CN110820102A

CN110820102A - Hollow fiber of aerogel and method for producing same

Info

Publication number: CN110820102A
Application number: CN201810895681.0A
Authority: CN
Inventors: 萧登波
Original assignee: NANLIANG INDUSTRY Co Ltd
Current assignee: Nanliang International Co.,Ltd.
Priority date: 2018-08-08
Filing date: 2018-08-08
Publication date: 2020-02-21

Abstract

The hollow fiber of aerogel comprises a fiber line, the fiber line comprises a plurality of combined monofilaments, the monofilaments are hollow, the monofilaments are made of aerogel and artificial polymer materials, and the monofilaments are of a hollow structure and the aerogel contained in the monofilaments is also of a multi-gap material, so that the fiber line is extremely light in weight and has a good insulation effect.

Description

Hollow fiber of aerogel and method for producing same

Technical Field

The present invention relates to an aerogel hollow fiber and a method for manufacturing the same, a fiber structure and a method for manufacturing the same.

Background

In the textile industry, there is a great need for better lightweight, thermal insulation and insulation properties of textile products, so that people can wear the textile products more comfortably.

The above-mentioned pursuit of better performance of textile products can be achieved by improving the textile manufacturing process and the textile material, but the related improvement mode seems to have reached the bottleneck of breakthrough after the long-term development of the textile industry.

In view of the above drawbacks, the inventor of the present invention considers that there is a need for correction, and then develops hollow fibers of aerogel and methods for manufacturing the hollow fibers of aerogel after continuous efforts by following many years of experience in related technologies and product design and manufacture, with excellent design concepts, and with the above disadvantages, the inventor corrects the structure of the product to improve the excellent efficacy of the product.

Disclosure of Invention

The present invention provides a hollow fiber of aerogel and a method for manufacturing the same, which can provide a multifilament fiber yarn made of aerogel raw material, wherein each monofilament in the multifilament fiber yarn is hollow, so that the fiber yarn is lighter and has better insulation effect due to the pores of the aerogel and the hollow structure of the monofilament.

In order to achieve the above object, the present invention discloses an aerogel hollow fiber, comprising:

the fiber line is provided with a plurality of combined monofilaments, the monofilaments are hollow, and the monofilaments are made of aerogel mixed artificial polymer materials.

Wherein the weight of the aerogel in the monofilament accounts for 0.5-10%.

Wherein, the artificial polymer in the monofilament uses one of polypropylene, polyester, nylon and acrylic.

Wherein the fiber wire has a specification of 70D/72F.

Also disclosed is a method for producing hollow fibers of an aerogel, which is characterized by comprising:

forming monofilaments, namely, hot melting a spinning raw material containing aerogel and an artificial polymer into a spinning solution, and then spinning the spinning solution into hollow monofilaments by utilizing an annular spinneret orifice;

and forming a fiber thread, combining a plurality of monofilaments into a fiber thread.

Wherein, a step of preparing spinning raw materials is provided before the monofilament forming step, and the spinning raw materials are obtained by taking aerogel powder and artificial polymer granules and uniformly mixing the aerogel powder and the artificial polymer granules.

The method comprises a step of preparing a spinning raw material before the step of forming the monofilaments, wherein aerogel powder is added in the polymerization manufacturing process of the artificial polymer, and the spinning raw material mixed by the artificial polymer and the aerogel is obtained after polymerization.

Wherein the step of combining the fiber strands is followed by a fiber strand processing step.

Therefore, the aerogel hollow fiber and the manufacturing method thereof comprise a fiber thread, wherein the fiber thread comprises a plurality of combined monofilaments, the monofilaments are hollow (or tubular), and the monofilaments are made of aerogel mixed artificial polymer materials.

In the hollow fiber of the aerogel, the monofilament contains the aerogel material, the aerogel is a widely known porous light-weight material and has unique properties of excellent heat insulation, excellent strength, extremely low density and the like, and the monofilament is also in a hollow structure, so that after the fiber yarn is subsequently woven into different textile products, the manufactured textile products have excellent insulation and extremely light weight, and the aerogel becomes a breakthrough and progressive product.

Drawings

FIG. 1: schematic representation of hollow fibers of aerogels of the invention.

FIG. 1A: the enlarged schematic view in fig. 1.

FIG. 1B: fig. 1A is a partially enlarged schematic view.

FIG. 2: the flow chart of the method for manufacturing the hollow fiber of aerogel of the invention is shown in the figure.

Detailed Description

Referring to fig. 1, 1A and 1B, the hollow fiber of aerogel includes:

a fiber thread 1, having a plurality of combined monofilaments 11, wherein the monofilaments 11 are hollow (or tubular), and the monofilaments 11 are made of aerogel mixed artificial polymer material, as shown in the figure, a large number of aerogel particles 111 are uniformly dispersed in the monofilaments 11, the weight ratio of the aerogel in the monofilaments 11 is 0.5-10%, and the remaining weight ratios of the monofilaments 11 are artificial polymers, and the aerogel can be made of different elements, such as silicon, carbon, nickel, and the like. In addition, one embodiment of the present invention provides a fiber thread 1 having a specification of 70D/72F, wherein D represents Denier (Denier or den), wherein Denier is defined as the weight of the fiber per 9000 meters (g), for example, 9000 meters of the fiber is 1 g if the weight of the fiber is 1 g, and F represents the number of filaments of the fiber, such that 70D/72F represents 70 g per 9000 meters of the fiber thread 1, and the fiber thread 1 has 72 filaments 11.

Referring to fig. 1, fig. 1A and fig. 1B, the aerogel material in the monofilament 11 has a large number of pores, so that the density is low and the insulation effect is excellent (as shown in the figure, the aerogel particles 111 in the monofilament 11 have a plurality of pores), however, further, when the monofilament 11 is made into a hollow shape, the weight of the textile product can be lighter and the insulation effect is better when the fiber thread 1 is made into various textile products.

Referring to fig. 1 and 2, the method for manufacturing the hollow fiber of the aerogel includes the following steps:

preparing a spinning raw material 2, and preparing a spinning raw material formed by mixing aerogel and an artificial polymer, wherein the weight percentage of the aerogel is 0.5-10%, and the artificial polymer is selected from one of polypropylene, polyester, nylon and acryl.

The monofilament molding 3 is to melt the spinning material into a spinning solution, and then to spin the spinning solution into a hollow monofilament 11, in which aerogel fine particles 111 are uniformly dispersed in the monofilament 11.

And forming a fiber thread 4, and combining a plurality of monofilaments 11 into a fiber thread 1.

A fiber thread processing 5, and the fiber thread 5 is processed.

Referring to fig. 1 and 2, the above-mentioned step of preparing the spinning raw material 2 can be implemented in two different ways, which are as follows:

the first embodiment of the step of preparing the spinning raw material 2 is to directly take the aerogel powder and the artificial polymer pellets, and uniformly mix them to obtain the spinning raw material.

In the second embodiment of the step 2 of preparing the spinning raw material, the aerogel powder is added in the polymerization process of the artificial polymer, and the spinning raw material mixed by the artificial polymer and the aerogel can be obtained after the polymerization is finished.

Referring to fig. 1 and 2, in the step of forming 3, the spinning solution may be spun into the hollow monofilament 11 by different spinning methods such as melt spinning, wet spinning, dry spinning, etc. for example, when melt spinning is adopted, the spinning raw material may be fed into a hopper and then fed into a screw extruder, the spinning raw material may be heated and melted into the spinning solution after being fed into the screw extruder, the spinning solution may be pressure-fed into a spinning box by a screw, a metering pump in the spinning box further conveys the spinning solution to a spinneret plate, so that the spinning solution is extruded from a spinneret hole of the spinneret plate and cooled into a single monofilament 11, and the spinneret plate uses a spinneret plate having a ring-shaped spinneret hole in order to make the monofilament 11 hollow.

Referring to fig. 1 and 2, in the step of forming the fiber line 4, a plurality of filaments 11 extruded from the spinneret holes of the spinneret are guided by a yarn guide such as a yarn guide and combined into the fiber line 1.

Referring to fig. 1 and 2, in the step of processing the fiber thread 5, the fiber thread 1 is processed by drafting, heating, curling or twisting, etc. to improve the elasticity, strength, drapability, etc. of the fiber thread 1, and the step of processing the fiber thread 5 is a known step in the textile industry, so that a person can select which processing to process the fiber thread 1 according to different property requirements, which is not described herein.

The hollow fiber of the aerogel and the manufacturing method thereof have the advantages that by the characteristics of porosity and low density of the aerogel and the hollow structure of the monofilament, a textile product manufactured by the fiber yarn has excellent properties such as good isolation, light weight and the like.

It should be understood that the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the present invention. All equivalent changes and modifications made in the spirit of the present invention should be covered by the scope of the present invention.

In view of the above, it is believed that the present invention is novel and advantageous and that no publications are disclosed herein as being in accordance with the doctrine of equivalents.

Claims

1. Hollow fibers of aerogel, characterized by comprising:

2. Hollow fiber of aerogel according to claim 1, wherein the weight fraction of aerogel in the monofilament is 0.5-10%.

3. The aerogel hollow fiber of claim 1, wherein the synthetic polymer in the monofilament is one of polypropylene, polyester, nylon, and acryl.

4. The aerogel hollow fiber of claim 1, wherein the fiber strand has a gauge of 70D/72F.

5. A method for producing hollow fibers of aerogel, characterized by comprising:

6. The method for manufacturing hollow fibers of aerogel according to claim 5, wherein the step of forming the filaments is preceded by a step of preparing a spinning raw material by taking aerogel powder and synthetic polymer pellets and uniformly mixing them to obtain a spinning raw material.

7. The method for manufacturing hollow fibers of aerogel as claimed in claim 5, wherein the step of preparing a spinning raw material is performed before the step of forming the filaments, in which aerogel powder is added during the process of polymerizing the synthetic polymer, and the spinning raw material of the synthetic polymer mixed with aerogel is obtained after the polymerization is completed.

8. The method of manufacturing hollow fibers of aerogel as claimed in claim 5, wherein there is a fiber strand processing step after the step of combining into fiber strands.