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General-purpose pitch-based carbon fiber spinning finish

A technology of pitch-based carbon fiber and spinning oil, which is applied in the direction of carbon fiber, fiber treatment, textiles and papermaking, and can solve problems such as easy adhesion, static electricity and wear

Inactive Publication Date: 2016-01-20
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of easy adhesion, static electricity and wear in the preparation process of the above-mentioned general-purpose pitch-based carbon fiber, and provide a general-purpose pitch-based carbon fiber spinning with antistatic, lubricating and anti-sticking isolation functions. Oil agent

Method used

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  • General-purpose pitch-based carbon fiber spinning finish
  • General-purpose pitch-based carbon fiber spinning finish
  • General-purpose pitch-based carbon fiber spinning finish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Taking 100g of deionized water used to prepare general-purpose pitch-based carbon fiber spinning oil as an example, other raw materials and their mass ratios are as follows:

[0019]

[0020] The preparation method is as follows: 100g deionized water, 2g methyl phenyl silicone oil, 5g polypropylene glycol with an average molecular weight of 200, 6g sorbitan fatty acid ester S-20 and 20g acetone are added to the beaker in turn under stirring , heated up to 50°C, stirred at constant temperature for 30 minutes, and then ultrasonicated for 15 minutes with an ultrasonic cleaner to obtain a general-grade pitch-based carbon fiber spinning oil, which has no delamination phenomenon after being placed for 3 months, and its viscosity is 8mPa.s after testing , the light transmittance is 90%, which is basically the same as the appearance, viscosity and light transmittance of the newly prepared oil agent, indicating that its stability is better.

Embodiment 2

[0022] Taking 100g of deionized water used to prepare general-purpose pitch-based carbon fiber spinning oil as an example, other raw materials and their mass ratios are as follows:

[0023]

[0024] Its preparation method is the same as that of Example 1, and the obtained oil agent has no delamination phenomenon after being placed for 3 months, its viscosity is 2 mPa.s after testing, and its light transmittance is 85%.

Embodiment 3

[0026] Taking 100g of deionized water used to prepare general-purpose pitch-based carbon fiber spinning oil as an example, other raw materials and their mass ratios are as follows:

[0027]

[0028] Its preparation method is the same as that of Example 1, and the obtained oil agent has no delamination phenomenon after being placed for 3 months, its viscosity is 10 mPa.s after testing, and its light transmittance is 98%.

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/224D06M13/165D06M13/46D06M15/643D06M15/53D06M101/40
Inventor 刘春玲马静董文生付凤奇
Owner SHAANXI NORMAL UNIV
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