Method for preparing composite fiber

A composite fiber, polyvinyl alcohol technology, applied in the direction of conjugated synthetic polymer rayon, etc., can solve the problems of unenvironmental protection, complex composite fiber process, poor precision, etc.

Inactive Publication Date: 2018-09-14
程桂平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The method for preparing composite fibers in the prior art is complex in process, poor in precision, and not environmentally friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing composite fibers, comprising:

[0016] Step 1: Add 10g of polyvinyl alcohol solids to 90mL of deionized water, soak for 2h under stirring, add 2g of polyphenylene ether, and then place the reaction system in an oil bath at 98°C and stir and reflux overnight;

[0017] Step 2: filter with gauze to remove incompletely dissolved solids after the reaction finishes, and use quartz sand to carry out secondary filtration;

[0018] Step 3: after the solution is cooled, take 2.1g polyvinyl alcohol solution, dry overnight at 80°C, weigh the solid mass, and calculate the actual polyvinyl alcohol mass fraction to be 9%;

[0019] Step 4: Mix the polyvinyl alcohol aqueous solution with the mass fraction of 9% and the polyetherimide aqueous solution with the mass fraction of 30%, and make it mix evenly under the effect of vortex vibration to obtain polyvinyl alcohol / polyetherimide The spinning solution whose mass ratio is 4 / 1;

[0020] Step 5: Take an appropria...

Embodiment 2

[0026] A method for preparing composite fibers, comprising:

[0027] Step 1: Add 10g of polyvinyl alcohol solids to 90mL of deionized water, soak for 2h under stirring, add 2g of polyphenylene ether, and then place the reaction system in an oil bath at 98°C and stir and reflux overnight;

[0028] Step 2: filter with gauze to remove incompletely dissolved solids after the reaction finishes, and use quartz sand to carry out secondary filtration;

[0029] Step 3: after the solution is cooled, take 2.2g polyvinyl alcohol solution, dry overnight at 80°C, weigh the solid mass, and calculate that the actual polyvinyl alcohol mass fraction is 9%;

[0030] Step 4: Mix the polyvinyl alcohol aqueous solution with the mass fraction of 9% and the polyetherimide aqueous solution with the mass fraction of 30%, and make it mix evenly under the effect of vortex vibration to obtain polyvinyl alcohol / polyetherimide The spinning solution whose mass ratio is 4 / 1;

[0031] Step 5: Take an appropr...

Embodiment 3

[0037] A method for preparing composite fibers, comprising:

[0038] Step 1: Add 10g of polyvinyl alcohol solids to 90mL of deionized water, soak for 2h under stirring, add 2g of polyphenylene ether, and then place the reaction system in an oil bath at 98°C and stir and reflux overnight;

[0039] Step 2: filter with gauze to remove incompletely dissolved solids after the reaction finishes, and use quartz sand to carry out secondary filtration;

[0040] Step 3: after the solution is cooled, take 2.3g polyvinyl alcohol solution, dry overnight at 80°C, weigh the solid mass, and calculate the actual polyvinyl alcohol mass fraction to be 9%;

[0041] Step 4: Mix the polyvinyl alcohol aqueous solution with the mass fraction of 9% and the polyetherimide aqueous solution with the mass fraction of 30%, and make it mix evenly under the effect of vortex vibration to obtain polyvinyl alcohol / polyetherimide The spinning solution whose mass ratio is 4 / 1;

[0042] Step 5: Take an appropria...

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PUM

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Abstract

A method for preparing composite fiber includes: step 1, adding 10g of polyvinyl alcohol solid into 90mL of deionized water, soaking for 2h while stirring, adding 2g of polyphenyl ether, putting a reaction system into oil bath at 98 DEG C, stirring, and allowing backflow overnight; step 2, using gauge for filtering after reaction is finished to remove incompletely dissolved solid, and using quartzsand for secondary filtering; step 3, after a solution is cooled, weighing 2.1g of polyvinyl alcohol solution, drying at 80 DEG C overnight, weighing mass of solid, and calculating to actually acquire mass fraction of polyvinyl alcohol being 9%.

Description

technical field [0001] The present invention relates to a method for preparing composite fibers. Background technique [0002] The method for preparing composite fibers in the prior art is complex in process, poor in precision and not environmentally friendly. Contents of the invention [0003] A method for preparing composite fibers, comprising: [0004] Step 1: Add 10g of polyvinyl alcohol solids to 90mL of deionized water, soak for 2h under stirring, add 2g of polyphenylene ether, and then place the reaction system in an oil bath at 98°C and stir and reflux overnight; [0005] Step 2: filter with gauze to remove incompletely dissolved solids after the reaction finishes, and use quartz sand to carry out secondary filtration; [0006] Step 3: after the solution is cooled, take 2.1g polyvinyl alcohol solution, dry overnight at 80°C, weigh the solid mass, and calculate the actual polyvinyl alcohol mass fraction to be 9%; [0007] Step 4: Mix the polyvinyl alcohol aqueous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/10D01F8/16
CPCD01F8/10D01F8/16
Inventor 程桂平
Owner 程桂平
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