General grade pitch-based carbon fiber spinning oil

Abstract

The invention discloses general grade pitch-based carbon fiber spinning oil. The oil is prepared by mixing deionized water, a lubricating agent, an antistatic agent, an emulsifying agent and a balance regulator in a stirring state. The general grade pitch-based carbon fiber spinning oil has the beneficial effects that the viscosity of the oil is 2-20mPa.s and the light transmittance is 80-98%; the oil has an antistatic effect when sprayed onto fiber surfaces, ensures cohesive forces between fiber monofilaments, achieves a fiber packing effect and prevents fiber adhesion; oil films formed on the fiber surfaces not only protect the monofilament surfaces from being damaged in spinning but also have the same adhesion prevention and isolation effects in the non-melting and carbonizing processes, so that the problems of easiness in adhesion, static electricity, wear and the like in the general grade pitch-based carbon fiber preparation process can be solved; test results indicate that the contact angles between the general grade pitch-based carbon fiber spinning oil and the fiber surfaces are 0-5 degrees, the oil can be well coated on the fiber surfaces, and the fiber strength retention rate is 95-100%, so that the oil basically has no impact on the tensile strength of fibers.

Description

technical field

[0001] The invention relates to an auxiliary agent used in the spinning process of synthetic fiber filaments, in particular to a general-grade pitch-based carbon fiber spinning oil. Background technique

[0002] General-purpose pitch-based carbon fiber is a special fiber with a carbon content greater than 92% that is obtained from isotropic petroleum pitch or coal pitch as raw material, through pitch refining, melt spinning, pre-oxidation, and carbonization. General-purpose pitch-based carbon fiber is rich in raw material resources. Compared with polyacrylonitrile-based carbon fiber, it has a higher carbonization yield, and the cost is far lower than high-performance mesophase pitch-based carbon fiber. It has very wide application prospects and can be used for asbestos generation. It can also be used in heat insulation, sealing materials, wear-resistant braking materials, and it is also widely used in audio materials and fuel cell electrodes. In addition, ac...

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