CN111909410A - Composite nylon, preparation method thereof and spinning device - Google Patents

Composite nylon, preparation method thereof and spinning device Download PDF

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Publication number
CN111909410A
CN111909410A CN202010732459.6A CN202010732459A CN111909410A CN 111909410 A CN111909410 A CN 111909410A CN 202010732459 A CN202010732459 A CN 202010732459A CN 111909410 A CN111909410 A CN 111909410A
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nylon
spinning
composite
orderly
nylon body
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CN111909410B (en
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刘畅
李翀
吕锋
刘艳国
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Zhangjiagang Institute Of Technology Nanjing University Of Technology
Jiangsu Bolin Plastics Co ltd
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Zhangjiagang Institute Of Technology Nanjing University Of Technology
Jiangsu Bolin Plastics Co ltd
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Publication of CN111909410A publication Critical patent/CN111909410A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/08—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
    • D01D11/00—Other features of manufacture
    • D01D11/06—Coating with spinning solutions or melts
    • 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
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/04—Carriers or supports for textile materials to be treated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses composite nylon, a preparation method thereof and a spinning device. The composite nylon comprises: the spinning solution is spun on the surface of the nylon body, and whiskers which are orderly arranged are formed on the surface of the nylon body after heat treatment and cooling. The spinning solution comprises: nylon particles, filler, thickening agent and solvent. The composite nylon disclosed by the invention has the advantages that the filling material whiskers are orderly arranged on the surface of the composite nylon, the friction performance is stable, the whiskers on the surface of the nylon are not easy to fall off, and the service life of a product is long.

Description

Composite nylon, preparation method thereof and spinning device
Technical Field
The invention relates to the technical field of nylon manufacturing, in particular to composite nylon, a preparation method thereof and a spinning device.
Background
Nylon is widely used in machinery, chemical industry, instruments, automobiles and other industries because of its advantages of wear resistance, oil resistance, corrosion resistance, light weight, good mechanical strength and the like. In recent years, various industrial fields have made higher demands on mechanical strength and abrasion resistance of nylon, and therefore, those skilled in the art have tried to add different kinds and proportions of filler materials to nylon to prepare reinforced composite materials with more excellent properties.
At present, two methods of blending modification and copolymerization modification are mainly adopted for preparing the composite nylon material, wherein the method for preparing the composite nylon by blending modification has a simpler process, and is mainly characterized in that one or more filling materials with a reinforcing function are mixed with nylon particles, and then the nylon is produced by an extrusion process. Although the method has been widely applied in actual production, the following technical problems still exist: 1) the composite nylon material produced by blending modification can obviously improve the mechanical property only by adding a filling material with a higher proportion, so that the cost of raw materials is increased; 2) due to the randomness of raw materials during mixing, the distribution of the filling materials in the nylon is disordered, and the friction performance of the composite nylon produced by the method is not easy to control.
Disclosure of Invention
In order to solve the problems in the prior art, the embodiment of the invention provides composite nylon, a preparation method thereof and a spinning device. The technical scheme is as follows:
in a first aspect, there is provided a composite nylon comprising:
the nylon body is provided with a nylon body,
and spinning the spinning solution on the surface of the nylon body, and forming whiskers which are orderly arranged on the surface of the nylon body after heat treatment and cooling.
Further, the spinning solution comprises: nylon particles, filler, thickening agent and solvent.
Further, the content of the nylon particles is 1-10 wt%; the content of the filler is 0.1-50 wt%; the content of the thickening agent is 0.1-5 wt%, and the content of the solvent is 65-98.8 wt%.
Further, the filler is: potassium titanate whiskers, the potassium titanate whiskers having a diameter of 0.1 to 10 μm and a length of 1 to 1000 μm.
Further, the thickening agent is one or more of polyurethane, sodium polyacrylate, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide;
the solvent is one or more of phenol, hydrochloric acid, formic acid and acetic acid.
In a second aspect, there is provided a method for preparing a composite nylon, the method comprising:
at least uniformly mixing nylon particles, a filling material, a thickening agent and a solvent to form a spinning solution;
orderly spinning on the surface of the nylon body by utilizing the spinning to obtain spinning nylon;
and carrying out heat treatment on the spinning nylon, and cooling to obtain the composite nylon.
Further, the spinning is orderly carried out on the surface of the nylon body by using the spinning solution to obtain spinning nylon, which comprises the following steps:
and forming liquid spinning bundles by using the spinning solution, wherein the nylon body orderly receives the liquid spinning bundles according to a preset direction, and the liquid spinning bundles form spinning fibers attached to the surface of the nylon body.
Further, the spinning is orderly carried out on the surface of the nylon body by using the spinning solution to obtain spinning nylon, which comprises the following steps:
spinning at different angles on the surface of the nylon body by using the spinning solution to form a spinning grid layer on the surface of the nylon body.
Further, the content of the nylon particles is 1-10 wt%; the content of the filler is 0.1-50 wt%; the content of the thickening agent is 0.1-5 wt%, and the content of the solvent is 65-98.8 wt%.
Further, the filler is: potassium titanate whiskers, the potassium titanate whiskers having a diameter of 0.1 to 10 μm and a length of 1 to 1000 μm.
Further, the thickening agent is one or more of polyurethane, sodium polyacrylate, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide;
the solvent is one or more of phenol, hydrochloric acid, formic acid and acetic acid.
In a third aspect, there is provided a spinning apparatus, the apparatus comprising:
a spinning nozzle that discharges a spinning solution to form a liquid spun yarn bundle;
and the positioning device is used for fixing the nylon body, so that the nylon body receives the liquid spinning tows to form spinning fibers attached to the surface of the nylon body.
Further, the spinning nozzle is connected with a micro-flow pump, and the micro-flow pump supplies the spinning solution to the spinning nozzle;
the positioning device is connected with the moving device, and the moving device drives the positioning device to move, so that the spinning nozzle performs spinning at different angles on the surface of the nylon body to form a spinning grid layer.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. the composite nylon disclosed by the invention has the advantages that the filling material whiskers are orderly distributed on the surface of the composite nylon, the friction performance is stable, the whiskers on the surface of the nylon are not easy to fall off, and the service life of a product is long;
2. the composite nylon using the potassium titanate whisker as the filler disclosed by the invention has higher friction coefficient, is used for manufacturing the brake pad, and is beneficial to improving the resistance of the brake pad and improving the braking performance;
3. the preparation method of the composite nylon disclosed by the invention can orderly arrange the filling material whiskers on the surface of the nylon, and the whiskers on the surface of the nylon are not easy to fall off, thereby being beneficial to controlling the friction performance of the nylon;
4. the spinning device disclosed by the invention can realize the preparation method of the composite nylon provided by the invention, and the composite nylon with orderly arranged whiskers is prepared.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method for preparing a composite nylon provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a spinning apparatus provided in an embodiment of the present invention;
FIG. 3 is a graph comparing the coefficient of friction of experimental and comparative samples provided in examples of the present invention;
FIG. 4 is a scanning electron micrograph of the structures of experimental and comparative samples provided by examples of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As nylon is widely used in various industrial fields, its requirements for friction performance of nylon are different, for example: nylon materials for brake pads require nylon to have a high coefficient of friction, while nylon materials for textile fabrics require nylon to have a low coefficient of friction. The skilled person finds that the random distribution of the filler in the nylon easily causes the phenomenon that the filler fiber is damaged, displaced or even falls off in the nylon friction process, so that the friction performance of the nylon is not easy to control.
The embodiment of the invention aims to solve the problems that the blending modification process is adopted to prepare the composite nylon: the material cost is high due to the large requirement of the filling material amount; the problem that the friction performance of nylon is not easy to control due to disordered distribution of fillers in nylon is solved, the composite nylon and the preparation method and the spinning device thereof are provided, and the specific technical scheme is as follows:
example 1
A composite nylon comprising:
the nylon body is provided with a nylon body,
and spinning the spinning solution on the surface of the nylon body, and forming whiskers which are orderly arranged on the surface of the nylon body after heat treatment and cooling.
The spinning solution comprises: nylon particles, filler, thickening agent and solvent.
The nylon particles are 1-10 wt%, the filler is 0.1-50 wt%, the thickener is 0.1-5 wt%, and the solvent is 65-98.8 wt%.
The filler may be: potassium carbonate whisker, glass fiber, carbon fiber, aramid fiber, polyolefin containing hydrocarbon group or elastomer thereof, and the like. Preferred fillers are: potassium titanate whisker, the diameter of the potassium titanate whisker is 0.1-10 μm, and the length is 1-1000 μm.
As described above, the nylon particles and nylon bodies may be: one or more of nylon materials such as PA66, PA6, PA1010, PA11, PA12, PA610 and PA 612.
The thickener is one or more of polyurethane, sodium polyacrylate, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide.
The solvent is one or more of phenol, hydrochloric acid, formic acid and acetic acid.
The solvent is one or more of phenol, hydrochloric acid, formic acid and acetic acid.
It should be noted that: the nylon body can be pure nylon material which is not compounded, and can also be composite nylon.
Example 2
As shown in fig. 1, based on the composite nylon disclosed in example 1, this example provides a preparation method of composite nylon, including:
s1, at least uniformly mixing the nylon particles, the filling material, the thickening agent and the solvent to form spinning solution;
s2, orderly spinning on the surface of the nylon body by using the spinning solution to obtain spinning nylon;
and S3, carrying out heat treatment on the spinning nylon, and cooling to obtain the composite nylon.
Preferably, step S2 is specifically:
the spinning solution is utilized to form liquid spinning tows, the nylon body receives the liquid spinning tows, and the liquid spinning tows form spinning fibers attached to the surface of the nylon body.
Above, step S2 further includes:
spinning at different angles is carried out on the surface of the nylon body by using the spinning solution, and a spinning grid layer is formed on the surface of the nylon body.
Specifically, in step S2, the spinning solution may be sequentially sprayed on the surface of the nylon body according to a predetermined direction, or the nylon body may be moved according to a predetermined direction to sequentially receive the spinning solution. The preset direction may be a plurality of different directions, orderly, means spinning along different preset directions according to a preset sequence, for example: when the nylon body is cylindrical, the preset directions are the axial direction and the radial direction of the nylon body, or the transverse direction and the longitudinal direction relative to the section of the cylindrical nylon body; orderly means that: the liquid spinning tows axially move relative to the nylon body and then radially move relative to the nylon body, or the liquid spinning tows transversely move relative to the section of the nylon body and then longitudinally move relative to the section of the nylon body.
The content of the nylon particles is 1-10 wt%; the content of the filler is 0.1-50 wt%; 0.1-5 wt% of thickening agent and 65-98.8 wt% of solvent.
The filling material is as follows: potassium titanate whisker, the diameter of the potassium titanate whisker is 0.1-10 μm, and the length is 1-1000 μm.
The potassium titanate whisker can effectively improve the friction coefficient of the nylon surface, has high strength and can bear high pressure.
As described above, the nylon particles and nylon bodies may be: one or more of nylon materials such as PA66, PA6, PA1010, PA11, PA12, PA610 and PA 612.
The thickening agent is one or more of polyurethane, sodium polyacrylate, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone and polyethylene oxide;
the solvent is one or more of phenol, hydrochloric acid, formic acid and acetic acid.
The temperature of the heat treatment of the spinning nylon in the step S3 is 150-300 ℃.
It should be noted that: the nylon body can be pure nylon material which is not compounded, and can also be composite nylon.
The specific principle of the preparation method disclosed by the embodiment of the invention is as follows:
the spinning solution comprises: nylon particles, filling material, thickening agent and solvent. Wherein the nylon particles can play a role in bonding; the filling material can play a role in adjusting the characteristics of the nylon; the solvent is mainly used for dissolving the nylon particles and the filling material to form a solution; the thickening agent mainly plays a role in increasing viscosity. The spinning solution disclosed by the embodiment of the invention has adhesion and can be adhered to the surface of a nylon body, the friction property of nylon can be adjusted by the spinning solution doped with the filler, and the friction coefficient of nylon can be increased by adding the potassium titanate whisker as the filler in the embodiment of the invention. The spinning solution is orderly spun on the surface of the nylon body, so that potassium titanate whiskers are orderly arranged on the surface of the nylon body, a solvent in the spinning solution is evaporated after heat treatment, and the filler whiskers are attached to the surface of the nylon body and are orderly discharged.
Example 3
As shown in fig. 2, a spinning apparatus includes:
a spinning nozzle 201 that discharges a spinning solution to form a liquid spun yarn bundle;
and the positioning device 202 fixes the nylon body, so that the nylon body receives the liquid spinning tows to form spinning fibers attached to the surface of the nylon body.
The spinning nozzle 201 is connected to a micro flow pump 203, and the micro flow pump 203 supplies the spinning solution to the spinning nozzle 201.
The positioning device 202 is connected with the moving device 204, and the moving device 204 drives the positioning device 202 to move, so that the spinning nozzle 201 performs spinning at different angles on the surface of the nylon body to form a spinning grid layer.
Specifically, the mobile device includes: the rotating device can be driven by a motor, and the translation device can be composed of a lead screw transmission device. The embodiment of the invention does not limit the specific mobile device composition.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. the composite nylon disclosed by the invention has the advantages that the filling material whiskers are orderly distributed on the surface of the composite nylon, the friction performance is stable, the whiskers on the surface of the nylon are not easy to fall off, and the service life of a product is long;
2. the composite nylon using the potassium titanate whisker as the filler disclosed by the invention has higher friction coefficient, is used for manufacturing the brake pad, and is beneficial to improving the resistance of the brake pad and improving the braking performance;
3. the preparation method of the composite nylon disclosed by the invention can orderly arrange the filling material whiskers on the surface of the nylon, and the whiskers on the surface of the nylon are not easy to fall off, thereby being beneficial to controlling the friction performance of the nylon;
4. the spinning device disclosed by the invention can realize the preparation method of the composite nylon provided by the invention, and the composite nylon with orderly arranged whiskers is prepared.
In order to embody the technical effects of the technical schemes disclosed in the embodiments 1 to 3 of the present invention, the present invention provides 2 experimental examples, and 3 comparative ratios for illustration.
Experimental example 1
PA6 was dried at 60 ℃ for 12h and injection molded into standard samples of nylon bodies using a microinjector.
Weighing 3 parts by mass of PA6, 1 part by mass of potassium titanate whisker, 1 part by mass of polyethylene oxide and 45 parts by mass of formic acid, and stirring and dissolving uniformly. And (3) cross-spinning the mixed solution on the surface of the nylon body along the transverse direction and the longitudinal direction in a micro-fluidic spinning machine. And then roasting the spinning sample at 230 ℃ to obtain the sample.
Experimental example 2
PA6 was dried at 60 ℃ for 12h and injection molded into standard samples of nylon bodies using a microinjector.
3 parts by mass of PA6, 1.5 parts by mass of potassium titanate whiskers, 1 part by mass of polyethylene oxide and 44.5 parts by mass of formic acid are weighed and stirred to be dissolved uniformly. And (3) cross-spinning the mixed solution on the surface of the nylon body along the transverse direction and the longitudinal direction in a micro-fluidic spinning machine. And then roasting the spinning sample at 230 ℃ to obtain the sample.
Comparative example 1
This comparative example is a pure nylon material with a potassium titanate whisker content of 0.
PA6 was dried at 60 ℃ for 12 hours and injection molded to give a sample.
Comparative example 2
The comparative example is a nylon composite material with the potassium titanate whisker content of 10 percent prepared by the traditional process, and the specific preparation method is as follows:
(1) PA6 was dried with potassium titanate whiskers at 60 ℃ for 12 hours, according to a 9: 1, extruding and blending by a double-screw extruder;
(2) after being extruded out and cut into particles, the particles are dried for 12 hours at the temperature of 60 ℃ and are subjected to injection molding to obtain a sample.
Comparative example 3
The comparative example is a nylon composite material with the potassium titanate whisker content of 30 percent prepared by the traditional process, and the specific preparation method is as follows:
(1) PA6 was dried with potassium titanate whiskers at 60 ℃ for 12 hours, according to 7: 3, extruding and blending by a double-screw extruder;
(2) after being extruded out and cut into particles, the particles are dried for 12 hours at the temperature of 60 ℃ and are subjected to injection molding to obtain a sample.
The test results of the above experiments and comparative examples are shown in fig. 2 and 3.
Fig. 3 shows the friction coefficients of the samples obtained in comparative examples 1 to 3 and experimental examples 1 and 2, and it can be seen from the figure that the friction coefficients of the samples obtained in experimental examples 1 and 2 are significantly higher than those of the samples obtained in comparative examples 1 to 3 under the same friction condition, and thus, the friction characteristics of nylon can be effectively adjusted by the method disclosed in the embodiment of the present invention.
Comparing the amount of potassium titanate whiskers of experimental examples 1 and 2 with the amount of potassium titanate whiskers of comparative examples 2 and 3, the amount of potassium titanate whiskers of comparative examples 2 and 3 was 10 times higher than that of experimental examples 1 and 2 even when the samples obtained in experimental examples 1 and 2 had higher friction coefficients than those of comparative examples 2 and 3. Therefore, by adopting the technical scheme disclosed by the invention, the using amount of the filler can be effectively reduced, and the raw material cost for preparing the composite nylon is reduced.
Fig. 4(a) and 4(b) are electron microscope scanning photographs of the composite nylon samples obtained in comparative example 3 and example 2, respectively. As can be seen from the figure, the arrangement of the potassium titanate whiskers in the composite nylon sample prepared by the traditional blending process is disordered, and the arrangement of the potassium titanate whiskers in the composite nylon sample obtained by the technical scheme of the invention is obviously ordered.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A composite nylon, comprising:
the nylon body is provided with a nylon body,
and spinning the spinning solution on the surface of the nylon body, and forming whiskers which are orderly arranged on the surface of the nylon body after heat treatment and cooling.
2. The composite nylon of claim 1, wherein the spinning dope is a dope comprising: nylon particles, filler, thickening agent and solvent.
3. The composite nylon of claim 2, wherein the nylon particles are present in an amount of 1 to 10 wt%; the content of the filler is 0.1-50 wt%; the content of the thickening agent is 0.1-5 wt%, and the content of the solvent is 65-98.8 wt%.
4. The composite nylon of claim 2, wherein the filler is: potassium titanate whiskers, the potassium titanate whiskers having a diameter of 0.1 to 10 μm and a length of 1 to 1000 μm.
5. The composite nylon of claim 2, wherein the thickener is one or more of polyurethane, sodium polyacrylate, polyvinyl alcohol, polyacrylamide, polyvinylpyrrolidone, polyethylene oxide;
the solvent is one or more of phenol, hydrochloric acid, formic acid and acetic acid.
6. The preparation method of the composite nylon is characterized by comprising the following steps:
at least uniformly mixing nylon particles, a filling material, a thickening agent and a solvent to form a spinning solution;
orderly spinning on the surface of the nylon body by utilizing the spinning to obtain spinning nylon;
and carrying out heat treatment on the spinning nylon, and cooling to obtain the composite nylon.
7. The method of claim 1, wherein the orderly spinning on the surface of the nylon body by the spinning solution to obtain the spun nylon comprises:
and forming liquid spinning bundles by using the spinning solution, wherein the nylon body orderly receives the liquid spinning bundles according to a preset direction, and the liquid spinning bundles form spinning fibers attached to the surface of the nylon body.
8. The method of claim 1, wherein the orderly spinning on the surface of the nylon body by the spinning solution to obtain the spun nylon comprises:
spinning at different angles on the surface of the nylon body by using the spinning solution to form a spinning grid layer on the surface of the nylon body.
9. A spinning apparatus, comprising:
a spinning nozzle that discharges a spinning solution to form a liquid spun yarn bundle;
and the positioning device is used for fixing the nylon body, so that the nylon body receives the liquid spinning tows to form spinning fibers attached to the surface of the nylon body.
10. A spinning apparatus as claimed in claim 9, wherein said spinning nozzle is connected to a micro-flow pump which supplies said spinning solution to said spinning nozzle;
the positioning device is connected with the moving device, and the moving device drives the positioning device to move, so that the spinning nozzle performs spinning at different angles on the surface of the nylon body to form a spinning grid layer.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0705877A1 (en) * 1993-06-25 1996-04-10 Tonen Chemical Corporation Whisker-reinforced thermoplastic resin composition
JP2001240847A (en) * 1999-12-20 2001-09-04 Akebono Brake Ind Co Ltd Frictional material
JP2007303015A (en) * 2006-05-10 2007-11-22 Univ Of Shiga Prefecture Static spinning apparatus
CN104945652A (en) * 2015-07-23 2015-09-30 中国科学院理化技术研究所 Nylon with highly hard and abrasion resistant surface and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
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