CN112796005B - Sheath-core type double-component anti-static reactance ultraviolet fiber and preparation method thereof - Google Patents
Sheath-core type double-component anti-static reactance ultraviolet fiber and preparation method thereof Download PDFInfo
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- CN112796005B CN112796005B CN202011616508.6A CN202011616508A CN112796005B CN 112796005 B CN112796005 B CN 112796005B CN 202011616508 A CN202011616508 A CN 202011616508A CN 112796005 B CN112796005 B CN 112796005B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- 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
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
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Abstract
The invention discloses a sheath-core type double-component anti-static reactance ultraviolet fiber and a preparation method thereof, wherein the sheath-core type double-component anti-static reactance ultraviolet fiber comprises a sheath layer and a core layer, the sheath layer is a PBT polymer, the core layer is a PET polymer, and the mass ratio of the sheath layer to the core layer is 1:1-5; wherein the PBT polymer is a polymer of PBT polyester and conductive functional powder; the PET polymer is a polymer of PET polyester and an anti-ultraviolet auxiliary agent. The invention adopts the sheath-core structure bicomponent fiber to prepare the novel antistatic ultraviolet resistant fiber, the fiber diameter can be superfine fiber, the fiber can be made into light color, the permanent antistatic ultraviolet resistant function, the mechanical property can reach the standard of common fiber, the requirements of various weaves can be completely met, the cost is equivalent to antistatic ultraviolet resistant finishing, and the pollution and raw material cost are reduced, therefore, the invention can enlarge the export of textiles and promote the added value of textiles.
Description
Technical Field
The invention belongs to the technical field of synthetic fibers, and particularly relates to a sheath-core type double-component antistatic ultraviolet resistant fiber and a preparation method thereof.
Background
The problem of insufficient antistatic and ultraviolet resistance is a persistent problem faced by chemical fiber fabrics, and solutions are available at present, for example, from the sources of fibers, polyester fibers and nylon fibers can be prepared, for example, antistatic and ultraviolet resistant fibers can be prepared by adding an antistatic and ultraviolet resistant agent, the antistatic and ultraviolet resistant requirements of the fabrics can be basically met, and the fiber has wide application at present, but the fiber has irreparable defects: firstly, the antistatic fiber adopts conductive wires, the lowest market price is about 20 ten thousand/ton, the price of the ultraviolet resistant fiber is higher, and the price is between 5 and 9 ten thousand/ton, and the cost is higher for the traditional textile; secondly, the mechanical properties of the fibers are poor, more and more knitted fabrics are used at present, particularly warp knitted fabrics are widely used, but the mechanical properties of the fibers are also high, and the fibers added with the anti-static ultraviolet agent influence the mechanical properties of the fibers due to the influence of the anti-static ultraviolet agent, so that the application range of the fibers is limited; third, the temperature resistance is poor, the application of the material in clothing and home textiles is limited by the characteristics of the material, and the heat resistance of the fiber added with the antistatic ultraviolet agent is lower than that of the common fiber, so that the application range of the fiber is affected.
At present, more fabrics in the market realize the anti-static ultraviolet function of the fabrics by adopting anti-static ultraviolet agent after-finishing, and compared with the mode of using conductive fibers, the mode has lower cost and obvious effect, so the mode is also used by most fabric manufacturers, but the mode is low and effective, but has unavoidable defects: 1) Additional pollution is usually achieved by adopting antistatic and anti-ultraviolet agents for after-treatment at present, so that the pollution degree of the wastewater is increased, and the treatment difficulty of the wastewater is also increased; 2) The durability is insufficient, the anti-static reactance ultraviolet after-finishing mode adopted at present is poor in washing fastness, the washing fastness which can meet the standard requirement is generally rarely achieved, the export of textiles is not facilitated, the competitive advantage of the textiles is reduced, and disputes in trade are increased.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above and/or problems occurring in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: the sheath-core type double-component antistatic ultraviolet-resistant fiber comprises a sheath layer and a core layer, wherein the sheath layer is a PBT polymer, the core layer is a PET polymer, and the mass ratio of the sheath layer to the core layer is 1:1-5;
wherein the PBT polymer is a polymer of PBT polyester and conductive functional powder; the PET polymer is a polymer of PET polyester and an anti-ultraviolet auxiliary agent.
As a preferable scheme of the sheath-core type double-component antistatic ultraviolet resistant fiber, the invention comprises the following steps: the conductive functional powder is present in the PBT polymer in an amount of 2 to 10 mass percent.
As a preferable scheme of the sheath-core type double-component antistatic ultraviolet resistant fiber, the invention comprises the following steps: the conductive functional powder is one of nitrogen doped titanium dioxide, titanium dioxide deposited conductive zinc oxide, titanium dioxide deposited conductive tin oxide, conductive carbon black and conductive graphene.
As a preferable scheme of the sheath-core type double-component antistatic ultraviolet resistant fiber, the invention comprises the following steps: the anti-ultraviolet auxiliary agent is present in the PET polymer in an amount of 0.5-3% by mass.
As a preferable scheme of the sheath-core type double-component antistatic ultraviolet resistant fiber, the invention comprises the following steps: the anti-ultraviolet auxiliary agent is prepared from an ultraviolet 1020 anti-ultraviolet weather-resistant auxiliary agent, dibutyl tin and ethylene glycol.
The invention also discloses a preparation method of the sheath-core type double-component antistatic ultraviolet-resistant fiber, which comprises the following steps of,
preparing a PBT functional slice by conducting functional powder and PBT polyester through double-screw melting and co-extrusion, wherein the double-screw processing temperature is 225-270 ℃ and the screw rotating speed is 100-500 r/min;
preparing PET functional slices from the anti-ultraviolet auxiliary agent and PET polyester through in-situ polymerization and granulating, wherein the polymerization temperature is 270-290 ℃;
the PBT functional slice is used as a skin layer, the PET functional slice is used as a core layer, and the skin layer and the core layer are respectively added into a double-screw composite spinning machine according to the mass ratio of 1:1-5, so that the skin-core type double-component antistatic ultraviolet-resistant fiber is prepared.
As a preferable scheme of the preparation method of the sheath-core type double-component antistatic ultraviolet-resistant fiber, the invention comprises the following steps: the prepared PBT functional slice is prepared by blending conductive functional powder with PBT polyester in an amount of 2-10% by mass, wherein the particle size of the conductive functional powder is 20-100 nm.
As a preferable scheme of the preparation method of the sheath-core type double-component antistatic ultraviolet-resistant fiber, the invention comprises the following steps: the PET functional slice is prepared, and the anti-ultraviolet auxiliary agent is polymerized with PET polyester in an amount of 0.5-3% by mass ratio.
As a preferable scheme of the preparation method of the sheath-core type double-component antistatic ultraviolet-resistant fiber, the invention comprises the following steps: the preparation method of the anti-ultraviolet auxiliary agent comprises the step of dissolving the UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin in ethylene glycol according to a proportion.
As a preferable scheme of the preparation method of the sheath-core type double-component antistatic ultraviolet-resistant fiber, the invention comprises the following steps: the double-screw composite spinning machine is characterized in that the screw temperature of PET functional slices is 270-300 ℃, the screw temperature of PBT functional slices is 240-270 ℃, the spinning is generally performed at a temperature 25-40 ℃ higher than the melting point of specific PET and PBT materials depending on the melting point of the specific PET and PBT materials, the spinning speed is lower than that of common fibers, and the spinning speed is 600-2600 m/min.
The invention has the beneficial effects that:
(1) The invention adopts the sheath-core structure bicomponent fiber to prepare the novel antistatic ultraviolet resistant fiber, the fiber diameter can be superfine fiber, the fiber can be made into light color, the permanent antistatic ultraviolet resistant function, the mechanical property can reach the standard of common fiber, the requirements of various weaves can be completely met, the cost is equivalent to antistatic ultraviolet resistant finishing, and the pollution and raw material cost are reduced, therefore, the invention can enlarge the export of textiles and promote the added value of textiles.
(2) The invention makes the composite fiber have antistatic and anti-ultraviolet functions, and the uniform distribution of the antistatic layer of the composite fiber skin layer is realized, so that the antistatic function of the fiber is endowed with the antistatic function comparable to that of the conductive wire, the antistatic performance of the fiber is improved, the core layer fiber is an in-situ polymerization anti-ultraviolet PET fiber, the mechanical property of the PET fiber is maintained, and the fiber has good braiding performance.
(3) The invention provides a feasible solution for solving the problem that the cost, mechanical and thermal properties of the antistatic ultraviolet fiber are difficult to unify, not only solves the antistatic ultraviolet problem of the synthetic fiber on the basis of not damaging the physical and chemical properties of the synthetic fiber, but also keeps the excellent braiding performance through the mechanical properties of the core fiber, and the nano material in the antistatic fiber of the skin layer can absorb and reflect ultraviolet rays and form synergism with the ultraviolet resistant functional auxiliary agent of the core layer. The added value of the fiber and the fabric is increased, and the application field of the fiber and the fabric in the textile range is expanded.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 0.2% to prepare PET functional slices, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 1.
TABLE 1
The mechanical properties of the fiber are tested, the strength is 3.42cn/dtex, the elongation at break is 24%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 2
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 0.2% to prepare PET functional slices, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 2.
TABLE 2
The mechanical properties of the fiber are tested, the strength is 3.29cn/dtex, the elongation at break is 24%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 3
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 0.2% to prepare PET functional slices, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 3.
TABLE 3 Table 3
The mechanical properties of the fiber are tested, the strength is 3.18cn/dtex, the elongation at break is 23%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 4
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 0.2% to prepare PET functional slices, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 4.
TABLE 4 Table 4
The mechanical properties of the fibers were tested, the strength was 2.98cn/dtex, the elongation at break was 16%, the diameter of the single fibers was 2D (7 microns), and the mechanical properties were too poor to meet the weaving requirements.
Example 5
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 0.8% to prepare PET functional slices, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 5.
TABLE 5
The mechanical properties of the fiber are tested, the strength is 3.18cn/dtex, the elongation at break is 23%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 6
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 2% to prepare a PET functional slice, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 6.
TABLE 6
The mechanical properties of the fiber are tested, the strength is 3.18cn/dtex, the elongation at break is 23%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 7
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 3% to prepare a PET functional slice, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:5, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 7.
TABLE 7
The mechanical properties of the fiber are tested, the strength is 2.78cn/dtex, the elongation at break is 18%, the diameter of the single fiber is 2D (7 microns), and the mechanical properties are poor, so that the addition amount of the ultraviolet resistant auxiliary agent is preferably 2%.
Example 8
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 2% to prepare a PET functional slice, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:3, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 8.
TABLE 8
The mechanical properties of the fiber are tested, the strength is 3.18cn/dtex, the elongation at break is 23%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 9
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 2% to prepare a PET functional slice, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:2, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 9.
TABLE 9
The mechanical properties of the fiber are tested, the strength is 3.18cn/dtex, the elongation at break is 23%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed.
Example 10
Preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 2% to prepare a PET functional slice, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:1, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
The fibers were tested for antistatic and uv resistance and the results are shown in table 10.
Table 10
The mechanical properties of the fiber are tested, the strength is 3.18cn/dtex, the elongation at break is 23%, the requirements of various weaving modes are met, the diameter of single fiber is 2D (7 microns), and various fabrics for clothing, home textiles and the like can be developed. However, the relative increase of the antistatic function is not obvious, and the reduction of the ultraviolet resistance function is obvious, so that the effect is optimal when the PET/PBT ratio is set to be 2:1.
The invention adopts the sheath-core structure bicomponent fiber to prepare the novel antistatic ultraviolet resistant fiber, the fiber diameter can be superfine fiber, the fiber can be made into light color, the permanent antistatic ultraviolet resistant function, the mechanical property can reach the standard of common fiber, the requirements of various weaves can be completely met, the cost is equivalent to antistatic ultraviolet resistant finishing, and the pollution and raw material cost are reduced, therefore, the invention can enlarge the export of textiles and promote the added value of textiles.
The invention makes the composite fiber have antistatic and anti-ultraviolet functions, and the uniform distribution of the antistatic layer of the composite fiber skin layer is realized, so that the antistatic function of the fiber is endowed with the antistatic function comparable to that of the conductive wire, the antistatic performance of the fiber is improved, the core layer fiber is an in-situ polymerization anti-ultraviolet PET fiber, the mechanical property of the PET fiber is maintained, and the fiber has good braiding performance.
The invention provides a feasible solution for solving the problem that the cost, mechanical and thermal properties of the antistatic ultraviolet fiber are difficult to unify, not only solves the antistatic ultraviolet problem of the synthetic fiber on the basis of not damaging the physical and chemical properties of the synthetic fiber, but also keeps the excellent braiding performance through the mechanical properties of the core fiber, and the nano material in the antistatic fiber of the skin layer can absorb and reflect ultraviolet rays and form synergism with the ultraviolet resistant functional auxiliary agent of the core layer. The added value of the fiber and the fabric is increased, and the application field of the fiber and the fabric in the textile range is expanded.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (1)
1. A preparation method of skin-core type double-component antistatic ultraviolet-resistant fiber is characterized by comprising the following steps: comprising the steps of (a) a step of,
preparing a PBT functional slice by melt co-extrusion of conductive functional powder with the particle size of 80nm and PBT polyester by a double screw, wherein the double screw processing temperature is 255 ℃ and the screw rotating speed is 300r/min;
the method comprises the steps of (1) compounding a UV1020 anti-ultraviolet weather-resistant auxiliary agent and dibutyl tin according to a ratio of 10:1, dissolving the compound in ethylene glycol to prepare an anti-ultraviolet auxiliary agent, and carrying out in-situ polymerization and granulating on the anti-ultraviolet auxiliary agent and PET polyester according to a mass ratio of 2% to prepare a PET functional slice, wherein the polymerization temperature is 282 ℃;
and taking the PBT functional slice as a skin layer, taking the PET functional slice as a core layer, respectively adding the skin layer and the core layer into a double-screw composite spinning machine according to the mass ratio of 1:2, wherein the temperature of a screw for the PET functional slice is 283 ℃, the temperature of a screw for the PBT functional slice is 255 ℃, and the spinning speed is 2000m/min, so as to prepare the skin-core type double-component antistatic ultraviolet-resistant fiber.
Priority Applications (1)
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