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A graphene-reinforced ultrafine synthetic leather fiber

A graphene and synthetic leather technology, applied in the direction of fiber processing, fiber chemical characteristics, filament/line forming, etc., can solve the problems of easy generation of static electricity, easy moldy products, insufficient breaking strength, etc., and achieve strong flexibility and breaking strength. High, improve quality and overall performance effect

Active Publication Date: 2019-01-29
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PA6 microfiber after sea-island fiber reduction has excellent performance in many aspects, but also has disadvantages, such as: easy to generate static electricity, breaking strength is not high enough in special occasions, and the product is easy to mold after finishing, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] a. Graphene and nylon 6 are mixed and extruded through a twin-screw extruder at a weight ratio of 1:10. The head temperature is 280°C, cooled in water, sliced, and vacuum-dried under the conditions of -0.05MPa and 115°C for 3 hours to obtain a graphene-containing nylon 6 masterbatch.

[0025] b. Through the metering device, the weight ratio (graphene-containing nylon 6 masterbatch: nylon 6): the ratio of sea component COPET = (2:48): 50 is used for sea-island fiber island-fixed melt composite spinning, that is, the sea component After drying, the island components are extruded, melted and metered by a screw extruder, spun by a spinning assembly, cooled and formed, oiled, coiled, bundled, drawn, crimped, shaped, and cut to obtain island-in-the-sea short fibers .

[0026] c. The sea-island fibers are subjected to alkali reduction to obtain graphene-enhanced ultrafine synthetic leather fibers.

[0027] The sea-island fiber prepared in this example has a fineness of 4.9 d...

Embodiment 2

[0029] a. Graphene oxide and nylon 6 are mixed and extruded through a twin-screw extruder at a weight ratio of 1:20. The head temperature is 285°C. Cool in water, slice, and vacuum-dry for 5 hours under the conditions of -0.07MPa and 105°C to obtain a graphene-containing nylon 6 masterbatch.

[0030] b. Through the metering device, the weight ratio (graphene-containing nylon 6 masterbatch: nylon 6): sea component PE=(2:48):50 is used for sea-island fiber adventitious island blend spinning, that is, sea component and The island component is measured and mixed after drying, extruded by a screw extruder, melted, spun by a spinning assembly, cooled and formed, oiled, drawn, crimped, shaped, and cut to obtain sea-island short fibers.

[0031] c. The sea-island fibers are subjected to toluene reduction to obtain graphene-enhanced ultrafine synthetic leather fibers.

[0032] The island-in-the-sea short fiber prepared in this example has a fineness of 5.1 dtex and a strength of 4.9 ...

Embodiment 3

[0034] a. Graphene and nylon 6 are mixed and extruded through a twin-screw extruder at a weight ratio of 1:10. The head temperature is 275°C. Cool in water, slice, and vacuum-dry under the conditions of -0.07MPa and 115°C for 3 hours to obtain a graphene-containing nylon 6 masterbatch.

[0035] b. Through the metering device, the weight ratio (graphene-containing nylon 6 masterbatch: nylon 6): sea component WSPU=(3:47):50 is used for sea-island fiber composite spinning, that is, sea component and After the island components are dried, they are extruded, melted and metered by a screw extruder, spun by a spinning assembly, cooled and formed, oiled, wound, bundled, drawn, crimped, shaped, and cut to obtain sea-island short fibers.

[0036] c. The sea-island fibers are subjected to alkali reduction to obtain graphene-enhanced ultrafine synthetic leather fibers.

[0037] The sea-island fiber prepared in this example has a fineness of 4.5 dtex and a strength of 5.3 cN / dtex.

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PUM

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Abstract

A graphite-enhanced ultrafine synthetic leather fiber is provided. Graphite nylon 6 master batch is prepared via a twin-screw extrusion way; the nylon 6 master material is added to nylon 6 granules via a metering device for sea-island melt spinning; and graphite-enhanced ultrafine fibers can be achieved after decrement and splitting. The graphite-enhanced ultrafine synthetic leather fiber is characterized by high breaking tenacity, static resistance, bacteria resistance, aging resistant and strong flexibility; ultrafine fiber synthetic leather quality and comprehensive performance can be improved when the graphite-enhanced ultrafine synthetic leather fiber is applied to synthetic leather industry; and traditional sea-island fiber spinning equipment can be employed for production.

Description

technical field [0001] The invention relates to the field of differentiated fibers, in particular to a graphene-reinforced ultrafine synthetic leather fiber. Background technique [0002] Ultrafine fibers usually refer to fibers with a denier of 0.3 denier (0.5 microns in diameter), which are widely used and occupy an important position in the national economy. Microfiber synthetic leather is a composite material developed based on sea-island superfine fibers. It is the third-generation synthetic leather that is most likely to replace real leather. It is widely used in footwear, ball games, sofas, bags and other fields. Microfiber synthetic leather has been developed rapidly both at home and abroad. The domestic output of microfiber synthetic leather alone was nearly 100 million meters in 2014. [0003] At present, the superfine fiber synthetic leather industry mostly uses PA6 as the island component for sea-island fiber spinning. The PA6 microfibers after sea-island fibe...

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): D01D5/36D01D5/08D01F9/12D01F1/10
CPCD01D5/08D01D5/36D01F1/10D01F9/12
Inventor 颜俊范浩军陈意许凡平张家发白玲
Owner SICHUAN UNIV
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