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Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof

A technology of polyethylene naphthalate and polyphenylene sulfide, applied in the direction of single-component polyester rayon, conjugated synthetic polymer rayon, rayon manufacturing, etc., can solve the problem of PPS fiber Expensive and other issues, to achieve the effect of increasing production efficiency, broad application prospects, and reducing production costs

Inactive Publication Date: 2012-08-22
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But pure PPS fiber is more expensive

Method used

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  • Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof
  • Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof
  • Polyethylene naphthalate(PEN)/polyphenylene sulfide (PPS) blend filament and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Vacuum-dry the polyethylene naphthalate slices at 220°C for 6 hours, and dry the polyphenylene sulfide slices at 220°C for 4 hours;

[0025] (2) The above-mentioned two kinds of dry slices are sent into a twin-screw blending extruder according to the weight percentage of polyethylene naphthalate at 95%, and the precursors are blended and melt-spun, and the melting temperature is 268° C. , the time is 30min;

[0026] (3) Draw the above-mentioned raw silk, the drawing temperature is 220°C, the drawing ratio is 3, and finally it is packaged at 1000m / min to obtain the polyethylene naphthalate / polyphenylene sulfide blend length Silk.

Embodiment 2

[0028] (1) Vacuum-dry the polyethylene naphthalate slices at 220°C for 6 hours, and dry the polyphenylene sulfide slices at 220°C for 4 hours;

[0029] (2) The above-mentioned two kinds of dry chips are sent into a twin-screw blending extruder according to the weight percentage of polyethylene naphthalate at 97%, and blended and melt-spun to make precursors, and the melting temperature is 285° C. , the time is 60min;

[0030] (3) Draw the above-mentioned raw silk, the drawing temperature is 245°C, the drawing ratio is 5, and finally it is packaged at 1500m / min to obtain the polyethylene naphthalate / polyphenylene sulfide blend length Silk.

[0031] The specific process parameters are shown in Table 1:

[0032] The concrete process parameter of table 1 embodiment 1 and 2

[0033]

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Abstract

The invention relates to a PEN / PPS blend filament and a preparation method thereof. The blend filament comprises the PEN and the PPS, wherein weight percentage of the PEN is 0.1-99.9%. The preparation method includes subjecting PEN slices to a vacuum drying at a temperature of 220 DEG C for 6 hours and subjecting PPS slices to a drying at 220 DEG C for 4 hours; sending the two dried splices to a twin-screw blend extruder to spin protofilament through blend fusion; and drafting the protofilament, packaging and obtaining the blend filament. The PEN / PPS blend filament and the preparation method thereof have the advantages that certain performances of polyester are improved through physical methods, temperature resistance, strength and the like of the filament are improved to a certain extent, production cost is reduced, productivity effectiveness is improved, and bright application prospect is provided.

Description

technical field [0001] The invention belongs to the field of blended filament and its preparation, in particular to a polyethylene naphthalate / polyphenylene sulfide blended filament and a preparation method thereof. Background technique [0002] Polyphenylene sulfide (PPS) fiber is one of the important raw materials for industrial textiles because it has excellent properties. PPS fiber has excellent temperature resistance, corrosion resistance, flame retardancy, and good mechanical properties. Once PPS fiber came out, it immediately attracted the attention of various countries, especially as an environmentally friendly filter material. Its good temperature resistance, thermal stability and high limiting oxygen index make it an irreplaceable material for gas-phase filtration and liquid-phase filtration. Needle-punched filter felts made of PPS fibers are widely used in high-temperature flue gas dust removal and filtration of coal-fired boilers such as power generation, steel, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/16D01F6/92D01F6/94D01F1/10
Inventor 张庭庭余燕平鲁瑶
Owner DONGHUA UNIV
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