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Modified polymer fibers as well as preparation method and application thereof

A technology of polymers and polymer particles, applied in the direction of single-component synthetic polymer rayon, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems such as no airgel reports, etc. The method is simple and easy to improve Production efficiency, cost-saving effects

Pending Publication Date: 2021-04-06
苏州薄暖御寒科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently no reports on the use of airgel in fiber modification.

Method used

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  • Modified polymer fibers as well as preparation method and application thereof
  • Modified polymer fibers as well as preparation method and application thereof
  • Modified polymer fibers as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The present invention provides the preparation method of the modified polymer fiber described in the technical scheme, comprising the following steps:

[0037] Feed polymer particles and airgel particles at the same time, carry out extrusion blending, and obtain a melt;

[0038] Spinning the melt to obtain filaments;

[0039] The filaments are drawn and formed to obtain modified polymer fibers.

[0040] In the invention, polymer particles and airgel particles are simultaneously fed, extruded and blended to obtain a melt.

[0041] In the present invention, before the feeding, the present invention preferably pretreats the polymer particles, the present invention has no special limitation on the pretreatment method of the polymer particles, according to the type of polymer particles according to the present invention Preprocessing can be performed by methods well known in the field. In an embodiment of the present invention, the pretreatment method is preferably drying...

Embodiment 1

[0066] Pre-crystallize polyester chips in an ebullating bed at a temperature of 180°C for 15 minutes to obtain pre-crystallized chips;

[0067] Put the pre-crystallized chips into a drying tower, and dry them at a drying temperature of 190° C. for 5 hours to obtain dried polyester chips;

[0068] Silica airgel (particle size 23μm) was added figure 2 The shown disc-type volumetric metering device feeder (the mass percentage of the silica airgel accounting for the polyester chip is 10%), the polyester chip after drying and the metered silica airgel are simultaneously Enter the screw extruder for melting, the obtained melt is filtered to remove impurities, enter the metering pump in the spinning box for metering, and evenly distribute to each spinneret according to the mass (the hole shape of the spinneret is circular), and spray Silk to obtain filaments; wherein, the aperture of the spinneret used is 0.35mm, and the aspect ratio is 2.3; the screw temperature is respectively 28...

Embodiment 2

[0075] Put PA6 slices with a relative viscosity of 2.5 into a drying tower, and dry them at a drying temperature of 60°C for 4 hours to obtain dried PA6 slices;

[0076] Titanium dioxide airgel (particle size is 23 μm) is added to the feeder of the weight loss metering device (the mass percentage of the titanium dioxide airgel accounting for the PA6 slice is 12%);

[0077] The dried PA6 slices and the metered titanium dioxide airgel are melted into the screw extruder at the same time, and the obtained melt is filtered to remove impurities, and then enters the metering pump in the spinning box for metering, and is evenly distributed to each spinneret according to the mass. plate (the hole shape of the spinneret is circular), and spin to obtain filaments; wherein, the hole diameter of the spinneret used is 0.3mm, and the aspect ratio is 1.35; the screw temperature is 270°C in the first zone and 270°C in the second zone. , The third zone is 275°C, the fourth zone is 275°C, the fi...

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Abstract

The invention provides modified polymer fibers as well as a preparation method and application thereof, and belongs to the technical field of fiber material modification. The modified polymer fibers provided by the invention comprise polymer fibers and aerogel particles, wherein the aerogel particles are uniformly distributed in the polymer fibers or on the surfaces of the polymer fibers. In the modified polymer fibers, the aerogel particles are distributed in the polymer fibers and on the surfaces of the polymer fibers, and the polymer fibers and products thereof can be endowed with different properties (such as heat insulation property and adsorbability) compared with original polymer fibers and products thereof by changing the varieties and content of the aerogel particles, so that the purpose of modifying polymer fibers and products processed from the polymer fibers is achieved. According to the invention, polymer particles and the aerogel particles are directly spun through corresponding metering, the procedures of mixing granulation and then mixing melt spinning are omitted, the cost is saved, the method is simple and easy to implement, the production efficiency is improved, and the method has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of fiber material modification, in particular to a modified polymer fiber and its preparation method and application. Background technique [0002] In terms of shape, fiber is a relatively soft, thin and long substance. Fibers are widely used in clothing, nonwovens, home textiles, decoration and non-fiber industries. [0003] Polymer particle spinning is basically concentrated in the category of melt spinning technology, which can cover polyesters such as PET, PBT, PTT and polylactic acid, polyamides such as PA6, PA66 and PA1010, olefins such as PP, PE, PS and others Resin spinning can produce products such as long fibers, short fibers and non-woven fabrics. [0004] With the increase in the output of ordinary fibers, the competition in the industry is gradually intensifying; in addition, people's demand for differentiated products such as clothing and home furnishing continues to increase, and fiber modif...

Claims

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Application Information

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IPC IPC(8): D01F6/84D01F6/62D01F6/60D01F6/06D01F1/10
CPCD01F6/84D01F6/625D01F6/60D01F6/06D01F1/10Y02P70/62
Inventor 李秦鲁王群芳龚佩清洪岩
Owner 苏州薄暖御寒科技有限公司
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