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Special polyimide fiber spinning oil and method for preparing same

A technology of polyimide fiber and oil agent, which is applied in the field of special oil agent for polyimide fiber spinning and its preparation, and can solve the problem that the wettability and emulsification of spinning oil agent are difficult to meet the production needs of polyimide fiber , poor thermal stability, low smoke temperature and thermal decomposition temperature, etc., to achieve good mutual fusion performance, good thermal stability, and improve unwinding and use performance

Inactive Publication Date: 2019-02-19
浙江浩睿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing spinning oils have poor thermal stability, relatively low fume temperature and thermal decomposition temperature, and the wettability and emulsification of spinning oils are difficult to meet the needs of polyimide fiber production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0070] The preparation method of special oil agent for spinning polyimide fiber comprises the following steps:

[0071] Take each component according to the ratio, put the simethicone oil into the oil agent blending device with steam heating and chilled water cooling system, heat up and stir, the stirring speed is 25-30rpm, and the temperature reaches 95-105°C and then balance for 20-30min. Then add sorbitan monooleate polyether, dodecyl phosphate diethanolamine, fatty alcohol polyoxyethylene ether, triethanolamine, isomeric tridecyl atactic polyether, triglycerin under stirring condition Fatty acid ester, polyoxyethylene lauryl ether. Stir for 35-40min after each component is added, and the stirring speed is 40-45rpm. After adding each component, increase the stirring speed to 50-60rpm, then raise the temperature to 150-160°C, and balance for 6-12h. Bring to room temperature. Before use, the obtained oil agent is diluted to a concentration of 5-15wt%.

Embodiment 1

[0073] . A special oil for polyimide fiber spinning, comprising the following components by mass percentage:

[0074] Simethicone, 35%,

[0075] Sorbitan monooleate polyether, 7%,

[0076] Diethanolamine Lauryl Phosphate, 10%,

[0077] Fatty alcohol polyoxyethylene ether, 13%,

[0078] Triethanolamine, 8%,

[0079] Isomeric Tridecyl Atactic Polyether, 13%,

[0080] Tripolyglycerin Fatty Acid Ester, 10%,

[0081] Laureth, 4%.

[0082] Preparation method: use an oil preparation blending device with a temperature control system for steam heating and chilled water cooling. First, take simethicone oil and put it into the oil preparation device according to the oil preparation formula ratio and oil preparation production capacity, and then carry out Heat up and stir at a stirring speed of 30rpm. When the temperature reaches 100°C, equilibrate for 30 minutes, then add various ingredients in the formula in turn, and stir for 40 minutes after adding each ingredient at a stirring ...

Embodiment 2

[0084] . A special oil for polyimide fiber spinning, comprising the following components by mass percentage:

[0085] Simethicone, 34%,

[0086] Sorbitan monooleate polyether, 8%,

[0087] Diethanolamine Lauryl Phosphate, 9%,

[0088] Fatty alcohol polyoxyethylene ether, 14%,

[0089] Triethanolamine, 7%,

[0090] Isotridecanyl Atactic Polyether, 14%,

[0091] Tripolyglycerin Fatty Acid Ester, 9%,

[0092] Laureth, 5%.

[0093] Preparation method: use an oil preparation blending device with a temperature control system for steam heating and chilled water cooling. First, take simethicone oil and put it into the oil preparation device according to the oil preparation formula ratio and oil preparation production capacity, and then carry out Heat up and stir at a stirring speed of 25rpm. When the temperature reaches 100°C, equilibrate for 20 minutes, then add various ingredients in the formula in turn, and stir for 35 minutes after adding each ingredient at a stirring speed ...

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Abstract

The invention relates to the field of textile auxiliaries, and discloses special polyimide fiber spinning oil and a method for preparing the same. The special polyimide fiber spinning oil comprises, by weight, 30-40% of dimethyl silicone oil, 6-10% of sorbitan mono-olein polyether, 8-12% of dodecyl phosphate ester diethanol amine, 10-20% of fatty alcohol polyoxyethylene ether, 6-10% of triethanolamine, 11-17% of isomeric tridecanol random polyether, 8-12% of tri-polyglyceryl fatty acid ester and 2-6% of dodecyl polyoxylethylene ether. The special polyimide fiber spinning oil and the method have the advantages that the special polyimide fiber spinning oil is specially used for preparing polyimide fibers and is outstanding in heat stability, emulsifying property, wettability and oil film covering performance, the requirements on realizing effects of protecting fiber silver in high-temperature states can be met, and the fiber product quality and production stability can be guaranteed.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to a special oil agent for polyimide fiber spinning and a preparation method thereof. Background technique [0002] Polyamideimide fiber has many functions such as high temperature resistance, acid corrosion resistance, antibacterial, insulation shielding, flame retardant, self-extinguishing, wave transparency, and radiation protection. [0003] The production process of polyamideimide fiber is to first polymerize to form polyamic acid solution, then spin it into polyamic acid fiber, and then undergo high temperature (250-350°C) dehydration and imidization treatment to prepare polyimide Fiber, and then stretched at high temperature (about 400-450 ° C) to obtain the final product of polyimide fiber, therefore, two high-temperature treatments are required before obtaining the ideal polyimide fiber product, and the surface of the fiber is relatively dense and smooth . Therefore, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06M15/53D06M13/368D06M13/224D06M101/30
CPCD06M13/224D06M13/368D06M15/53D06M15/643D06M2101/30
Inventor 戎智宗丁尔民张守运张鹏沈慧静
Owner 浙江浩睿新材料科技有限公司
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