CN115369500A - Preparation method of graphene high-strength polyamide 6 fiber - Google Patents
Preparation method of graphene high-strength polyamide 6 fiber Download PDFInfo
- Publication number
- CN115369500A CN115369500A CN202210961594.7A CN202210961594A CN115369500A CN 115369500 A CN115369500 A CN 115369500A CN 202210961594 A CN202210961594 A CN 202210961594A CN 115369500 A CN115369500 A CN 115369500A
- Authority
- CN
- China
- Prior art keywords
- tows
- temperature
- strength
- fiber
- graphene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 55
- 229920002292 Nylon 6 Polymers 0.000 title claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000009987 spinning Methods 0.000 claims abstract description 45
- 238000007493 shaping process Methods 0.000 claims abstract description 28
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 239000000155 melt Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000004952 Polyamide Substances 0.000 claims abstract description 11
- 229920002647 polyamide Polymers 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000010583 slow cooling Methods 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 229920006052 Chinlon® Polymers 0.000 claims description 14
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 8
- 230000000844 anti-bacterial effect Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 235000010290 biphenyl Nutrition 0.000 claims description 6
- 239000004305 biphenyl Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 230000003115 biocidal effect Effects 0.000 abstract description 2
- 238000009730 filament winding Methods 0.000 description 12
- 239000008041 oiling agent Substances 0.000 description 12
- 239000004753 textile Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 206010019345 Heat stroke Diseases 0.000 description 1
- 208000007180 Sunstroke Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- 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
- D01D5/08—Melt spinning methods
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- 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
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a preparation method of graphene high-strength polyamide-6 fibers, which comprises the following steps: s1, putting the graphene polyamide 6 master batches and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a set proportion, and then feeding into a screw extruder; s2, carrying out high-temperature melting through a screw extruder; s3, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form high-strength nylon 6 nascent tows, and polyamide monomers are sucked by a monomer suction device in the process of spraying the tows through a slow cooling heating zone; the tows are fully cooled by a cross air blowing device and a channel in sequence; oiling the cooled tows by a double-channel oiling device; s4, feeding the oiled tows into a pre-interlacer, and then feeding the tows into a plurality of drafting assemblies for multi-stage stretching and high-temperature shaping; after the fiber is subjected to multi-stage drafting and shaping, the fiber is rolled into a silk roll through a winding device. Compared with the existing high-strength nylon 6, the high-strength nylon 6 fiber prepared by the invention has high strength and excellent performances of antibiosis, cool feeling and wear resistance.
Description
Technical Field
The invention relates to the technical field of chemical fibers, in particular to a preparation method of graphene high-strength nylon-6 fibers.
Background
With the ever-increasing construction progress of normalization and modernization of our army, military textiles have been developed to the refinement stage of the fifth stage. The military textile is used as an important component of military logistics equipment, and the modern military textile not only needs to have the inherent effects of resisting cold and preventing sunstroke, embodying military appearance, simple camouflage and the like, but also needs to be comfortable to wear, have extremely high strength and wear resistance, and have the functions of flame retardance, ultraviolet resistance, water and moisture permeability, ultraviolet resistance, static electricity resistance, cooling and the like. The nylon fiber has the most outstanding advantages that the abrasion resistance is higher than that of other chemical fibers, and the nylon fiber also has excellent performances such as alkali resistance, moisture absorption, elasticity, fatigue resistance, cool feeling and the like, and the nylon fiber inevitably replaces terylene to become a preferred material for military textiles in China due to incomparable advantages.
The PA6 has light weight, density which is only second to that of acrylic fiber and third-generation wheel, is 35 percent lighter than cotton, has strength which is 2 times higher than that of the cotton, has 10 times higher wear resistance, has better hygroscopicity than that of terylene and PA66, has particularly good rebound resilience, can be kept at minus 40 ℃, and is natural, mothproof and mildewproof. The military textile prepared from the nylon 6 fiber can greatly improve the vitality of the soldier's body, fundamentally overcomes the defects of easy burning, poor hygroscopicity, hard and brittle at low temperature, large specific gravity, uncomfortable wearing and the like caused by the application of polyester in military clothing, improves the durability and the comfort, and can reduce weight by nearly 20 percent.
The strong hydrogen bonding effect among PA6 molecules limits the improvement of the draft multiple and the fiber strength, and the strength of the fiber is lower than that of PA66, so that the requirement of military textiles on the strength cannot be met.
Disclosure of Invention
The invention aims to provide a preparation method of graphene high-strength nylon-6 fiber, which can endow the high-strength nylon-6 fiber with excellent antibacterial and cool functions.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of graphene high-strength nylon 6 fiber is characterized by comprising the following steps:
s1, putting the graphene polyamide 6 master batches and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a set proportion, and then feeding into a screw extruder;
s2, performing high-temperature melting through a screw extruder, and further uniformly mixing under the stirring of a screw;
s3, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form high-strength nylon 6 nascent tows, and polyamide monomers are sucked by a monomer suction device in the process of spraying the tows through a slow cooling heating zone; the tows are fully cooled by a cross air blowing device and a channel in sequence; oiling the cooled tows by a double-channel oiling device;
s4, feeding the oiled tows into a pre-interlacer, and then feeding the tows into a plurality of drafting assemblies for multi-stage stretching and high-temperature shaping; after multi-stage drafting and shaping, the fiber is rolled into a silk roll by a winding device.
Further, the setting ratio in step S1 is 10.
Further, in the step S2, the screw temperature is 265-285 ℃, the biphenyl temperature is 270-285 ℃, and the reduction ratio of the metering pump is 40-60.
Further, in the step S3, the temperature of the cross air blow is 17-24 ℃, the air speed is 0.3-0.65 m/S, and the relative humidity is 75%; the oiling agent is A278 type oiling agent, the concentration of the oiling agent is between 25 and 40 percent, and the oiling amount of the tow is kept between 1.0 and 1.6 percent.
Furthermore, in the step 1, the relative viscosity of the graphene polyamide 6 master batch is 2.4-3.0, the melting point is 220-225 ℃, the content of the extract is less than or equal to 0.8%, the water content is less than or equal to 500ppm, and the content of the graphene is 0.2-0.4% by weight.
Further, the relative viscosity of the polyamide slice in the step 1 is 2.44-2.47, the water content is less than or equal to 500ppm, and the melting point is 220-225 ℃.
Furthermore, the shape of the spray holes of the spinneret plate of the spinning assembly is circular.
Further, the multistage drawing and high-temperature shaping in the step S4 are further specifically implemented by feeding the oiled tow into a spinning roller set GR1, and performing a four-stage high-power drawing process: a first stage: carrying out low-temperature high-power drafting on the tows from GR1 to GR 2; and a second stage: carrying out high-temperature low-power drafting and shaping on the tows from GR2 to GR 3; and a third stage: carrying out high-temperature low-power drafting and shaping on the tow from GR3 to GR 4; fourth stage: carrying out high-temperature low-power drafting and shaping on the tows from GR4 to GR 5; . The speed of the spinning roller is 800-4500 m/min, the temperature of the spinning roller is 160-200 ℃, the drawing multiple is 3.5-5.0, and the number of turns is 4-6.5.
Furthermore, the breaking strength of the prepared fiber is 7-9 g/D, the breaking elongation is 15-22%, the antibacterial rate is not less than 95%, and the instant cool feeling is not less than 0.15.
The invention has the beneficial effects that: according to the invention, the graphene polyamide 6 master batch is adopted, and a multi-stage high-power high-temperature drafting method is adopted to improve the strength of the polyamide 6; according to the invention, the graphene polyamide 6 master batch is introduced to block the mutually connected PA6 matrixes to form a PA6 chain area, so that the flowing of the matrixes is limited, the crystallization is promoted, the strength of polyamide 6 is improved from the source, and the strength of the polyamide 6 fiber is further improved; compared with the existing high-strength nylon 6, the high-strength nylon 6 fiber prepared by the invention has the excellent performances of antibiosis, cool feeling and wear resistance besides high strength, can be widely applied to military textiles, widens the application field of the nylon 6, and has remarkable economic benefit.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides an embodiment: a preparation method of graphene high-strength nylon 6 fibers comprises the following steps:
s1, putting the graphene polyamide 6 master batches and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a set proportion, and then feeding into a screw extruder;
s2, carrying out high-temperature melting through a screw extruder, and further uniformly mixing under the stirring of a screw;
s3, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form high-strength nylon 6 nascent tows, and polyamide monomers are sucked by a monomer suction device in the process of spraying the tows through a slow cooling heating zone; the tows are fully cooled by a cross air blowing device and a channel in sequence; oiling the cooled tows by a double-channel oiling device;
s4, feeding the oiled tows into a pre-interlacer, and then feeding the tows into a plurality of drafting assemblies for multi-stage stretching and high-temperature shaping; after the fiber is subjected to multi-stage drafting and shaping, the fiber is rolled into a silk roll through a winding device.
S1, putting the graphene polyamide 6 master batches and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a set proportion, and then feeding into a screw extruder;
s2, performing high-temperature melting through a screw extruder, and further uniformly mixing under the stirring of a screw;
s3, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form high-strength nylon 6 nascent tows, and polyamide monomers are sucked by a monomer suction device in the process of spraying the tows through a slow cooling heating zone; the tows are fully cooled by a cross air blowing device and a channel in sequence; oiling the cooled tows by a double-channel oiling device;
s4, feeding the oiled tows into a pre-interlacer, and then feeding the tows into a plurality of drafting assemblies for multi-stage stretching and high-temperature shaping; after the fiber is subjected to multi-stage drafting and shaping, the fiber is rolled into a silk roll through a winding device.
Referring to fig. 1, in an embodiment of the present invention, the ratio set in step S1 is 10.
Referring to fig. 1, in the embodiment of the present invention, the screw temperature in the step S2 is 265-285 ℃, the biphenyl temperature is 270-285 ℃, and the speed reduction ratio of the metering pump is 40-60.
Referring to fig. 1, in the embodiment of the present invention, the temperature of the cross-air in step S3 is 17-24 ℃, the air speed is 0.3-0.65 m/S, and the relative humidity is 75%; the oiling oil agent is A278 type oil agent, the concentration of the oil agent is between 25 and 40 percent, and the oiling amount of the filament bundle is kept between 1.0 and 1.6 percent.
With reference to fig. 1, in the step 1, the relative viscosity of the graphene polyamide 6 masterbatch is 2.4-3.0, the melting point is 220-225 ℃, the extract content is less than or equal to 0.8%, the water content is less than or equal to 500ppm, and the graphene content is 0.2-0.4% by weight.
Referring to FIG. 1, in an embodiment of the present invention, the relative viscosity of the polyamide chips in step 1 is 2.44-2.47, the water content is less than or equal to 500ppm, and the melting point is 220-225 ℃.
Referring to fig. 1, in an embodiment of the present invention, the spinneret holes of the spinning pack are circular.
Referring to fig. 1, in an embodiment of the present invention, the multi-stage drawing and the high-temperature shaping in step S4 are further implemented by feeding the oiled filament bundle into a spinning roller set GR1, and performing a four-stage high-power drawing process: a first stage: carrying out low-temperature high-power drafting on the tows from GR1 to GR 2; and a second stage: carrying out high-temperature low-power drafting and shaping on the tows from GR2 to GR 3; and a third stage: carrying out high-temperature low-power drafting and shaping on the tows from GR3 to GR 4; fourth stage: carrying out high-temperature low-power drafting and shaping on the tows from GR4 to GR 5; . The speed of the spinning roller is 800-4500 m/min, the temperature of the spinning roller is 160-200 ℃, the drafting multiple is 3.5-5.0, and the number of turns is 4-6.5.
Referring to fig. 1, in an embodiment of the present invention, the breaking strength of the prepared fiber is 7-9 g/D, the breaking elongation is 15-22%, the antibacterial rate is greater than or equal to 95%, the instant cool feeling is greater than or equal to 0.15, and the wear-resistant times are greater than or equal to 18 ten thousand.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
Example 1
Preparation method of high-strength graphene chinlon 6 fiber
S1, placing the graphene polyamide 6 master batch and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a ratio of 10;
s2, carrying out high-temperature melting through a screw extruder, and further mixing uniformly under the stirring of a screw, wherein the temperatures of a first zone, a second zone, a third zone, a fourth zone, a fifth zone and a sixth zone of the screw extruder are respectively 250 ℃, 256 ℃, 260 ℃, 264 ℃, 265 ℃ and 265 ℃, the biphenyl temperature is 265 ℃, and the speed reduction ratio of a metering pump is 46; (ii) a
S3, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form a high-strength nylon 6 nascent filament bundle, the orientation uniformity of filament strands is improved through a slow cooling heating zone, and a monomer suction device performs polyamide monomer suction in the process of spraying the filament bundles; the tows are fully cooled by a cross air blowing device and a channel in sequence, the temperature of the cross air blowing is 22.5 ℃, the wind speed is 0.5m/s, and the relative humidity is 75 percent; oiling the cooled tows by a double-channel oiling device, wherein an A278 type oiling agent is used as the oiling agent, the concentration of the oiling agent is 32.5%, and the oiling amount of the tows is kept between 1.90%;
s4, the oiled tows enter a pre-interlacer for bundling and then enter a plurality of drafting assemblies for multi-stage drawing and high-temperature shaping, the speed of a spinning roller set GR1 is 950m/min, the temperature is 50 ℃, and the filaments are wound for 5.5 circles; the speed of the spinning roller group GR2 is 2580m/min, the temperature is 160 ℃, the filament winding is 5.5 circles, and the drawing times from GR1 to GR2 are 2.7; the speed of the spinning roller group GR3 is 3370m/min, the temperature is 170 ℃, the filament winding is carried out for 5.5 circles, and the draft times from GR2 to GR3 are 1.30; the speed of the spinning roller group GR4 is 3960m/min, the temperature is 175 ℃, the filament winding is 6.5 circles, and the draft multiple from GR3 to GR4 is 1.17; the speed of the spinning roller group GR5 is 3930m/min, the temperature is 170 ℃, the filament winding is carried out for 6.5 circles, and the draft multiple from GR4 to GR5 is 0.99; after the fiber is subjected to multi-stage drafting and shaping, the mechanical properties of the fiber in all aspects are stable, and the fiber is rolled into a shape-regular silk roll by a winding device to form the high-strength structural PA6 fiber.
The breaking strength of the prepared high-strength graphene chinlon 6 fiber is 8.58g/D, the breaking elongation is 19.02%, the antibacterial rate is 95%, the instant cooling feeling is 0.17, and the wear-resisting times are 18 ten thousand.
Example 2
Preparation method of high-strength graphene chinlon 6 fiber
S1, placing the graphene polyamide 6 master batch and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a ratio of 40;
s2, carrying out high-temperature melting through a screw extruder, further uniformly mixing under the stirring of a screw, wherein the temperatures of a first zone, a second zone, a third zone, a fourth zone, a fifth zone and a sixth zone of the screw extruder are respectively 260 ℃, 263 ℃, 264 ℃, 265 ℃, 266 ℃ and the biphenyl temperature is between 266 ℃, and the reduction ratio of a metering pump is 46;
s3, after the melt which is melted and uniformly mixed by the screw enters a spinning manifold, the melt is sprayed out through a spinneret orifice of a spinning assembly to form a high-strength nylon 6 nascent filament bundle, the orientation uniformity of filament strands is improved through a slow cooling heating area, and a monomer suction device performs polyamide monomer suction in the process of spraying the filament bundles; the tows are fully cooled by a cross air blowing device and a channel in sequence, the temperature of the cross air blowing is 22.5 ℃, the wind speed is 0.45m/s, and the relative humidity is 75 percent; oiling the cooled tows by a double-channel oiling device, wherein an A278 type oiling agent is used as the oiling agent, the concentration of the oiling agent is 32.5%, and the oiling amount on the tows is kept between 1.90%;
s4, the oiled tows enter a pre-interlacer for bundling and then enter a plurality of drafting assemblies for multi-stage drawing and high-temperature shaping, the speed of a spinning roller set GR1 is 950m/min, the temperature is 50 ℃, and the filaments are wound for 5.5 circles; the speed of the spinning roller group GR2 is 2580m/min, the temperature is 160 ℃, the filament winding is 5.5 circles, and the drawing times from GR1 to GR2 are 2.7; the speed of the spinning roller group GR3 is 3370m/min, the temperature is 170 ℃, the filament winding is carried out for 5.5 circles, and the drawing multiples from GR2 to GR3 are 1.30; the speed of the spinning roller group GR4 is 3960m/min, the temperature is 175 ℃, the filament winding is 6.5 circles, and the draft multiple from GR3 to GR4 is 1.17; the speed of the spinning roller group GR5 is 3930m/min, the temperature is 170 ℃, the filament winding is carried out for 6.5 circles, and the draft multiple from GR4 to GR5 is 0.99; after the fiber is subjected to multi-stage drafting and shaping, the mechanical properties of the fiber in all aspects are stable, and the fiber is rolled into a shape-regular silk roll by a winding device to form the high-strength structural PA6 fiber.
The breaking strength of the prepared high-strength graphene chinlon 6 fiber is 8.36g/D, the breaking elongation is 17.01%, the antibacterial rate is 97.8%, the instant cooling feeling is 0.20, and the wear resistance times are 18 ten thousand.
Example 3
Preparation method of high-strength graphene chinlon 6 fiber
S1, placing the graphene polyamide 6 master batch and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a ratio of 30;
s2, carrying out high-temperature melting through a screw extruder, and further mixing uniformly under the stirring of a screw, wherein the temperatures of a first zone, a second zone, a third zone, a fourth zone, a fifth zone and a sixth zone of the screw extruder are respectively 270 ℃, 273 ℃, 274 ℃, 275 ℃, 276 ℃ and 276 ℃, the temperature of biphenyl is 276 ℃, and the speed reduction ratio of a metering pump is 46;
s2, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form a high-strength nylon 6 nascent filament bundle, the orientation uniformity of filament strands is improved through a slow cooling heating zone, and a monomer suction device performs polyamide monomer suction in the process of spraying the filament bundles; the tows are fully cooled through a cross air blowing device and a stack in sequence, the temperature of cross air blowing is 22.5 ℃, the wind speed is 0.45m/s, and the relative humidity is 75 percent; oiling the cooled tows by a double-channel oiling device, wherein an A278 type oiling agent is used as the oiling agent, the concentration of the oiling agent is 32.5%, and the oiling amount on the tows is kept between 2.10%;
s3, the oiled tows enter a pre-interlacer for bundling and then enter a plurality of drafting assemblies for multi-stage drawing and high-temperature shaping, the speed of a spinning roller set GR1 is 950m/min, the temperature is 50 ℃, and the filaments are wound for 5.5 circles; the speed of the spinning roller group GR2 is 2580m/min, the temperature is 160 ℃, the filament winding is 5.5 circles, and the drawing times from GR1 to GR2 are 2.7; the speed of the spinning roller group GR3 is 3370m/min, the temperature is 170 ℃, the filament winding is carried out for 5.5 circles, and the drawing multiples from GR2 to GR3 are 1.30; the speed of the spinning roller group GR4 is 3960m/min, the temperature is 175 ℃, the filament winding is 6.5 circles, and the draft multiple from GR3 to GR4 is 1.17; the speed of the spinning roller group GR5 is 3930m/min, the temperature is 170 ℃, the filament winding is carried out for 6.5 circles, and the draft multiple from GR4 to GR5 is 0.99; after the fiber is subjected to multi-stage drafting and shaping, the mechanical properties of the fiber in all aspects are stable, and the fiber is rolled into a shape-regular silk roll by a winding device to form the high-strength structural PA6 fiber.
The breaking strength of the prepared high-strength graphene chinlon 6 fiber is 8.0g/D, the breaking elongation is 16.79%, the antibacterial rate is 96.4%, the instant cooling feeling is 0.21, and the wear-resisting times are 18 ten thousand times.
The batching machine, the screw extruder, the spinning manifold, the slow cooling heating jacket, the monomer suction device, the side blowing device, the channel, the multi-channel drafting assembly, the winding machine, the double-channel oiling device and the pre-networking device in the invention are all the prior art, and the details are not described herein, as will be clear to those skilled in the art. The batching machine is an ABM-C-ABC automatic batching machine; the screw extruder, the spinning box body, the slow cooling heating sleeve, the monomer suction device, the side blowing device, the channel, the multi-channel drafting assembly and the winding machine are manufactured by Beijing Zhongli System engineering technology Limited, and the utility model discloses a patent number of CN210237858; the double-channel oiling device is manufactured by Beijing Zhongli manufacturing engineering technology Limited, and the utility model discloses a patent number is CN212640675U.
The above description is only a preferred embodiment of the present invention, and should not be construed as limiting the present invention, and all equivalent variations and modifications made in the claims of the present invention should be covered by the present invention.
Claims (9)
1. A preparation method of graphene high-strength nylon 6 fiber is characterized by comprising the following steps:
s1, putting the graphene polyamide 6 master batches and the polyamide 6 slices into a batching machine, metering by the batching machine, mixing in a set proportion, and then feeding into a screw extruder;
s2, performing high-temperature melting through a screw extruder, and further uniformly mixing under the stirring of a screw;
s3, after the melt which is melted and uniformly mixed by the screw enters a spinning box body, the melt is sprayed out through a spinneret orifice of a spinning assembly to form high-strength nylon 6 nascent tows, and polyamide monomers are sucked by a monomer suction device in the process of spraying the tows through a slow cooling heating zone; the tows are fully cooled by a cross air blowing device and a channel in sequence; oiling the cooled tows by a double-channel oiling device;
s4, feeding the oiled tows into a pre-interlacer, and then feeding the tows into a plurality of drafting assemblies for multi-stage drawing and high-temperature shaping; after the fiber is subjected to multi-stage drafting and shaping, the fiber is rolled into a silk roll through a winding device.
2. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: the setting ratio in the step S1 is 10 to 100.
3. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: in the step S2, the temperature of the screw is 265-285 ℃, the temperature of the biphenyl is 270-285 ℃, and the reduction ratio of the metering pump is 40-60.
4. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: in the step S3, the temperature of the cross air is 17-24 ℃, the air speed is 0.3-0.65 m/S, and the relative humidity is 75%; the oiling oil agent is A278 type oil agent, the concentration of the oil agent is between 25 and 40 percent, and the oiling amount of the filament bundle is kept between 1.0 and 1.6 percent.
5. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: the relative viscosity of the graphene polyamide 6 master batch in the step 1 is 2.4-3.0, the melting point is 220-225 ℃, the content of the extract is less than or equal to 0.8%, the water content is less than or equal to 500ppm, and the content of the graphene is 0.2-0.4 wt%.
6. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: in the step 1, the relative viscosity of the polyamide slice is 2.44-2.47, the water content is less than or equal to 500ppm, and the melting point is 220-225 ℃.
7. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: the shape of the spray holes of the spinneret plate of the spinning assembly is circular.
8. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: the multistage drawing and high-temperature shaping in the step S4 are further specifically implemented by feeding oiled tows into a spinning roller set GR1, and performing a four-stage high-power drawing process: a first stage: carrying out low-temperature high-power drafting on the tows from GR1 to GR 2; and a second stage: carrying out high-temperature low-power drafting and shaping on the tows from GR2 to GR 3; and a third stage: carrying out high-temperature low-power drafting and shaping on the tows from GR3 to GR 4; fourth stage: carrying out high-temperature low-power drafting and shaping on the tows from GR4 to GR 5; . The speed of the spinning roller is 800-4500 m/min, the temperature of the spinning roller is 160-200 ℃, the drafting multiple is 3.5-5.0, and the number of turns is 4-6.5.
9. The preparation method of the graphene high-strength chinlon 6 fiber according to claim 1, characterized by comprising the following steps of: the breaking strength of the prepared fiber is 7-9 g/D, the breaking elongation is 15-22%, the antibacterial rate is more than or equal to 95%, and the instant cool feeling is more than or equal to 0.15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210961594.7A CN115369500A (en) | 2022-08-11 | 2022-08-11 | Preparation method of graphene high-strength polyamide 6 fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210961594.7A CN115369500A (en) | 2022-08-11 | 2022-08-11 | Preparation method of graphene high-strength polyamide 6 fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115369500A true CN115369500A (en) | 2022-11-22 |
Family
ID=84066318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210961594.7A Pending CN115369500A (en) | 2022-08-11 | 2022-08-11 | Preparation method of graphene high-strength polyamide 6 fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115369500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118241326A (en) * | 2024-04-02 | 2024-06-25 | 浙江佳宝聚酯有限公司 | High-wool-like and low-wool-like mixed spinning process of polyester wool-like fibers |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676664A (en) * | 2016-08-31 | 2017-05-17 | 浙江金旗新材料科技有限公司 | Flame-retardant and wear-resistant type chinlon 6 pre-oriented yarn |
| CN106835333A (en) * | 2016-12-26 | 2017-06-13 | 伟星集团有限公司 | Graphene/nylon 6 fiber and preparation method with fire-retardant and uvioresistant performance |
| CN107313126A (en) * | 2017-06-30 | 2017-11-03 | 福建锦江科技有限公司 | A kind of method that the fiber of graphene modified nylon 6 is produced by high speed spinning |
| CN110129914A (en) * | 2019-05-27 | 2019-08-16 | 北京中丽制机工程技术有限公司 | A kind of production method of the female silk fiber of polyamide fibre 6 |
| US10968340B1 (en) * | 2017-01-31 | 2021-04-06 | Eaton Intelligent Power Limited | Electrically conductive, high strength, high temperature polymer composite for additive manufacturing |
| CN114276676A (en) * | 2022-02-16 | 2022-04-05 | 福建永荣锦江股份有限公司 | Preparation method of high-strength nylon-6 master batch and method for preparing high-strength nylon-6 fiber |
-
2022
- 2022-08-11 CN CN202210961594.7A patent/CN115369500A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676664A (en) * | 2016-08-31 | 2017-05-17 | 浙江金旗新材料科技有限公司 | Flame-retardant and wear-resistant type chinlon 6 pre-oriented yarn |
| CN106835333A (en) * | 2016-12-26 | 2017-06-13 | 伟星集团有限公司 | Graphene/nylon 6 fiber and preparation method with fire-retardant and uvioresistant performance |
| US10968340B1 (en) * | 2017-01-31 | 2021-04-06 | Eaton Intelligent Power Limited | Electrically conductive, high strength, high temperature polymer composite for additive manufacturing |
| CN107313126A (en) * | 2017-06-30 | 2017-11-03 | 福建锦江科技有限公司 | A kind of method that the fiber of graphene modified nylon 6 is produced by high speed spinning |
| CN110129914A (en) * | 2019-05-27 | 2019-08-16 | 北京中丽制机工程技术有限公司 | A kind of production method of the female silk fiber of polyamide fibre 6 |
| CN114276676A (en) * | 2022-02-16 | 2022-04-05 | 福建永荣锦江股份有限公司 | Preparation method of high-strength nylon-6 master batch and method for preparing high-strength nylon-6 fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118241326A (en) * | 2024-04-02 | 2024-06-25 | 浙江佳宝聚酯有限公司 | High-wool-like and low-wool-like mixed spinning process of polyester wool-like fibers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109487352B (en) | Graphene polylactic acid bi-component composite fiber and preparation method and equipment thereof | |
| CN112095163B (en) | Method and equipment for preparing bio-based polyamide short fiber through integrated spinning and drafting | |
| CN112501702B (en) | Functional polyamide 56 filament and preparation method thereof | |
| CN114276676B (en) | Preparation method of high-strength nylon 6 master batch and method for preparing high-strength nylon 6 fiber | |
| CN105200550B (en) | A kind of low melting point antibacterial special polyester monofilament and its processing method | |
| CN110552096B (en) | One-step production process of high-strength high-shrinkage combined filament yarn | |
| CN104060343B (en) | Fine-denier and super fine denier nylon-6 fiber and manufacture method thereof | |
| CN117568943B (en) | A forming device, method and use of auxetic colored fiber | |
| CN108441974B (en) | A kind of production method of superhigh intensity 66 nylon fiber | |
| CN118241326B (en) | High-wool-like and low-wool-like mixed spinning process of polyester wool-like fibers | |
| CN113445142A (en) | Production method of cool feeling cable elastic fiber | |
| CN113529200A (en) | Preparation method of anti-cutting polyethylene fiber | |
| CN111441117B (en) | High-strength carbonized flame-retardant yarn | |
| CN113481638A (en) | Preparation method of nylon wool-like yarn with crystal fine glittering luster | |
| CN109306543A (en) | A kind of production method of antibacterial nylon fiber | |
| CN115323520A (en) | Production method of high-strength ultralow-shrinkage polyamide 66 high-denier fiber | |
| CN115369500A (en) | Preparation method of graphene high-strength polyamide 6 fiber | |
| CN103590140B (en) | A kind of imitative multiple polyisocyanate of linen look is combined short fibre and manufacture method thereof | |
| CN110067032A (en) | The preparation method of trilobal cross polylactic acid pattern fiber | |
| CN1126832C (en) | Silk-like material and its preparing process | |
| CN109385715A (en) | A kind of high-elastic super fine denier brocade ammonia air-coating silk of full-dull | |
| CN111850763A (en) | Nylon-spandex magnetic therapy health-care air-coated yarn | |
| CN112095160B (en) | Preparation method of functionalized polyamide 56 short fiber | |
| CN111647962A (en) | Production method of fine denier high-strength nylon 6 fiber for military uniform | |
| CN1068640C (en) | Process for producing fine denier polypropylene fiber short-staple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221122 |