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Preparation method of spectrum blue shift noctilucent fiber

A luminous fiber and blue-shifting technology, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, and single-component polyester rayon, can solve problems such as monotonous luminous color, achieve good washing resistance, and expand the application field.

Pending Publication Date: 2021-06-11
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the wavelength of its emitted light is between 520 and 540nm, and its spectrum is distributed in the yellow-green light region. The monotonous emission color has become a major problem in application.

Method used

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  • Preparation method of spectrum blue shift noctilucent fiber
  • Preparation method of spectrum blue shift noctilucent fiber
  • Preparation method of spectrum blue shift noctilucent fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment discloses a preparation method of a luminous fiber with a blue-shifted spectrum, comprising the following steps:

[0022] (1) Activation treatment: SrAl 2 o 4 : Eu 2+ , Dy 3+ The luminescent powder and the luminescence enhancer are mixed according to the weight ratio of 0.5:1, and the composite powder is obtained after baking in a microwave calciner, and then the relative SrAl 2 o 4 : Eu 2+ , Dy 3+ 5% of the coupling agent by weight of the luminescent powder is used to activate the composite powder to obtain activated SrAl 2 o 4 : Eu 2+ , Dy 3+ glow powder.

[0023] Specifically, the baking temperature in the microwave calciner is 300° C., and the baking time is 1 h. The luminescence enhancer is rice husk carbon powder, and the particle size of the luminescence enhancer is 50nm. The coupling agent is silane coupling agent KH550.

[0024] (2) Preparation of luminescent composite masterbatch: 10 parts by weight of PET polyester chips, 1 part b...

Embodiment 2

[0029] This embodiment discloses a preparation method of a luminous fiber with a blue-shifted spectrum, comprising the following steps:

[0030] (1) Activation treatment: SrAl 2 o 4 : Eu 2+ , Dy 3+ The luminescent powder and the luminescence enhancer are mixed according to the weight ratio of 3:1, and the composite powder is obtained after baking in a microwave calciner, and then the relative SrAl 2 o 4 : Eu 2+ , Dy 3+ 10% of the coupling agent by weight of the luminescent powder is used to activate the composite powder to obtain activated SrAl 2 o 4 : Eu 2+ , Dy 3+ glow powder.

[0031] Specifically, the baking temperature in the microwave calciner is 400° C., and the baking time is 2 hours. The luminescence enhancer is volcanic powder, and the particle size of the luminescence enhancer is 500nm. The coupling agent is silane coupling agent KH560.

[0032] (2) Preparation of luminescent composite masterbatch: 50 parts by weight of PET polyester chips, 10 parts by ...

Embodiment 3

[0037] This embodiment discloses a preparation method of a luminous fiber with a blue-shifted spectrum, comprising the following steps:

[0038] (1) Activation treatment: SrAl 2 o 4 : Eu 2+ , Dy 3+ The luminescent powder and the luminescent enhancer are mixed according to the weight ratio of 5:1, and the composite powder is obtained after baking in a microwave calciner, and then the relative SrAl 2 o 4 : Eu 2+ , Dy 3+ 20% of the coupling agent by weight of the luminescent powder is used to activate the composite powder to obtain activated SrAl 2 o 4 : Eu 2+ , Dy 3+ glow powder.

[0039]Specifically, the baking temperature in the microwave calciner is 500° C., and the baking time is 3 hours. The luminescence enhancer is coconut shell carbon powder, and the particle size of the luminescence enhancer is 1000nm. The coupling agent is silane coupling agent KH570.

[0040] (2) Preparation of luminescent composite masterbatch: 90 parts by weight of PET polyester chips, 2...

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Abstract

The invention provides a preparation method of spectrum blue shift noctilucent fiber. The preparation method comprises the following steps of (1) activating treatment: mixing SrAl2O4: Eu <2+>, Dy <3+> luminescent powder and a luminescent enhancer according to a weight ratio of (0.5-5): 1, baking in a microwave calcining furnace to obtain composite powder, and activating the composite powder by using a coupling agent; (2) preparation of luminescent composite master batch: mixing 10-90 parts by weight of PET polyester chips, 1-20 parts by weight of photosensitive color-changing powder, 1-30 parts by weight of activated SrAl2O4: Eu <2+>, Dy <3+> luminescent powder and 0.5-1.5 parts by weight of a functional auxiliary agent, and granulating by using a twin-screw granulator; and (3) preparing the luminous composite fiber. The luminous composite fiber obtained through the method has a double-emission spectrum phenomenon which is located at the positions of 425 nm and 520 nm respectively, the wavelength is located in a blue region of about 480 nm after double spectrums are overlapped, the luminous fiber with spectrum blue shift is obtained, and in addition, the luminous composite fiber is relatively good in water washing resistance, and the afterglow brightness of the luminous composite fiber after water washing is slightly reduced.

Description

technical field [0001] The invention relates to the technical field of manufacturing functional textile materials, in particular to a method for preparing a luminous fiber with a blue-shifted spectrum. Background technique [0002] With the continuous change of market demand and people's consumption level, the original single-performance fiber raw materials can no longer meet people's growing individualized and diversified needs. Therefore, in order to solve the problem of technical innovation of luminescent functional fibers in the development of my country's textile industry, it is necessary to continuously try to innovate in the aspect of fiber preparation raw materials, to modify the functions of natural fibers or chemical fibers through process treatment or adding functional additives, and to actively develop new technologies Products, increase the development of high-performance, functional and differentiated fibers, expand their application in key fields such as functi...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10
CPCD01F6/92D01F1/10
Inventor 李婧
Owner NINGBO UNIV
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