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Functionalization polyacrylonitrile resin, production and application of the same in fibre

A technology of polyacrylonitrile resin and polyacrylonitrile fiber, which is applied in the field of functionalized polyacrylonitrile resin and its preparation and application, can solve the problems of reduced strength and lack of compatibility of modified fibers, and achieve good performance and improved modification Efficiency, the effect of excellent compatibility

Inactive Publication Date: 2008-04-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of good compatibility between natural macromolecules and their derivative modifiers and polyacrylonitrile, the strength of modified fibers will be greatly reduced

Method used

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  • Functionalization polyacrylonitrile resin, production and application of the same in fibre
  • Functionalization polyacrylonitrile resin, production and application of the same in fibre
  • Functionalization polyacrylonitrile resin, production and application of the same in fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In the reactor with reflux condenser, electric stirrer and electric heating temperature controller, add 39g polyhexamethylenediamine hydrochloride biguanide methacrylate (molecular weight 1000) and 1300g DMSO successively, after stirring and dissolving, add 351g acrylonitrile , and gradually raised the temperature to 72°C. Then, azobisisobutyronitrile (2.0 g) dissolved in DMSO was added dropwise, and reacted for 4 hours. After the reaction, unreacted monomers were removed under reduced pressure to obtain a DMSO solution of functionalized polyacrylonitrile resin. The solid content of the solution was 19.8%, and the content of the guanidinium salt oligomer in the functionalized polyacrylonitrile was 5.6%.

[0043] After blending this solution with a conventional polyacrylonitrile / DMSO solution (solid content of 20%) at a ratio of 1:4.5 (by weight), defoaming is performed to prepare a spinning solution, which is formed by spinning, washing, stretching, Dry and densify th...

Embodiment 2

[0046] In a reactor with a reflux condenser, an electric stirrer and an electric temperature controller, add 56g of polyethylenediamine guanidine hydrochloride methacrylate (molecular weight 700) and 1300g of water successively, after stirring and dissolving, add 500g of acrylonitrile , and gradually raised the temperature to 72°C. Then, potassium persulfate (3.0 g) dissolved in water was added dropwise, and reacted for 4 hours. After the reaction, cool, filter and wash with water. The obtained copolymer white powder was vacuum-dried at 80° C. to obtain a functionalized polyacrylonitrile resin. The conversion rate of the reaction is 68.5%, and the content of the guanidinium salt oligomer in the functionalized polyacrylonitrile resin is 6.2%.

[0047] Take 160g of functionalized polyacrylonitrile resin and 800g of conventional polyacrylonitrile powder and mix them uniformly, dissolve them together in 7kg of 50% NaSCN aqueous solution to make a uniform solution with a solid co...

Embodiment 3

[0050] In the reactor with reflux condenser, electric stirrer and electric heating temperature controller, add the acrylate (molecular weight 2000) of 39g polyhexamethylenediamine guanidine nitrate and 1300g water successively, after stirring and dissolving, add 221g acrylonitrile, gradually The temperature was raised to 72°C. Then, potassium persulfate (1.3 g) dissolved in water was added dropwise, and reacted for 4 hours. After the reaction is completed, the functionalized polyacrylonitrile resin is obtained by cooling, filtering, washing with water, and vacuum drying at 80°C. It was determined that the conversion rate of the reaction was 57.6%, and the content of the guanidinium salt oligomer in the functionalized polyacrylonitrile resin was 8.8%.

[0051] Get 150g of functionalized polyacrylonitrile resin and 1200g of conventional polyacrylonitrile powder to mix evenly, dissolve in 4.1kgDMF jointly, make the homogeneous solution that solid content is 30%, defoaming, prepa...

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Abstract

The present invention relates to functional polyacrylonitrile resin, the preparation and the application in fiber. The main chain of the resin is grafted with the guanidine salt oligomer of the following structure. Wherein, n is equal to 2 to 10; m is equal to 4 to 30; I is equal to 1 to 2; X is acrylamide, methyl acryl, itaconic acyl, Malay acyl, acrylic ester or methyl acrylic ester; Y is H or X; Z is Cl-, NO3-, HCO3-, or H2PO4-. The preparation method comprises solution copolymerization or water-phase suspension copolymerization. The application is that the functional polyacrylonitrile resin is blended with the ordinary polyacrylonitrile according to a ratio; the spinning solution can be prepared by defoaming; the functional polyacrylonitrile fiber can be prepared through spinning technology of spinning formation, washing, stretching, drying and compacting. The present invention not only maintains the original performances of polyacrylonitrile, but also has good antibacterial, anti-static and dyeing performances of acidic dyes. The present invention can be blended with the ordinary polyacrylonitrile for spinning; the polyacrylonitrile fiber has multi functionality.

Description

technical field [0001] The invention belongs to the field of polyacrylonitrile resin and its preparation and application, in particular to functionalized polyacrylonitrile resin and its preparation and application. Background technique [0002] Polyacrylonitrile fiber has fluffy texture, soft hand feeling, low density, good thermal performance, and high resilience. It is called "artificial wool" and is the best substitute for wool. Weather resistance, radiation resistance and corrosion resistance, and mildew and moth resistance. Therefore, it is widely used in clothing, decoration and industrial fields. At present, its output ranks fourth among synthetic fibers. [0003] With the development of social economy and the improvement of people's living standards, people have put forward higher requirements for the comfort and safety of clothing. Although polyacrylonitrile fiber has certain anti-mildew and anti-moth properties, it does not have antibacterial properties. At the...

Claims

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Application Information

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IPC IPC(8): C08F265/08C08F2/04C08F2/18D01F6/38D01D5/06D01D5/04
Inventor 张幼维危大福胡毅勍赵炯心吴承训
Owner DONGHUA UNIV
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