CN115717276B - Far infrared antibacterial, anti-mite and antiviral multifunctional fiber and mattress protection pad - Google Patents
Far infrared antibacterial, anti-mite and antiviral multifunctional fiber and mattress protection pad Download PDFInfo
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Abstract
The invention belongs to the technical field of functional fiber materials, and discloses a far infrared antibacterial, anti-mite and antiviral multifunctional fiber and a mattress protection pad. The multifunctional fiber is prepared by the following method: hydroxyl silicone oil is subjected to cationic reaction sequentially through amino trimethoxy silane crosslinking and 2, 3-epoxypropyl trimethyl ammonium chloride to obtain cationic modified silicone rubber reinforced particles; carrying out surface modification reaction on far infrared and antibacterial anti-mite powder sequentially through porous silicon dioxide and a silane coupling agent, and then adsorbing a traditional Chinese medicine antiviral extract to obtain far infrared antibacterial anti-mite antiviral multifunctional nano particles; and mixing and spinning the functional particles with a fiber matrix to obtain the far infrared antibacterial, anti-mite and antiviral multifunctional fiber. The multifunctional fiber obtained by the invention can be used for preparing mattress protection pads, and has obviously improved strength and durability.
Description
Technical Field
The invention belongs to the technical field of functional fiber materials, and particularly relates to a far infrared antibacterial, anti-mite and antiviral multifunctional fiber and a mattress protection pad.
Background
The far infrared fiber textile is a textile with the function of absorbing and emitting far infrared rays at normal temperature, and the far infrared fiber is a novel fiber which is widely focused in recent years and is put into production and use, and is prepared by adding a far infrared absorbent, such as far infrared ceramic powder and the like, in the fiber processing process, is a positive and efficient heat insulation material, and simultaneously, the radiated far infrared rays also have the effects of activating cell tissues, promoting blood circulation, inhibiting bacteria and deodorizing.
The antibacterial and mildew-proof fiber is prepared by compounding antibacterial materials and fiber materials, has antibacterial, sterilizing and mildew-proof functions, and can prevent infection and infection. The conventional preparation method comprises a mixing method and a post-treatment method. The mixing method is that inorganic antibacterial powder materials containing silver, copper, zinc and other elements are mixed into materials such as polyester, polyamide, polyacrylonitrile and the like for spinning; the post-treatment method is to impregnate the formed fiber material with an organic antibacterial agent such as a quaternary ammonium salt antibacterial agent or fatty imide.
The antiviral fiber is generally a functional fiber obtained by treating an antiviral component through a mixing method or a post-treatment method, and the generally adopted antiviral component is an antiviral component of a traditional Chinese medicine extract, and has the advantages of low cost, environment friendliness and good antiviral effect.
In the preparation of functional fibers, the common technical problem is that the addition of functional materials adversely affects the strength and durability of the fibers, which can be reduced by improving their dispersibility in the fiber matrix. In the previous research of the applicant, the loading of inorganic functional materials by silica aerogel microspheres (CN 114775095A) or the surface modification of porous silica and a silane coupling agent (CN 114808172A) has achieved better effects. However, improving the dispersibility of functional materials has limited effect on improving the strength and durability of fibers, and is often not satisfactory for products requiring high strength and durability, such as mattress pads.
In our earlier patent CN113652766B, a preparation method of a compound deodorizing antibacterial antiviral multifunctional fiber is disclosed, polyvinyl alcohol is used as a coating agent of an antiviral component of traditional Chinese medicine and an organosilicon quaternary ammonium salt antibacterial agent, and the mixing and dispersion of the antiviral component of traditional Chinese medicine and the organosilicon quaternary ammonium salt antibacterial agent in a fiber matrix are promoted; meanwhile, an interpenetrating network is formed by hydrolysis and condensation reaction of silicate compounds and polyvinyl alcohol, so that the antiviral components of the traditional Chinese medicine and the organosilicon quaternary ammonium salt antibacterial agent are further stabilized, and an enhanced structure is formed. The fiber matrix can achieve lasting deodorizing, antibacterial and antiviral effects and enhance the fiber strength. The above-described patent technology provides a viable approach to improving the strength and durability of functional fibers. However, the difficulty of the reinforced structure on process control is high, and the stability of the product is still to be improved. Therefore, there is a need to develop a fiber reinforcement that is easy to add and stable to control.
Silicone rubber is widely used because of its excellent mechanical properties, heat resistance, cold resistance, aging resistance and the like, but the simple silicone rubber generally exists in the form of an unchangeable thermosetting elastomer, has low rigidity, cannot be used for preparing nano-scale powder products, has poor compatibility with fiber materials, has strong hydrophobic and oleophobic properties, and is difficult to form good dispersion in the fiber materials and achieve the reinforcing effect by a simple melt mixing or solution mixing mode.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the primary purpose of the invention is to provide a preparation method of far infrared antibacterial, anti-mite and antiviral multifunctional fiber.
The invention also aims to provide the far infrared antibacterial, anti-mite and antiviral multifunctional fiber prepared by the method.
The invention also aims to provide a mattress protection pad prepared from the far infrared antibacterial, anti-mite and antiviral multifunctional fiber.
The invention aims at realizing the following technical scheme:
a preparation method of far infrared antibacterial, anti-mite and antiviral multifunctional fiber comprises the following preparation steps:
(1) Preparation of cationic modified silicone rubber reinforcing particles:
dissolving hydroxyl silicone oil in an organic solvent, adding fumed silica, stirring and dispersing uniformly, adding amino trimethoxy silane at 50-80 ℃ under the air condition of conventional humidity (humidity is 35% -75%) for crosslinking reaction, adding 2, 3-epoxypropyl trimethyl ammonium chloride for cationization reaction, and removing the organic solvent from the product by vacuum drying to obtain cation modified silicone rubber reinforced particles;
(2) The preparation of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles comprises the following steps:
adding nano far infrared powder and nano antibacterial anti-mite powder into silica sol, stirring and mixing uniformly, then adding a silane coupling agent for surface gel reaction, vacuum drying at 120-200 ℃, and crushing to obtain porous silica and an inorganic nano powder material with the surface modified by the silane coupling agent; then adding the mixture into the Chinese medicine antiviral extract for adsorption treatment, and freeze-drying to obtain far infrared antibacterial, anti-mite and antiviral multifunctional nano particles;
(3) Preparation of multifunctional fiber materials:
mixing and spinning the cationic modified silicone rubber reinforced particles obtained in the step (1), the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles obtained in the step (2) and a fiber matrix; or mixing and granulating the cation modified silicone rubber reinforced particles, the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles and a fiber matrix to obtain functional master batches, and mixing and spinning the functional master batches and the fiber matrix to obtain the far infrared antibacterial, anti-mite and antiviral multifunctional fiber.
Further, the hydroxyl silicone oil in the step (1) is low molecular weight hydroxyl silicone oil with the viscosity (25 ℃) of 50-500 cst; the organic solvent is isopropanol, benzene or toluene. Too high molecular weight of the hydroxyl silicone oil can cause insufficient crosslinking density, reduced reactivity, and adhesion between the silicone rubber reinforced particles, and thus the reinforced particles with good dispersion performance can not be obtained.
Further, the addition amount of the fumed silica in the step (1) is 5-20% of the mass of the hydroxyl silicone oil. The fumed silica is added to play a role in reinforcing and nucleating, and the particle size of the silicon rubber reinforcing particles is controlled, so that the silicon rubber reinforcing particles are conveniently added into a fiber matrix and the reinforcing effect is achieved.
Further, the amino trimethoxysilane in the step (1) is at least one selected from amino propyl trimethoxysilane, amino ethyl amino propyl trimethoxysilane and divinyl triamine propyl trimethoxysilane; the addition amount of the amino trimethoxysilane is 3-12% of the mass of the hydroxyl silicone oil. The addition of the amino trimethoxy silane is too low, so that the crosslinking degree is insufficient, adhesion is generated among the silicon rubber reinforced particles, and the reinforced particles with good dispersion performance cannot be obtained; too high an amount of amino trimethoxysilane added leads to an increase in cost.
Further, the addition amount of the 2, 3-epoxypropyl trimethyl ammonium chloride in the step (1) is 0.5 to 1 time of the molar amount of the amino trimethoxysilane. The invention utilizes the ring-opening reaction of amino group of amino trimethoxy silane and 2, 3-epoxypropyl trimethyl ammonium chloride to carry out cationization, the excessive monomer is difficult to remove due to the excessively high addition amount of 2, 3-epoxypropyl trimethyl ammonium chloride, the cationization degree is insufficient due to the excessively low addition amount, and the dispersibility and the reinforcing effect of the obtained silicon rubber reinforcing particles are reduced.
Further, the nanometer far infrared powder in the step (2) is at least one of far infrared ceramic powder, taiji stone powder, vermiculite raw ore powder, medical stone raw ore powder, nanometer zirconium dioxide powder and nanometer manganese oxide powder; the nanometer antibacterial anti-mite powder is at least one of silver oxide powder, lanthanum oxide powder, zinc oxide powder, titanium dioxide powder, copper oxide powder, magnesium oxide powder and silver iodide powder.
Further, in the step (2), the solid content of the silica sol is 10% -30%, and the particle size is 5-80 nm.
Further, the ratio of the total mass of the nanometer far infrared powder and the nanometer antibacterial anti-mite powder in the step (2) to the mass of the silica sol is 1:1-4.
Further, the silane coupling agent in the step (2) refers to a silane coupling agent containing carboxyl (such as 3- [ 3-carboxyl allylamido ] propyl triethoxysilane) or a silane coupling agent containing amino (such as aminopropyl trimethoxysilane, aminoethyl aminopropyl trimethoxysilane, aminopropyl triethoxysilane, aminoethyl aminopropyl triethoxysilane and the like), and the porous material obtained by carrying out surface modification on the silane coupling agent containing active groups has better adsorption effect on the antiviral active components of the traditional Chinese medicine; the addition amount of the silane coupling agent is 0.1-5% of the mass of the silica sol.
Further, the antiviral extract of the traditional Chinese medicine in the step (2) comprises at least one extract of traditional Chinese medicine components of wormwood, radix isatidis, dandelion, honeysuckle, wild chrysanthemum, dyers woad leaf, common andrographis herb, baical skullcap root, coptis root, amur corktree bark, chinese thorowax root, cyrtomium rhizome, weeping forsythia, giant knotweed rhizome, blackberry lily, rhubarb, heartleaf houttuynia herb, elsholtzia herb, fortune eupatorium herb, biota orientalis leaf, manyflower solomonseal rhizome, chinese magnoliavine fruit, great burdock achene, divaricate saposhnikovia root, perilla, verbena, rabdosia rubescens, lightyellow sophora root, figwort root, white dandelion, fructus kochiae, indian mockstrawberry herb, bezoar, lithospermum, pericarpium citri, ageratum and peppermint.
Further, the adsorption treatment in the step (2) is carried out under the conditions of ultrasonic and vacuum stirring, and the adsorption treatment time is 0.5-4 h.
Further, in the step (3), the fiber matrix is polyester, polyamide, polyacrylonitrile, polyurethane, polyvinyl alcohol, polylactic acid, poly (adipic acid)/butylene terephthalate, cellulose acetate, polycaprolactone, polyhydroxyalkanoate, or poly (butylene succinate).
Further, the mixed spinning in step (3) includes melt blending spinning or solution blending spinning.
Further, in the far infrared antibacterial, anti-mite and antiviral multifunctional fiber in the step (3), the addition of the cationic modified silicone rubber reinforced particles is 1-10% of the mass of the fiber matrix, and the addition of the far infrared antibacterial, anti-mite and antiviral multifunctional nanoparticles is 1-15% of the mass of the fiber matrix; in the functional master batch, the addition of the cationic modified silicone rubber reinforced particles is 5-20% of the mass of the fiber matrix, and the addition of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles is 5-30% of the mass of the fiber matrix.
The far infrared antibacterial, anti-mite and antiviral multifunctional fiber is prepared by the method.
A far infrared antibacterial, anti-mite and antiviral multifunctional mattress protection pad is prepared by the following method:
weaving and compounding the far infrared antibacterial, anti-mite and antiviral multifunctional fiber, obtaining double-sided functional composite cloth through technologies such as cotton gathering, ultrasonic wave, embroidery, computerized embroidery and the like, and compounding the double-sided functional composite cloth into a mattress according to the size of the mattress to obtain the far infrared antibacterial, anti-mite and antiviral multifunctional mattress protection mattress.
Compared with the prior art, the invention has the beneficial effects that:
(1) The cationic modified silicone rubber reinforced particles prepared by the specific method are used for reinforcing the fiber matrix, the conventional silicone rubber material cannot be prepared into nanoscale products due to low rigidity, has poor compatibility with the fiber material, has strong hydrophobic and oleophobic characteristics, and is difficult to form good dispersion in the fiber material in a simple melt mixing or solution mixing mode, and the reinforcing effect is achieved. According to the invention, fumed silica is used as a particle nucleating agent and a reinforcing agent, nanoscale silicon rubber reinforcing particles can be obtained through specific crosslinking and cationization reaction, and the mechanical property and the ageing resistance of the fiber material can be obviously improved through verification.
(2) The invention adopts the inorganic nano powder material with the surface modified by porous silica and the silane coupling agent, improves the dispersibility of the inorganic nano powder material in a fiber matrix, and can be used as an adsorption carrier of the traditional Chinese medicine antiviral extract liquid to endow the fiber material with corresponding health care effects of far infrared, antibiosis, mite prevention, antiviral and the like.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
The traditional Chinese medicine antiviral extract described in the following examples is prepared by the following method:
according to the mass parts, 30 parts of radix isatidis, 20 parts of dandelion, 20 parts of honeysuckle, 10 parts of wild chrysanthemum, 10 parts of dyers woad leaf, 10 parts of common andrographis herb, 5 parts of pericarpium citri reticulatae, 5 parts of ageratum and 5 parts of mint are added into 500 parts of ethanol aqueous solution for decoction, and the filtrate is filtered and concentrated, and the volume fraction of ethanol is adjusted to 40%, so that the traditional Chinese medicine antiviral extract is obtained.
Example 1
The preparation method of the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber comprises the following preparation steps:
(1) Preparation of cationic modified silicone rubber reinforcing particles:
according to parts by weight, 100 parts of hydroxyl silicone oil with the viscosity (25 ℃) of 120cst is dissolved in isopropanol, then 10 parts of fumed silica is added, stirring and dispersing are carried out uniformly, the system is heated to 65-75 ℃, 6 parts of aminoethylaminopropyl trimethoxy silane is added for crosslinking reaction for 1.5 hours (the reaction is carried out under the condition of normal humidity air), then 2, 3-epoxypropyl trimethyl ammonium chloride with the mol of 0.8 times of the aminoethylaminopropyl trimethoxy silane is added for cationization reaction for 3 hours, and after the reaction is finished, the solvent is removed from the product through vacuum drying, thus obtaining the cation modified silicone rubber reinforced particles.
(2) The preparation of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles comprises the following steps:
adding 50 parts by mass of far infrared ceramic powder and 50 parts by mass of nano silver oxide antibacterial mite-proof powder into 200 parts by mass of silica sol (solid content is 15%, particle size is 30-50 nm), stirring and mixing uniformly, then adding 4 parts by mass of 3- [ 3-carboxyl allylamido ] propyl triethoxysilane for surface gel reaction, vacuum drying at 150-160 ℃, and crushing to particle size smaller than 1 mu m to obtain porous silica and surface modified inorganic nano powder material; then adding the mixture into an antiviral extract of the traditional Chinese medicine (by mass, adding 30 parts of wormwood, 30 parts of isatis root, 10 parts of dandelion, 10 parts of honeysuckle, 10 parts of wild chrysanthemum and 10 parts of dyers woad leaf into 500 parts of ethanol water solution for decoction, filtering, concentrating filtrate, adjusting the volume fraction of ethanol to 40%, and obtaining the antiviral extract of the traditional Chinese medicine), carrying out adsorption treatment for 2 hours under ultrasonic and vacuum stirring conditions, filtering, taking solid matters for freeze drying, and obtaining the far infrared antibacterial anti-mite antiviral multifunctional nano particles.
(3) Preparation of multifunctional fiber materials:
according to the mass parts, the cation modified silicon rubber reinforced particles obtained in the step (1), 10 parts of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles obtained in the step (2) and 100 parts of polyester chips are subjected to melt blending spinning by an extruder, so that the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber is obtained.
The amounts of the cationic modified silicone rubber reinforcing particles of the present example were adjusted to 0 part, 1 part, 2 parts, 4 parts, 6 parts, 8 parts, and 10 parts, respectively, and the mechanical strength (ISO 5079-1995) and aging resistance (AATCC 186-2009, UV-A type fluorescent lamp, irradiation strength of 0.77W/m) of the obtained polyester fiber were tested 2 The irradiation time was 720h and the relative humidity was 65.+ -. 2%, and the results are shown in Table 1 below.
TABLE 1
As can be seen from the results in Table 1, the mechanical strength and the aging resistance of the fiber material, particularly the aging resistance, can be remarkably improved by adding the cationic modified silicone rubber reinforcing particles of the present invention to the fiber matrix.
Example 2
The preparation method of the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber comprises the following preparation steps:
(1) Preparation of cationic modified silicone rubber reinforcing particles:
according to parts by weight, 100 parts of hydroxyl silicone oil with the viscosity (25 ℃) of 50cst, 100cst, 200cst, 500cst and 1000cst are respectively dissolved in isopropanol, then 10 parts of fumed silica is added, stirring and dispersing are carried out uniformly, the system is heated to 65-75 ℃, 6 parts of aminoethylaminopropyl trimethoxysilane is added for carrying out crosslinking reaction for 1.5 hours (the reaction is carried out under the condition of normal humidity air), then 2, 3-epoxypropyl trimethyl ammonium chloride with the mol weight of 0.8 times of the aminoethylaminopropyl trimethoxysilane is added for carrying out cationization for 3 hours, and after the reaction is finished, the product is dried in vacuum to remove the solvent, thus obtaining the cation modified silicone rubber reinforced particles.
(2) The preparation of the far infrared antibacterial, anti-mite and antiviral multifunctional nanoparticle is the same as in example 1.
(3) Preparation of multifunctional fiber materials:
according to the mass parts, 8 parts of the cationic modified silicone rubber reinforced particles obtained in the step (1), 10 parts of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles obtained in the step (2) and 100 parts of polyester chips are subjected to melt blending spinning by an extruder, so that the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber is obtained.
The morphology and D90 particle diameter of the silicone rubber reinforced particles obtained by the hydroxyl silicone oils of different viscosities of this example were tested, and the mechanical strength of the obtained multifunctional polyester fiber was tested, and the results are shown in table 2 below.
TABLE 2
| Viscosity of hydroxy silicone oil | 50cst | 100cst | 200cst | 500cst | 1000cst |
| Morphology and particle size | 310nm | 380nm | 430nm | 950nm | Adhesive joint block |
| Breaking strength | 5.5cN/dtex | 6.0cN/dtex | 6.3cN/dtex | 6.6cN/dtex | ---- |
| Elongation at break | 42％ | 55％ | 59％ | 61％ | ---- |
As is clear from the results of table 2, the reinforcing effect of the obtained silicone rubber reinforcing particles was enhanced with an increase in the viscosity (molecular weight) of the hydroxy silicone oil, but too high a viscosity of the hydroxy silicone oil resulted in a decrease in the reactivity and insufficient crosslinking density, and an adhesive mass was generated between the silicone rubber reinforcing particles, and the reinforcing particles having good dispersibility could not be obtained.
Example 3
The preparation method of the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber comprises the following preparation steps:
(1) Preparation of cationic modified silicone rubber reinforcing particles:
100 parts of hydroxyl silicone oil with the viscosity (25 ℃) of 120cst is dissolved in isopropanol according to parts by weight, then 10 parts of fumed silica is added, stirring and dispersing are carried out uniformly, the system is heated to 65-75 ℃, 6 parts of aminoethylaminopropyl trimethoxysilane is added for carrying out crosslinking reaction for 1.5 hours (the reaction is carried out under the condition of normal humidity air), then 2, 3-epoxypropyl trimethyl ammonium chloride with the mol weight of 0 times, 0.3 times, 0.5 times, 0.6 times, 0.7 times, 0.9 times and 1.0 times of that of the aminoethylaminopropyl trimethoxysilane is respectively added for carrying out cationization reaction for 3 hours, and the solvent is removed from the product through vacuum drying after the reaction is finished, so that the cation modified silicone rubber reinforced particles are obtained.
(2) The preparation of the far infrared antibacterial, anti-mite and antiviral multifunctional nanoparticle is the same as in example 1.
(3) Preparation of multifunctional fiber materials:
according to the mass parts, 8 parts of the cationic modified silicone rubber reinforced particles obtained in the step (1), 10 parts of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles obtained in the step (2) and 100 parts of polyester chips are subjected to melt blending spinning by an extruder, so that the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber is obtained.
The morphology and D90 particle size of the silicone rubber reinforcing particles obtained in the present example at different cationization levels were tested, and the mechanical strength of the obtained multifunctional polyester fiber was tested, and the results are shown in table 3 below.
TABLE 3 Table 3
| Cation addition amount | 0 | 0.3 times of | 0.5 times | 0.6 times of | 0.7 times of | 0.9 times of | 1.0 times |
| Particle size | 880nm | 550nm | 430nm | 180nm | 140nm | 90nm | 80nm |
| Breaking strength | 4.8cN/dtex | 5.4cN/dtex | 5.5cN/dtex | 5.7cN/dtex | 5.8cN/dtex | 6.2cN/dtex | 6.3cN/dtex |
| Elongation at break | 39％ | 49％ | 51％ | 54％ | 54％ | 61％ | 60％ |
As can be seen from the results in table 3, the degree of cationization has a remarkable influence on the particle size and reinforcing effect of the obtained silicone rubber reinforcing particles, because the higher the degree of cationization, the greater the electrostatic repulsive force of the silicone rubber reinforcing particles in the nucleation process, and the degree of cohesive groups among the particles is reduced, so that the particle size is reduced, and meanwhile, agglomeration is reduced in the process of blending and spinning with the fiber material, and finally, the dispersibility of the silicone rubber reinforcing particles in the fiber material is improved and the better effect of reinforcing the mechanical property is achieved. When no cationic modification is adopted, the particle size of the silicone rubber reinforcing particles is increased, and the reinforcing effect on the fiber material is obviously reduced, because the compatibility of the silicone rubber particles which are not modified by the cations and the fiber matrix material is poor, obvious agglomeration tendency exists, and the reinforcing effect is reduced.
Comparative example 1
In comparison with example 1, the preparation method adopts the fumed silica with the surface modified by the amino ethyl amino propyl trimethoxy silane to replace the cationic modified silicone rubber reinforced particles, and comprises the following specific preparation steps:
(1) Preparation of surface-modified fumed silica reinforcing particles:
100 parts of fumed silica is stirred and dispersed in isopropanol solvent according to parts by weight, the system is heated to 65-75 ℃, 6 parts of aminoethylaminopropyl trimethoxysilane is added for surface modification reaction for 1.5 hours (the reaction is carried out under the condition of normal humidity air), and after the reaction is finished, the product is dried in vacuum to remove the solvent, so that the surface modified fumed silica reinforced particles are obtained.
(2) The preparation of the far infrared antibacterial, anti-mite and antiviral multifunctional nanoparticle is the same as in example 1.
(3) Preparation of multifunctional fiber materials:
according to the mass parts, 8 parts of the surface modified fumed silica reinforced particles obtained in the step (1), 10 parts of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles obtained in the step (2) and 100 parts of polyester chips are subjected to melt blending spinning by an extruder, so that the far infrared antibacterial, anti-mite and antiviral multifunctional polyester fiber is obtained.
Far infrared performance test (CAS 115-2005, health functional textile), antibacterial performance test (according to "GB/T20944.3-2008 oscillation method"; test bacteria are staphylococcus aureus and escherichia coli), anti-mite effect test (according to GB/T24253-2009,9.2 inhibition method; test organism is dust mite, incubation time is 7 days; control sample is 100% cotton fabric without any treatment, after high temperature steaming and distilled water washing as control sample), antiviral performance (ISO 18184-2014, test virus coronavirus Hcov-229E), mechanical strength and anti-aging performance test were performed on the multifunctional fibers obtained in the above example 1 (the addition amount of the cationic modified silicone rubber reinforcing particles is 8 parts as test sample), and the results are shown in the following table 4.
TABLE 4 Table 4
As can be seen from the results in Table 4, the multifunctional fiber material obtained by the invention has good health care effects of far infrared ray, antibiosis, mite prevention, antivirus and the like. Compared with the fiber material reinforced by the surface modified fumed silica, the cationic modified silicone rubber reinforced particles have more remarkable reinforcing effect on the fiber material, and particularly have more remarkable ageing resistance improving effect on the fiber material.
Example 4
The far infrared antibacterial, anti-mite and antiviral multifunctional mattress protection pad is prepared by the following method:
far infrared antibacterial, anti-mite and antiviral multifunctional fiber (according to the preparation method of the embodiment 1, the fiber matrix comprises polyester, cellulose acetate, polyacrylonitrile, polyurethane, polyvinyl alcohol, polylactic acid, poly (adipic acid)/butylene terephthalate and the like) is woven into cloth (woven cloth+non-woven cloth), then double-sided functional composite cloth is obtained through a double-composite cloth manufacturing process (including but not limited to pleat cotton, ultrasonic wave, embroidery, computerized embroidery … … and the like), and then the double-sided functional composite cloth is compounded into a mattress according to the size of the mattress, so that the far infrared antibacterial, anti-mite and antiviral multifunctional mattress protection pad is obtained.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (10)
1. The preparation method of the far infrared antibacterial, anti-mite and antiviral multifunctional fiber is characterized by comprising the following preparation steps:
(1) Preparation of cationic modified silicone rubber reinforcing particles:
dissolving hydroxyl silicone oil in an organic solvent, adding fumed silica, stirring and dispersing uniformly, adding amino trimethoxy silane at 50-80 ℃ under the air condition of conventional humidity for crosslinking reaction, adding 2, 3-epoxypropyl trimethyl ammonium chloride for cationization reaction, and removing the organic solvent from the product by vacuum drying to obtain cation modified silicone rubber reinforced particles;
(2) The preparation of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles comprises the following steps:
adding nano far infrared powder and nano antibacterial anti-mite powder into silica sol, stirring and mixing uniformly, then adding a silane coupling agent for surface gel reaction, vacuum drying at 120-200 ℃, and crushing to obtain porous silica and an inorganic nano powder material with the surface modified by the silane coupling agent; then adding the mixture into the Chinese medicine antiviral extract for adsorption treatment, and freeze-drying to obtain far infrared antibacterial, anti-mite and antiviral multifunctional nano particles;
(3) Preparation of multifunctional fiber materials:
the cationic modified silicon rubber reinforced particles obtained in the step (1) and the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles obtained in the step (2) are melt blended with a fiber matrix for spinning; or mixing the cation modified silicone rubber reinforced particles, the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles and a fiber matrix, granulating to obtain functional master batches, and melt blending and spinning the functional master batches and the fiber matrix to obtain the far infrared antibacterial, anti-mite and antiviral multifunctional fiber;
the hydroxy silicone oil in the step (1) is low molecular weight hydroxy silicone oil with the viscosity of 50-500 cst; the addition amount of the amino trimethoxysilane is 3% -12% of the mass of the hydroxyl silicone oil; the addition amount of the 2, 3-epoxypropyl trimethyl ammonium chloride is 0.5-1 time of the molar amount of the amino trimethoxy silane.
2. The method for preparing the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein the organic solvent in the step (1) is isopropanol, benzene or toluene; the addition amount of the fumed silica is 5% -20% of the mass of the hydroxyl silicone oil.
3. The method for preparing the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein the amino trimethoxysilane in the step (1) is at least one selected from the group consisting of amino propyl trimethoxysilane, amino ethyl amino propyl trimethoxysilane and divinyl triamine propyl trimethoxysilane.
4. The method for preparing the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein the nano far infrared powder in the step (2) is at least one of far infrared ceramic powder, taiji stone powder, vermiculite raw ore powder, medical stone raw ore powder, nano zirconium dioxide powder and nano manganese oxide powder; the nanometer antibacterial anti-mite powder is at least one of silver oxide powder, lanthanum oxide powder, zinc oxide powder, titanium dioxide powder, copper oxide powder, magnesium oxide powder and silver iodide powder; the solid content of the silica sol is 10% -30%, and the particle size is 5-80 nm; the ratio of the total mass of the nanometer far infrared powder and the nanometer antibacterial anti-mite powder to the mass of the silica sol is 1:1-4.
5. The method for preparing the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein the silane coupling agent in the step (2) is a carboxyl-containing silane coupling agent or an amino-containing silane coupling agent; the addition amount of the silane coupling agent is 0.1% -5% of the mass of the silica sol.
6. The method for preparing the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein the antiviral extract of the traditional Chinese medicine in the step (2) comprises at least one extract of Chinese herbal medicines including wormwood, radix isatidis, dandelion, honeysuckle, wild chrysanthemum flower, dyers woad leaf, common andrographis herb, baical skullcap root, golden thread, amur corktree bark, chinese thorowax root, cyrtomium rhizome, weeping forsythia, giant knotweed, blackberry lily rhizome, rhubarb, heartleaf houttuynia herb, elsholtzia herb, eupatorium, biota oriental arborvitae, rhizoma polygonati, chinese magnoliavine fruit, burdock, divaricate saposhnikovia root, perilla, verbena, rabdosia rubescens, lightyellow sophora root, white nightshade, fructus kochiae, indian mockstrawberry herb, cow-bezoar, dried orange peel, ageratum and peppermint; the adsorption treatment is carried out under the conditions of ultrasonic and vacuum stirring, and the adsorption treatment time is 0.5-4 h.
7. The method for preparing the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein the fiber matrix in the step (3) is polyester, polyamide, polyurethane or polyvinyl alcohol.
8. The preparation method of the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 1, wherein in the far infrared antibacterial, anti-mite and antiviral multifunctional fiber in the step (3), the addition amount of the cationic modified silicone rubber reinforced particles is 1% -10% of the mass of a fiber matrix, and the addition amount of the far infrared antibacterial, anti-mite and antiviral multifunctional nanoparticles is 1% -15% of the mass of the fiber matrix; in the functional master batch, the addition amount of the cationic modified silicone rubber reinforced particles is 5-20% of the mass of the fiber matrix, and the addition amount of the far infrared antibacterial, anti-mite and antiviral multifunctional nano particles is 5-30% of the mass of the fiber matrix.
9. A far infrared antibacterial, anti-mite and antiviral multifunctional fiber, characterized by being prepared by the method of any one of claims 1-8.
10. A far infrared antibacterial, anti-mite and antiviral multifunctional mattress protection pad is characterized by being prepared by the following method:
weaving and compounding the far infrared antibacterial, anti-mite and antiviral multifunctional fiber according to claim 9, obtaining double-sided functional composite cloth through a cotton-gathering, ultrasonic, embroidery and computerized embroidery process, and compounding into a mattress according to the size of the mattress, thus obtaining the far infrared antibacterial, anti-mite and antiviral multifunctional mattress protection mattress.
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