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

One-step preparation method of shrimp shells for modified chitin fiber and application of modified chitin fiber

A chitin fiber and modification technology, which is applied in the chemical characteristics of fibers, textiles and papermaking, etc., can solve the problems of poor adsorption performance of metal oxides, environmental pollution of reagents, and difficulty in decomposition, so as to increase transparent conductivity and reduce reagents. Dosage, low cost effect

Active Publication Date: 2019-10-25
ZHEJIANG OCEAN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The base of the flexible display is generally made of flexible chemical plastics. One of the problems with chemical plastics is that it is not easy to decompose and damage the environment. The other is that the material for the base of the flexible display needs to have high light transmittance, high thermal stability, and high tensile strength. , this kind of chemical plastic is often more expensive
But in this way, not only the process is complicated, but the cost is high and the reagents used will cause environmental pollution.
In addition, flexible substrate materials often need to be coated with a layer of metal oxide materials to increase the properties of the substrate such as transparent conductivity, piezoelectricity, photoelectricity, and gas sensitivity. Ordinary chitin has poor adsorption performance on metal oxides. According to this An ideal technical structure is needed to solve the above problems

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
  • One-step preparation method of shrimp shells for modified chitin fiber and application of modified chitin fiber
  • One-step preparation method of shrimp shells for modified chitin fiber and application of modified chitin fiber
  • One-step preparation method of shrimp shells for modified chitin fiber and application of modified chitin fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First dry the shells of Antarctic krill at 60°C for 24 hours, pulverize them with an ultrafine pulverizer, and squeeze them through a 1000-mesh sieve to obtain micron-sized Antarctic krill shell powder; then transfer 10g of shrimp shell powder to a 500mL sub In the aqueous solution of sodium aminodisuccinate, the concentration of the aqueous solution of sodium iminodisuccinate is 18% (w:v), add 15g of potassium persulfate and 25g of hydrogen peroxide, seal it, stir it while heating at 40°C for 2h, filter the product, The filter residue was washed with deionized water until neutral to obtain modified chitin fibers. Then, the modified chitin fiber was transferred into the acetic acid solution with pH value = 3 according to the solid-liquid ratio of 1g:50mL, ultrasonicated at 900W, 50Hz, and ice bath for 30min, and then centrifuged at 12000rpm at 4°C for 30min, and the upper supernatant; finally, the supernatant was diluted with deionized water, and the water was evaporate...

Embodiment 2

[0024] First dry 100g of Antarctic krill shells at 70°C for 18 hours, pulverize them with a superfine pulverizer, and squeeze them through a 1000-mesh sieve to obtain micron-sized Antarctic krill shell powder; then take 10g of shrimp shell powder and transfer it to a 300mL In the aqueous solution of sodium iminodisuccinate, the concentration of the aqueous solution of sodium iminodisuccinate is 10% (w:v), add 0.3g potassium persulfate and 30g hydrogen peroxide, seal it, and stir it while heating at 30°C for 3h, the product After filtering, the filter residue was washed with deionized water until neutral to obtain modified chitin fibers. Then transfer the modified chitin fiber into the acetic acid solution with pH value = 2 according to the ratio of solid to liquid: 1g:40mL, ultrasonicate at 900W, 50Hz, and ice bath for 40min, then centrifuge at 11000rpm and temperature 4°C for 60min, and take the supernatant liquid; finally, the supernatant was diluted with deionized water, an...

Embodiment 3

[0026] First dry 100g of Antarctic krill shells at 50°C for 24 hours, pulverize them with a superfine pulverizer, and squeeze them through a 1000-mesh sieve to obtain micron-sized Antarctic krill shell powder; In the aqueous solution of sodium iminodisuccinate, the concentration of the aqueous solution of sodium iminodisuccinate is 25% (w:v), add 40g of potassium persulfate and 0.4g of hydrogen peroxide, seal it, and stir it while heating at 45°C for 0.5h. The product is filtered, and the filter residue is washed with deionized water until neutral to obtain modified chitin fibers. Then transfer the modified chitin fiber into the acetic acid solution with pH=4 according to the solid-liquid ratio of 1g:60mL, ultrasonicate at 900W, 50Hz, and ice bath for 30min, then centrifuge at 10000rpm and temperature 4°C for 50min, and take the supernatant liquid; finally, the supernatant was diluted with deionized water, and the water was evaporated to dryness in an oil bath at 110°C to obta...

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 relates to a modification method and application of a chitin fiber. Aiming at the problem that common chitin is poor in adsorption performance upon metal oxides, the invention provides aone-step preparation method of shrimp shells for a modified chitin fiber and application of the modified chitin fiber. The method comprises the following steps: firstly, performing drying, crushing and screening on shrimp shells so as to obtain shrimp shell powder; and secondly, adding a sodium iminodisuccinate water solution, potassium persulfate and hydrogen peroxide into the shrimp shell powder so as to obtain the modified chitin fiber. By adopting the method, the modified chitin fiber is prepared from the shrimp shells at one step directly without acid, alkali or ethanol treatment, the process is simple, and the amount of reagents can be reduced. The product is applied to preparation of a flexible material, namely firstly, the modified chitin fiber is subjected to ultrasonic treatmentwith an acetic acid solution and is further centrifuged, and supernate is collected; and the supernate is diluted with deionized water, moisture is evaporated off, and thus the flexible material is prepared. After being modified, chitin has an improved adsorption capability upon metal oxides, a metal oxide layer can be well coated by the flexible material, and thus properties such as the transparency conductivity, the piezoelectricity, the photoelectricity and the gas sensitivity of a substrate can be improved.

Description

technical field [0001] The invention relates to a modification method of chitin fiber and its application, in particular to a one-step preparation method of modified chitin fiber for shrimp shells and its application. Background technique [0002] The flexible display screen is light and thin, and can be bent and has good flexibility, so it has a good development prospect. The base of the flexible display is generally made of flexible chemical plastics. One of the problems with chemical plastics is that it is not easy to decompose and damage the environment. The other is that the material for the base of the flexible display needs to have high light transmittance, high thermal stability, and high tensile strength. , This kind of chemical plastic is often more expensive. Chitin is a natural polymer that is second only to cellulose in nature, and is widely found in natural resources such as crustaceans, fungi, insects, and molluscs. Chitin has good biocompatibility and biode...

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
IPC IPC(8): C08B37/08D01F9/00
CPCC08B37/003D01F9/00
Inventor 葛亚明刘俊稚杨家顺韩厚峰赵学芳
Owner ZHEJIANG OCEAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com