and good color fastness to sunlight and soaping. However, due to the high price, some yellow and orange varieties have photosensitive brittleness, so their application is limited. When dyeing or printing, the post-soaping treatment should be strengthened to remove the floating color and improve the brightness
The demand for carbon fiber in China has grown rapidly. In 2017, the national demand for carbon fiber was about 26000 tons. The supply of carbon fiber is heavily dependent on imports, and the situation of oversupply is prominent. With the introduction of relevant national support policies, the R&D and production capacity of China's carbon fiber enterprises have been continuously enhanced, and the carbon fiber industry has embarked on a fast track of development.
Vat dyes vat dyes are insoluble in water and cannot be dyed directly. It is necessary to reduce it to a cryptochrome in the alkaline strong reducing solution of caustic soda and sodium hydrosulfite. The cotton fiber is dyed by the cryptochrome, and then oxidized to revert to an insoluble dye and fixed on the fiber. Vat dyes have complete chromatograms, bright colors, and good color fastness to sunlight and soaping. However, due to the high price, some yellow and orange varieties have photosensitive brittleness, so their application is limited. When dyeing or printing, the post-soaping treatment should be strengthened to remove the floating color and improve the brightness
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