Graphene-modified polyamide-6 masterbatch material, fibers including same and application of fibers

A technology of graphene modification and polyamide, which is applied in the field of preparation of polyamide-6 materials, can solve the problems of difficult dispersion and easy aggregation of nanoparticles, and achieve the effect of uniform dispersion

Inactive Publication Date: 2018-11-02
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blending method refers to directly adding nanoparticles into the polymer matrix for mixing under the action of mechanical force, including melt blending method and solution blending method, etc. The blending method is simple to operate and easy to realize industrialization, but nanoparticles are very easy to Agglomeration, difficult to disperse uniformly in the polymer matrix

Method used

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  • Graphene-modified polyamide-6 masterbatch material, fibers including same and application of fibers
  • Graphene-modified polyamide-6 masterbatch material, fibers including same and application of fibers
  • Graphene-modified polyamide-6 masterbatch material, fibers including same and application of fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] (1) After melting 100 parts of caprolactam at 100-120°C, add 15 parts of o-phenylenediamine end-capping agent, 3 parts of deionized water, 0.5 parts of amino acid catalyst and 8 parts of epoxidized graphene in proportion, and stir for 30 minutes Obtain mixed slurry;

[0091] (2) React the slurry obtained in step (1) under a pressure of 3MPa, the reaction temperature is 260-280°C, and the reaction time is 6h;

[0092] (3) Add 8 parts of oxalic acid to the slurry in step (2) under normal pressure, the reaction temperature is 260-280°C, and the reaction time is 6h;

[0093] (4) Continue to react the slurry obtained in step (3) under a pressure below 200Pa, the reaction temperature is 220-240°C, and the reaction time is 3h;

[0094] (5) After the melt obtained in (4) is cooled, pelletized, extracted, and dried, a graphene-modified polyamide-6 masterbatch material is obtained.

Embodiment 2

[0096] (1) After melting 100 parts of caprolactam at 80-100 ° C, add 5 parts of isophthalic acid end-capping agent, 5 parts of deionized water, 2 parts of amino acid catalyst and 10 parts of epoxidized graphene in proportion, and stir for 60 minutes Obtain mixed slurry;

[0097] (2) React the slurry obtained in step (1) under a pressure of 5MPa, the reaction temperature is 220-240°C, and the reaction time is 3h;

[0098] (3) Add 5 parts of oxalic acid to the slurry in step (2) under normal pressure, the reaction temperature is 240-260°C, and the reaction time is 3h;

[0099] (4) continue to react the slurry obtained in step (3) under a pressure below 200Pa, the reaction temperature is 240-250°C, and the reaction time is 1h;

[0100] (5) After the melt obtained in (4) is cooled, pelletized, extracted, and dried, a graphene-modified polyamide-6 masterbatch material is obtained.

Embodiment 3

[0102] (1) After melting 100 parts of caprolactam at 110-120 °C, add (15 parts of m-phenylenediamine and 15 parts of p-phenylenediamine) end-capping agent, 2 parts of deionized water, 0.0001 part of phosphoric acid catalyst and 5 Part of epoxidized graphene, stirred for 60min to obtain mixed slurry;

[0103] (2) React the slurry obtained in step (1) under a pressure of 1MPa, the reaction temperature is 250-270°C, and the reaction time is 5h;

[0104] (3) Add 5 parts of sulfuric acid to the slurry in step (2) under normal pressure, the reaction temperature is 240-260°C, and the reaction time is 8h;

[0105] (4) Continue to react the slurry obtained in step (3) under a pressure below 200Pa, the reaction temperature is 240-250°C, and the reaction time is 3h;

[0106] (5) After the melt obtained in (4) is cooled, pelletized, extracted, and dried, a graphene-modified polyamide-6 masterbatch material is obtained.

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Abstract

The invention relates to a graphene-modified polyamide-6 masterbatch material. In the masterbatch material, a macromolecular chain of at least one polyamide-6 grows on a graphene lamella. A preparation method comprises the steps: adding functionalized graphene into hydrolysates obtained in a loop opening process and / or a polymerization process of caprolactam. A polyamide-6 macromolecular chain isgrafted on the graphene lamella, so that the dispersion problem of the graphene is effectively solved, and the polyamide-6 material with the uniformly-dispersed graphene is obtained; because the graphene lamella and the macromolecular chain of the polyamide-6 are connected through chemical bonds, in a preparation way process, the material has the advantages of good spinning performance and difficulty in breaking; through introduction and uniform distribution of the graphene, the far infrared performance and the antibacterial performance of the polyamide-6 material are improved.

Description

technical field [0001] The invention belongs to the field of preparation of polyamide-6 materials, and in particular relates to a graphene-modified polyamide-6 master batch material, fibers containing the graphene-modified polyamide-6 master batch material and applications thereof. Background technique [0002] Nylon fiber is the earliest synthetic fiber to realize industrialization in the world. It is also one of the varieties with excellent performance and wide range of uses in synthetic fibers. It has many excellent properties. In addition to properties such as moth-eaten and low moisture absorption, its main features are: high breaking strength, which is a kind of fiber with high strength, excellent wear resistance, much lighter than most synthetic fibers, good elasticity, and fiber elongation. The recovery rate, knot strength, and multiple bending strength are much higher than other synthetic fibers. With the improvement of people's living standards, people pay more an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K3/04C08G69/16D01F6/90D01F1/10
CPCC08G69/16C08K3/04C08K2201/003D01F1/10D01F6/90C08L77/02
Inventor 张金柱张安刘顶
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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