Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flame-retardant antistatic polyamide fiber and preparation method thereof

An anti-static, nylon technology, applied in the field of fibers, can solve the problems of carbon nanotubes with large specific surface area, poor dispersion effect, restricted performance, etc., and achieve the effect of improving intrinsic conductivity, developing voids, and maintaining conductivity.

Active Publication Date: 2019-10-22
HANGZHOU GAOXI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large specific surface area and ultra-high aspect ratio of carbon nanotubes, and the strong van der Waals force between unmodified carbon nanotubes, carbon nanotubes are entangled with each other and difficult to separate, forming clusters or bundles. shape aggregates, thus showing a poor dispersion effect, which restricts the full play of its performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flame-retardant antistatic polyamide fiber and preparation method thereof
  • Flame-retardant antistatic polyamide fiber and preparation method thereof
  • Flame-retardant antistatic polyamide fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029](1) Add 3 parts by mass of carboxylated carbon nanotube aqueous dispersion, 4 mass parts of graphene oxide aqueous dispersion, and 0.05 mass part of molecular weight regulator into 100 mass parts of caprolactam melt, at 80°C at high speed 300 Stir to form a dispersion. The carbon-to-oxygen ratio of the carboxylated carbon nanotubes is 2.5, and the mass concentration of the carboxylated carbon nanotube aqueous dispersion is 1%. The carbon-to-oxygen ratio of the graphene oxide is 2, and the mass concentration of the graphene oxide aqueous dispersion is 1%;

[0030] (2) 0.3 parts of high DBP value nano-carbon black and 0.9 part of low DBP value nano-carbon black are mixed and added to the mixed solution obtained in step (1), and high-speed shear dispersion is carried out by an emulsifying homogenizer at 80 ° C; wherein The DBP value of nano carbon black with high DBP value is 360, and the DBP value of carbon black with low DBP value is 240;

[0031] (3) Under nitrogen pro...

Embodiment 2

[0037] (1) Add 3 parts by mass of carboxylated carbon nanotube aqueous dispersion, 4 mass parts of graphene oxide aqueous dispersion, and 0.05 mass part of molecular weight regulator into 100 mass parts of caprolactam melt, at 80 ° C at a high speed of 500 Stir to form a dispersion. The carbon-to-oxygen ratio of the carboxylated carbon nanotubes is 4, and the mass concentration of the carboxylated carbon nanotube aqueous dispersion is 2%. The carbon-to-oxygen ratio of the graphene oxide is 5, and the mass concentration of the graphene oxide aqueous dispersion is 3%;

[0038] (2) 0.3 parts of high DBP value nano-carbon black and 0.9 part of low DBP value nano-carbon black are mixed and added to the mixed solution obtained in step (1), and high-speed shear dispersion is carried out by an emulsifying homogenizer at 80 ° C; wherein The DBP value of nano carbon black with high DBP value is 400, and the DBP value of carbon black with low DBP value is 240;

[0039] (3) Under the pr...

Embodiment 3

[0045] (1) Add an aqueous dispersion of 3 mass parts of carboxylated carbon nanotubes, an aqueous dispersion of 4 mass parts of graphene oxide, and 0.3 mass parts of a molecular weight regulator into 100 mass parts of a caprolactam melt, at 80 ° C at a high speed of 500 Stir to form a dispersion. The carbon-to-oxygen ratio of the carboxylated carbon nanotubes is 6, and the mass concentration of the carboxylated carbon nanotube aqueous dispersion is 4%. The carbon-to-oxygen ratio of the graphene oxide is 4, and the mass concentration of the graphene oxide aqueous dispersion is 5%.

[0046] (2) 0.3 parts of high DBP value nano-carbon black and 1.2 parts of low DBP value nano-carbon black are mixed and added to the mixed solution obtained in step (1), and high-speed shear dispersion is carried out by an emulsifying homogenizer at 80 ° C; wherein The DBP value of nano carbon black with high DBP value is 380, and the DBP value of carbon black with low DBP value is 280;

[0047] (...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses flame-retardant antistatic polyamide fiber and a preparation method thereof. Carbon black with specific DBP value is selected to be compounded with carbon nanotube and grapheneaccording to a specific proportion to form a nano composite structure, so that the polyamide fiber has high conductivity; composite polyamide fiber having flame retardance and antistatic performancecan be prepared by subjecting the nano composite structure to in-situ copolymerization and melt-spinning with caprolactam. By adding trace amount of the carbon nanotube ((0.12%), trace amount of graphene ((0.2%) and small amount of carbon black ((2.8%), electroconductivity and flame retardance of conventional polyamide fiber can be improved remarkably, and the flame-retardant antistatic polyamidefiber is high in spinnability, stable in performance, low in cost and low in industrial difficulty and has remarkable practical value.

Description

technical field [0001] The invention belongs to the field of fibers, and in particular relates to a flame-retardant and antistatic nylon and a preparation method thereof. Background technique [0002] In daily life, when two objects of different materials are in contact and then separated, static electricity can be generated. This is because one object loses a certain amount of charge and becomes positively charged, while the other object gains charge and becomes negatively charged. These charges are difficult to neutralize easily. It will gradually accumulate to form static electricity. The main ways to form static electricity in daily life are friction, induction and conduction. Static electricity itself is a very common phenomenon, but when the static electricity is accumulated and released violently, it is very easy to cause circuit breakdown, information interference, fire, electric shock and other phenomena, which can cause discomfort to the human body, increase dust ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D01F6/90D01F1/07D01F1/09C08G69/14C08G69/16
CPCC08G69/14C08G69/16D01F1/07D01F1/09D01F6/90
Inventor 陈琛韩燚高超
Owner HANGZHOU GAOXI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com