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Modified polyacrylonitrile fiber

A polyacrylonitrile fiber modification technology, applied in the field of chemical fiber textiles, can solve problems such as difficult control of feeding ratio and uneven mixing of raw materials

Inactive Publication Date: 2021-03-30
王艳军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the uneven mixing of the existing raw materials, it is difficult to control the feeding ratio between the raw materials. Through the design of the mixer, the mixing of the raw materials in the mixer is made uniform, and the produced mixture is improved. stable, the invention provides a modified polyacrylonitrile fiber

Method used

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  • Modified polyacrylonitrile fiber
  • Modified polyacrylonitrile fiber
  • Modified polyacrylonitrile fiber

Examples

Experimental program
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Effect test

preparation example Construction

[0034] The preparation of the modified polyacrylonitrile fibers passes the following steps:

[0035] S1: The agitator is activated at the air humidity of 30% to 60%, at room temperature 10 to 40 ° C, and the polyacrylonitrile fiber body, starch is mixed into the stirrer for 10 to 60 min, and the operation of the mixer makes the raw material sufficiently mix well. , Finally obtained mixture a;

[0036] S2: Mix the mixture A obtained from S1 with polyvinyl alcohol, nanocalbonate, polyvinylpyrrolidone to obtain spinning stock solution; spinning the spinning stock solution to obtain a mixed fiber; mixed the spinning fibers at 40 ~ 40 to 80 h were washed at 78 ° C, and then the mixed fibers after washing were treated with 50 to 90 ° C in the chitosan / acetic acid solution of 3 to 55 h;

[0037] S3: The mixed fibers after S2 were washed again, and the water washing conditions were washed 20 min to 45 ° C, and then the mixed fibers after washing were stretched, crimmed, dried over oil t...

specific Embodiment approach

[0039] As a specific embodiment of the present invention, the outer wall of the circular casing 41 is uniformly provided with a set of permanent magnet A411; a permanent magnet B12 is provided on the inner wall of the cylinder 1 corresponding to each of the permanent magnets A411. The length of the permanent magnet B12 is twice the length of the permanent magnet A411, and the permanent magnet A411 and the permanent magnet B12 are mutually rejected, and the circular casing 41 is always formed by mating between the permanent magnet A411 and the permanent magnet B12 such that the circular frame 41 is always Move with the rotating shaft 31 in the same vertical direction; when used, since the circular casing 41 is only the upward pull force of the No. 1 steel rope 42, the circular frame 41 is inclined during the rise, and with the circle The tilt time of the frame 41 increases, so that the raw material in the circular casing 41 is continuously output into the cylinder 1 in a non-unifor...

Embodiment approach

[0040] As a specific embodiment of the present invention, the lower end of the rotation shaft 31 is inherently secured; the bottom intermediate position in the circular casing 41 is rotated to mounting the base 412, and the outer wall of the base 412 is evenly provided with a set of blades 413, And the central portion of the base 412 is opened with a 1 channel 414, and a spiral groove is opened on the inner wall of the No. 1 passage 414, and the ball 415 is provided in the spiral groove, and the blade 413 is achieved by the screw 311, the spiral groove and the ball 415. Turn; when used, since the raw material in the circular frame 41 is difficult to be stirred, the feedstock is easily formed in the circular casing 41, and the accumulated raw material is difficult to output to the radical frame 41 under the action of no external force. It will result in inconsistency with the mixing ratio of subsequent raw materials and the actual amount of substance, affecting the mixing of the ra...

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Abstract

The invention relates to the field of chemical fiber spinning, in particular to a modified polyacrylonitrile fiber. A stirrer adopted in preparation of the modified polyacrylonitrile fiber comprises amixing drum, a mixing unit, a traction unit and a controller, wherein the mixing drum comprises a drum body and a drum cover; the mixing unit comprises a rotating shaft, a sleeve, a mixing rod and asupporting block; and the traction unit comprises a circular frame body, a first steel rope, a first gear, a second gear, a pulley, a first cross rod, a second cross rod, a first vertical rod, a second vertical rod, a first rack, a second rack, a first guide rail and a second guide rail. Raw materials are uniformly mixed by the mixing rod through rotation of the rotating shaft, the circular framebody is moved through cooperation of the first gear, the second gear and the first steel rope, and meanwhile, the raw materials are autonomously and quantitatively added through cooperation of a swingrod and a push block, so that the raw materials are mixed more sufficiently, and the uniform mixing degree of the raw materials is improved.

Description

Technical field [0001] The present invention relates to the field of chemical fiber woven fabrics, and is specifically a modified polyacrylonitrile fiber. Background technique [0002] Polypropylene nitriles developed by DuPont Company in my country are called acrylic, and the so-called acrylic fibers refer to a copolymer containing no less than 85% of acrylonitrile in the percentage of fiber. Acrylic has a very important location in synthetic fibers, and the fastest growing in China, early in the 1950s, my country began to study acrylic. Acrylic fibers have excellent physical mechanical properties, many aspects of performance and wool, even more than wool, so there is "artificial wool". The advantage of acrylic is soft, compressed, good, warm, with bright color, fluffy appearance, and excellent strength, and has good molding performance, wide application in engineering plastics, fibrous materials. [0003] There is also a method of preparing a modified polyacrylonitrile fiber, a...

Claims

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Application Information

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IPC IPC(8): D01F8/08D01F8/18D01F8/10D01F1/10D06M15/03D06M13/188B01F7/18B01F11/00B01F15/00D06M101/18D06M101/24D06M101/28
CPCD01F8/08D01F8/18D01F8/10D01F1/10D06M15/03D06M13/188D06M2101/28D06M2101/24D06M2101/18B01F27/90B01F31/00B01F31/445B01F31/70B01F35/3231B01F35/332B01F35/3204
Inventor 王艳军陈昊
Owner 王艳军
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