Heat-resistant non-silicon carbon fiber oiling agent as well as preparation and application thereof

A carbon fiber, non-silicon technology, applied in the field of heat-resistant non-silicon-based carbon fiber oil, can solve the problems of poor high temperature resistance, etc., achieve good stability, solve the effects of easy gelling, and excellent permeability

Pending Publication Date: 2022-03-15
KAIFENG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a heat-resistant non-silicon-based carbon fiber oil and its preparation and application, so as to solve the technical problem of poor high-temperature resistance of non-silicon-based carbon fiber oil in the prior art

Method used

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  • Heat-resistant non-silicon carbon fiber oiling agent as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: heat-resistant non-silicon carbon fiber oil

[0030] Take polyethylene glycol PEG200 and bisphenol A diether dianhydride (feeding molar ratio is 4:1) to react under nitrogen protection, the reaction temperature is 170°C, the reaction time is about 4 to 6 hours, and the hydroxyl value after the reaction is measured After reaching 50, the pressure was reduced to 1.33kpa, and the small molecular substances were gradually distilled at 90°C, and the residue was the obtained substance A.

[0031] Preparation of carbon fiber non-silicon oil agent: substance A: 10%; fatty alcohol polyoxyethylene ether AEO 9 : 8%; Didodecyldimethylammonium chloride 1%; Ethanol: 1%; Antistatic agent JL-WTA: 1%, the balance is deionized water. Mix substance A, surfactant and additives, stir evenly, add deionized water dropwise, and obtain a stable emulsion through high-speed dispersion or high-pressure homogenization treatment, which is a heat-resistant non-silicon carbon fiber oil age...

Embodiment 2

[0033] Example 2: heat-resistant non-silicon carbon fiber oil

[0034] Take polyethylene glycol PEG800 and biphenyl ether dianhydride (the molar ratio of feed is 6:1) to react under nitrogen protection, the reaction temperature is 180°C, the reaction time is about 6-8 hours, and the hydroxyl value after the reaction reaches 90. , decompressed to 1.33kpa, distilled off the small molecular substances at 120°C, and the residue was the obtained substance A.

[0035] Carbon fiber oil preparation: substance A: 13%; fatty alcohol polyoxyethylene ether AEO 9 : 6%; Didodecyl dimethyl ammonium chloride (bromide) 2%; Isomerized alkyl alcohol polyoxyethylene ether 2%; Ethanol: 1%; Antistatic agent JL-WTA: 1%, remaining The volume is deionized water. After mixing and stirring substance A, surfactant, and additives evenly, add deionized water dropwise, and obtain a stable emulsion through high-speed dispersion or high-pressure homogenization treatment, which is a heat-resistant non-silico...

Embodiment 3

[0037] Example 3: heat-resistant non-silicon carbon fiber oil

[0038] Take polyethylene glycol PEG400 and pyrophthalic anhydride (mole ratio: 6:1) to react under nitrogen protection, the reaction temperature is 160°C, the reaction time is about 6-8 hours, and the hydroxyl value reaches 60 after the measurement. The pressure was reduced to 1.33kPa, and the small molecular substances were distilled off at a temperature of 60°C, and the residue was the obtained substance A.

[0039] Carbon fiber oil preparation: substance A: 13%; fatty alcohol polyoxyethylene ether AEO 10 : 7%; isomerized alkyl alcohol polyoxyethylene ether 2%; ethanol: 1%; antistatic agent JL-WTA: 1%, and the balance is deionized water. After mixing and stirring substance A, surfactant, and additives evenly, add deionized water dropwise, and obtain a stable emulsion through high-speed dispersion or high-pressure homogenization treatment, which is a heat-resistant non-silicon-based oil agent.

[0040] It is pr...

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Abstract

The invention discloses a heat-resistant non-silicon carbon fiber oiling agent as well as preparation and application thereof, and aims to solve the technical problem of poor high temperature resistance of a non-silicon carbon fiber oiling agent in the prior art. The heat-resistant non-silicon carbon fiber oiling agent is prepared by taking a substance A with an ester group and an ether functional group as a basis and adding a surfactant, an antistatic agent and the like, has relatively high heat resistance, lubrication and water solubility, is a liquid at the temperature of 300 DEG C or below, is a flexible film at the temperature of 350 DEG C, and is a non-silicon carbon fiber oiling agent. The carbon fibers can be well protected in the pre-oxidation stage and low-temperature carbonization stage of the carbon fibers, and the problems that an existing oiling agent product for the carbon fibers is prone to gelatinization and roller sticking, many broken filaments exist, and high-temperature resistance is difficult to consider are solved.

Description

technical field [0001] The invention relates to the technical field of carbon fiber oil, in particular to a heat-resistant non-silicon carbon fiber oil and its preparation and application. Background technique [0002] Carbon fiber is currently a key material supporting strategic emerging industries, and is widely used in national defense, aerospace, wind power, building reinforcement, sporting goods and other fields. [0003] Carbon fiber oil is an indispensable and important additive in the production process of carbon fiber. It can effectively protect and lubricate carbon fiber in the stages of spinning, pre-oxidation, and low-temperature carbonization. High-quality oil is the key to producing high-quality carbon fiber. key technologies. The oil agent mainly plays the role of protection, lubrication and antistatic in the production process of carbon fiber; at present, the production technology of carbon fiber oil agent is mainly mastered by some foreign companies, while ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F11/14
CPCD01F11/14
Inventor 石海洋王斐胡海霞王迪刘昆阳
Owner KAIFENG UNIV
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