Polyetherimide/polyphenylene sulfide composite filament preparation method

A technology of polyetherimide and polyphenylene sulfide, which is applied in the direction of conjugated synthetic polymer man-made filament, filament/thread forming, stretch spinning, etc., to achieve the effect of reducing production cost

Active Publication Date: 2013-03-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If PEI can be introduced into polyphenylene sulfide (PPS) synthetic fibers, the synthetic fibers obtained can have the

Method used

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  • Polyetherimide/polyphenylene sulfide composite filament preparation method
  • Polyetherimide/polyphenylene sulfide composite filament preparation method
  • Polyetherimide/polyphenylene sulfide composite filament preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: PEI and PPS two raw material slices were dried at 140°C respectively, and then melted and extruded by a screw extruder to form PEI melt and PPS melt; the PEI melt and PPS melt were then Metering through the metering pump respectively; the measured PEI melt and PPS melt are mixed to form a mixed melt, and then extruded from the spinneret hole of the spinning box to form a filamentous melt under the action of the spinning box At this time, the temperature of the spinning box is 340°C; the above-mentioned filamentous melt is extruded from the spinning hole of the spinning box, solidified and formed under the cooling of the side blowing, and then oiled and wound on the winding head. High-speed winding forming, at this time, the speed of the winding head is 3000m / min, and finally after being drawn by the FDF100 parallel drawing machine, PEI / PPS parallel composite filaments are obtained.

[0024] In the above method, the speed of the metering pump for measuring the...

Embodiment 2

[0035] Example 2: PEI and PPS two raw material slices were dried at 160°C and 170°C respectively, and then melted and extruded by a screw extruder to form PEI melt and PPS melt; the PEI melt and The PPS melt is metered through the metering pump respectively; the metered PEI melt and PPS melt are mixed to form a mixed melt, which is extruded from the spinneret hole of the spinning box under the action of the spinning box to form a Filamentous melt, at this time the temperature of the spinning box is 320°C; after the above-mentioned filamentous melt is extruded from the spinning hole of the spinning box, it is solidified and formed under the cooling of side blowing, and then oiled, and High-speed winding forming on the winding head. At this time, the speed of the winding head is 3000m / min. Finally, the above-mentioned composite spinning is drawn by the FDF100 parallel drafting machine to obtain PEI / PPS skin-core composite filaments.

[0036] In the above method, the rotating spe...

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Abstract

The invention discloses a PEI/PPS composite filament preparation method, which comprises the following steps: slicing two raw materials of PEI and PPS and respectively drying, respectively performing melted extrusion through a screw extruder and discharging to form a PEI melt and a PPS melt; respectively metering the PEI melt and the PPS melt by a metering pump; mixing to form a mixed melt, extruding a filamentous melt from a spinneret hole of a spinning casing under the effect of the spinning casing, extruding the filamentous melt from the spinneret hole of the spinning casing, cooling under side blowing wind and solidifying and then forming, and then oiling, performing winding formation with high speed on a winding head, and drafting by a parallel drafting machine to obtain the PEI/PPS composite filament. The fabric prepared by the obtained PEI/PPS composite filament can be used for a protective clothing under the special work environment such as fire-fighting, high temperature or chemical attack, the production cost is low, and the obtained PEI/PPS composite filament can be used for the filtering materials in the fields such as garbage burning factories, and has high strength and oxidative resistance.

Description

technical field [0001] The invention relates to the field of synthetic fibers, in particular to a method for preparing polyetherimide / polyphenylene sulfide high polymer composite filaments. Background technique [0002] Polyetherimide (PEI) was successfully developed by the American GE company in 1970 and realized industrial production in 1982. Compared with other aromatic polyimides (PI), PEI is a thermoplastic PI with lower cost and higher output. PEI is a non-crystalline high polymer, which is similar to other PI and aromatic heterocyclic polymers in terms of mechanical properties, long-term heat resistance, dimensional stability and chemical stability at room temperature and high temperature, but its excellent molding The processing performance is unmatched by the latter. It has low melt viscosity and good fluidity similar to polycarbonate, can be manufactured by typical thermoplastic melt processing technology and equipment, and has outstanding flame retardancy and lo...

Claims

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Application Information

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IPC IPC(8): D01F8/16D01D5/092D01D5/12
Inventor 钱明球闻秀银陈海燕
Owner CHINA PETROLEUM & CHEM CORP
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