Production process for complete set of general asphalt carbon fiber

Abstract

The invention belongs to the technical field of a fiber asphalt preparation method, and particularly relates to a production process for a complete set of a general asphalt carbon fiber. The production process solves problems of a conventional production method for a general asphalt carbon fiber that a technology is complex, cost is high, and continuous production cannot be carried out. The production process comprises steps as follows: getting aromatic heavy components as raw materials, adjusting by asphalt, fusing and spinning, continuously non-melting, and continuously carbonizing, so as to obtain the general asphalt carbon fiber. The production process has the advantages of being simple in production process and technological condition, low in industrialization cost, and strong in industrialization operability and the like.

Description

technical field [0001] The invention belongs to the technical field of fiber pitch preparation methods, and in particular relates to a production process of a complete set of general-grade pitch carbon fibers. Background technique [0002] There are two main series of industrially produced carbon fibers in the world according to raw materials. One is polyacrylonitrile as raw material, and the other is petroleum asphalt or coal tar pitch. The output of the former accounts for about 90% of the total output of carbon fiber, and the latter Those accounted for about 10%. The pitch-based carbon fiber is divided into two categories, one is general-grade pitch carbon fiber, and the other is high-performance carbon fiber. [0003] The research and development of pitch carbon fiber in my country is earlier, but there is a big gap in development, production and application compared with foreign countries. In the early 1970s, the Shanghai Coking Plant successfully developed pitch carb...

AI Technical Summary

Problems solved by technology

[0003] The research and development of pitch carbon fiber in my country is earlier, but there is a big gap compared with foreign countries in terms of development, production and application

In the early 1970s, the Shanghai Coking Plant successfully developed pitch carbon fiber using coal tar as a raw material, but due to unstable product quality and research results, it failed to realize industrial production.

Subsequently, the former Ministry of Metallurgical Industry prepared to build a new material research institute in Yantai, Shandong, and built a set of pitch carbon fiber production equipment with a production capacity of 70-100 tons per year. discontinued status

In the early 1990s, Anshan Dongya Carbon Fiber Co., Ltd. in Liaoning Province introduced a 200-ton / year melt-blown pitch carbon fiber production line from American Ashland Corporation, and it was completed and put into operation in 1995. At present, the operation of the device has tended to Normal, but its product performance is low

However, due to unoptimized process conditions, the production process cannot be carried out continuously, and no industrial production capacity has been formed.