Method for producing high temperature resistant pes fiber by melting method

A technology of high temperature resistance and melting method, applied in the directions of melt spinning method, fiber processing, fiber chemical characteristics, etc., can solve the problems of high cost, inability to realize mass production of PES fibers, complex process, etc., and achieve low manufacturing cost and reduce heat. Loss, the effect of simple process

Active Publication Date: 2015-09-23
CTA HIGH TECH FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the shortcomings of the prior art, such as complex process, high cost, and inability to realize mass production of PES fibers, the present invention provides a new method for producing high-temperature-resistant PES fibers by melting method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Modified masterbatch: produced by Holland Color Company, model: W-121108, modified masterbatch drying conditions: dry hot air ventilation and drying, dry air dew point less than -80 ℃, temperature 130 ℃, drying time 4-5 hours. The moisture content of the prepared dry masterbatch: 50PPM.

[0035] Slice: the slice of model E1010 produced by BASF, Germany.

[0036] Slice drying conditions: maintain a vacuum of 0.1MPa, dry at a temperature of 170°C, and dry for 15 hours; the moisture content of the prepared dry slices: 63PPM.

[0037] The dry masterbatch and the dry chips are jointly fed into a counter-rotating twin-screw extruder for melt extrusion to obtain a melt, wherein the added amount of the dry masterbatch is 1.5wt%. Melt spinning: temperature of screw zone 1: 350℃, temperature of screw zone 2: 355℃, temperature of screw zone 3: 360℃, temperature of screw zone 4: 380℃, temperature of screw zone 5: 380℃, box temperature: 380℃ .

[0038] Filtered pressure: 20MPa, com...

Embodiment 2

[0046] Modified masterbatch: produced by Holland Color Company, model: W-121108, modified masterbatch drying conditions: dry hot air ventilation and drying, dry air dew point less than -80 ℃, temperature 130 ℃, drying time 4-5 hours. The moisture content of the prepared dry masterbatch: 50PPM.

[0047] Slice: the slice of model E1010 produced by BASF, Germany.

[0048] Slice drying conditions: maintain a vacuum of 0.1 MPa, dry at a temperature of 180°C, and dry for 13 hours; the moisture content of the prepared dry slices: 60PPM.

[0049] The dry masterbatch and the dry chips are jointly fed into a counter-rotating twin-screw extruder for melt extrusion to obtain a melt, wherein the added amount of the dry masterbatch is 1.8wt%. Melt spinning: temperature in the first zone of the screw: 360°C, temperature in the second zone of the screw: 365°C, temperature in the third zone of the screw: 370°C, temperature in the fourth zone of the screw: 390°C, temperature in the fifth zone ...

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Abstract

The invention relates to the field of production of chemical fibers, and discloses a method for producing high-temperature-resistant PES (polyether sulfone) fibers by using a melting method. The method specifically comprises a slice drying step, a melt spinning step, a cooling step, a drawing step and a winding step. The method has the advantages that a process flow is simplified, the method is low in production cost, and has higher application value, and the process problems of PES fiber production are solved.

Description

technical field [0001] The invention relates to the field of chemical fiber manufacturing, in particular to a method for producing high-temperature-resistant PES fibers by a melting method. Background technique [0002] High temperature flame retardant fiber is an important strategic high-performance fiber material, widely used in military equipment and protective products because of its good thermal stability, flame retardancy, electrical insulation, chemical stability and radiation resistance , filter materials, electrical insulation materials, friction sealing materials, various industrial fabrics, high temperature resistant paper and aerospace materials, weapons and equipment and other fields, this kind of fiber has a wide range of applications, a large demand, and a broad market prospect. will play an increasingly important role. [0003] At present, all countries in the world are in urgent need of intrinsically flame-retardant fibers with good high-temperature resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/08D01D5/088D01D10/02D01F1/04D01F6/88
Inventor 占海华许志强王春梅詹莹韬
Owner CTA HIGH TECH FIBER
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