A kind of high-speed spinning nylon 6 chips and preparation method thereof

A high-speed spinning, nylon technology, used in rayon manufacturing, textile and papermaking, monocomponent polyamide rayon, etc. Processability, good effect of adjusting molecular weight

Active Publication Date: 2020-12-29
WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the Chinese patent application number CN201210123415.9 is a high-speed spinning bright nylon 6 slice and its manufacturing method. The method uses caprolactam, surface-treated barium sulfate, molecular weight regulator and light stabilizer as raw materials , the prepared slices are spun at a spinning speed of 4500 m / min, and the full volume rate reaches more than 90%; but when the spinning speed reaches 6000 m / min, broken filaments are prone to occur, and the full volume rate will be large Amplitude reduction

Method used

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  • A kind of high-speed spinning nylon 6 chips and preparation method thereof
  • A kind of high-speed spinning nylon 6 chips and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: a kind of high-speed spinning nylon 6 chips, comprising the following materials in parts by weight:

[0042] Caprolactam 2300 parts;

[0043] 2 parts polycarbonate;

[0044] 1 part of titanium dioxide;

[0045] 1 part filler;

[0046] 2 parts toughening agent;

[0047] 1 part light stabilizer;

[0048] 3 parts of cross-linking agent;

[0049] 1 part of flame retardant;

[0050] 1 part antioxidant;

[0051] 7 parts of regulator;

[0052] Described conditioner comprises following material by weight:

[0053] 4 parts of 4,4-dimethyl-2,4-diphenyl-1-butene;

[0054] 2 parts of diisopropyl di(acetylacetonate) titanate;

[0055] 1 part of 3,3',5,5'-tetra-tert-butyldiphenolquinone;

[0056] 2 parts of polyethylene glycol mono-4-nonylphenyl ether;

[0057] 1 part of tris(dipropylene glycol) phosphite;

[0058] 2 parts of 2,2-dimethyl-1,3-propanediol.

[0059] The filler is a mixture of calcium carbonate and magnesium carbonate with a mass ratio of 2:1...

Embodiment 2

[0075] Embodiment 2: a kind of high-speed spinning nylon 6 chips, comprising the following materials in parts by weight:

[0076] Caprolactam: 2000 parts;

[0077] 1 part polycarbonate;

[0078] 2 parts of titanium dioxide;

[0079] 1 part filler;

[0080] 1 part of toughening agent;

[0081] 1 part light stabilizer;

[0082] 2 parts of crosslinking agent;

[0083] 1 part of flame retardant;

[0084] 1 part antioxidant;

[0085] 5 parts of regulator;

[0086] Described conditioner comprises following material by weight:

[0087] 4 parts of 4,4-dimethyl-2,4-diphenyl-1-butene;

[0088] 2 parts of diisopropyl di(acetylacetonate) titanate;

[0089] 1 part of 3,3',5,5'-tetra-tert-butyldiphenolquinone;

[0090] 2 parts of polyethylene glycol mono-4-nonylphenyl ether;

[0091] 1 part of tris(dipropylene glycol) phosphite;

[0092] 2 parts of 2,2-dimethyl-1,3-propanediol.

[0093] The filler is a mixture of calcium carbonate and magnesium carbonate with a mass ratio of 2...

Embodiment 3

[0109] Embodiment 3: a kind of high-speed spinning nylon 6 chips, comprising the following materials in parts by weight:

[0110] Caprolactam: 2500 parts;

[0111] 3 parts polycarbonate;

[0112] 1 part of titanium dioxide;

[0113] 2 parts filler;

[0114] 2 parts toughening agent;

[0115] 2 parts of light stabilizer;

[0116] 4 parts of crosslinking agent;

[0117] 1 part of flame retardant;

[0118] 1 part antioxidant;

[0119] 8 parts of regulator;

[0120] Described conditioner comprises following material by weight:

[0121] 4 parts of 4,4-dimethyl-2,4-diphenyl-1-butene;

[0122] 2 parts of diisopropyl di(acetylacetonate) titanate;

[0123] 1 part of 3,3',5,5'-tetra-tert-butyldiphenolquinone;

[0124] 2 parts of polyethylene glycol mono-4-nonylphenyl ether;

[0125] 1 part of tris(dipropylene glycol) phosphite;

[0126] 2 parts of 2,2-dimethyl-1,3-propanediol.

[0127] The filler is a mixture of calcium carbonate and magnesium carbonate with a mass ratio o...

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
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PUM

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Abstract

The invention discloses a high-speed spinning polyamide-6 granula and a preparation method thereof. Caprolactam is used as a substrate; meanwhile, polycarbonate and titanium dioxide are added; throughthe addition of the polycarbonate and the titanium dioxide, the weather resistance, the stretch intensity and the thermal stability of the polyamide-6 granula can be enhanced; filling agents, toughening agents, light stabilizers, crosslinking agents, fire retardants, antioxidants and regulating agents are also added for modifying the polyamide-6 granula. As the key point of the invention, a mixture of 4,4-dimethyl-2,4-diphenyl-1-butylene, bis(acac acetylacetonate)diisopropyl titanate, 3,3',5,5'-tetra-tert-butyl diphenolic quinone, polyethylene glycol mono-4-nonyl phenyl ether, tri(dipolypropylene glycol)phosphite ester and 2,2-dimethyl-1,3-propanediol is selected in an aspect of the regulating agents; through the regulating effect of the regulating agents, the molecular weight of the prepared polyamide-6 granula is distributed between 1.30 and 1.45; when the spinning speed is 6000 meters / minute, the full roll rate of the polyamide-6 granula in five-day spinning reaches 90 percent or higher; the work efficiency is greatly improved; the unit cost is reduced.

Description

technical field [0001] The invention relates to the technical field of chemical fiber textiles, in particular to a high-speed spinning nylon 6 slice and a preparation method thereof. Background technique [0002] At present, one of the development trends in the field of chemical fiber textile technology is to continuously increase the spinning speed. The spinning speed of nylon 6 fiber, an important product of chemical fiber, has grown from a few hundred meters per minute to several kilometers per minute, which has greatly improved. It improves production efficiency, reduces unit cost, and the fibers produced by it have the advantages of high physical stability and are suitable for post-processing such as texturing, so they are widely used. [0003] However, the high-speed spinning of nylon 6 has a relatively high slice of the raw material for spinning, and its viscosity, moisture, and relative molecular mass distribution will all affect the spinning process and the properti...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/90D01F1/10
CPCD01F1/10D01F6/90
Inventor 张伟禄江峰朱露萍刘若望樊宏斌
Owner WENZHOU UNIV
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