CN109097842B - Preparation method of polymer electrostatic spinning receiving net curtain - Google Patents
Preparation method of polymer electrostatic spinning receiving net curtain Download PDFInfo
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- CN109097842B CN109097842B CN201810927519.2A CN201810927519A CN109097842B CN 109097842 B CN109097842 B CN 109097842B CN 201810927519 A CN201810927519 A CN 201810927519A CN 109097842 B CN109097842 B CN 109097842B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
Abstract
The invention discloses a preparation method of a polymer electrostatic spinning receiving net curtain, which comprises the following steps: 1): mixing the powder of the conductive substance with polymer resin slices, adding the mixture into a melt spinning machine after fully and uniformly mixing, heating the mixture to a temperature higher than the melting point of the polymer, spinning the mixture by an extrusion mechanism, and fully drafting the spun mixture to obtain polymer filaments; 2): twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a twisted polymer filament; 3): and (3) weaving the polymer filaments obtained in the step 2) on a weaving machine to form a polymer electrostatic spinning receiving net curtain. The polymer electrostatic spinning receiving net curtain prepared by the invention has good tensile mechanical property at normal temperature, has good shrinkage resistance, and is suitable for electrostatic spinning receiving.
Description
Technical Field
The invention belongs to the field of textile engineering and electrostatic spinning, and particularly relates to a preparation method of a polymer electrostatic spinning receiving screen curtain.
Technical Field
The electrostatic spinning technology is the most effective and most easily realized process for preparing nano-fibers in a laboratory at present, and the principle is that a high-voltage electrostatic field is utilized to enable polymer solution or melt trickle to obtain sufficient drafting so as to obtain nano-fibers. However, the electrospinning technology is still in the laboratory research stage at present, and there is a great distance from the industrial application. The laboratory electrostatic spinning system generally comprises three main parts, namely a spinneret, a spinning solution supply system, a fiber collecting device and a high-voltage generator. Among them, the collecting device of the fiber is a key ring of the electrospinning, which must have good conductivity in order to discharge the electric charges accumulated in the fiber assembly in time. The receiving device with good performance can collect the electrostatic spinning nano-fibers, so that the comprehensive performance of the nano-fibers is greatly influenced.
The fiber collecting device of the electrostatic spinning technology adopts a fixed metal flat plate at first, and at present, a movable metal roller or a metal disc and the like are mostly adopted, and the materials of the fiber collecting device are generally aluminum foil, iron plate, iron net, copper net, iron roller, aluminum roller and the like. The receiving device has the advantages of good conductivity, easiness in preparation and the like, but also has a plurality of defects: (1) the receiving area is small, the circulating receiving path is short, and the fibers are continuously accumulated in the thickness direction; (2) the receiving device surface usually needs an additional layer of flexible material to remove the web, which is inconvenient. The defects lead to poor continuous production capacity of electrostatic spinning equipment, and limit the industrialized popularization of the electrostatic spinning technology. Therefore, research and development of a fiber receiving device capable of continuous production are key links of the electrostatic spinning industrialization.
Chinese patent publication No. CN206799893U describes a continuous production apparatus for haze-proof window screen with electrostatic spinning collection function. The production device adopts the metal roller as the negative pole of electrostatic spinning, and simultaneously, the bottom yarn is continuously discharged through the yarn discharging device and passes through the surface of the metal roller, and the electrostatic spinning fiber is transferred. Although the method can realize the continuous receiving of the electrostatic spinning fiber, the core receiving device is still a metal roller because the bottom yarn has no electric conduction capability, and the production speed is inevitably limited by the area size of a working area of the metal roller.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method of a polymer electrostatic spinning receiving net curtain, the preparation method is easy in process control, and the prepared polymer electrostatic spinning receiving net curtain has better mechanical property and conductivity and can provide a receiving device for continuous production for an electrostatic spinning technology.
The technical scheme adopted by the invention is as follows: a method for preparing a polymer electrostatic spinning receiving screen comprises the following steps:
1) mixing the powder of the conductive substance with polymer resin slices, adding the mixture into a melt spinning machine after fully and uniformly mixing, heating the mixture to a temperature higher than the melting point of the polymer, then extruding the mixture through an extruding mechanism, and fully drafting the extrudate to obtain polymer filaments;
2) twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a twisted polymer filament;
3) and (3) weaving the polymer filaments obtained in the step 2) on a weaving machine to form a polymer electrostatic spinning receiving net curtain.
In the above method for preparing the polymer electrostatic spinning receiving screen, the polymer resin slice in the step 1) is one slice or a mixture of several slices of PET, PBT, PTT, PA6, PA66, PE, PP, PAN, PSA and PPS; the melt index of the polymer resin slice is 100-1300 g/10 min.
In the above method for preparing the polymer electrostatic spinning receiving screen, the powder of the conductive substance in the step 1) is Au, Ag, Cu, Fe, Al, Ni, Zn, Sn, SnO2ZnO, carbon black, graphite, graphene, polyacetylene, polyphenylacetylene, polythiophene, polypyrrole, polyparaphenylene and polyaniline, wherein the particle size of the powder of the conductive substance is 1-3000 nm.
In the preparation method of the polymer electrostatic spinning receiving screen curtain, the mass ratio of the polymer resin slices and the conductive substances in the step 1) is 90-99.7: 10-0.3.
In the preparation method of the polymer electrostatic spinning receiving net curtain, the extrusion mode of the extruder in the step 1) is screw extruder extrusion or high-pressure inert gas extrusion; the diameter of each spinneret orifice is 0.05-0.5 mm; the drawing mode is airflow drawing or mechanical drawing.
In the preparation method of the polymer electrostatic spinning receiving net curtain, the fineness of the polymer filament in the step 2) is 0.1-100 dtex, and the specific resistance is 10-10 dtex6 Ω·cm。
In the preparation method of the polymer electrostatic spinning receiving screen curtain, the twist of the polymer filaments in the step 2) is 0-100.
In the above method for preparing the polymer electrostatic spinning receiving screen curtain, the loom used in the step 3) is a shuttle loom, an air jet loom, a rapier loom or a gripper loom.
In the preparation method of the polymer electrostatic spinning receiving net curtain, the density of the warp yarns and the weft yarns of the polymer electrostatic spinning receiving net curtain woven in the step 3) is 100-1000 yarns/10 cm.
In the preparation method of the polymer electrostatic spinning receiving net curtain, in the step 1), the mixture of the conductive substance powder and the polymer resin slices is heated to 230-290 ℃, and the temperature is kept for 30-35min to melt the mixture.
Compared with the prior art, the invention has the beneficial effects that:
1) the electrostatic spinning receiving net curtain made of the polymer resin material has good mechanical property and good electric conductivity, so that the electrostatic spinning receiving net curtain can be used as a receiving electrode of an electrostatic spinning system, fiber deposition is facilitated, and accumulated charges are conducted to a working roller to be transferred out in time.
2) The electrostatic spinning receiving net curtain made of the polymer resin material can realize continuous circular motion under the driving of the working roller, and can receive the nano fibers spun by the electrostatic spinning machine and transfer the nano fibers to the next procedure in time, so that the continuity of electrostatic spinning is realized.
3) The electrostatic spinning receiving net curtain made of the polymer resin material, which is prepared by the invention, has the advantages that the warp yarns and the weft yarns are all polymer filaments, the hairiness is less, the tissue structure is compact, the pores are small, and the surface is uniform and flat.
4) The polymer resin electrostatic spinning receiving net curtain prepared by the invention has good dimensional stability and can adapt to the electrostatic spinning environment.
Detailed Description
The invention will be further illustrated by the following examples
Example 1
1) Weighing the dried PET resin slices and Ag powder at the mass ratio of 98:2 at room temperature, wherein the particle size of the Ag powder is 100nm, fully and uniformly mixing, feeding into a melt spinning machine, heating to 265 ℃, keeping for 30min to fully melt, and spinning by high-pressure inert gas, wherein the diameter of a spinneret orifice is 0.1 mm. After the polymer melt flows out of the spinneret orifice, the polymer melt is fully drafted under the action of mechanical drafting to obtain polymer filaments,
2) twisting the polymer filament obtained in the step 1) on a twisting machine to obtain the polymer filament with the filament twist of 13, the fineness of 0.01dtex and the specific resistance of 1000 omega cm.
3) And (3) weaving the polymer filaments obtained in the step 2) on a shuttle loom to form a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 1000 threads/10 cm.
Example 2
1) Weighing dried PPS resin slices and Au powder at room temperature, wherein the mass ratio of the dried PPS resin slices to the Au powder is 99:1, the particle size of the Au powder is 800nm, fully mixing the Au powder and the Au powder uniformly, feeding the mixture into a melt spinning machine, heating the mixture to 285 ℃ and keeping the temperature for 35min to enable the mixture to be fully melted, spinning the mixture by using high-pressure inert gas, and after polymer melt flows out of a spinneret orifice, fully drafting the polymer melt under the action of high-speed cold air to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.2 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain the polymer filament with the filament twist of 9, the fineness of 2dtex and the specific resistance of 5000 omega cm.
3) And (3) weaving the polymer filaments obtained in the step 2) on an air jet loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 900 threads/10 cm.
Example 3
1) Weighing the dried PBT resin slice and Au powder at room temperature, wherein the mass ratio is 99:1, the particle size of the Cu powder is 3000nm, fully mixing uniformly, feeding into a melt spinning machine, heating to 230 ℃, keeping for 30min to fully melt, spinning through a screw extruder, after a polymer melt flows out of a spinneret orifice, fully drafting under the action of mechanical drafting to obtain a polymer filament, and the diameter of the spinneret orifice is 0.5 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain the polymer filament with the filament twist of 15, the fineness of 15dtex and the specific resistance of 4000 ohm cm.
3) Weaving the polymer filaments obtained in the step 2) on a rapier loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 600 threads/10 cm.
Example 4
1) Weighing dried PTT resin slices and Fe powder at room temperature, wherein the mass ratio of the PTT resin slices to the Fe powder is 99.7:0.3, the particle size of the Fe powder is 1000nm, fully mixing the PTT resin slices and the Fe powder uniformly, feeding the mixture into a melt spinning machine, heating the mixture to 290 ℃ and keeping the temperature for 30min to fully melt the mixture, then spinning the mixture through a screw extruder, and after polymer melt flows out of a spinneret orifice, fully drafting the polymer melt under the action of high-speed cold air to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.3 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain the polymer filament with the filament twist of 100, the fineness of 0.1dtex and the specific resistance of 15000 omega cm.
3) And (3) weaving the polymer filaments obtained in the step 2) on an air jet loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 700 threads/10 cm.
Example 5
1) Weighing the dried PA6 resin slice and Al powder at room temperature, wherein the mass ratio is 93:7, the particle size of an Al body is 1500nm, fully mixing uniformly, feeding into a melt spinning machine, heating to 290 ℃, keeping for 30min to fully melt, then spinning through a screw extruder, after a polymer melt flows out of a spinneret orifice, fully drafting under the action of mechanical drafting to obtain a polymer filament, and the diameter of the spinneret orifice is 0.4 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 0, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) And (3) weaving the polymer filaments obtained in the step 2) on an air jet loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 450 pieces/10 cm.
Example 6
1) Weighing dried PAN resin slices and Ni powder at room temperature, wherein the mass ratio of the PAN resin slices to the Ni powder is 93:7, the particle size of the Ni powder is 2000nm, fully mixing the dried PAN resin slices and the Ni powder uniformly, feeding the mixture into a melt spinning machine, heating the mixture to 290 ℃ and keeping the temperature for 30min to enable the mixture to be fully melted, then spinning the mixture through a screw extruder, and after polymer melt flows out of a spinneret orifice, fully drafting the polymer melt under the action of high mechanical drafting to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.4 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 0, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a rapier loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 450 pieces/10 cm.
Example 7
1) Weighing the dried PA66 resin slice and the graphene powder at room temperature, wherein the mass ratio is 93:7, the particle size of the graphene powder is 1nm, fully mixing uniformly, feeding into a melt spinning machine, heating to 290 ℃, keeping for 30min for fully melting, then spinning by high-pressure inert gas, and after the polymer melt flows out of a spinneret orifice, fully drafting under the action of mechanical drafting to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.05 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 0, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the density range of warps and wefts of 450/10 cm.
Example 8
1) Weighing the dried PSA resin slice and the graphene powder at room temperature, wherein the mass ratio of the PSA resin slice to the graphene powder is 97:3, the particle size of the graphene powder is 1000nm, fully mixing the two, feeding the two into a melt spinning machine, heating to 290 ℃, keeping the temperature for 30min to fully melt the two, spinning the two by a screw extruder, and after polymer melt flows out of a spinneret orifice, fully drafting the polymer melt under the action of high-speed cold air to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.2 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain the polymer filament with the filament twist of 10, the fineness of 20dtex and the specific resistance of 1000 omega cm.
3) And (3) weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 500 threads/10 cm.
Example 9
1) Weighing the dried PSA resin slice and the carbon black powder at room temperature, wherein the mass ratio of the dried PSA resin slice to the carbon black powder is 97:3, the particle size of the carbon black powder is 1000nm, fully mixing the two, feeding the mixture into a melt spinning machine, heating the mixture to 290 ℃ and keeping the temperature for 30min to fully melt the mixture, then spinning the mixture by a screw extruder, and after the polymer melt flows out of a spinneret orifice, fully drafting the polymer melt under the action of high-speed cold air to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.2 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 10, the fineness of 20dtex and the specific resistance of 104Omega cm polymer filaments.
3) And (3) weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 500 threads/10 cm.
Example 10
1) Weighing the dried PET resin slices and polyaniline powder at room temperature, wherein the mass ratio of the PET resin slices to the polyaniline powder is 90:10, the particle size of the polyaniline powder is 2500nm, fully mixing the materials uniformly, feeding the materials into a melt spinning machine, heating to 265 ℃, keeping the temperature for 30min to fully melt the materials, spinning the materials by a screw extruder, and after polymer melt flows out of a spinneret orifice, fully drafting the polymer melt under the action of mechanical drafting to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.5 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 10, the fineness of 100dtex and the specific resistance of106Omega cm polymer filaments.
3) And (3) weaving the polymer filaments obtained in the step 2) on a shuttle loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 100 threads/10 cm.
Example 11
1) Weighing dried PTT resin slices and polyacetylene powder at room temperature, wherein the mass ratio is 92:8, the particle size of the polyacetylene powder is 1500nm, fully mixing uniformly, feeding into a melt spinning machine, heating to 290 ℃, keeping for 30min for fully melting, then spinning through a screw extruder, after polymer melt flows out of a spinneret orifice, fully drafting under the action of high-speed cold air to obtain polymer filaments, and the diameter of the spinneret orifice is 0.1 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 60, the fineness of 20dtex and the specific resistance of 105Omega cm polymer filaments.
3) And (3) weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the warp and weft density range of 550 threads/10 cm.
Example 12
1) Weighing the dried PE resin slice and the polyphenylacetylene powder at room temperature, wherein the mass ratio of the dried PE resin slice to the polyphenylacetylene powder is 93:7, fully mixing the powder and the polyphenylacetylene powder uniformly, feeding the powder into a melt spinning machine, heating to 290 ℃, keeping the temperature for 30min to fully melt the powder, spinning by using high-pressure inert gas, and after a polymer melt flows out of a spinneret orifice, fully drafting under the action of mechanical drafting to obtain a polymer filament with the diameter of the spinneret orifice being 0.4 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 50, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the density range of warps and wefts of 450/10 cm.
Example 13
1) Weighing the dried PA66 resin slice and polythiophene powder at the mass ratio of 96:4 at room temperature, feeding the polythiophene powder with the particle size of 1000nm after fully mixing uniformly into a melt spinning machine, heating to 290 ℃ and keeping for 30min for fully melting, then spinning by a screw extruder, and after polymer melt flows out of a spinneret orifice, fully drafting under the action of high-speed cold air to obtain polymer filaments with the diameter of the spinneret orifice of 0.4 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 0, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the density range of warps and wefts of 450/10 cm.
Example 14
1) Weighing the dried PP resin slices and the polypyrrole powder at room temperature, wherein the mass ratio of the PP resin slices to the polypyrrole powder is 95:5, the particle size of the polypyrrole powder is 500nm, fully mixing the PP resin slices and the polypyrrole powder uniformly, feeding the mixture into a melt spinning machine, heating to 290 ℃, keeping for 30min to enable the mixture to be fully melted, then spinning by using high-pressure inert gas, and after a polymer melt flows out of a spinneret orifice, fully drafting under the action of high-speed cold air to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.4 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 0, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the density range of warps and wefts of 450/10 cm.
Example 15
1) Weighing dried PET resin slices and poly-p-phenylene powder at room temperature, wherein the mass ratio is 97:3, the particle size of the poly-p-phenylene powder is 2100nm, fully mixing uniformly, feeding into a melt spinning machine, heating to 290 ℃, keeping for 30min to fully melt, spinning through a screw extruder, and fully drafting under the action of mechanical drafting after polymer melt flows out of a spinneret orifice to obtain polymer filaments, wherein the diameter of the spinneret orifice is 0.4 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 0, the fineness of 30dtex and the specific resistance of 105Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the density range of warps and wefts of 450/10 cm.
Example 16
1) Weighing dried PTT resin slices and polyaniline powder at room temperature, wherein the mass ratio is 99.7:0.3, the particle size of the polyaniline powder is 1500nm, fully mixing uniformly, feeding into a melt spinning machine, heating to 290 ℃, keeping for 30min to fully melt, then spinning through a screw extruder, after polymer melt flows out of a spinneret orifice, fully drafting under the action of high-speed cold air to obtain polymer filaments, and the diameter of the spinneret orifice is 0.1 mm.
2) Twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a filament with the twist of 100, the fineness of 20dtex and the specific resistance of 106Omega cm polymer filaments.
3) Weaving the polymer filaments obtained in the step 2) on a gripper loom to obtain a polymer electrostatic spinning receiving net curtain with the density range of warp and weft yarns being 600 threads/10 cm.
Claims (7)
1. A method for preparing a polymer electrostatic spinning receiving screen comprises the following steps:
1) mixing the powder of the conductive substance with polymer resin slices, adding the mixture into a melt spinning machine after fully and uniformly mixing, heating the mixture to a temperature higher than the melting point of the polymer, then extruding the mixture through an extruding mechanism, and fully drafting the extrudate to obtain polymer filaments;
the conductive material powder is Au, Ag, Cu, Fe, Al, Ni, Zn, Sn, SnO2Powder of one or two of ZnO, carbon black, graphite, graphene, polyacetylene, polyphenylacetylene, polythiophene, polypyrrole, polyparaphenylene and polyanilineThe particle size range of the conductive substance powder is 1-3000 nm;
the mass ratio of the polymer resin slices to the conductive substances is 90-99.7: 10-0.3;
2) twisting the polymer filament obtained in the step 1) on a twisting machine to obtain a twisted polymer filament;
3) and (3) weaving the polymer filaments obtained in the step 2) on a weaving machine to form a polymer electrostatic spinning receiving net curtain.
2. The method of claim 1, wherein the polymer resin chips in step 1) are one or a mixture of PET, PBT, PTT, PA6, PA66, PE, PP, PAN, PSA, PPS; the melt index of the polymer resin slice is 100-1300 g/10 min.
3. The method for preparing a polymeric electrospinning receiving screen according to claim 1, wherein the extruder in step 1) is a screw extruder or a high-pressure inert gas extruder; the diameter of each spinneret orifice is 0.05-0.5 mm; the drawing mode is high-pressure airflow drawing or mechanical drawing.
4. The method for preparing the polymer electrostatic spinning receiving net curtain as claimed in claim 1, wherein the fineness of the polymer filament in the step 2) is 0.1-100 dtex, and the specific resistance is 10-10 dtex6 Ω·cm。
5. The method of claim 1, wherein the loom used in step 3) is a shuttle loom, an air jet loom, a rapier loom or a gripper loom.
6. The method of claim 1, wherein the density of the warp and weft yarns of the woven polymer electrospun receiving screen in step 3) is 100-1000/10 cm.
7. The method as claimed in claim 1, wherein the step 1) comprises heating the mixture of the conductive material powder and the polymer resin slices to 230-290 ℃, and maintaining the temperature for 30-35min to melt the mixture.
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| CN109097842B true CN109097842B (en) | 2021-04-20 |
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| CN109881270A (en) * | 2019-04-03 | 2019-06-14 | 中国恩菲工程技术有限公司 | Melt electrostatic spinning method |
| CN110468504B (en) * | 2019-09-10 | 2021-12-07 | 赵为芳 | Flexible sensing module for dynamic monitoring of human body inductance, manufacturing process and application thereof |
| CN111495037B (en) * | 2020-04-29 | 2022-03-25 | 广东凯迪服饰有限公司 | Polyether sulfone fiber non-woven fabric composite filter material and preparation method thereof |
| CN111713771B (en) * | 2020-05-20 | 2023-12-29 | 国网吉林省电力有限公司电力科学研究院 | Antistatic protective clothing |
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