Production method of antistatic nylon 56 fibers

A production method and antistatic technology, applied in the manufacture of conductive/antistatic filaments, single-component polyamide artificial filaments, etc., can solve the problems of uncomfortable wearing of fabrics, prone to static electricity in polyamide fibers, etc., and achieve antistatic Excellent electrostatic performance, high moisture regain, easy to disperse effect

Pending Publication Date: 2020-06-23
优纤科技(丹东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the technical problems such as polyamide fibers are prone to static electricity and the fabric is uncomfortable to wear, and provide a kind of antistatic nylon 56 fiber and its production method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Example 1 Preparation of antistatic bio-based nylon 56 fiber.

[0052] (1) Under nitrogen protection, dissolve bio-based pentane diamine in deionized water, gradually add adipic acid, control the molar ratio of adipic acid to bio-based pentane diamine to 1:1.05, and prepare the mass concentration as 50% nylon 56 saline solution. The prepared nylon 56 salt aqueous solution and 2% molecular weight regulator are added into the reactor together, and the pressure is maintained for 2 hours at a temperature of 240°C and a pressure of 1.8MPa. Then release the pressure in the reactor and add 7% antistatic agent PZA. When the temperature rises to 285° C., vacuum is applied to reduce the system pressure to -0.06 MPa, and the system is continuously stirred for 1.5 hours under vacuum to obtain nylon 56 polymer melt. Then it is conveyed into the spinning box through the direct spinning conveying pipeline. In the spinning box, the diameter of the spinneret is 400mm, the number of hole...

Embodiment 2

[0057] Example 2 Preparation of antistatic bio-based nylon 56 fiber.

[0058] (1) Under nitrogen protection, dissolve bio-based pentane diamine in deionized water, gradually add adipic acid, control the molar ratio of adipic acid to bio-based pentane diamine to 1:1.1, and obtain a mass concentration of 50% nylon 56 saline solution. The prepared nylon 56 salt aqueous solution and 2% molecular weight regulator are added into the reactor together, and the pressure is maintained for 2 hours at a temperature of 240°C and a pressure of 1.8 MPa. Then release the pressure in the reactor and add 8% antistatic agent PZA. When the temperature rises to 285° C., vacuum is applied to reduce the system pressure to -0.06 MPa, and the system is continuously stirred for 1.5 hours under vacuum to obtain nylon 56 polymer melt. Then it is conveyed into the spinning box through the direct spinning conveying pipeline. In the spinning box, the diameter of the spinneret is 400mm, the number of holes i...

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Abstract

The invention discloses a production method of antistatic nylon 56 fibers. The method comprises the following steps: (1) under the protection of nitrogen, bio-based pentane diamine reacts with adipicacid in water to obtain a nylon 56 saline solution; (2) the nylon 56 saline solution reacts with a molecular weight regulator, then an antistatic agent is added, vacuumizing is performed, and nylon 56polymer melt is obtained by stirring; and (3) the nylon 56 polymer melt is put into a spinning manifold and the antistatic nylon 56 fibers are obtained by spinning, cooling, oiling and moistening, drafting, tension heat setting, curling, oiling, relaxation heat setting and cutting. The antistatic nylon 56 fibers obtained by the invention have the advantages of excellent antistatic performance, good fabric air permeability, high moisture regain, wear resistance and comfort and can be widely applied to the aspects of textiles, general engineering materials, automobile manufacturing, sports equipment, aviation and space navigation.

Description

Technical field [0001] The invention relates to a production method of antistatic nylon 56 fiber. Background technique [0002] Since 1960, China has started the industrialized production of nylon 66 fiber, but currently there is no self-developed nylon 66 production technology in China, and there are only two domestic manufacturers (Liaoning Yinzhu Chemical Textile Group and Pingdingshan Shenma Group) The technologies are all imported. The main reason for this is that as the main raw material of nylon 66-hexamethylene diamine (made from adiponitrile), currently only a few well-known large companies in developed countries can produce it, including DuPont of the United States and Rona Planck of France The company, Monsanto in the United States, BASF in Germany, Latisi Group chemical plant in Italy and Asahi Kasei in Japan, their production technology is still in a highly monopolistic state. There is no industrialized production technology and equipment for adiponitrile in my cou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/09C08G69/26
CPCD01F6/90D01F1/09C08G69/26
Inventor 陈铁东樊丽君于广慧何欣欣辛运龙高绯赵国义宁健
Owner 优纤科技(丹东)有限公司
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