CN110791820A

CN110791820A - High-heat-conductivity moisture-removing cool fiber and preparation process thereof

Info

Publication number: CN110791820A
Application number: CN201911005714.0A
Authority: CN
Inventors: 黄惠标
Original assignee: Jiangsu Kang Yichen Life Science & Technology Co Ltd
Current assignee: Jiangsu Kang Yichen Life Science & Technology Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-02-14

Abstract

The invention provides a high-heat-conductivity moisture-removing cool fiber and a preparation process thereof, wherein the process comprises the following steps: s1, sequentially crushing large granular silicon carbide for three times to obtain the primary powder of the silicon carbide; s2, adding the silicon carbide primary powder into a solvent by taking absolute ethyl alcohol as the solvent and polyethylene pyrrolidone as a modifier, and performing ball milling by adopting a high-energy ball milling method to obtain silicon carbide powder; s3, dispersing 1-5 wt% of silicon carbide powder in a spinnable spinning solution to form a mixed spinning solution, wherein the spinning solution comprises a chemical fiber spinning solution and a regenerated cellulose spinning solution; and S4, spinning and post-treating the mixed spinning solution to obtain the high-heat-conductivity moisture-discharging cool fiber. The high-heat-conductivity moisture-discharging cool fiber prepared by the method takes silicon carbide as a raw material, releases cool but not cold elements to quickly conduct redundant heat of a body, and achieves the effect of instantly cooling the skin.

Description

High-heat-conductivity moisture-removing cool fiber and preparation process thereof

Technical Field

The invention relates to the field of textiles, in particular to a high-heat-conductivity moisture-removing cool fiber and a preparation process thereof.

Background

Silicon (Si) is widely distributed in nature, contains about 27.6 percent of earth crust, is the second most abundant element next to oxygen in the earth crust, and belongs to metalloid elements. The silicon carbide is also called carbo-silica, and pure silicon carbide is a colorless and transparent crystal, has the advantages of high-temperature strength, strong oxidation resistance, good wear resistance, good thermal stability, small thermal expansion coefficient, high thermal conductivity, high hardness, thermal shock resistance and chemical corrosion resistance, and is widely applied to the fields of aerospace, nuclear energy, national defense, military industry, civil use and the like. The structure of silicon carbide, like diamond, belongs to an atomic crystal. Silicon carbide, in contrast, corresponds to the replacement of four carbon atoms surrounding the carbon in diamond by silicon atoms. The hardness of silicon carbide is very high, the Mohs hardness is 9.5 grade, which is next to the hardest diamond (10 grade) in the world, and the silicon carbide is a semiconductor, can resist oxidation at high temperature and has very good heat-conducting property.

Heat conduction is simply referred to as heat conduction. The process of transferring heat between two objects in contact with each other and at different temperatures, or between different temperature portions of the same object, without relative macroscopic displacements, is called thermal conduction. The property of a substance to conduct heat is referred to as the thermal conductivity of the object. When heat dissipation is carried out between heating components such as a computer CPU or large-area heat dissipation such as an industrial power supply, the heat-conducting silicone grease is used and a proper amount of noble metal oxide is doped. In the common mica material, about 45 percent of the components are silicon dioxide, and the heat conductivity coefficient is only 7.6. The diamond with the highest thermal conductivity is known, the thermal conductivity is about 2300, and the silicon carbide arranged in the nonmetal is arranged on the second side and can reach 490, which is slightly higher than that of metal materials such as silver and copper.

The silicon carbide has stable chemical property, no dissolution of constituent elements and no stimulation to organism tissues.

The high heat conduction moisture-removing cool feeling fiber on the market has the defects of unobvious instant contact cool feeling effect, poor heat conductivity, sultriness in the use process of a finished product and the like.

Therefore, there is a need to provide a new solution.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention discloses a high-heat-conductivity moisture-removing cool fiber and a preparation process thereof, and the specific technical scheme is as follows:

the invention provides a preparation process of a high-heat-conductivity moisture-removing cool fiber, which comprises the following steps:

s1, sequentially crushing large granular silicon carbide for three times to obtain the primary powder of the silicon carbide;

s2, adding the silicon carbide primary powder into a solvent by taking absolute ethyl alcohol as the solvent and polyethylene pyrrolidone as a modifier, and performing ball milling by adopting a high-energy ball milling method to obtain silicon carbide powder;

s3, dispersing 1-5 wt% of silicon carbide powder in a spinnable spinning solution to form a mixed spinning solution, wherein the spinning solution comprises a chemical fiber spinning solution and a regenerated cellulose spinning solution;

and S4, spinning and post-treating the mixed spinning solution to obtain the high-heat-conductivity moisture-discharging cool fiber.

Further, in the step S2, the ball milling time is 20-36h, and the mass ratio of the silicon carbide primary powder to the modifier is 3-5: 1, the rotating speed is 350-1000 r/min.

Further, the air conditioner is provided with a fan,

step S3, dispersing 1-5 wt% of silicon carbide powder in spinnable spinning solution to form mixed spinning solution, which specifically comprises the following steps:

s31, taking silicon carbide powder, a dispersing agent and an N-methyl pyrrolidone solution as raw materials, and obtaining a dispersing solution through ultrasonic treatment or stirring for 30min4, wherein the dispersing agent comprises sodium dodecyl benzene sulfonate and a sodium dodecyl sulfate ion dispersing agent;

and S32, carrying out high-speed shearing mixing, ball milling, ultrasonic treatment or cavitation treatment on the dispersion solution in the step S31 to obtain a uniformly dispersed mixed spinning solution, wherein the temperature of the mixed spinning solution is 285-290 ℃, and the intrinsic viscosity of slices of the mixed spinning solution is 0.64-0.66.

Further, in step S3, the chemical fiber spinning solution is a polyester and/or polyamide spinning solution, the regenerated cellulose spinning solution is a viscose spinning solution, and the mass concentration of the viscose spinning solution is 20-50%.

Further, in step S3, the content of the silicon carbide powder is 3 wt%, the particle size of the silicon carbide powder is 20 to 60nm, and the purity of the silicon carbide powder is greater than 99%.

Further, step S4 specifically includes:

s41, filtering, defoaming and curing the mixed spinning solution obtained in the step S3, and then sending the mixed spinning solution to a spinning machine, wherein the spinning solution is extruded out of spinneret holes of a spinneret of the spinning machine through a metering pump to form a spinning trickle, the aperture of each spinneret hole is 0.03-0.8 mm, and the stretching multiple of the spinneret is 0.8-1.4 times;

s42, feeding the spinning trickle formed in the step S41 into at least one coagulating bath to form tows, and outputting the tows after the tows are subjected to at least one-time drafting by a drafting roller to obtain the high-heat-conductivity moisture-removing cool fiber;

and S43, cutting the high-heat-conductivity dehumidifying and cooling fibers obtained in the step S42 by a cutting device to enable the cutting length to be 38-55 mm, and forming the high-heat-conductivity dehumidifying and cooling fibers.

Further, step S42 specifically includes the following steps: the spinning trickle formed in the step S41 enters a first coagulation bath to form tows, the tows passing through the first coagulation bath are sent to a second coagulation bath through a first drawing roller, the tows passing through the second coagulation bath are sent to a third coagulation bath through a second drawing roller, and the tows passing through the third coagulation bath are drawn by a third drawing roller and then output to obtain the water lily protein fiber; the temperature of the first coagulation bath is 42-46 ℃, the temperature of the second coagulation bath is 82-88 ℃, the temperature of the third coagulation bath is 80-85 ℃, the draft ratio of the second drawing roller is 40-60%, and the total draft ratio of the third drawing roller is 5-10% and is controlled to be 3.0-3.4.

In addition, the invention also provides a high-heat-conductivity dehumidifying and cooling fiber which is prepared by the method of any one of claims 1 to 7, wherein the outer surface of the high-heat-conductivity dehumidifying and cooling fiber is in a groove shape and is porous, and the cross section of the high-heat-conductivity dehumidifying and cooling fiber comprises a cross shape, a shape that three arc-shaped structures are adjacent in pairs and distributed at 120 degrees, a shape that three strip-shaped structures are adjacent in pairs and distributed at 120 degrees, a shape that more than three strip-shaped structures are adjacent in pairs and distributed at equal angles, and a shape that three strip-shaped structures with radians are adjacent in pairs and distributed at equal angles.

Furthermore, the invention also provides a yarn spun by the high-heat-conductivity moisture-discharging cool fiber prepared by the method.

In addition, the invention also provides the application of the yarn spun by the high-heat-conductivity moisture-discharging cool-feeling fiber, and the high-heat-conductivity moisture-discharging cool-feeling fiber is suitable for non-woven products or fillers; the yarn spun by the high-heat-conductivity moisture-discharging cool fiber is suitable for producing close-fitting textile fabric, home textile fabric, sports clothes, towels, infant clothes or socks.

The invention has the following beneficial effects:

1. the high-heat-conductivity moisture-discharging cool feeling fiber takes silicon carbide as a raw material, releases cool but not cold elements to quickly conduct redundant heat of a body, and achieves the effect of instantly cooling the skin.

2. The high-heat-conductivity moisture-discharging cool feeling fiber disclosed by the invention has the advantages that the heat is rapidly conducted through the structural design of the low-specific heat silicon carbide micro powder and the fiber with the grooves, and the cool feeling of skin contact is maintained. The surface of the fiber has higher specific surface area, the surface of the fiber wall is provided with a plurality of sharp holes or grooves and special-shaped fiber sections, and the fiber can quickly absorb moisture and sweat on the surface of skin by utilizing the capillary effect and is diffused and transferred to the outer layer to be evaporated.

3. The instant contact cool feeling value of the high-heat-conductivity moisture-discharging cool feeling fiber can reach more than 0.3, and most of the existing cool feeling products are about 0.2, so the high-heat-conductivity moisture-discharging cool feeling fiber can rapidly conduct redundant heat of a body to achieve the effect of instant cool feeling.

4. The high-heat-conductivity moisture-discharging cool feeling fiber has the advantages that the cool feeling effect of the ultrahigh heat-conductivity coefficient is not influenced by the washing times, the fiber structure of the grooves can quickly absorb moisture and sweat on the surface of evaporated skin, and the fiber is light and soft and is suitable for non-woven products, fillers, home textile fabrics, underwear fabrics, sports clothing, infant clothing, socks, beauty and skin care and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a process flow diagram of the preparation process of the high thermal conductivity moisture-discharging cool fiber of the present invention;

FIG. 2(a) is a schematic cross-sectional view of a highly thermally conductive moisture and cool releasing fiber prepared by the method of the present invention in one embodiment;

FIG. 2(b) is a schematic cross-sectional view of a high thermal conductivity moisture-discharging cool feeling fiber prepared by the method of the present invention in another embodiment;

FIG. 3(a) is a schematic structural diagram of a high thermal conductivity moisture-discharging cool feeling fiber prepared by the method of the present invention in a further embodiment;

FIG. 3(b) is a schematic cross-sectional structure of FIG. 3 (a);

FIG. 4 is a schematic cross-sectional view of a highly thermally conductive moisture and cooling dissipating fiber according to still another embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a highly thermally conductive moisture and cooling dissipating fiber according to still another embodiment of the present invention;

FIG. 6 is a graph showing the effect of moisture absorption of fabric made of the high thermal conductivity moisture-removing cool fiber of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through the interior of two elements or in interactive relation with one another. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Please refer to fig. 1, which is a process flow diagram of a preparation process of the high thermal conductivity moisture-removing cool fiber of the present invention.

Example 1

The invention relates to a preparation process of a high-heat-conductivity moisture-removing cool fiber, which comprises the following steps:

s1, sequentially crushing large granular silicon carbide for three times to obtain the primary powder of the silicon carbide; step S1 specifically includes the following steps:

s11, crushing and grinding large granular silicon carbide for the first time by using a jaw crusher to obtain silicon carbide primary particles, crushing and grinding the silicon carbide primary particles for the second time by using vertical impact crusher to obtain silicon carbide secondary particles, and crushing and grinding the silicon carbide secondary particles for the third time by using an airflow crusher to obtain the silicon carbide primary powder.

S2, adding the silicon carbide primary powder into a solvent by taking absolute ethyl alcohol as the solvent and polyethylene pyrrolidone as a modifier, and performing ball milling by adopting a high-energy ball milling method to obtain silicon carbide powder; the ball milling time is 20h, and the mass ratio of the silicon carbide primary powder to the modifier is 3: 1, the rotating speed is 350 r/min.

S3, dispersing 3 wt% of silicon carbide powder in a spinnable spinning solution to form a mixed spinning solution, wherein the spinning solution comprises a chemical fiber spinning solution and a regenerated cellulose spinning solution. The particle size of the silicon carbide powder is 20nm, the purity of the silicon carbide powder is more than 99%, the chemical fiber spinning solution is polyester and/or polyamide spinning solution, the regenerated cellulose spinning solution is viscose spinning solution, and the mass concentration of the viscose spinning solution is 20-50%. Step S3 specifically includes:

s31, taking silicon carbide powder, a dispersing agent and an N-methyl pyrrolidone solution as raw materials, and obtaining a dispersing solution by ultrasonic treatment or stirring for 30min, wherein the dispersing agent comprises sodium dodecyl benzene sulfonate and a sodium dodecyl sulfate ion dispersing agent;

Step S4 specifically includes:

s41, filtering, defoaming and curing the mixed spinning solution obtained in the step S3, and then sending the mixed spinning solution to a spinning machine, wherein the spinning solution is extruded out of spinneret holes of a spinneret of the spinning machine through a metering pump to form spinning trickle, the aperture of each spinneret hole is 0.03mm, and the stretching multiple of the spinneret is 1.4 times;

and S42, feeding the spinning stream formed in the step S41 into at least one coagulating bath to form tows, and outputting the tows after the tows are subjected to at least one-time drafting by a drafting roller to obtain the high-heat-conductivity moisture-removing cool fiber.

Step S42 specifically includes the following steps: the spinning trickle formed in the step S41 enters a first coagulation bath to form tows, the tows passing through the first coagulation bath are sent to a second coagulation bath through a first drawing roller, the tows passing through the second coagulation bath are sent to a third coagulation bath through a second drawing roller, and the tows passing through the third coagulation bath are drawn by a third drawing roller and then output to obtain the water lily protein fiber; the temperature of the first coagulation bath is 42-46 ℃, the temperature of the second coagulation bath is 82-88 ℃, the temperature of the third coagulation bath is 80-85 ℃, the draft ratio of the second drawing roller is 40-60%, and the total draft ratio of the third drawing roller is 5-10% and is controlled to be 3.0-3.4.

Example 2

S2, adding the silicon carbide primary powder into a solvent by taking absolute ethyl alcohol as the solvent and polyethylene pyrrolidone as a modifier, and performing ball milling by adopting a high-energy ball milling method to obtain silicon carbide powder; the ball milling time is 36h, and the mass ratio of the silicon carbide primary powder to the modifier is 5: 1, the rotating speed is 1000 r/min.

S3, dispersing 5 wt% of silicon carbide powder in a spinnable spinning solution to form a mixed spinning solution, wherein the spinning solution comprises a chemical fiber spinning solution and a regenerated cellulose spinning solution. The particle size of the silicon carbide powder is 60nm, the purity of the silicon carbide powder is more than 99%, the chemical fiber spinning solution is polyester and/or polyamide spinning solution, the regenerated cellulose spinning solution is viscose spinning solution, and the mass concentration of the viscose spinning solution is 20-50%. Step S3 specifically includes:

s31, taking silicon carbide powder, a dispersing agent and an N-methyl pyrrolidone solution as raw materials, and obtaining a dispersing solution by ultrasonic treatment or stirring for 3 hours, wherein the dispersing agent comprises sodium dodecyl benzene sulfonate and a sodium dodecyl sulfate ion dispersing agent;

Step S4 specifically includes:

s41, filtering, defoaming and curing the mixed spinning solution obtained in the step S3, and then sending the mixed spinning solution to a spinning machine, wherein the spinning solution is extruded out of spinneret holes of a spinneret of the spinning machine through a metering pump to form spinning trickle, the aperture of each spinneret hole is 0.8mm, and the stretching multiple of the spinneret is 0.8 times;

Example 3

S2, adding the silicon carbide primary powder into a solvent by taking absolute ethyl alcohol as the solvent and polyethylene pyrrolidone as a modifier, and performing ball milling by adopting a high-energy ball milling method to obtain silicon carbide powder; the ball milling time is 24 hours, and the mass ratio of the silicon carbide primary powder to the modifier is 4: 1, the rotating speed is 600 r/min.

S3, dispersing 1 wt% of silicon carbide powder in a spinnable spinning solution to form a mixed spinning solution, wherein the spinning solution comprises a chemical fiber spinning solution and a regenerated cellulose spinning solution. The particle size of the silicon carbide powder is 40nm, the purity of the silicon carbide powder is more than 99%, the chemical fiber spinning solution is polyester and/or polyamide spinning solution, the regenerated cellulose spinning solution is viscose spinning solution, and the mass concentration of the viscose spinning solution is 20-50%. Step S3 specifically includes:

s31, taking silicon carbide powder, a dispersing agent and an N-methyl pyrrolidone solution as raw materials, and obtaining a dispersing solution by ultrasonic treatment or stirring for 1.5 hours, wherein the dispersing agent comprises sodium dodecyl benzene sulfonate and a sodium dodecyl sulfate ion dispersing agent;

Step S4 specifically includes:

s41, filtering, defoaming and curing the mixed spinning solution obtained in the step S3, and then sending the mixed spinning solution to a spinning machine, wherein the spinning solution is extruded out of spinneret holes of a spinneret of the spinning machine through a metering pump to form spinning trickle, the aperture of each spinneret hole is 0.5mm, and the stretching multiple of the spinneret is 1 time;

The invention further provides a high thermal conductivity moisture and cool sensing fiber, which is prepared by any one of the methods in embodiments 1-3, please refer to fig. 2(a) to 5, fig. 2(a) is a schematic cross-sectional structure diagram of the high thermal conductivity moisture and cool sensing fiber prepared by the method in one embodiment of the invention; FIG. 2(b) is a schematic cross-sectional view of a high thermal conductivity moisture-discharging cool feeling fiber prepared by the method of the present invention in another embodiment; FIG. 3(a) is a schematic structural diagram of a high thermal conductivity moisture-discharging cool feeling fiber prepared by the method of the present invention in a further embodiment; FIG. 3(b) is a schematic cross-sectional structure of FIG. 3 (a); FIG. 4 is a schematic cross-sectional view of a highly thermally conductive moisture and cooling dissipating fiber according to still another embodiment of the present invention; FIG. 5 is a schematic cross-sectional view of a highly thermally conductive moisture and cooling dissipating fiber according to still another embodiment of the present invention; . As shown in fig. 2(b) to 5, the outer surface of the high thermal conductivity dehumidifying and cooling fiber is groove-shaped and has a plurality of holes, and the cross section of the high thermal conductivity dehumidifying and cooling fiber includes but is not limited to a cross shape (fig. 2(a) and 2(b)), a shape in which three arc-shaped structures are adjacent to each other and distributed at 120 ° (fig. 3(a)), a shape in which three strip-shaped structures are adjacent to each other and distributed at 120 ° (fig. 3(b)), a shape in which more than three strip-shaped structures are adjacent to each other and distributed at equal angles (fig. 4), and a shape in which three strip-shaped structures having radians are adjacent to each other and distributed at equal angles (fig..

The invention also provides a yarn spun by the high-heat-conductivity moisture-removing cool fiber prepared by the method.

The high-heat-conductivity moisture-discharging cool-feeling fiber is suitable for non-woven products or fillers; the yarn spun by the high-heat-conductivity moisture-discharging cool fiber is suitable for producing close-fitting textile fabric, home textile fabric, sports clothes, towels, infant clothes or socks.

The invention has the following beneficial effects:

4. The high-heat-conductivity moisture-discharging cool feeling fiber has the advantages that the cool feeling effect of the ultrahigh heat-conductivity coefficient is not influenced by the washing times, the fiber structure of the cross-shaped groove can quickly absorb moisture and sweat on the surface of evaporated skin, and the fiber is light and soft and is suitable for non-woven products, fillers, home textile fabrics, underwear surfaces, sports clothing, infant clothing, socks, beauty and skin care and the like.

The detection results of the fabric prepared from the high thermal conductivity moisture-discharging cool feeling fiber according to one embodiment of the present invention, by standard technical service (shanghai) limited company, are shown in table 1 below:

TABLE 1

The sample in table 1 is a fabric (polyamide woven fabric) made of a high thermal conductivity moisture-discharging cool-feeling fiber prepared by using a polyamide fiber as a carrier.

Wherein Q-max meets the national standard and the instant contact cool feeling is the maximum value of the instant heat loss of the skin surface when the simulated human body contacts the fabric, namely the instant maximum heat flux of the fabric. The Q-max value is an index of the fabric instant cooling performance, and the unit is W/cm²And (4) showing. As shown in the table, the instant contact cool feeling value of the high heat conduction moisture removal cool feeling fiber of the invention can reach more than 0.3, while most of the existing cool feeling products are about 0.2, therefore, the high heat conduction moisture removal cool feeling fiber of the invention can rapidly conduct the redundant heat of the body, and the effect of instant cool feeling is achieved.

The moisture absorption performance of the fabric made of the high thermal conductivity moisture-discharging cool-feeling fiber prepared by the process method according to one embodiment of the invention is shown in table 2 and fig. 6.

TABLE 2

Detecting items	Detection standard	As received	Standard requirements
				Evaporation speed (g/h)	GB/T 21655.1-2008	0.27	≥0.18
Water absorption (%)	GB/T 21655.1-2008	136	≥100
				Evaporation time (min)	GB/T 21655.1-2008	42	---

In table 2, the fabric (polyamide woven fabric) prepared from the high thermal conductivity moisture-discharging cool feeling fiber prepared using the polyamide fiber as the carrier is shown as it is.

As can be seen from Table 2, the fabric made of the high thermal conductivity moisture-removing cool fiber prepared by the method has the moisture evaporation rate of 0.27g/h, the water absorption rate of 136 percent, which is far beyond the standard requirement, and has excellent moisture absorption and quick drying functions,

in conclusion, the high-heat-conduction moisture-discharging cool-feeling fiber has a higher specific surface area, the surface of the fiber wall is provided with a plurality of sharp holes or grooves and a special-shaped fiber section, and by utilizing the capillary effect, the fiber can rapidly absorb moisture and sweat on the surface of the skin and can be diffused and transferred to the outer layer to be evaporated, so that the cool-feeling fabric can rapidly absorb the moisture and the sweat on the surface of the skin and can avoid the adhesion and stuffiness caused by the fact that the sweat stays on the surface of the skin for a long time by diffusing and transferring to the outer layer to be evaporated aiming at the problem that the skin secretes sweat and a large amount of water vapor in summer.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A preparation process of a high-heat-conductivity dehumidifying and cooling fiber is characterized by comprising the following steps:

2. The preparation process of the high-thermal-conductivity moisture-discharging cool-feeling fiber according to claim 1, wherein in the step S2, the ball milling time is 20-36h, and the mass ratio of the silicon carbide primary powder to the modifier is 3-5: 1, the rotating speed is 350-1000 r/min.

3. The preparation process of the high thermal conductivity moisture-discharging cool feeling fiber according to claim 1,

s31, taking silicon carbide powder, a dispersing agent and an N-methyl pyrrolidone solution as raw materials, and obtaining a dispersing solution by ultrasonic treatment or stirring for 30min-3h, wherein the dispersing agent comprises sodium dodecyl benzene sulfonate and a sodium dodecyl sulfate ion dispersing agent;

4. The preparation process of the high-thermal-conductivity moisture-discharging cool-feeling fiber according to claim 1, wherein in step S3, the chemical fiber spinning solution is a polyester and/or polyamide spinning solution, the regenerated cellulose spinning solution is a viscose spinning solution, and the mass concentration of the viscose spinning solution is 20-50%.

5. The preparation process of the high-thermal-conductivity moisture-discharging cool fiber according to claim 3, wherein in the step S3, the content of the silicon carbide powder is 3 wt%, the particle size of the silicon carbide powder is 20-60nm, and the purity of the silicon carbide powder is greater than 99%.

6. The preparation process of the high-thermal-conductivity moisture-discharging cool-feeling fiber according to claim 1, wherein the step S4 specifically comprises:

7. The preparation process of the high-thermal-conductivity moisture-discharging cool-feeling fiber according to claim 6, wherein the step S42 specifically comprises the following steps: the spinning trickle formed in the step S41 enters a first coagulation bath to form tows, the tows passing through the first coagulation bath are sent to a second coagulation bath through a first drawing roller, the tows passing through the second coagulation bath are sent to a third coagulation bath through a second drawing roller, and the tows passing through the third coagulation bath are drawn by a third drawing roller and then output to obtain the water lily protein fiber; the temperature of the first coagulation bath is 42-46 ℃, the temperature of the second coagulation bath is 82-88 ℃, the temperature of the third coagulation bath is 80-85 ℃, the draft ratio of the second drawing roller is 40-60%, and the total draft ratio of the third drawing roller is 5-10% and is controlled to be 3.0-3.4.

8. The utility model provides a high heat conduction hydrofuge cool sense fibre which characterized in that: the high heat conduction and dehumidification cooling fiber is prepared by the method of any one of claims 1 to 7, the outer surface of the high heat conduction and dehumidification cooling fiber is in a groove shape and is provided with a plurality of holes, and the cross section shape of the high heat conduction and dehumidification cooling fiber comprises a cross shape, a shape that three arc-shaped structures are adjacent in pairs and distributed at 120 degrees, a shape that three strip-shaped structures are adjacent in pairs and distributed at 120 degrees, a shape that more than three strip-shaped structures are adjacent in pairs and distributed at equal angles, and a shape that three strip-shaped structures with radian are adjacent in pairs and distributed at equal angles.

9. A yarn spun using the high thermal conductivity moisture-excluding cool feeling fiber of claim 8.

10. Use of a highly thermally conductive moisture excluding cooling fiber according to claim 8 or a yarn spun from a highly thermally conductive moisture excluding cooling fiber according to claim 9, wherein the highly thermally conductive moisture excluding cooling fiber is suitable for a nonwoven product or a filler; the yarn spun by the high-heat-conductivity moisture-discharging cool fiber is suitable for producing close-fitting textile fabric, home textile fabric, sports clothes, towels, infant clothes or socks.