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Oiling agent for preparing continuous alumina fiber as well as preparation and application of oiling agent

A technology of alumina fiber and oil agent, which is applied in fiber treatment, textiles and papermaking, artificial filament of inorganic raw materials, etc., can solve problems such as internal and surface defects, improve quality and performance, increase tensile strength, reduce fracture head rate effect

Active Publication Date: 2022-05-06
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that various internal and surface defects are easily produced during the fiber pyrolysis process, the purpose of the present invention is to provide an oil agent for continuous alumina fiber preparation for the first time Its preparation and application, the oil agent is used to improve the beam strength and bundle property of the continuous alumina gel fiber after spinning, and reduce the breakage of the wool when the continuous alumina gel fiber passes through the silk barrel and guide roller after spinning. head, improving the quality and performance of the alumina fiber produced

Method used

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  • Oiling agent for preparing continuous alumina fiber as well as preparation and application of oiling agent
  • Oiling agent for preparing continuous alumina fiber as well as preparation and application of oiling agent
  • Oiling agent for preparing continuous alumina fiber as well as preparation and application of oiling agent

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Effect test

Embodiment 1

[0065] Add measured amount of anhydrous hydrofluoric acid to Simons electrolytic cell, and add measured amount of sodium fluoride to dissolve, control the temperature of the electrolytic cell at -5°C, add the measured octane and nonane two alkanes, divide once or more During the reaction process, the concentration of octane and nonane in the electrolyte is controlled between 3% and 4%, the voltage is controlled at 5V, and the current is 50A. After 120 hours of reaction, the reaction is stopped, and the content of 30% is obtained by rectification. The mixture of fluorooctane and 70% perfluorononane is the main component A. The lubricant is castor oil and triglyceride with a mass ratio of 5:1. The antistatic agent is selected from alkyl acid phosphate and polyoxyethylene alkyl phosphate, with a mass ratio of 2:1. The emulsifier is glycerin fatty acid ester and alkyl thiosuccinate, the mass ratio is 5:1. Main component A (perfluorooctane, perfluorononane) of 85 mass parts, the ...

Embodiment 2

[0067]Add measured amount of anhydrous hydrofluoric acid to Simons electrolytic cell, and add measured amount of sodium fluoride to dissolve, control the temperature of the electrolytic cell at 0°C, add the measured octane and decane, and divide it once or several times Input, during the reaction process, the concentration of octane and decane in the electrolyte is controlled between 4.5% and 5%, the voltage is controlled at 5.2V, and the current is 55A. After 150 hours of reaction, the reaction is stopped, and the content is 20% through distillation. The mixture of fluorooctane and 80% perfluorodecane is the main component A. The lubricant is perfluoropolyether and spindle oil with a mass ratio of 3:1. The antistatic agent is selected from alkyl acid phosphate. Emulsifier is selected glycerin fatty acid ester for use. 80 parts by mass of main component A (perfluorooctane, perfluorodecane), 5 parts by mass of lubricant (perfluoropolyether, spindle oil), 5 parts by mass of an...

Embodiment 3

[0069] Add measured amount of anhydrous hydrofluoric acid to Simons electrolytic cell, and add measured amount of sodium fluoride to dissolve, control the temperature of the electrolytic cell at 5°C, add the measured nonane and decalin two alkanes, one or more times input, the concentration of nonane and decalin in the electrolyte is controlled between 3.5% and 4% during the reaction, the voltage is controlled at 5.2V, and the current is 55A. After 200 hours of reaction, the reaction is stopped, and the content is 60% through distillation. The mixture of fluorooctane and 40% perfluorodecane is the main component A. Spindle oil and white oil are used as lubricants with a mass ratio of 4:1. The antistatic agent is selected from alkyl sulfate and alkyl acid phosphate, and the mass ratio is 1:1. The emulsifier is glycerin fatty acid ester and alkyl thiosuccinate with a mass ratio of 1:1. The main component A (perfluorononane, perfluorodecalin) of 90 mass parts, the lubricant (sp...

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Abstract

The invention discloses an oiling agent for continuous alumina fiber preparation and preparation and application thereof, and the oiling agent provided by the invention contains more than 60wt% of a main component A, the main component A is selected from at least one of halogen-containing alkane and halogen-containing amine, the main component A is preferably selected from at least one of fluorine-containing alkane, chlorine-containing alkane and fluorine-containing amine, and the oiling agent is used for preparing continuous alumina fibers. According to the oiling agent for preparing the continuous alumina fiber, in the production process of the continuous alumina fiber, doubling, broken ends and broken filaments generated by friction when the alumina gel fiber is in contact with a guide roller can be effectively reduced, the bundling property of the fiber is improved, and the tensile strength of the alumina fiber can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of oil agents, and in particular relates to an oil agent for preparing continuous alumina fibers and its preparation and application. Background technique [0002] Alumina fiber is a kind of high-performance new inorganic fiber. It uses alumina as the main component and contains a certain amount of additives, such as silicon dioxide, boron nitride, iron oxide, zirconia and magnesium oxide. When the silica content in the fiber is high, it is generally called aluminum silicate fiber in the industry; as the alumina content in the fiber increases to more than 55%, the prepared fiber is generally a real alumina fiber. Alumina fibers can be divided into short fibers, long fibers and whiskers according to their morphology. Alumina fiber has good surface activity and is easy to compound with resin, metal and ceramic matrix to form many composite materials with excellent performance and wide application. Based on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/08D06M13/33D01F9/08
CPCD06M13/08D06M13/085D06M13/33D01F9/08
Inventor 马运柱刘强刘文胜王娟姚树伟
Owner CENT SOUTH UNIV