WO2018132943A1 - Preparation method for titanium suboxide-based polymer composite material and use thereof - Google Patents

Abstract

Disclosed are a preparation method for a titanium suboxide-based polymer composite material and the use thereof. The method comprises: subjecting titanium suboxide and/or titanium suboxide doped with elemental impurities to mechanical crushing and ultrasound atomisation at a high speed; subjecting same to airflow crushing, so as to prepare a nano titanium suboxide powder; subjecting same to surface-modification, so as to prepare a nano modified titanium suboxide powder; subjecting the modified nano titanium suboxide powder and a resin to powder blending, pelleting and extruding, so as to prepare a titanium suboxide-based polymer composite material. The titanium suboxide-based polymer composite material thus prepared has antistatic, anti-microbial and anti-ultraviolet effects, and can be used in preparing a functional plastic injection-moulded part and in weaving.

Description

[Invention name established by ISA according to Rule 37.2] Preparation method of titania-based functional polymer composite material and application thereof Technical field

The invention belongs to the technical field of functional polymer materials, and particularly relates to a preparation method and application of a titania-based functional polymer composite material.

Background technique

Functional materials have gradually entered the consumer's field of vision with the development and advancement of social science and technology. In the past, some polymer materials research and development mainly focused on weather resistance and high performance, such as improving their service life and strength, reducing quality, etc., but lacked attention to the benefits of the materials themselves to the testers.

The scale involved in the technology belongs to the range of quantum dots. The quantum dots are also called semiconductor nanocrystals. The dimensions of the three dimensions are below 200 nanometers. The appearance is just like a tiny dot, and the internal electrons are in all directions. Sports are limited. The special structure of quantum dots leads to surface effects, quantum size effects, dielectric resistance effects and macroscopic quantum tunneling effects, which show different physicochemical properties from macroscopic materials and have great application potential in functional materials.

With the enhancement of safety awareness, the requirements for health and environmental protection have increased, and some functional products that can protect the human body and reduce the harm caused by environmental pollution highlight its market value. For example, the long-lasting and effective anti-UV function has always been a problem to be solved in the production of garments and decorative fabrics. Antistatic is also a major factor that plagues production and life. Accidents caused by static electricity have also attracted enough attention, and formaldehyde and other organic The toxic gas has gradually attracted the attention of consumers with the rise of the decoration industry, and its harm to the body is difficult to estimate. The demand for such functional materials is gradually increasing, and the resulting functional materials are gradually increasing. The invention is based on the above requirements, and through the modification of the nano material and the adjustment of the production and processing technology, the functionality can be exerted, and the plastic and chemical fiber products can be applied.

Summary of the invention

The purpose of this section is to summarize some aspects of the embodiments of the invention and to briefly describe some preferred embodiments. The simplifications or omissions may be made in this section as well as in the description of the invention and the invention, and the scope of the invention is not to be construed as limiting the scope of the invention.

The present invention has been made in view of the technical blank of the above-described method for preparing a titania-based functional polymer composite.

Therefore, one of the objects of the present invention is to solve the deficiencies in the prior art and to provide a method for preparing a titania-based functional polymer composite material having a wide application field.

In order to solve the above technical problem, the present invention provides the following technical solution: a method for preparing a titania-based functional polymer composite material, comprising: mechanically pulverizing titania and/or impurity-doped titania; Ultrasonic high-speed atomization; air flow pulverization to obtain titania nano-powder; surface modification to obtain modified titania nano-powder; blending modified titania nano-powder with resin powder The granule is extruded to obtain a titania-based functional polymer composite.

As a preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, the modified titania nanopowder has a mass ratio of 1:1.5 to 9 with the resin powder.

As a preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, the titania-based functional polymer composite material has a mass percentage of titanium oxide of 10 to 40%.

As a preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, the hetero element is one or more of nitrogen, phosphorus or sulfur.

As a preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, the ultrasonic high-speed atomization, wherein the ultrasonic power is 200-250 W, and the high-speed atomization rotation speed is 20000-24000 rpm.

A preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, wherein: the gas flow is pulverized, the gas flow rate is 2 to 4 m ³ /min, the gas pressure is 0.5 to 0.7 MPa, and the gas temperature is It is 90 to 120 °C.

As a preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, the mechanical powder has a powder time of 0.5 to 1 h and a rotation speed of 250 to 350 rpm.

A preferred embodiment of the method for preparing a titania-based functional polymer composite according to the present invention, wherein: the surface modification, the amount of the modifier is 1 to 10% of the mass of the powder, and the mass concentration is 4 to 6wt.%.

Still another object of the present invention is to provide an application of a product prepared by a method for preparing a titania-based functional polymer composite material for preparing a functional plastic injection molded part.

Still another object of the present invention is to provide a product for weaving in a method for preparing a titania-based functional polymer composite.

In order to solve the above technical problem, the present invention provides the following technical solution: the titania-based functional polymer composite material is dried and uniformly mixed with the basic resin slice, and the mass percentage of the titania-based functional polymer composite material is 6 to 10%. Feeding the feeder of the spinning machine for melt spinning, the spinning speed is 2500 ~ 3000m / min, the initial pressure of the spinning assembly is 10 ~ 12MPa, to make a titania-based functional fiber.

The beneficial effects of the invention:

(1) The functional fiber made of the polymer composite material obtained by the present invention has excellent mechanical properties, and various fabrics such as plain cloth and velvet can be developed. And the functional fiber is prepared, wherein the nano titania is uniformly distributed on the surface of the fiber, which has good antistatic effect and antibacterial effect, and the titanium oxide distributed on the surface of the fiber can light under the action of light radiation. It can be converted into chemical energy/thermal energy/electric energy. The heat energy raises the temperature of the material. The chemical energy can decompose organic toxic gases such as formaldehyde. The titanium dioxide particles in the fiber are also uniformly distributed. These evenly distributed particles can be effectively absorbed. Ultraviolet light has a very good anti-ultraviolet effect.

(2) A method for preparing a nanometer titania composite photocatalyst by the chemical modification method provided by the invention, preparing a nano quantum dot by a physical method simply and on a large scale, and modifying the surface thereof to increase the stability and the resin system phase Capacitive, high production efficiency, can be applied to industrial production on a large scale, laying the foundation for the preparation of functional polymers and composite materials.

(3) A method for preparing a nano-sized titania composite photocatalyst by the chemical modification method provided by the invention, and a nano-powder having superior performance can be obtained by using a small amount of surface modifier.

(4) The nano-powder prepared by the method for preparing a nano-sized titania composite photocatalyst by the chemical modification method provided by the invention has small particle diameter and excellent surface activation index and dispersibility in the matrix.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor. among them:

1 is a titania powder having a diameter of about 100 nm obtained in Example 1;

2 is a titania powder having a diameter of about 50 nm obtained in Example 3;

Figure 3 is an SEM image of the titania-based functional fiber obtained in Example 9.

detailed description

The above described objects, features and advantages of the present invention will become more apparent from the detailed description.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It is also possible to implement other similar ways than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention, and thus the invention is not limited by the specific embodiments disclosed below.

In addition, "an embodiment" or "an embodiment" as used herein refers to a particular feature, structure, or characteristic that can be included in at least one implementation of the invention. The appearances of the "in one embodiment", "a" or "an"

Example 1

Weigh 3t TiO2 (particle size 10000～20000nm), add it to the mechanical pulverizer at 350rpm, pulverize for 45 minutes, and simultaneously use ultrasonic high-speed atomization to assist the pulverization. The ultrasonic power is 250W, and the high-speed atomization speed is 24000rpm. After the powder, the powder is collected and weighed; the surface modifier thioglycolic acid is 0.15t according to the ratio of 5wt.%, the airflow pulverizer is adjusted, the gas flow rate is 3m ³ /min, the gas pressure is 0.6MPa, and the air temperature is 100 ° C, the concentration of the modifier solution is 5wt.%, the flow rate of the modifier solution is 1ml / min, the atomization is 1 ~ 20μm, and the modifier is sprayed after the pulverization is started. After the pulverization, the average diameter is 100 nm, and the surface has been modified. , uniformly dispersed modified titania nano powder.

This is sample 1.

Example 2

Weigh 3t TiO2 (particle size 5000~10000nm), add it to the mechanical pulverizer at 300rpm, pulverize for 60 minutes, and simultaneously use ultrasonic high-speed atomization to assist the pulverization. The ultrasonic power is 200W, and the high-speed atomization speed is 22000rpm. After the powder, the powder is collected and weighed; the amino acid surface modifier 0.24t is weighed according to the ratio of 8wt.%, the airflow powder is adjusted, the gas flow rate is 3m ³ /min, the gas pressure is 0.6MPa, and the air temperature is 110. °C, the concentration of the modifier solution is 6wt.%, the flow rate of the modifier solution is 1ml/min, the atomization is 1-20μm, and the modifier is sprayed after the pulverization is started. After the pulverization, the average diameter is 100 nm, and the surface has been modified. A uniformly dispersed modified titania nanopowder.

This is sample 2.

Example 3

Weigh 3t TiO2 (particle size 500~5000nm), add it to the mechanical pulverizer at 250rpm, pulverize for 45 minutes, and simultaneously use ultrasonic high-speed atomization to assist the pulverization. The ultrasonic power is 250W, and the high-speed atomization speed is 20000rpm. After the powder, the powder is collected and weighed; 0.18t of glycerol is weighed according to the ratio of 6wt.%, the airflow powder is adjusted, the gas flow rate is 3m ³ /min, the gas pressure is 0.6MPa, and the air temperature is 100°C. The concentration of the modifier solution is 4wt.%, the flow rate of the modifier solution is 1ml/min, the atomization is 1-20μm, and the modifier is sprayed after the pulverization is started. After the pulverization, the average diameter is 50 nm, the surface has been modified, and the dispersion is uniform. Modified titania nanopowder.

This is sample 3.

Example 4

Weigh 3t TiO2 (particle size 500~5000nm), add it to the mechanical pulverizer at 300rpm, pulverize for 30 minutes, and simultaneously use ultrasonic high-speed atomization to assist the pulverization. The ultrasonic power is 200W, and the high-speed atomization speed is 24000rpm. After the powder, the powder is collected and weighed; 0.33t of glycerol is weighed according to the ratio of 10wt.%, the airflow powder is adjusted, the gas flow rate is 2m ³ /min, the gas pressure is 0.7MPa, and the air temperature is 120°C. The concentration of the modifier solution is 5wt.%, the flow rate of the modifier solution is 1.2ml/min, and the atomization is 1-20μm. After the pulverization, the modifier is sprayed. After the pulverization, the average diameter is 80 nm, and the surface has been modified and dispersed. Uniform modified titania nanopowder.

This is sample 4.

Example 5

Weigh 3t nitrogen-doped TiO2 (particle size 500-5000nm), add it to a mechanical pulverizer at 300rpm, pulverize for 30 minutes, and simultaneously use ultrasonic high-speed atomization to assist pulverization, ultrasonic power is 200W, high-speed atomization The rotation speed is 24000 rpm, the powder is collected and weighed after the powdering; the glycerol is weighed 0.33t according to the ratio of 10wt.%, the air flow powder is adjusted, the gas flow rate is 2m ³ /min, the gas pressure is 0.7MPa, and the air temperature is 120 ° C, the concentration of the modifier solution is 5wt.%, the flow rate of the modifier solution is 1.2ml / min, the atomization is 1 ~ 20μm, after the pulverization is started, the modifier is sprayed, and after the pulverization is completed, the average diameter is 80 nm, and the surface is already Modified, uniformly dispersed modified nitrogen-doped titania powder.

Example 6

Weigh 3t phosphorus-doped TiO2 (particle size 5000~10000nm), add it to a mechanical pulverizer at 300rpm, pulverize for 60 minutes, and simultaneously use ultrasonic high-speed atomization to assist pulverization, ultrasonic power is 200W, high-speed atomization The rotation speed is 22000 rpm, the powder is collected and weighed after the powdering; the amino acid surface modifier 0.24t is weighed according to the ratio of 8wt.%, the air flow powder is adjusted, the gas flow rate is 3m ³ /min, the gas pressure is 0.6MPa, the air The temperature is 110 ° C, the concentration of the modifier solution is 6 wt.%, the flow rate of the modifier solution is 1 ml/min, the atomization is 1-20 μm, the modifier is sprayed after the pulverization is started, and the average diameter is 100 nm after the pulverization is completed. Surface modified, uniformly dispersed modified phosphorus doped titania powder.

Example 7

A commercially available nano-sized modified titania powder having a modifier content of 15% by weight was used as the sample 5.

Take 5.0g of each sample 1, 2, 3, 4, 5, add 200ml of deionized water, stir magnetically for 5min, let stand, remove the powder floating on the water surface, filter, dry and weigh the sample sinking into the bottom. The quality is recorded as M, and the activation index is calculated according to the following formula:

The specific results are as follows

As is apparent from the results, the modified powder prepared by the present invention has an excellent effect in terms of activation index. The inventors have found through research that when the amount of the modifier is controlled to be 1 to 10% by weight, the activation index of the modified powder is remarkably enhanced and stabilized at 90% or more. Although the amount of the modifier in the commercially available modified powder is more than 10% by weight, due to the soft agglomeration between the original nano-powder and the modified nano-powder during the modification process, the formation of "secondary" "particle size", can not effectively optimize the activation index. The invention ruptures the agglomeration between the nano-powders by ultrasonic or high-speed atomization in the mechanical pulverization, avoids the soft agglomeration phenomenon caused by directly adding the modifier, and simultaneously modifying at the time of mechanical pulverization may erode the machine, resulting in machine malfunction.

Example 8

A commercially available nano-sized modified titanium dioxide powder having a modifier content of 15% by weight was used as the sample 5.

Take samples 1, 2, 3, 4, 5 respectively, add carbon tetrachloride, prepare 0.1wt% dispersion, ultrasonically disperse for 10min, place in 10ml graduated test tube with grinded plug, and let stand at room temperature The solvent of the supernatant liquid was recorded, and the ratio of the volume to the organic phase (10 ml) indicates the sedimentation rate of the nano powder to evaluate the dispersibility.

After counting for 180 minutes, the sedimentation rate data was recorded every 30 minutes, and the following chart was arranged:

As a result, it can be seen that the modified powder prepared by the present invention has an excellent effect in terms of dispersibility. Whether the nano-powder can reflect the stable fusion with the matrix material and the uniform dispersibility in the matrix material, the key is to control the uniformity of the nano-powder particle size and the nano-powder to be fully modified. The inventors found that the nano-powder particles were uniformly controlled to be below 200 nm by mechanical pulverization, and the process was modified by ultrasonic, high-speed atomization instead of modifier, which was more difficult to avoid the modified nano-modified process. The soft agglomeration of the particles with the original nanoparticles, so that the particle size distribution is narrow, and the phenomenon of "secondary particle size" does not occur; further, the airflow powder is used, and at the same time, the modifier is used for surface modification, and the particle size distribution is In the case of uniformity, the particle diameter is further refined, and at the same time, the nanoparticle is sufficiently modified almost in a "one-to-one" manner as compared with the mechanical powder modification. In summary, the method provided by the present invention can control the uniformity of the particle size of the nano-powder and the nano-powder to be sufficiently modified, thereby exhibiting excellent dispersibility in the matrix.

It can be seen from the results that the modified powder prepared by the invention has excellent effects in terms of ultraviolet absorption, electrical conductivity, photothermal conversion, and photodegradation of formaldehyde. Whether the functional nano-powder can reflect excellent functional effects, the key lies in whether 1. Whether the nano-powder particles themselves are fully modified; 2. Whether the nano-powders are stably fused in the matrix; 3. Whether the nano-powders are evenly dispersed in the matrix . These three, complement each other. The inventors have found that by the first-round pulverization of the nano-powder and simultaneous ultrasonic or high-speed spray treatment, the soft agglomeration of the nano-powder can be prevented, so that the particle size distribution does not occur due to the "secondary particle size". Wide, inadequate modification occurs. In this way, in the case of effectively controlling the particle size distribution and the sufficient degree of modification of the nano powder, the nano powder prepared by the invention can have a high activation index and excellent dispersibility in the matrix. . Further, the fabric prepared by the powder obtained by the present invention can exhibit more excellent functional effects than the conventional commercially available functional powder having a higher modifier content.

It is worth mentioning that in the prior art, the nanometer titania powder is prepared by chemical method, and the invention adopts a physical method to produce a powder with better effect. Abandoning the traditional post-modification process, using ultrasonic atomization assisted treatment, and optimizing the process conditions, promotes the adsorption of air by the "dangling bond" of the surface atom of titanium dioxide to the space. Smashing and ultrasonic atomization Promoting effect, the three-dimensional periodic potential field inside the titania is continuously interrupted at the surface, and the electronic state and the body phase are extremely changed, resulting in a certain degree of dissociation of the adsorbed gases other than the stable adsorption sites such as bridge oxygen vacancies. It affects the mixed ions and covalent bonds existing in the titania system, making the titania stability weak and capable of being broken down to a lower order of magnitude.

Example 9

The modified titania nanopowder prepared in Example 1 and the resin powder were mixed at a mass ratio of 3:7, and extruded by blending and granulating to obtain a titania-based functional polymer composite. The titania-based functional polymer composite material is dried and uniformly mixed with the basic resin slice, and the mass percentage of the titania-based functional polymer composite material is 8%, which is fed into a feeder of the spinning machine for melt spinning. The spinning speed is 2900 m/min, and the initial pressure of the spinning assembly is 12 MPa, to obtain the above-mentioned titania-based functional fiber;

Using the prepared titania-based functional fiber to prepare a fabric having antistatic/high anti-UV/antibacterial/light energy conversion (thermal/electrical/chemical energy) by weaving means, using a weaving method, in the warp and weft direction, wherein the sub-oxidation The content of the titanium-based functional fiber is 75% by mass.

The mechanical properties of the titania-based functional fiber obtained in Example 1 were tested as follows: strength was 2.17 cn/dtex, elongation at break was 19%, which satisfied the requirements of various weaving methods, and the diameter of the single fiber was 1 D (7 μm). ), it is possible to develop various fabrics such as plain cloth and velvet, and the test results of the prepared fabric are as follows:

sample	Antistatic half life (s)	Antibacterial (%)	1min heating (°C)	UV absorption (%)	30min formaldehyde decomposition (%)
Fabric	0.6	87	5.2	99.9	78

Figure 3 is a scanning electron micrograph of the obtained anti-ultraviolet fiber. It can be seen from the picture that the titania having a particle size of less than 100 nm has a uniform distribution on the surface of the fiber, which has a good antistatic effect and antibacterial effect. The TiO2 distributed on the surface of the fiber can convert light energy into chemical energy/thermal energy/electric energy under the action of light radiation. The heat energy raises the temperature of the material, and the chemical energy can decompose organic toxic gases such as formaldehyde, and the internal oxidation of the fiber. The titanium particles are also uniformly distributed, and these evenly distributed particles can effectively absorb ultraviolet rays and have a good anti-ultraviolet effect.

Example 10

The modified titania nanopowder prepared in Example 1 and the resin powder were mixed at a mass ratio of 3:7, and extruded by blending and granulating to obtain a titania-based functional polymer composite. The titania-based functional polymer composite is dried and mixed with the basic resin slice, and the titania-based functional polymer composite The mass percentage of the material is 6%, and the feeder fed to the spinning machine performs melt spinning, the spinning speed is 3000 m/min, and the initial pressure of the spinning assembly is 10 MPa, to obtain the above-mentioned titania-based functional fiber;

Using the prepared titania-based functional fiber to prepare a fabric having antistatic/high anti-UV/antibacterial/light energy conversion (thermal/electrical/chemical energy) by weaving means, using a weaving method, in the warp and weft direction, wherein the sub-oxidation The content of the titanium-based functional fiber is 75% by mass.

Example 11

The modified titania nano-powder prepared in Example 1 and the resin powder are mixed at a mass ratio of 1:8, and extruded by blending and granulating to obtain a titania-based functional polymer composite material, which is obtained through an injection molding apparatus. The required plastic injection molded parts.

It should be noted that the resin powders involved in the patent include PET powder, PBT powder, PTT powder, PC powder, PCT powder, nylon 6 powder, nylon 66 powder, polypropylene powder or poly. One or several of ethylene powders.

The patent relates to one or more of the basic resin chips including polyester chips, polyolefin chips or polyamide chips.

The basic resin chips referred to in the patent specifically include PET slices, PBT slices, PTT slices, polyethylene slices, polypropylene slices, PA6 slices or PA66 slices.

It can be seen that the functional fiber made of the polymer composite material prepared by the invention has excellent mechanical properties, and various fabrics such as flat cloth and velvet can be developed. And the functional fiber is prepared, wherein the nano titania is uniformly distributed on the surface of the fiber, which has good antistatic effect and antibacterial effect, and the titanium oxide distributed on the surface of the fiber can light under the action of light radiation. It can be converted into chemical energy/thermal energy/electric energy. The heat energy raises the temperature of the material. The chemical energy can decompose organic toxic gases such as formaldehyde. The titanium dioxide particles in the fiber are also uniformly distributed. These evenly distributed particles can be effectively absorbed. Ultraviolet light, which has a good anti-ultraviolet effect; the method for preparing a nano-sized titania composite photocatalyst by the chemical modification method provided by the invention, the nano quantum dots are prepared by a physical method, and the surface is modified by a simple method It has increased stability and compatibility with resin system, high production efficiency, and can be applied to industrial production on a large scale, laying a foundation for the preparation of functional polymers and composite materials. The chemical modification method provided by the present invention prepares nanometer titanium oxide. The method of composite photocatalyst can produce better performance by using a small amount of surface modifier. Powder; chemical modification of the present invention provides a method of nanopowders Preparation of nanometer alkylene oxide photocatalyst prepared composite obtained, having a small particle size and excellent surface activation index and dispersibility in the matrix.

It should be noted that the above embodiments are only used to explain the technical solutions of the present invention, and the present invention is not limited thereto. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be Modifications or equivalents are intended to be included within the scope of the appended claims.

Claims (10)

1. Method for preparing titania-based functional polymer composite material, characterized in that:

   Mechanical pulverization of titania and/or impurity-doped TiO 2 and ultrasonic high-speed atomization;

   Performing a gas flow to obtain a titania nanometer powder;

   Surface modification to prepare modified titania nano-powder;

   The modified titania nano powder and the resin powder are blended and granulated and extruded to obtain a titania-based functional polymer composite.
2. The method for preparing a titania-based functional polymer composite according to claim 1, wherein the modified titania nanopowder has a mass ratio of 1:1.5 to 9 with the resin powder.
3. The method for preparing a titania-based functional polymer composite according to claim 1 or 2, wherein the titania-based functional polymer composite material has a mass percentage of the titanium oxide of 10 to 40%.
4. The method for preparing a titania-based functional polymer composite according to claim 1, wherein the hetero element is one or more of nitrogen, phosphorus or sulfur.
5. The method for preparing a titania-based functional polymer composite according to any one of claims 1, 2 or 4, characterized in that: the ultrasonic high-speed atomization, wherein the ultrasonic power is 200-250 W, and the high-speed atomization rotation speed is 20000 to 24000 rpm.
6. The method for preparing a titania-based functional polymer composite according to claim 5, wherein the gas flow is pulverized, the gas flow rate is 2 to 4 m ³ /min, the gas pressure is 0.5 to 0.7 MPa, and the gas temperature is 90. ~120 ° C.
7. The method for preparing a titania-based functional polymer composite according to any one of claims 1, 2, 4 or 6, wherein the mechanical powder has a pulverization time of 0.5 to 1 h and a rotational speed of 250 ~350rpm.
8. The method for preparing a titania-based functional polymer composite according to any one of claims 1, 2, 4 or 6, wherein the surface modification is performed by using a modifier of 1 to 10 of a powder mass. %, its mass concentration is 4 to 6 wt.%.
9. The invention relates to a product prepared by the method for preparing a titania-based functional polymer composite material according to claim 8 for preparing a functional plastic injection molded part.
10. The invention relates to a product for weaving obtained by the method for preparing a titania-based functional polymer composite material according to claim 8, characterized in that the titania-based functional polymer composite material is dried and mixed with the basic resin slice. Uniform, mass percentage of titania-based functional polymer composites 6 to 10%, the feeder fed to the spinning machine is melt-spinning, the spinning speed is 2500-3000 m/min, and the initial pressure of the spinning assembly is 10-12 MPa to prepare a titania-based functional fiber.

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