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Structural color fiber and preparation method thereof

A technology of structural color and fiber, which is applied in the field of synthetic fibers, can solve the problems of easy fading of structural color fiber, and achieve the effects of easy industrialization and application, and a simple preparation method

Active Publication Date: 2021-08-31
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]The above studies are all about assembling microspheres that produce structural color on the surface of the fiber, and the structural color fiber is easy to fade

Method used

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  • Structural color fiber and preparation method thereof
  • Structural color fiber and preparation method thereof
  • Structural color fiber and preparation method thereof

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preparation example Construction

[0032] The invention provides a method for preparing structural colored fibers, comprising the following steps:

[0033] mixing silica nanospheres, water, polyvinyl alcohol and graphene aqueous dispersion to obtain a spinning solution;

[0034] The spinning solution is subjected to wet spinning to obtain structurally colored fibers.

[0035] In the present invention, if there is no special requirement, the preparation raw materials used are commercially available products well known to those skilled in the art.

[0036] The invention mixes silicon dioxide nano microspheres, water, polyvinyl alcohol and graphene aqueous dispersion to obtain spinning solution. In the present invention, the average particle diameter of the silica nanospheres is preferably 230-270 nm or 300-430 nm. In a specific embodiment of the present invention, the average particle diameter of the silica nanospheres is 250 nm or 430 nm. In a specific embodiment of the present invention, when the average par...

Embodiment 1

[0063] Mix 36g of silica nanospheres with an average particle size of 250nm and 164mL of deionized water, and sonicate for 2h at a power of 30kHz to obtain a silica dispersion; add 36g of polyvinyl alcohol to the silica dispersion (PVA), heated to reflux at 70°C for 3h and then raised to 98°C for reflux for 1h to obtain a mixed solution; 1.08g graphene aqueous dispersion was added to the mixed solution while mechanically stirring to obtain a spinning solution; the graphene water The mass concentration of graphene in the dispersion is 0.05%.

[0064] Put the spinning solution into the barrel and use 98°C circulating water to keep it warm, and let it stand overnight to discharge the air bubbles in the spinning solution for use in wet spinning the next day.

[0065] Turn on the metering pump, and use the thrust of the pump to squeeze the spinning solution out of the spinneret. During the process, the temperature from the spinneret to the barrel is kept at 98°C; the spinning solut...

Embodiment 2

[0067] Mix 36g of silica nanospheres with an average particle size of 250nm and 164mL of deionized water, and sonicate for 2h at a power of 30kHz to obtain a silica dispersion; add 36g of polyvinyl alcohol to the silica dispersion (PVA), heated to reflux at 70°C for 3h and then raised to reflux at 98°C for 1h to obtain a mixed solution; 2.52g graphene aqueous dispersion was added to the mixed solution while mechanically stirring to obtain a spinning solution; the graphene water The mass concentration of graphene in the dispersion is 0.05%.

[0068] Put the spinning solution into the barrel and use 98°C circulating water to keep it warm, and let it stand overnight to discharge the air bubbles in the spinning solution for use in wet spinning the next day.

[0069] Turn on the metering pump, and use the thrust of the pump to squeeze the spinning solution out of the spinneret. During the process, the temperature from the spinneret to the barrel is kept at 98°C; the spinning soluti...

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Abstract

The invention provides a structural color fiber and a preparation method thereof, and relates to the technical field of synthetic fibers. The preparation method of the structural color fiber comprises the following steps that silicon dioxide nanoparticles, water, polyvinyl alcohol and a graphene aqueous dispersion are mixed to obtain a spinning solution; and wet spinning is carried out on the spinning solution to obtain the structural color fiber. According to the preparation method of the structural color fiber, silicon dioxide nano-microspheres are used as microspheres for generating structural colors, the silicon dioxide nano-microspheres, polyvinyl alcohol and a graphene aqueous dispersion are mixed to serve as a spinning solution, the structural color fibers are prepared by adopting a wet spinning process, the silicon dioxide nano-microspheres can be wrapped in the fibers, the microspheres are prevented from falling off, and the prepared structural color fiber is not prone to fading and long in service life.

Description

technical field [0001] The invention relates to the technical field of synthetic fibers, in particular to a structural colored fiber and a preparation method thereof. Background technique [0002] At present, the synthetic dyed fiber industry has caused serious pollution to water resources and the atmospheric environment. The emergence of structural colored fibers may become a substitute for synthetic dyed fibers. Fu Guodong and others used the vertical sedimentation method to deposit PS (polystyrene microspheres) on the surface of silk fabrics in a face-centered cubic (FCC) manner, and finally obtained fibers with structural colors (Fu Guodong, Liu Guojin, Huang Jiangfeng, etc. Silk fabrics Research on self-assembly process of photonic crystals[J]. Journal of Zhejiang Sci-tech University, 2013,30(4):467-470). Wang’s experimental group used quartz glass capillaries and polyimide outer coatings as microchannels, put silica fibers into the microcapillaries, injected 215nm and...

Claims

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Application Information

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IPC IPC(8): D01F6/50D01F1/10D01F1/04D01D5/06
CPCD01F6/50D01F1/10D01F1/04D01D5/06
Inventor 李昕杜蘅侯宇梦龚䶮关芳兰
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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