阅读说明：本技术 具有光降解有害有机物功能的纤维制备方法及功能纤维和面料 (Preparation method of fiber with function of photodegrading harmful organic matters, functional fiber and fabric ) 是由 刘水平 谭连江 熊友根 陈兵 谭全胜 于 2020-03-21 设计创作，主要内容包括：本发明公开了一种具有光降解有害有机物功能的纤维制备方法及功能纤维和面料,其中,制备方法包括,将改性光降解功能纳米粉体与树脂粉体混合,共混造粒,得到光降解功能母粒；干燥后通过计重法添加功能母粒,纯树脂切片通过正常纺丝通道添加,在熔融状态下混合进行纺丝,得到光降解功能纤维。本发明采用全新的光降解机理制备新的光降解功能纤维,可以对紫外区和可见光区强烈吸收,提高了分解有机有害气体的效率,纤维可以做成白色,具有永久性光降解功能。(The invention discloses a fiber preparation method with a function of photodegrading harmful organic matters, functional fiber and fabric, wherein the preparation method comprises the steps of mixing modified photodegradation functional nano powder with resin powder, blending and granulating to obtain photodegradation functional master batch; and adding the functional master batches by a weighing method after drying, adding the pure resin slices through a normal spinning channel, and mixing and spinning in a molten state to obtain the photodegradation functional fiber. The invention adopts a brand new photodegradation mechanism to prepare the new photodegradation functional fiber, can strongly absorb ultraviolet and visible light regions, improves the efficiency of decomposing organic harmful gases, and can be made into white fiber with permanent photodegradation function.)

1. A method for preparing fiber with photodegradation harmful organic matter function is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

mixing the modified photodegradation functional nano powder with resin powder, and blending and granulating to obtain photodegradation functional master batch;

and adding the functional master batches by a weighing method after drying, adding the pure resin slices through a normal spinning channel, and mixing and spinning in a molten state to obtain the photodegradation functional fiber.

2. The method for preparing fiber with photodegradation of harmful organic substances according to claim 1, wherein the method comprises the following steps: the mass ratio of the modified photodegradation functional nano powder to the resin powder is 1: 9-4: 6, wherein,

the modified photodegradation functional powder is one or more of nitrogen-doped titanium dioxide, copper-doped titanium dioxide and anatase titanium dioxide, and the resin powder is one or more of polypropylene resin powder, polyester powder and polyamide resin powder.

3. The method for preparing fiber with photodegradation of harmful organic substances according to claim 1 or 2, wherein: and blending and granulating to obtain the photodegradation functional master batch, wherein the photodegradation functional powder accounts for 3-20% of the functional master batch by mass, and the processing temperature is 200-280 ℃.

4. The method for preparing fiber with photodegradation of harmful organic substances according to claim 1, wherein the method comprises the following steps: the particle size of the modified photodegradation functional nano powder is 10-100 nm.

5. The method for preparing fiber with photodegradation of harmful organic substances according to claim 1, wherein the method comprises the following steps: the functional master batches are added by a weighing method, and the mass percentage of the functional master batches to the total weight of the spinning slice is 4-10%.

6. The method for preparing fiber with photodegradation of harmful organic substances according to any one of claims 1, 2 or 4, wherein: the spinning is carried out by mixing in a molten state, the spinning speed is 600-3200 m/min, the initial pressure of a spinning assembly is 8-16 MPa, and the spinning temperature is 200-295 ℃.

7. The method for preparing fiber with photodegradation of harmful organic substances according to any one of claims 1, 2 or 4, wherein: the pure resin slices comprise one or more of PET slices, PBT slices, PTT slices, polyethylene slices, polypropylene slices, PA6 slices or PA66 slices.

8. A photodegradable functional fiber produced by the production method of claim 1, wherein: the single fiber fineness of the photodegradation functional fiber is 0.5-5D.

9. A fabric is characterized in that:

the fiber comprises the photodegradable functional fiber and the resin fiber according to claim 8, wherein the content of the photodegradable functional fiber is 15-100%.

Technical Field

The invention belongs to the technical field of functional textile materials, and particularly relates to a preparation method of fibers with a function of photodegrading harmful organic substances, functional fibers and application.

Background

With the improvement of living standard of people, the quality problem of air is more and more concerned. With the development of medicine, the etiology of some diseases can be precisely confirmed. At present, respiratory diseases caused by air quality are gradually increased, and many patients suffer from the incurable symptom of septicemia due to the problem of air quality, and the reason is mainly that some harmful gases, such as formaldehyde, acetaldehyde, benzene and derivatives thereof, exist in the air, and the organic gases can be accumulated in the air for a long time, so that great harm is caused to the health of people. It has been found that since these harmful gases have a density higher than that of air, they are mainly present at a height of 1 m or less from the ground in a room, and the content of these highly harmful organic gases is the highest, and the height of the young children is usually substantially in this height range, and the physical skills of the young children are more easily destroyed by these harmful gases due to incomplete development, and cough, lacrimation, etc. are caused in a short time, and the respiratory tract system is destroyed in a longer time, and the blood circulation is entered through capillaries after long-term accumulation, so that the body of the young children is injured, which explains why the young children are easily septicemic in the age of the young children. Therefore, effective air quality is an important measure for people's health.

Therefore, the invention takes the fiber as the carrier of the nanometer powder with the light degradation function, realizes the function in a fabric mode, treats the air in a room or a vehicle by absorbing light and decomposes harmful organic gas. The method is different from the existing fabric coating method on the market, has the advantages of friction resistance and water washing resistance, and is also different from the adsorption type materials on the market, such as diatomite and activated carbon, because the latter has a maximum adsorption amount, namely adsorption saturation, the adsorption saturation becomes a new pollution source, and harmful organic gas can be released again at a certain temperature. Therefore, it is of great significance to develop a novel fiber with photodegradation function and manufacture a corresponding fabric.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The invention is provided in view of the above and/or the technical blank of preparing the photodegradable functional fiber and weaving the corresponding fabric in the prior art.

Therefore, one of the objectives of the present invention is to solve the deficiencies of the prior art and to provide a method for preparing fiber with function of photodegradation of harmful organic substances, and functional fiber and application thereof.

In order to solve the technical problems, the invention provides the following technical scheme: a fiber preparation method with photodegradation harmful organic matter function comprises mixing modified photodegradation functional nano powder with resin powder, blending and granulating to obtain photodegradation functional master batch; and adding the functional master batches by a weighing method after drying, adding the pure resin slices through a normal spinning channel, and mixing and spinning in a molten state to obtain the photodegradation functional fiber.

As a preferred scheme of the invention, the preparation method of the fiber with the function of photodegrading harmful organic matters comprises the following steps: the mass ratio of the modified photodegradation functional nano powder to the resin powder is 1: 9-4: 6, wherein the modified photodegradation functional powder is one or more of nitrogen-doped titanium dioxide, copper-doped titanium dioxide and anatase titanium dioxide, and the resin powder is one or more of polypropylene resin powder, polyester powder and polyamide resin powder.

As a preferred scheme of the invention, the preparation method of the fiber with the function of photodegrading harmful organic matters comprises the following steps: and blending and granulating to obtain the photodegradation functional master batch, wherein the photodegradation functional powder accounts for 3-20% of the functional master batch by mass, and the processing temperature is 200-280 ℃.

As a preferred scheme of the invention, the preparation method of the fiber with the function of photodegrading harmful organic matters comprises the following steps: the particle size of the modified photodegradation functional nano powder is 10-100 nm. As a preferred scheme of the invention, the preparation method of the fiber with the function of photodegrading harmful organic matters comprises the following steps: the functional master batches are added by a weighing method, and the mass percentage of the functional master batches to the total weight of the spinning slice is 4-10%.

As a preferred scheme of the invention, the preparation method of the fiber with the function of photodegrading harmful organic matters comprises the following steps: the spinning is carried out by mixing in a molten state, the spinning speed is 600-3200 m/min, the initial pressure of a spinning assembly is 8-16 MPa, and the spinning temperature is 200-295 ℃.

As a preferred scheme of the invention, the preparation method of the fiber with the function of photodegrading harmful organic matters comprises the following steps: the pure resin slices comprise one or more of PET slices, PBT slices, PTT slices, polyethylene slices, polypropylene slices, PA6 slices or PA66 slices.

A photodegradation functional fiber has a single fiber fineness of 0.5-5D.

A fabric comprises light degradation functional fibers and resin fibers, wherein the content of the light degradation functional fibers is 15-100%.

The invention has the beneficial effects that:

(1) the invention adopts a brand new photodegradation mechanism to prepare the new photodegradation functional fiber, can strongly absorb ultraviolet and visible light regions, improves the efficiency of decomposing organic harmful gases, and can be made into white fiber with permanent photodegradation function.

(2) The mechanical properties of the fiber and the fabric prepared by the invention can reach the standard of common fiber and completely meet various weaving requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Wherein:

FIG. 1 is an SEM image of a photodegradable fiber obtained by the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.