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Preparation method of graphene flame retardant polyamide fiber

A technology of nylon fiber and graphene, which is applied in the manufacture of fire-resistant and flame-retardant filaments, melt spinning, stretch spinning, etc., can solve the problems of difficult production, high cost, and poor functionality, and achieve low cost and reduced raw materials Effect of cost, excellent elongation at break properties

Inactive Publication Date: 2018-03-16
福州市晋安区技智企业管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the problems of high cost, difficult production, and poor functionality of flame-retardant fibers in the prior art, the present invention provides a method for preparing graphite-flame-retardant nylon fibers. The in-situ polymerization of monomers is the perfect combination of graphene and fibers. On the one hand, it improves the mechanical properties of the fibers, namely the breaking strength and tensile properties.

Method used

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  • Preparation method of graphene flame retardant polyamide fiber
  • Preparation method of graphene flame retardant polyamide fiber
  • Preparation method of graphene flame retardant polyamide fiber

Examples

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Effect test

Embodiment 1

[0032] The preparation method of graphene flame-retardant nylon fiber in the present embodiment, comprises the steps:

[0033] Step 1: If figure 1 Shown is the scanning electron microscope image of untreated graphene. Untreated graphene, magnesium hydroxide, titanium dioxide and water are uniformly mixed at a weight ratio of 2:5:3:80, and placed in an ultrasonic cell after mixing. Disperse evenly in a pulverizer to obtain a graphene suspension;

[0034] Step 2: Take 80 parts by weight of the polyamide fiber monomer and add it to the graphene suspension and heat it to 100°C for a full reaction, then continue heating to completely evaporate the solvent, and dry it in an oven at 60-80°C to obtain a composite Material;

[0035] Step 3: Extrude and granulate the composite material through twin-screw;

[0036] Step 4: Spin the masterbatch obtained in Step 3, then slowly cool and form, oil, stretch, wind and store, and make nylon fibers, such as figure 2 Shown is the scanning el...

Embodiment 2

[0038] The preparation method of graphene flame-retardant nylon fiber in the present embodiment, comprises the steps:

[0039] Step 1: uniformly mix graphene oxide, aluminum hydroxide, titanium dioxide and water at a ratio of parts by weight of 5:5:5:90, and place the mixture in an ultrasonic cell pulverizer to disperse evenly to obtain a graphene suspension;

[0040] Step 2: Take 70 parts by weight of the polyamide fiber monomer and add it to the graphene suspension, heat it to 100°C for a full reaction, continue heating to completely evaporate the solvent, and dry it in an oven at 60-80°C to obtain a composite Material;

[0041] Step 3: Extrude and granulate the composite material through twin-screw;

[0042] Step 4: Spin the masterbatch obtained in Step 3, then slowly cool and form, oil, stretch, wind and put into storage to obtain nylon fiber.

Embodiment 3

[0044] The preparation method of graphene flame-retardant nylon fiber in the present embodiment, comprises the steps:

[0045] Step 1: Uniformly mix untreated graphene, antimony oxide, titanium dioxide, and water at a ratio of parts by weight of 4:6:4:85, and place the mixture in an ultrasonic cell pulverizer to disperse evenly to obtain a graphene suspension;

[0046] Step 2: Take 60 parts by weight of the polyamide fiber monomer and add it to the graphene suspension and heat it to 100°C for a full reaction, then continue heating to completely evaporate the solvent, and dry it in an oven at 60-80°C to obtain a composite Material;

[0047] Step 3: Extrude and granulate the composite material through twin-screw;

[0048] Step 4: Spin the masterbatch obtained in Step 3, then slowly cool and form, oil, stretch, wind and put into storage to obtain nylon fiber.

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Abstract

The invention discloses a method for preparing graphene flame-retardant nylon fiber, which belongs to the field of flame-retardant fiber preparation, and comprises the following steps: uniformly mixing graphene, flame retardant, titanium dioxide and dispersant, and placing ultrasonic cell pulverization after mixing Disperse evenly in the instrument; add the polyamide fiber monomer to the graphene suspension as a catalyst for in-situ polymerization, and dry in an oven at 60-80°C to obtain a composite material; the composite material is extruded by twin-screw, granulated, Spinning to prepare graphene flame-retardant nylon fiber. The beneficial effects of the present invention are: the flame-retardant nylon fiber obtained by the method of in-situ polymerization has the dual advantages of flame-retardant and antistatic, has excellent elongation at break, and graphene has a high specific surface area and sp2 hybrid structure. On the one hand, the inorganic flame retardant is evenly spread on the graphene surface instead of disorderly stacking; on the other hand, graphene forms an effective bonding force between the flame retardant and the nylon monomer, which enhances the mechanical strength of the fiber.

Description

technical field [0001] The invention relates to the field of preparation of flame-retardant fibers, in particular to a method for preparing graphite flame-retardant nylon fibers. Background technique [0002] Nylon fiber is an industrially produced synthetic fiber with good clothing properties. As a synthetic fiber, nylon fiber does not have flame retardancy. Therefore, nylon fiber is used as a raw material for clothing or for military and construction. Flammable hazard. However, general flame-retardant fibers often do not have good clothing properties, making them not perfect when used as clothing or as military or architectural special purposes. [0003] Graphene is a single-layer graphite sheet exfoliated from graphite. It has a two-dimensional honeycomb structure. Its specific surface area is as high as 2630m2 / g. It has excellent electrical conductivity, thermal conductivity, heat resistance, physical and mechanical properties and gas barrier properties. The tensile st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/07D01F1/09D01F1/10D01D5/08D01D5/088D01D5/16
CPCD01F6/90D01D5/08D01D5/088D01D5/16D01F1/07D01F1/09D01F1/10
Inventor 郑小华
Owner 福州市晋安区技智企业管理咨询有限公司
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