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CN-122013348-A - Fiber for activating biological molecular activity and relieving varicose veins and preparation method thereof

CN122013348ACN 122013348 ACN122013348 ACN 122013348ACN-122013348-A

Abstract

The application discloses a varicose vein relieving fiber for activating biological molecular activity and a preparation method thereof, and relates to the technical field of high-performance nylon fibers. The application adopts a composite spinning method, and the fiber with varicose vein relieving performance is prepared by adding particles with far infrared heating function and anion releasing function into spinning master batch. The preparation method comprises the steps of pre-treating functional particles in advance to enhance compatibility, adding the pretreated functional particles and modified alumina particles into nylon raw materials, mixing to prepare nylon functional master batches, and preparing nylon slices and master batches into fibers through melt spinning. Li + is doped in the modified alumina particles, so that lattice distortion of the alumina particles can be caused, the far infrared radiation effect is improved, and the heating performance of the varicose vein release fiber is enhanced.

Inventors

  • SHEN LEI
  • ZHANG YONG
  • ZHANG YU
  • WANG QIUHAN
  • XU LEI
  • HUANG JIAHAO
  • HUANG GANGYUE

Assignees

  • 江南大学
  • 苏州晟旺新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (10)

  1. 1. A varicose vein relaxing fiber for activating biological molecular activity is characterized in that the fiber is obtained by mixing and melt spinning nylon functional master batch and nylon slices, wherein the nylon functional master batch is obtained by mixing and granulating nylon raw materials, functional particles and modified Al 2 O 3 particles.
  2. 2. The varicose vein relaxing fiber of claim 1, wherein the functional particles comprise any one or more of nano SiO 2 , nano Fe 2 O 3 , nano TiO 2 , nano MgO, nano ZrO 2 , nano tourmaline and nano montmorillonite.
  3. 3. The varicose vein relaxing fiber for activating the activity of biological molecules according to claim 1, wherein the functional particles have a particle size ranging from 10 to 500nm.
  4. 4. A method of preparing activated biomolecular active varicose vein relaxing fiber according to any one of claims 1 to 3, comprising the steps of: preprocessing the functional particles to obtain preprocessed functional particles; modifying the nano Al 2 O 3 particles to obtain modified Al 2 O 3 particles; Mixing the pretreated functional particles and the modified Al 2 O 3 particles with nylon raw materials, and carrying out melt granulation to obtain nylon functional master batches; and mixing the nylon functional master batch with nylon chips, and carrying out melt spinning to obtain the varicose vein relaxing fiber.
  5. 5. The method for preparing varicose vein relaxing fiber with activated biological molecular activity according to claim 4, wherein the preparation method of the pretreatment functional particles is as follows: adding a silane coupling agent into absolute ethyl alcohol, and stirring at 20-30 rpm for 10-20 min to obtain a mixed modifier; And (3) adding the dried functional particles into a mixer at the rotating speed of 500-1200 rpm, adding the mixed modifier into the mixer in a spray mode, continuously stirring, heating to 50-60 ℃, reacting for 30-60 min, and naturally cooling to room temperature to obtain the pretreated functional particles.
  6. 6. The preparation method of the varicose vein relaxing fiber with activated biological molecular activity according to claim 5, wherein the mass ratio of the silane coupling agent, the absolute ethyl alcohol and the functional particles is (0.5-2): 3-5): 100, and the silane coupling agent comprises any one of KH-570 and KH-550.
  7. 7. The method for preparing a varicose vein relaxing fiber with activated biomolecular activity according to claim 4, wherein the preparation method of the modified Al 2 O 3 particles is as follows: Adding nano Al 2 O 3 particles into a DMF solvent, performing ultrasonic dispersion for 20-30 min to form a uniform suspension, adding Zn (NO 3 ) 2 ·6H 2 O, terephthalic acid, stirring at the rotation speed of 500-600 r/min at room temperature for 60-80 min, transferring the mixed system into a hydrothermal reaction kettle, heating to 110-120 ℃, performing constant-temperature reaction for 10-12 h, naturally cooling to room temperature, and filtering to obtain Zn-MOF coated particles, wherein the mass ratio of the DMF, the nano Al 2 O 3 particles, zn (NO 3 ) 2 ·6H 2 O and terephthalic acid) is 100 (4.5-5.5): (4-4.5): (2-2.4); Alternately washing the obtained Zn-MOF coated particles with DMF and absolute ethyl alcohol for 3 times, vacuum drying at 60 ℃ for 2 hours, mixing the dried particles with LiNO 3 according to the mass ratio (9-10): 1, putting the mixture into a tubular furnace, introducing nitrogen, controlling the flow rate of the nitrogen to be 50mL/min, after removing air in the furnace, raising the temperature to 550-600 ℃ at the temperature rising rate of 4-5 ℃/min, carrying out constant-temperature pyrolysis for 2-3 hours, and then cooling to room temperature at the temperature reducing rate of 2-3 ℃/min to obtain Li+ doped MOF derived carbon-far infrared particle core-shell composite particles; And (3) placing the composite particles into a hydrochloric acid solution with the concentration of 1mol/L, stirring and soaking at the rotation speed of 300-400 r/min at room temperature for 30-40 min, washing with deionized water to be neutral, vacuum drying at 80 ℃ for 4-5 h, crushing, and sieving with a 200-mesh sieve to obtain the final modified Al 2 O 3 particles.
  8. 8. The preparation method of the varicose vein relaxing fiber with the activated biological molecular activity, which is characterized by comprising the specific preparation steps of adding the pretreated functional particles and the modified Al 2 O 3 particles into nylon raw materials, melting and mixing in a double-screw extruder, wherein the extrusion temperature is 260-280 ℃, the screw rotating speed is 200r/min, and extruding and granulating to obtain the nylon functional masterbatch.
  9. 9. The preparation method of the varicose vein relaxing fiber with the activated biological molecular activity, which is characterized in that the mass ratio of the nylon raw material to the pretreated functional particles to the modified Al 2 O 3 particles is 100 (2-4): 3-5, and the mass ratio of the nylon functional master batch to the nylon chips is 10-20): 80-90.
  10. 10. The preparation method of the varicose vein relaxing fiber with activated biological molecular activity according to claim 4, wherein the specific parameters of melt spinning are that the temperature of an extrusion screw is 270-280 ℃, the rotating speed of a metering pump is 30-32 r/min, the temperature of a spinneret plate is 270-280 ℃, the temperature of side blowing is 22-24 ℃, the wind speed is 0.9-1.2 m/s, the type of oiling agent is antistatic oiling agent, and the winding speed is 1000-1200 m/min.

Description

Fiber for activating biological molecular activity and relieving varicose veins and preparation method thereof Technical Field The application belongs to the technical field of high-performance nylon fibers, and particularly relates to a fiber for activating biological molecular activity and relieving varicose veins and a preparation method thereof. Background With the progress of modern society, people pay close attention to sub-health, especially the problems of enlarging sedentary office population, varicosity, arthralgia, peripheral circulation disorder and the like are high, the demand of people on textiles is improved from wearing warm to wearing healthy, and the textiles are expected to be capable of assisting in improving circulation, relieving varicosity and the like through physical action. Therefore, far infrared textiles are developed, and the far infrared textiles are functional textiles with the capability of absorbing energy and emitting infrared radiation through material design or functional modification, and are characterized in that the far infrared textiles can stably emit far infrared wave bands with the wavelength of 4-14 mu m, so that the blood circulation of a human body is promoted, the metabolism is accelerated, and the health state of the human body is improved. Nylon fibers are also called nylon fibers, and have excellent mechanical properties, elasticity and other properties, far infrared particles and nylon master batches are commonly spun in the prior art to prepare far infrared fibers, and far infrared textiles are woven from the far infrared fibers. Besides far infrared textile, particles with negative ion release function can be added into fiber or fabric, and can promote blood circulation of human body. In the prior art, far infrared fabrics can be prepared by preparing far infrared fibers to weave the far infrared fabrics or directly coating the fabrics. The blended yarn is prepared by mixing nano particles with far infrared emission function with fiber matrix material to prepare master batch, and then spinning to prepare the far infrared fiber. For example, chinese patent application publication No. CN102732999a discloses a negative ion far infrared composite functional fiber, the fiber adopts a sheath-core structure, the sheath is a polymer sheath containing far infrared ceramic powder and tourmaline powder, the core is a polymer core containing tourmaline powder, and the fiber adopts a sheath-core composite structure, and functional substances far infrared ceramic powder and tourmaline powder are respectively mixed in the sheath and core of the fiber, so that the problem of action interference caused by material blending with various different action mechanisms can be better solved, and the actual functional action of the far infrared fabric can be improved. In the prior art, when preparing far infrared fibers, a composite spinning mode is generally adopted, so that functional particles can be fused into the fibers, the problem of falling of the functional particles is avoided, but in order to ensure the mechanical properties of the fibers, the adding amount of the functional particles is not large, and the far infrared heating power of the fibers is low. Therefore, how to develop and design a fiber for improving far-infrared radiation performance is a problem to be solved. Disclosure of Invention Aiming at the problems existing in the prior art, the primary aim of the application is to provide a fiber for activating biological molecular activity and relieving varicose veins and a preparation method thereof, particles with far infrared heating function and anion release function are added into spinning master batches through a composite spinning technology to obtain the fiber with the function of relieving varicose veins, MOF (metal organic framework) is utilized for pyrolysis of derived carbon materials for improving the far infrared heating performance of the fiber, the far infrared particles are coated and ion doping is synchronously realized, the compatibility and specific surface area of the porous structure of the derived carbon are improved, and doping ions can optimize the far infrared energy level and improve the far infrared heating performance. In order to achieve the above purpose, the present application provides the following technical scheme: The application provides a varicose vein relaxing fiber for activating biological molecular activity, which is characterized in that the fiber is obtained by mixing and melt spinning nylon functional master batch and nylon slices, wherein the nylon functional master batch is obtained by mixing and granulating nylon raw materials, functional particles and modified Al 2O3 particles; Preferably, the functional particles comprise any one or more of nano SiO 2, nano Fe 2O3, nano TiO 2, nano MgO, nano ZrO 2, nano tourmaline and nano montmorillonite; The functional particles are characterized in that the nano tourmaline pa