Composite fiber, preparation method and applications

A composite fiber and fiber technology, which is applied in the field of preparation, conductive composite fiber and composite fiber, can solve the problems of affecting fiber strength, complex process, damaged fiber, etc., and achieve the effect of improving uniform distribution, improving electrical conductivity, and improving 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

However, the method is complex, and the alkali treatment step damages the fiber. After the graphene is loaded, in addition to affecting the strength of the fiber, it will also cause poor adhesion of the graphene. The conductivity of the fiber will be greatly attenuated due to the increase in the number of washing times.

Method used

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  • Composite fiber, preparation method and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0066] A kind of composite fiber, concrete steps comprise:

[0067] (1) molten polymer, obtains as-spun fiber through melt-spinning;

[0068] (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;

[0069] (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.

[0070] 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.

[0071] Tab...

Embodiment 10～13

[0075] 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%.

[0076] Using the same performance test method as in Example 7, the test results are shown in Table 2.

Embodiment 14

[0078] 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: immersing nascent fiber in graphene substance dispersing solution and then cooling and drying to obtain composite fiber, wherein the range of immersing temperature is at high-elastic-state temperature of the nascent fiber material. By immersing nascent fiber into graphene substance dispersing solution at the high-elastic-state temperature, the compounding of the graphene substances inside and outside the fiber can be realized, and the evenness and firmness of the graphene substances in the fiber can be increased; the conductivity of the fiber can be enhanced by adding graphene and/or biomass graphene; the far infrared performance of the fiber can be further strengthened by adding graphene oxide and/and biomass graphene; and the graphene substances can be effectively added inside the fiber by adopting the preparation method, and the fiber is externally cladded with the graphene substances.

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/74D06M15/05D06M101/24D06M101/28D06M101/32D06M101/34D06M101/38
CPCD06M11/74D06M15/05D06M2101/24D06M2101/28D06M2101/32D06M2101/34D06M2101/38
Inventor 张金柱王文平张安刘顶
Owner SHANDONG SHENGQUAN NEW MATERIALS CO LTD
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