阅读说明：本技术 一种磁性涤纶面料及其制备方法 (Magnetic polyester fabric and preparation method thereof ) 是由 陈丽芳 于 2020-12-16 设计创作，主要内容包括：本发明提供了一种磁性涤纶面料,所述磁性面料通过后整理接枝的方式,将含有磁性颗粒的载体接枝到涤纶面料上,所述涤纶面料为通过含有氧化石墨烯的纱线织造而成,氧化石墨烯的含量为1-3wt％,所述载体为纳米二氧化硅。本发明提供磁性涤纶面料,其磁场分布均匀,耐用性好,可以通过后整理叠加一些其他的功能性,以改善其服用性能和穿着舒适性。(The invention provides a magnetic polyester fabric, which is characterized in that a carrier containing magnetic particles is grafted to the polyester fabric in a post-finishing grafting manner, the polyester fabric is woven by yarns containing graphene oxide, the content of the graphene oxide is 1-3 wt%, and the carrier is nano silicon dioxide. The magnetic terylene fabric provided by the invention has uniform magnetic field distribution and good durability, and can be superposed with other functionalities through after finishing to improve the wearability and wearing comfort.)

1. A magnetic terylene face fabric is characterized in that: the magnetic fabric is characterized in that a carrier containing magnetic particles is grafted to a polyester fabric in a post-finishing grafting mode, the polyester fabric is woven by yarns containing graphene oxide, the content of the graphene oxide is 1-3 wt%, and the carrier is nano silicon dioxide.

2. The preparation method of the magnetic fabric is characterized by comprising the following steps of:

s1, preparing a polyester fabric containing graphene oxide: knitting, weaving or non-weaving yarns which contain graphene oxide polyester fibers or are formed by blending the graphene oxide fibers and polyester staple fibers to form a polyester fabric containing graphene oxide;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding into ethanol for ultrasonic dispersion to obtain magnetic Fe₃O₄Dispersing liquid, then adding ammonia water, stirring uniformly, adding ethyl orthosilicate for reaction, washing and drying to obtain magnetic Fe₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nano particles into water, performing ultrasonic treatment to obtain a magnetic particle aqueous solution, then adding an aqueous solution containing a silane coupling agent, reacting at a certain temperature, and dialyzing to obtain the modified magnetic Fe with the composite grafting specification₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: soaking the polyester fabric containing the graphene oxide prepared in the step S1 in a modified magnetic Fe-containing fabric₃O₄@SiO₂And (3) in the finishing liquid of the nano particles, washing and drying the finished fabric, and soaking the fabric in pure water to obtain the magnetic fabric.

3. The method for preparing the magnetic fabric according to claim 2, characterized in that: in the step S1, the polyester fiber containing graphene oxide particles is a polyester fiber containing graphene oxide particles.

4. The method for preparing the magnetic fabric according to claim 3, wherein the method comprises the following steps: the particle size of the graphene oxide particles is 80-140 nm.

5. The method for preparing the magnetic fabric according to claim 2, characterized in that: magnetic Fe in step S2₃O₄Of 1.5 to 3.5 wt%, the said ethyl orthosilicateEsters and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 80-120 and the reaction time is 10-30 h.

6. The method for preparing the magnetic fabric according to claim 2, characterized in that: in step S3, the concentration of the magnetic particle aqueous solution is 10-30 wt%, the ultrasonic treatment time is 30-65min, the ultrasonic temperature is 30-60 ℃, the concentration of the silane coupling agent aqueous solution is 5-15 wt%, the volume ratio of the magnetic particle aqueous solution to the silane coupling agent aqueous solution is 1:1, the reaction temperature of the two solutions is 60-80 ℃, and the reaction time is 15-30 h.

7. The method for preparing the magnetic fabric according to claim 2, characterized in that: in the step S4, the concentration of the finishing liquid is 3-5 wt%, the dipping time is 10-30h, and the temperature is 30-40 ℃.

8. The method for preparing the magnetic fabric according to claim 2, characterized in that: the preparation steps comprise the following steps of after-finishing the magnetic fabric, wherein the after-finishing comprises any one or the combination of more than two of soft finishing, antistatic finishing and antibacterial finishing.

Technical Field

The invention relates to the field of functional fabrics, in particular to a magnetic polyester fabric and a preparation method thereof.

Background

Magnetism is a substance objectively existing in nature, and most organisms on the earth have certain weak magnetism. For human beings, the magnetic field is not strange, the earth itself is a huge magnet, the magnetic field is filled in every corner of the earth, and the existence and development of the human beings can not be separated from the action of the magnetic field. The lack of magnetic action of human body can cause diseases such as vegetative nerve functional disturbance, cell activity reduction, thrombus, etc. The development of the magnetic textile is based on the theoretical basis that human cells are a magnetic micro-body, the change of an external magnetic field can influence the physiological activity of the human body, and the change of electric charge, electric potential, molecular structure, biochemistry and physiological functions can be generated through a nerve system and a body fluid system, so that the body function of the human body can be adjusted and the disease resistance can be improved, and therefore, the magnetic textile has good medical health care effect.

The preparation method of the magnetic textile mainly comprises the following steps: the fiber is used as a matrix to carry out physical and chemical modification, and the magnetic textile is prepared through the working procedures of weaving and the like; or after-finishing various textiles such as fabrics, non-woven fabrics and the like to prepare the magnetic textiles.

(1) The dipping method comprises the following steps:

the dipping method is to obtain the magnetic textile by dipping the fabric in the nano magnetic fluid. The process for obtaining the magnetic fabric by the dipping method is simple and convenient, but the fabric has poor hand feeling and the magnetism is gradually weakened along with the increase of the washing times.

(2) Coating method

The coating method is to uniformly coat the magnetic substance on the surface of the fabric by adopting a proper method to obtain the magnetic textile. The coating method is simple and convenient to operate, but the coating is easy to fall off in the daily use process, so that the durability of the coating is influenced.

(3) Physical or chemical modification method using fiber as matrix

The method is an indirect finishing method, firstly, the fiber is physically or chemically modified, so that the surface or the interior of the finished fiber contains a magnetic modifier, and then the modified fiber is processed by spinning to prepare the magnetic textile. The method for obtaining the magnetic fiber mainly comprises an immersion method, a blending modification method, a fiber cavity filling method, a positioning synthesis method, a surface coating method, an electroplating method and the like. The magnetic textile prepared by the method has uniform magnetic field distribution and better durability.

However, with the rapid development of social economy, high buildings in cities stand and various pipeline electric wires are distributed everywhere, so that the geomagnetic field around human bodies is weakened or even blocked. Most people have serious magnetic shortage, which greatly harms the health of people. In addition, the magnetic field strength of the earth is weakened, so that the biological magnetic field and the environmental magnetic field are unbalanced. The earth magnetic field can shield cosmic rays and high-energy particles, and the like, so that the human beings can directly contact the high-energy particles, X rays and the like in the universe without the protection of the earth magnetic field, and the human beings can threaten the life of the human beings to a certain extent. From the beginning of human civilization, textiles played a very important role, and human beings touched textiles for a long time. The development of magnetic textiles to supplement the magnetism required for human life activities is therefore imminent.

Disclosure of Invention

The technical problem to be solved is as follows: the invention aims to provide a magnetic terylene fabric which has uniform magnetic field distribution and good durability, and can improve the wearability and wearing comfort by superposing other functionalities through after finishing.

The technical scheme is as follows: a magnetic polyester fabric is characterized in that a carrier containing magnetic particles is grafted to the polyester fabric in a post-finishing grafting mode, the polyester fabric is woven through yarns containing graphene oxide, the content of the graphene oxide is 1-3 wt%, and the carrier is nano silicon dioxide.

A preparation method of a magnetic fabric comprises the following steps:

s1, preparing a polyester fabric containing graphene oxide: knitting, weaving or non-weaving yarns which contain graphene oxide polyester fibers or are formed by blending the graphene oxide fibers and polyester staple fibers to form a polyester fabric containing graphene oxide;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding into ethanol for ultrasonic dispersion to obtain magnetic Fe₃O₄Dispersing liquid, then adding ammonia water, stirring uniformly, adding ethyl orthosilicate for reaction, washing and drying to obtain magnetic Fe₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nano particles into water, performing ultrasonic treatment to obtain a magnetic particle aqueous solution, then adding an aqueous solution containing a silane coupling agent, reacting at a certain temperature, and dialyzing to obtain the modified magnetic Fe with the composite grafting specification₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: soaking the polyester fabric containing the graphene oxide prepared in the step S1 in a modified magnetic Fe-containing fabric₃O₄@SiO₂And (3) in the finishing liquid of the nano particles, washing and drying the finished fabric, and soaking the fabric in pure water to obtain the magnetic fabric.

Preferably, the polyester fiber containing graphene oxide in step S1 is a polyester fiber containing graphene oxide particles.

Preferably, the particle size of the graphene oxide particles is 80-140 nm.

Preferably, the magnetic Fe in step S2₃O₄Of 1.5 to 3.5 wt%, the said tetraethoxysilane and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 80-120 and the reaction time is 10-30 h.

Preferably, in step S3, the concentration of the aqueous solution of magnetic particles is 10-30 wt%, the ultrasonic treatment time is 30-65min, the ultrasonic temperature is 30-60 ℃, the concentration of the aqueous solution of silane coupling agent is 5-15 wt%, the volume ratio of the aqueous solution of magnetic particles to the aqueous solution of silane coupling agent is 1:1, the reaction temperature of the two solutions is 60-80 ℃, and the reaction time is 15-30 h.

Preferably, the concentration of the finishing liquid in the step S4 is 3-5 wt%, the dipping time is 10-30h, and the temperature is 30-40 ℃.

Preferably, the preparation step comprises the step of after-finishing the magnetic fabric, wherein the after-finishing comprises any one or the combination of more than two of soft finishing, antistatic finishing and antibacterial finishing.

Has the advantages that: the invention has the following advantages:

1. according to the invention, the magnetic fabric with uniform magnetic field distribution and good durability is obtained by improving the dispersibility of the magnetic particles on the surface of the fabric;

2. by adding the graphene oxide polyester fibers or the graphene oxide fibers into the fabric, a platform is provided for successfully grafting the nano-silica to the surface of the polyester fabric, the platform is just like a clothes hook on a wall, and the hung clothes are the key points, namely the nano-silica. The graphene oxide contained in the polyester fabric is combined with amino on the surface of nano silicon dioxide to generate amido bond, and the silicon dioxide is loaded with magnetic particles, so that the magnetic particles are attached to the surface of the fabric along with the combination of the silicon dioxide.

Detailed Description

Example 1

A preparation method of a magnetic fabric comprises the following steps:

s1, preparing a polyester fabric containing graphene oxide: forming yarns formed by blending the graphene oxide fibers and the polyester staple fibers into a polyester fabric containing graphene oxide, wherein the blending ratio of the graphene oxide fibers to the polyester staple fibers is 8: 92;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding into ethanol for ultrasonic dispersion to obtain magnetic Fe with the concentration of 1.5 wt%₃O₄Dispersing, adding ammonia water, stirring, adding ethyl orthosilicate, reacting, adding ethyl orthosilicate and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 80, the reaction time is 10h, and the magnetic Fe is obtained by washing and drying₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nano particles into water, carrying out ultrasonic treatment to obtain a magnetic particle aqueous solution with the concentration of 10 wt%, wherein the ultrasonic treatment time is 30min and the ultrasonic temperature is 60 ℃, then adding an aqueous solution containing a silane coupling agent, the concentration of the silane coupling agent aqueous solution is 5 wt%, the volume ratio of the magnetic particle aqueous solution to the silane coupling agent aqueous solution is 1:1, reacting for 30h at the temperature of 60 ℃, and dialyzing to obtain the modified magnetic Fe with the composite grafting specification₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: soaking the polyester fabric containing the graphene oxide prepared in the step S1 in modified magnetic Fe with the concentration of 3-5 wt%₃O₄@SiO₂And (3) soaking the nano particles in the finishing liquid for 10 hours at the temperature of 30 ℃, washing and drying the finished fabric, and soaking the fabric in pure water to obtain the magnetic fabric.

Example 2

A preparation method of a magnetic fabric comprises the following steps:

s1, preparing a polyester fabric containing graphene oxide: forming a polyester fabric containing graphene oxide by using polyester fibers containing graphene oxide, wherein the content of the graphene oxide is 1 wt%, and the particle size of graphene oxide particles is 80 nm;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding into ethanol for ultrasonic dispersion to obtain magnetic Fe with the concentration of 3.5 wt%₃O₄Dispersing, adding ammonia water, stirring, adding ethyl orthosilicate, reacting, adding ethyl orthosilicate and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 120, the reaction time is 30 hours, and the magnetic Fe is obtained after washing and drying₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nano particles into water, performing ultrasonic treatment to obtain a magnetic particle aqueous solution with the concentration of 30 wt%, and performing ultrasonic treatmentTreating for 65min, ultrasonically treating at 30 deg.C, adding aqueous solution containing silane coupling agent at concentration of 15 wt%, and volume ratio of magnetic particle aqueous solution to silane coupling agent aqueous solution of 1:1, reacting at 80 deg.C for 15 hr, and dialyzing to obtain modified magnetic Fe with composite grafting specification₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: soaking the polyester fabric containing the graphene oxide prepared in the step S1 in modified magnetic Fe with the concentration of 3-5 wt%₃O₄@SiO₂And (3) soaking the nano particles in the finishing liquid for 30 hours at the temperature of 40 ℃, washing and drying the finished fabric, and soaking the fabric in pure water to obtain the magnetic fabric.

Example 3

A preparation method of a magnetic fabric comprises the following steps:

s1, preparing a polyester fabric containing graphene oxide: forming yarns formed by blending the graphene oxide fibers and the polyester staple fibers into a polyester fabric containing graphene oxide, wherein the blending ratio of the graphene oxide fibers to the polyester staple fibers is 5: 95;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding into ethanol for ultrasonic dispersion to obtain magnetic Fe with the concentration of 2-3 wt%₃O₄Dispersing, adding ammonia water, stirring, adding ethyl orthosilicate, reacting, adding ethyl orthosilicate and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 90, the reaction time is 15h, and the magnetic Fe is obtained by washing and drying₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nanoparticles into water, performing ultrasonic treatment to obtain a 16 wt% magnetic particle aqueous solution, performing ultrasonic treatment for 40min at 50 ℃, adding an aqueous solution containing a silane coupling agent, wherein the concentration of the silane coupling agent aqueous solution is 5 wt%, and the volume of the magnetic particle aqueous solution and the silane coupling agent aqueous solution isThe mixture is reacted for 25 hours at the temperature of 75 ℃ in the ratio of 1:1, and the modified magnetic Fe with the composite grafting specification is obtained by dialysis₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: soaking the polyester fabric containing the graphene oxide prepared in the step S1 in modified magnetic Fe with the concentration of 5 wt%₃O₄@SiO₂And (3) soaking the nano particles in the finishing liquid for 20 hours at the temperature of 30 ℃, washing and drying the finished fabric, and soaking the fabric in pure water to obtain the magnetic fabric.

Example 4

A preparation method of a magnetic fabric comprises the following steps:

s1, preparing a polyester fabric containing graphene oxide: forming a polyester fabric containing graphene oxide by using polyester fibers containing graphene oxide, wherein the content of the graphene oxide is 1.6 wt%, and the particle size of graphene oxide particles is 80-100 nm;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding into ethanol for ultrasonic dispersion to obtain magnetic Fe with the concentration of 2-3 wt%₃O₄Dispersing, adding ammonia water, stirring, adding ethyl orthosilicate, reacting, adding ethyl orthosilicate and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 100, the reaction time is 25h, and the magnetic Fe is obtained by washing and drying₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nano particles into water, carrying out ultrasonic treatment to obtain a magnetic particle aqueous solution with the concentration of 22 wt%, wherein the ultrasonic treatment time is 50min, the ultrasonic temperature is 40 ℃, then adding an aqueous solution containing a silane coupling agent, the concentration of the silane coupling agent aqueous solution is 15 wt%, the volume ratio of the magnetic particle aqueous solution to the silane coupling agent aqueous solution is 1:1, reacting for 20h at 65 ℃, and dialyzing to obtain the modified magnetic Fe with the composite grafting specification₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: will be described in detailThe polyester fabric containing graphene oxide prepared in S1 is soaked in modified magnetic Fe with the concentration of 3 wt%₃O₄@SiO₂And (3) soaking the nano particles in the finishing liquid for 24 hours at the temperature of 40 ℃, washing and drying the finished fabric, and soaking the fabric in pure water to obtain the magnetic fabric.

Example 5

A preparation method of a magnetic fabric comprises the following steps:

s1, preparing a polyester fabric containing graphene oxide: forming a polyester fabric containing graphene oxide by using polyester fibers containing graphene oxide, wherein the content of the graphene oxide is 2 wt%, and the particle size of graphene oxide particles is 80 nm;

s2. magnetic Fe₃O₄@SiO₂Preparing nano particles: magnetic Fe₃O₄Adding the mixture into ethanol for ultrasonic dispersion to obtain magnetic Fe with the concentration of 2 wt%₃O₄Dispersing, adding ammonia water, stirring, adding ethyl orthosilicate, reacting, adding ethyl orthosilicate and magnetic Fe₃O₄The volume ratio of the dispersion is 1: 90, the reaction time is 20h, and the magnetic Fe is obtained by washing and drying₃O₄@SiO₂Nanoparticles;

s3. magnetic Fe₃O₄@SiO₂Modification of the nanoparticles: magnetic Fe prepared in step S2₃O₄@SiO₂Adding the nano particles into water, performing ultrasonic treatment to obtain an aqueous solution of magnetic particles with the concentration of 18 wt%, wherein the ultrasonic treatment time is 40-50min and the ultrasonic temperature is 45 ℃, then adding an aqueous solution containing a silane coupling agent, the concentration of the aqueous solution of the silane coupling agent is 10 wt%, the volume ratio of the aqueous solution of the magnetic particles to the aqueous solution of the silane coupling agent is 1:1, reacting for 22h at 70 ℃, and dialyzing to obtain the modified magnetic Fe with the composite grafting specification₃O₄@SiO₂Nanoparticles;

s4, preparing a magnetic fabric: soaking the polyester fabric containing the graphene oxide prepared in the step S1 in modified magnetic Fe with the concentration of 4 wt%₃O₄@SiO₂Soaking in the finishing liquor for 22h at 35 deg.C, and finishingThe fabric is washed, dried and then dipped in pure water to obtain the magnetic fabric.

And (3) performance testing:

magnetic performance test of the magnetic fabric:

the magnetic induction intensity (measuring range: 0-2 m T-6 m T) of the surface of the magnetic fabric sample is detected by using a GM55A digital Gauss meter, and the test is specifically carried out according to the standard FZT 01116-.

And (3) testing the washing resistance of the magnetic fabric:

the washing resistance test standard of the magnetic fabric is carried out according to the GB/T3921.1-1997 standard method.

From the above table, it can be seen that the magnetic induction intensity of the prepared terylene-based magnetic fabric is between 0.08 mT and 0.1mT, and the terylene-based magnetic fabric belongs to the field of weak magnetic textiles. The surface magnetic induction intensity of the terylene-based magnetic fabric shows a certain descending trend along with the increase of the washing times, but the reduction of the magnetic induction intensity is not obvious, and the terylene-based magnetic fabric has good water washing resistance. The reason is that the magnetic powder attached to the surface part of the magnetic fabric falls off to a certain extent in the washing process, but the magnetic induction intensity of the magnetic fabric is not reduced obviously in general, which shows that the magnetic powder is combined with the polyester fiber more firmly, the loss of the magnetic powder particles in the washing process is less, and the magnetic fabric has good washing resistance.