Preparation method of carbon fiber precursor oil agent

A technology of carbon fiber and silk oil agent, which is applied in the fields of carbon fiber, fiber treatment, textiles and papermaking, etc., which can solve the problem of few manufacturers of carbon fiber raw silk oil agent, reduce the phenomenon of monofilament adhesion and parallel silk, and have strong permeability , Good process stability

Inactive Publication Date: 2014-12-03
ZHONGFU SHENYING CARBON FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Carbon fiber raw silk oil should have excellent high temperature resistance, antistatic performance, wetting and lubricating performance, clustering and anti-sticking performance, bu

Method used

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  • Preparation method of carbon fiber precursor oil agent
  • Preparation method of carbon fiber precursor oil agent
  • Preparation method of carbon fiber precursor oil agent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1, a preparation method of carbon fiber raw silk finish, the steps are as follows:

[0030] Use alkylphenol polyoxyethylene ether type nonionic surfactant and fatty alcohol polyoxyethylene ether type nonionic surfactant as composite emulsifier, put the composite emulsifier in a container, raise the temperature to 60℃, and stir After uniformity, cool to room temperature to obtain a milky white or light yellow composite emulsifier. Take the composite emulsifier and 60 parts of amino-modified polydimethylsiloxane (the viscosity is 100mm at 25°C). 2 / s, the ammonia value is 0.6, the chemical formula (Ⅰ) of the modified group and 40 parts of polyether modified polydimethylsiloxane (the viscosity is 1500mm at 25°C) 2 / s, the modification amount is 0.5) The compound modified silicone oil is put into the high shear emulsifier according to the weight ratio of 3:10 and stirs evenly. Add 1% of the isotridecyl ether phosphate methyl salt and fatty alcohol poly Add oxyethyle...

Example Embodiment

[0031] Embodiment 2, a preparation method of carbon fiber raw silk oil, the steps are as follows:

[0032] Use the compound of C13 linear alcohol ether type nonionic surfactant and fatty alcohol polyoxyethylene ether type nonionic surfactant as composite emulsifier, put the composite emulsifier in a container, raise the temperature to 60℃, and stir evenly Cool to room temperature to obtain a milky white or light yellow composite emulsifier, take the composite emulsifier and 60 parts of amino-modified polydimethylsiloxane (the viscosity is 100mm at 25°C) 2 / s, the ammonia value is 0.6, the chemical formula (Ⅰ) of the modified group and 40 parts of polyether modified polydimethylsiloxane (the viscosity is 1500mm at 25°C) 2 / s, the modification amount is 0.5) The compound modified silicone oil is put into the high shear emulsifier according to the weight ratio of 3:10 and stirred evenly, and 1% isotridecanol ether phosphate methyl salt and fatty alcohol polyoxygen are added. Vinyl et...

Example Embodiment

[0033] Example 3, a preparation method of carbon fiber raw silk oil, the steps are as follows:

[0034] Use the compound of C13 linear alcohol ether type nonionic surfactant and fatty alcohol polyoxyethylene ether type nonionic surfactant as composite emulsifier, put the composite emulsifier in the container, raise the temperature to 60℃, and stir evenly Cool to room temperature to obtain a milky white or light yellow composite emulsifier, take the composite emulsifier and 50 parts of amino-modified polydimethylsiloxane (the viscosity is 100mm at 25°C) 2 / s, the ammonia value is 0.6, the chemical formula of the modified group (I)), 30 parts of polyether modified polydimethylsiloxane (the viscosity is 1500mm at 25°C) 2 / s, modification amount 0.5), 20 parts of epoxy modified polydimethylsiloxane (viscosity at 25℃ is 3000mm 2 / s, the epoxy equivalent value is 0.15, the compound modified silicone oil of the modified group chemical formula (I) is put into the high-shear emulsifier acco...

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Abstract

The invention discloses a preparation method of a carbon fiber precursor oil agent. The method comprises the following steps: putting a composite emulsifier and a characteristic composite modified silicone oil in a weight ratio of (1-4) to (3-10) into a high-shear emulsifying machine; evenly stirring; adding a composite assistant; dropwise adding an appropriate amount of deionized water; stirring for 20-120 minutes; and adjusting the pH value to 3-10, thereby obtaining a light blue, light yellow or white emulsion, namely the carbon fiber precursor oil agent. According to the method, the technology operation is simple and can be directly applied to an industrial production line. When in use, the oil agent prepared by the method has good permeability, high temperature resistance and good process stability, and can well enhance the bunching performance of fibers and well protect the fibers in the whole process of pre-oxidation as well as in the initial stage of low-temperature carbonization, thereby greatly reducing the phenomena of monofilament adhesion and doubling, reducing the surface detects of the fibers, and enhancing the performance of the fibers.

Description

technical field [0001] The invention relates to a preparation method of an oil agent, in particular to a preparation method of a carbon fiber raw silk oil agent. Background technique [0002] Carbon fiber has many advantages such as high strength, high modulus, high temperature resistance, acid and alkali corrosion resistance, etc., and is widely used in aerospace, civil engineering, new energy and other fields. At the same time, carbon fiber composite materials are being widely used in various industries. With the rapid development of economy and technology, the demand for carbon fiber will further increase. [0003] High-quality carbon fiber precursors are the key to preparing high-quality carbon fibers, and the properties of the precursors directly determine the properties of the final carbon fibers. In the raw silk manufacturing process, the oiling process is an extremely important production process. High-quality oiling agents can solve the adhesion of the filaments du...

Claims

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Application Information

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IPC IPC(8): D06M15/643D06M15/647D06M15/65D06M101/40
Inventor 刘芳欧阳新峰陈秋飞崔丽敏
Owner ZHONGFU SHENYING CARBON FIBER
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