Dry spinning preparation method of polyarylether fibers with phthalazone structure

A phthalazinone and dry spinning technology, which is applied in the direction of spinning solution preparation, single-component polyether artificial filament, dry spinning, etc., to achieve dielectric properties, radiation resistance, high heat resistance, and equipment less demanding effect

Active Publication Date: 2013-12-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various structural parts and products can be manufactured by injection, extrusion, molding and other thermoforming methods, and high-temperature resistant special insulating paints, coatings, functional films, etc. can also be prepared by dissolution processing; but polyarylethers containing phthalazinone structure High-performance fibers are still blank

Method used

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  • Dry spinning preparation method of polyarylether fibers with phthalazone structure
  • Dry spinning preparation method of polyarylether fibers with phthalazone structure
  • Dry spinning preparation method of polyarylether fibers with phthalazone structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Dry the spinning-grade polyaryletherketone (PPEK) resin powder containing phthalazinone structure at 140°C for 48 hours in a blast drying oven, accurately weigh 53.85g of the dried PPEK powder and add it to 100g of NMP Put the split flask in an oil bath, stir and dissolve PPEK at 130°C, the stirring speed is 11r / min, the dissolution time is 3h, and prepare a PPEK spinning stock solution with a mass concentration of 35%. Put the prepared spinning stock solution in a vacuum oven for 8 hours at 80°C and a vacuum of 0.1MPa for defoaming, then transfer to the spinning cylinder, and extrude and spin at 130°C at a speed of 1mm / s; After the silk is extruded through the spinneret, it enters the hot tunnel at 325°C through an air gap of 11 cm. In the multi-stage stretching device, the thermal stretching ratio is 1, that is, no thermal stretching, the stretching temperature is 380° C., and the winding drum speed is 16.5 cm / s. The fineness of the obtained fiber is 280tex, and the ...

Embodiment 2

[0016] According to the same operating procedure as in Example 1, only the amount of PPEK powder was changed to 66.67g, and the spinning dope with a concentration of 40% was prepared; the dissolution temperature was 145°C; the extrusion speed was 2mm / s, and the extrusion temperature was 145°C; The temperature of the hot tunnel is 325°C, the hot stretching temperature is 380°C, the draw ratio is 3, and the winding drum speed is 26cm / s. The fineness of the obtained fiber is 220tex, and the fiber strength is 270MPa.

Embodiment 3

[0018] According to the same operating procedure of Example 1, only the amount of PPEK powder is changed to 100g, and the spinning stock solution with a concentration of 50% is prepared; the dissolution temperature is 170°C; the extrusion temperature is 145°C; The stretching temperature is 400° C., the draw ratio is 5, and the winding speed is 50 cm / s. The fineness of the obtained fiber is 180tex, and the fiber strength is 287MPa.

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Abstract

The invention belongs to the technical field of a high polymer material and relates to a dry spinning preparation method of polyarylether fibers with a phthalazone structure. The dry spinning preparation method comprises the following steps: preparing spinning solution; extruding and spinning; removing a solvent by a hot chimney; carrying out hot drawing treatment; winding; and the like. The spinning temperature is in the range of 40 to 220 DEG C. The distance from the hot chimney to a spinneret plate is in a range of 0 to 25cm. The temperature of the hot chimney is in a range of 200 to 360 DEG C. The drafting times are in a range of 1 to 10 times. The winding speed is in a range of 10 to 200cm / s. The hot drawing treatment temperature is in a range of 300 to 480 DEG C. The prepared polyarylether fibers with the phthalazone structure have the characteristics of high strength, high temperature resistance, radiation resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of macromolecular materials, and relates to a dry spinning preparation method of polyarylether fibers containing a phthalazinone structure. Background technique [0002] Polyaryl ether resins containing phthalazinone structure have the characteristics of high heat resistance, good solubility, high tensile strength, good wear resistance, excellent electrical properties, and radiation resistance. Performance polymers are widely used in aerospace, electronics, nuclear energy, precision machinery, vehicles, ships, petrochemical, environmental engineering and other fields. Various structural parts and products can be manufactured by injection, extrusion, molding and other thermoforming methods, and high-temperature resistant special insulating paints, coatings, functional films, etc. can also be prepared by dissolution processing; but polyarylethers containing phthalazinone structure High-performance fibers are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/66D01F6/78D01D5/04D01D1/02D01D1/10D01D5/12D01D10/02
Inventor 宾月珍袁永佳何颖源杨闻晓蹇锡高
Owner DALIAN UNIV OF TECH
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