Unlock instant, AI-driven research and patent intelligence for your innovation.

A thermochromic luminous fiber and its preparation method

A luminous fiber and thermochromic technology, applied in the field of materials, can solve the problems of limiting the range of luminous fiber, adjusting the luminous performance of luminous fiber, etc.

Active Publication Date: 2020-07-07
BOSIDENG DOWN WEAR
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no luminous fiber that can adjust the luminous performance by changing the environmental conditions, which limits the scope of luminous fiber in practical applications.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A thermochromic luminous fiber and its preparation method
  • A thermochromic luminous fiber and its preparation method
  • A thermochromic luminous fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Preparation of luminous powder material. Luminous powder materials that emit blue, green, and orange-red lights were synthesized by high-temperature solid-state method: Sr 1.95 ZnSi 2 o 7 :Eu 2+ 0.02 , Dy 3+ 0.03 (SZSO),Sr 0.96 al 2 o 4 :Eu 2+ 0.01 , Dy 3+ 0.02 (SAO) and Y 2 o 2 S:Eu 3+ 0.04 ,Mg 2+ 0.05 , Ti 4+ 0.05 (YOS). Specifically, SZSO and SAO are added with their metal oxides according to the molar ratio of their respective metal elements, dissolved in an aqueous ethanol solution with a volume fraction of 50%, adding boric acid (the molar ratio of boric acid to Sr is 8:100), and calcined at 1400°C After 4 hours, the luminous powder material was obtained. YOS is added with its metal oxide according to the molar ratio of metal elements, dissolved in 0.015g / mL sodium carbonate aqueous solution, and calcined at 1300°C for 3 hours to obtain a luminous powder material.

[0023] 2) Preparation of thermochromic luminous fiber. 3 g of crystal vi...

Embodiment 2

[0026] 1) Preparation of luminous powder material. The preparation method of the luminous powder material is the same as in Example 1.

[0027]2) Preparation of thermochromic luminous fiber. 3 g of crystal violet microcapsules, 6 g of YOS, 2 g of SZSO, 2 g of SAO, and 20 g of polyacrylonitrile were dissolved in 100 mL of dimethylsulfoxide solution at room temperature. Subsequently, a spinning needle with an inner diameter of 0.8mm was used for spinning at a flow rate of 6mL / min. The coagulation bath used dimethyl sulfoxide aqueous solution and deionized aqueous solution with a volume fraction of 1:1 in sequence, and the drawing speed was 1m / min. The results show that the glow-in-the-dark powder emits blue color at 0-25°C and white at 35-100°C.

Embodiment 3

[0029] 1) Preparation of luminous powder material. The preparation method of the luminous powder material is the same as in Example 1.

[0030] 2) Preparation of thermochromic luminous fiber. 3 g of crystal violet microcapsules, 5 g of YOS, 4 g of SZSO, 1 g of SAO, and 20 g of polyacrylonitrile were dissolved in 100 mL of dimethylsulfoxide solution at room temperature. Subsequently, a spinning needle with an inner diameter of 0.8 mm was used for spinning at a flow rate of 6 ml / min. The coagulation bath used 1:1 dimethyl sulfoxide aqueous solution and deionized aqueous solution in sequence, and the drafting speed was 1 m / min.

[0031] The results show that the glow-in-the-dark powder emits blue color at 0-25°C and white at 35-100°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a thermochromic luminous fiber and a preparation method thereof, and belongs to the technical field of material. With a rare earth luminous material as a raw material, and through wet spinning, the luminous fiber with thermochromic characteristics is prepared. The thermochromic luminous fiber can emit blue light in dark environment at room temperature after ultraviolet light or natural light is absorbed, can emit white light at the temperature of 40 DEG C or more, and can be widely applied in the manufacture of anti-counterfeiting and functional fibers, fabrics, textiles and clothing.

Description

technical field [0001] The invention relates to a thermochromic luminous fiber and a preparation method thereof, belonging to the field of material technology. Background technique [0002] Luminescent fibers made of rare-earth luminescent materials and fiber-forming polymers are expected to be new functional materials due to their high brightness, long afterglow time, and stability. After years of research, remarkable progress has been made in improving the light-emitting properties of these fibers. Currently, many Sr 2 ZnSi 2 o 7 :Eu 2+ 、Dy 3+ (SAO), SrAl 2 o 4 :Eu 2+ , and Y 2 o 2 S:Eu 3 + , Mg 2+ , and Ti 4+ (YOS) and other inorganic rare earth luminescent materials are used to prepare luminescent fibers that emit blue, green and red light. Polyterephthalate (PET), polypropylene (PP), cellulose, and polyacrylonitrile (PAN) are fiber-forming polymers commonly used as substrates for the preparation of luminescent fibers. Luminescent fibers for recombined li...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/54D01F1/10C09K9/00
CPCC09K9/00D01F1/10D01F6/54
Inventor 李晓强徐诚晋阳陈欣
Owner BOSIDENG DOWN WEAR