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Colored photocatalysis fibers and preparation method thereof

A colored fiber, colored light technology, applied in the field of photocatalytic materials, can solve the problem of single color of catalytic functional textiles

Inactive Publication Date: 2018-11-16
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The colored photocatalytic fiber provided by the invention has excellent photocatalytic degradation performance, and at the same time solves the problem of single color of catalytic functional textiles

Method used

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  • Colored photocatalysis fibers and preparation method thereof
  • Colored photocatalysis fibers and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0021] The invention provides a method for preparing colored photocatalytic fibers, comprising the following steps:

[0022] Mix the polyester polymer, color masterbatch and composite photocatalyst evenly for spinning to obtain colored fiber precursors;

[0023] The composite photocatalyst inside the colored fiber precursor is exposed to obtain the colored photocatalytic fiber.

[0024] In the invention, the polyester polymer, color masterbatch and composite photocatalyst are uniformly mixed and spun to obtain colored fiber precursors. In the present invention, the polyester polymer is preferably polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylene naphthalate , polybutylene succinate, polylactic acid, polyester elastomer and polyglycolide, a mixture of one or more substances or a copolymer of several substances, more preferably one, two, three Mixtures of one, four, five, six, seven or eight substances or copolymers of one, two, ...

Embodiment 1

[0086] Take by weighing 82 parts of polyethylene terephthalate, 3 parts of yellow masterbatch and 15 parts of composite photocatalyst (85% TiO 2 with 15% g-C 3 N 4 ), the three are mixed evenly and melt-spun to obtain colored fiber precursors, the diameter of the colored fiber precursors is 20 μm.

[0087] Then take 100 parts of colored fiber precursors and join in the alkali reduction treatment solution to process 60min, the bath ratio of the alkali reduction treatment is 1:50, and the concentration of sodium hydroxide in the alkali reduction treatment solution is 5g / L, the concentration of the accelerator cetyltrimethylammonium bromide is 0.4g / L, and the water temperature is 80°C. Then it was washed with water until it became neutral, and placed in an oven at 60°C to dry flatly to obtain colored photocatalytic fibers. Weigh its quality, calculate its alkali reduction rate of 15%.

[0088] Add 40mg of the colored photocatalytic fiber obtained in this example to 30mL with...

Embodiment 2

[0090] Take by weighing 87 parts of polytrimethylene terephthalate, 5 parts of blue masterbatch and 8 parts of composite photocatalyst (88% TiO 2 , 10% g-C 3 N 4 and 2% graphene), the three are mixed evenly, and melt-spun to obtain a colored fiber precursor, and the diameter of the colored fiber precursor is 24 μm.

[0091] Then take 100 parts of colored fiber precursors and join in the alkali reduction treatment solution to process 70min, the bath ratio of the alkali reduction treatment is 1:50, and the concentration of sodium hydroxide in the alkali reduction treatment solution is 10g / L, the concentration of the accelerator octadecyl dimethyl hydroxyethyl ammonium nitrate is 0.4g / L, and the water temperature is 80°C. Then it was washed with water until it became neutral, and placed in an oven at 60°C to dry flatly to obtain colored photocatalytic fibers. Weigh its quality and calculate its alkali reduction rate of 20%.

[0092] The present invention detects the colored ...

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Abstract

The invention provides colored photocatalysis fibers and a preparation method thereof. According to the invention, a polyester polymer and a composite photocatalyst are used as raw materials, and after the raw materials are spun into colored fiber protofilaments, the composite photocatalyst in the protofilaments is exposed by naking processing, so that the obtained colored photocatalysis fibers have the photocatalytic activity. Moreover, according to the invention, by adding a color master batch, when the colored photocatalysis fibers are guaranteed to have excellent photocatalytic degradationperformance, a problem of a single color of a catalytic functional textile is solved. An experiment result shows that the colored photocatalysis fibers provided by the invention have a very high degradation rate for methylene blue, and can enable the degradation rate for the methylene blue to reach 90% or higher within 140min.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a colored photocatalytic fiber and a preparation method thereof. Background technique [0002] Photocatalytic fiber is a kind of photocatalytic material. In the prior art, two methods of post-finishing and spinning are generally used to combine photocatalyst (such as nano-titanium dioxide) with fiber to prepare environmental purification textiles. The post-finishing method needs to impregnate or coat the formed fabric to make it have photocatalytic properties; while the spinning method directly mixes the photocatalyst with the spinning solution, and then prepares it through the spinning process to have a catalytic function. of textiles. [0003] Although the application of photocatalytic technology in textiles has been developed, the photocatalytic textiles provided by the prior art generally have the problems of poor photocatalytic degradation effect and single...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01F11/08
CPCD01F1/10D01F6/92D01F11/08
Inventor 吕汪洋顾艳陈文兴
Owner ZHEJIANG SCI-TECH UNIV
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