Assistant-hybridized ultra-high molecular weight polyoxyethylene fiber and preparation method thereof
An ultra-high molecular weight, polyethylene oxide technology, applied in the direction of chemical characteristics of fibers, single-component synthetic polymer rayon, wet spinning, etc., can solve problems such as limited application, achieve increased molecular weight, improved mechanical properties, and broadened preparation. Effects of conditions and scope of application
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[0023] An aspect of the embodiments of the present invention provides a method for preparing an auxiliary agent hybridized ultra-high molecular weight polyethylene oxide fiber, which includes:
[0024] Provide a spinning solution containing ultra-high molecular weight polyethylene oxide, additives, antioxidants and dispersion media, wherein the additives include hydroxylated carbon nanotubes, hydroxylated graphene, hydroxylated cellulose nanocrystals, hydroxylated fibers Any one or a combination of two or more of the plain nanofibers;
[0025] Using wet spinning technology, inject the spinning solution into a coagulation bath at 50-90°C for coagulation and fixation to obtain jelly fibers, and then extract and dry the jelly fibers to obtain ultra-high molecular weight polyethylene oxide Extracting dry fibers, wherein the coagulation bath includes any one or a combination of two or more of ethanol, acetone, glycerin, white oil, hexane, and heptane;
[0026] And, the ultra-high-...
Embodiment 1
[0060] (1) At room temperature, 0.18g of hydroxylated graphene is added to 441g of ethylene glycol and ultrasonicated for 30 minutes to obtain a well-dispersed solution of hydroxylated graphene. Add ethylene powder and 0.09g [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester into the solution, pass nitrogen gas to remove oxygen for 10 minutes, seal it, heat to 80°C and magnetically stir for 30 minutes to pre-dissolve , transferred it into a constant temperature oscillator and dissolved at 80°C for 24h to obtain a spinning solution with a mass concentration of PEO of 2% and a mass concentration of hydroxylated graphene of 2% of the PEO concentration.
[0061] (2) Transfer the spinning solution prepared in step (1) into a constant temperature kettle of a wet spinning machine, and set the temperature of the spinning kettle to 80°C. The spinning solution is extruded through a metering pump and a spinneret, and coagulated and fixed in an ethanol bath to obt...
Embodiment 2
[0065] (1) At room temperature, after adding 0.36g of hydroxylated carbon nanotubes into 432g of ethylene glycol and ultrasonicating for 60 minutes, a well-dispersed solution of hydroxylated carbon nanotubes was obtained. Ethylene oxide powder and 0.18g [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester were passed through nitrogen in the Erlenmeyer flask for 20min to remove oxygen, then sealed, heated to 80°C with magnetic stirring for pre- Dissolved for 30 minutes, transferred to a constant temperature oscillator and dissolved at 80°C for 48 hours to obtain a spinning solution with a mass concentration of PEO of 4% and a mass concentration of hydroxylated carbon nanotubes of 2% of the PEO concentration.
[0066] (2) Transfer the spinning solution prepared in step (1) into a constant temperature kettle of a wet spinning machine, and set the temperature of the spinning kettle to 80°C. The spinning solution is extruded through a metering pump and a spin...
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Abstract
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