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Composite fiber, preparation method and applications

A composite fiber and fiber technology, applied in fiber processing, fiber type, textile, etc., can solve the problems of complex conductive polymer process, weak graphene adhesion, rough fabric feel, etc., to improve adhesion firmness and increase conductivity , Improve the effect of firmness

Inactive Publication Date: 2017-07-07
SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the conductive fiber has been greatly developed, there are still some problems, such as the fabric made of metal conductive fiber and metal-plated conductive fiber feels rough, poor comfort, conductive polymer process is more complicated, and the pollution is serious
Furthermore, the adhesion of graphene to fibers or fiber products prepared by coating or simple impregnation process is not firm, and the additional function will be lost after repeated washing.

Method used

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  • Composite fiber, preparation method and applications
  • Composite fiber, preparation method and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0071] A kind of composite fiber, concrete steps comprise:

[0072] (1) molten polymer, obtains as-spun fiber through melt-spinning;

[0073] (2) prepare the first graphene dispersion liquid, the particle size of graphene in the first graphene dispersion liquid is between 0.1~1 μm; prepare the second graphene dispersion liquid, graphite in the second graphene dispersion liquid The particle size of alkene is between 1 and 2 μm;

[0074] (3) the as-spun fiber of step (1) is immersed in the first graphene dispersion at the first temperature, then take out the fiber impregnated with the first graphene, and continue to immerse it in the second graphene dispersion for 30min, Thereafter, it was taken out and dried to obtain a composite fiber.

[0075] Performance test: The obtained modified fiber is tested according to GB / T 14342-2015; after that, the modified fiber is washed 50 times, and the washed modified fiber is continued according to GB / T 14342-2015 detection.

[0076] Tab...

Embodiment 10～13

[0081] A composite fiber, the difference from Example 7 is that nanocellulose (aspect ratio 80~120, diameter below 10nm) is dispersed simultaneously in the first graphene dispersion liquid described in step (2), and described nanocellulose is in The concentration in the dispersion liquid is 0.1wt%, 0.5wt%, 1wt%, 2wt%.

[0082] Using the same performance test method as in Example 7, the test results are shown in Table 2.

Embodiment 14

[0084] A composite fiber, the difference from Example 3 is that the first and second graphene dispersions are all replaced with graphene oxide dispersions, and the reduction step is carried out, specifically: in step (3) from the second graphene The fiber taken out from the dispersion liquid is put into a hydrazine hydrate reducing solution for reduction treatment, and then dried to obtain a composite fiber. Using the same performance test method as in Example 3, the test results are shown in Table 2.

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Abstract

The invention relates to a preparation method of composite fiber. The preparation method comprises the following steps: (1) immersing nascent fiber in graphene substance dispersing solution with particle size of being less than 1mum for the first time, to obtain fiber immersed with graphene substances with the particle size of being less than 1mum; and (2) immersing the fiber immersed with graphene substances with the particle size of being less than 1mum, obtained in the step (1), into dispersing solution containing graphene substance with particle size of being less than 1-20mum for the second time, and then cooling and drying to obtain composite fiber, wherein the temperature of the secondary immersing is lower than that of the first-time immersing. The graphene substances inside the fiber are evenly distributed, especially are evenly distributed in longitudinal direction; the density of graphene is increased, and the conductivity of the fiber is enhanced; and the firmness of the graphene substances is increased, and the washability of the fiber is improved.

Description

technical field [0001] The invention belongs to the field of fiber preparation, in particular to a composite fiber, a preparation method and its application, in particular to a conductive composite fiber, a preparation method and its application. Background technique [0002] The development of conductive fibers began in the 1960s. Conductive fibers usually refer to those with a specific resistance lower than 10 in a standard environment (temperature 20°C, humidity 65%). 7 Ω·cm. Its development process roughly includes four stages: metal fiber, carbon fiber and composite conductive fiber containing carbon black composite polymer, conductive fiber containing metal salt, conductive polymer conductive fiber. Although conductive fibers have been greatly developed, there are still certain problems, such as fabrics made of metal conductive fibers and metal-plated conductive fibers, which have rough hand feeling and poor comfort, and the conductive polymer process is complicated a...

Claims

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Application Information

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IPC IPC(8): D06M11/74D06M15/05D02G3/36D02G3/04D03D15/00D06M101/32D06M101/34D06M101/38D06M101/28D06M101/24
CPCD02G3/04D02G3/36D06M11/74D06M15/05D06M2101/24D06M2101/28D06M2101/32D06M2101/34D06M2101/38D03D15/47
Inventor 张金柱王文平张安刘顶
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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