Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of modified collagen fiber material capable of efficiently capturing iodine vapor

A technology of collagen fibers and fibrils, which is applied in the field of preparation of modified collagen fibers to efficiently capture iodine vapor materials, which can solve the problems of low recycling rate, difficult post-processing, complicated preparation process, etc.

Active Publication Date: 2020-10-30
SOUTHWEAT UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the adsorption materials for radioactive gaseous iodine mainly include zeolite, activated carbon, COFS, MOFS, etc., which have large specific surface area and microporous structure, and have a strong adsorption effect on gaseous iodine. Due to factors such as low utilization rate, difficult post-processing, and high practical application costs, it is urgent to find an alternative adsorption material.

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
  • Preparation method of modified collagen fiber material capable of efficiently capturing iodine vapor
  • Preparation method of modified collagen fiber material capable of efficiently capturing iodine vapor
  • Preparation method of modified collagen fiber material capable of efficiently capturing iodine vapor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for preparing a material for efficiently capturing iodine vapor by modified collagen fibers, comprising the following steps:

[0044] Step 1. After cleaning, alkali treatment, dehydration and other treatments according to conventional methods, the untanned animal skins are pulverized by a pulverizer to obtain granular collagen fibers with a particle size of 50 mesh, added to deionized water, and cleaned in an ultrasonic cleaning machine. Ultrasonic cleaning for 5 hours, washing to neutrality, drying in an oven after filtration; wherein the ultrasonic cleaning temperature and oven temperature are controlled at 40°C;

[0045] Step 2, pulverize the cleaned collagen fibers in a pulverizer, and the particle size is 40 mesh; get 10g of collagen fibers and 5g of sodium hydroxide solid alkali modifier to grind and mix evenly, and put them in a tube furnace where the ambient gas is nitrogen. Calcined at 150°C for 2h, then cooled to room temperature;

[0046]Step 3: Rin...

Embodiment 2

[0048] A method for preparing a material for efficiently capturing iodine vapor by modified collagen fibers, comprising the following steps:

[0049] Step 1. After cleaning, alkali treatment, dehydration and other treatments according to conventional methods, the untanned animal skins are pulverized by a pulverizer to obtain granular collagen fibers with a particle size of 50 mesh, added to deionized water, and cleaned in an ultrasonic cleaning machine. Ultrasonic cleaning for 5 hours, washing to neutrality, drying in an oven after filtration; the ultrasonic cleaning temperature and oven temperature are controlled at 45°C;

[0050] Step 2, pulverize the cleaned collagen fiber in a pulverizer, the particle size is 60 mesh; get 10g collagen fiber and 5g potassium hydroxide solid alkali modifier to grind and mix evenly, and place in a tube furnace where the ambient gas is nitrogen. Calcined at 180°C for 5h, then cooled to room temperature;

[0051] Step 3. Rinse the calcined mat...

Embodiment 3

[0053] A method for preparing a material for efficiently capturing iodine vapor by modified collagen fibers, comprising the following steps:

[0054] Step 1. After cleaning, alkali treatment, dehydration and other treatments according to the conventional method, the untanned animal skin is pulverized by a pulverizer to obtain granular collagen fibers with a particle size of 60 mesh, added to deionized water, and cleaned in an ultrasonic cleaner. Ultrasonic cleaning for 5 hours, washing to neutrality, drying in an oven after filtration; wherein the ultrasonic cleaning temperature and oven temperature are controlled at 50°C;

[0055] Step 2, pulverize the cleaned collagen fiber in a pulverizer, the particle size is 80 mesh; take 10g of collagen fiber and 10g of potassium hydroxide and sodium hydroxide and mix (weight ratio 1:1) Solid alkali modifier grinds and mixes evenly , calcined at 220°C for 5h in a tube furnace with nitrogen as the ambient gas, and cooled to room temperatu...

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

PropertyMeasurementUnit
particle size (mesh)aaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a modified collagen fiber material capable of efficiently capturing iodine vapor. The preparation method comprises the following steps: 1, adding collagen fibers into deionized water, carrying out ultrasonic cleaning in an ultrasonic cleaning machine for 5 hours until the collagen fibers are neutral, filtering the collagen fibers, and drying the collagen fibers in a drying oven; 2, crushing the cleaned collagen fibers in a crusher, uniformly mixing the crushed collagen fibers and an alkali modifier in proportion, conducting calcining in a tubularfurnace at a certain temperature for a period of time, and carrying out cooling to room temperature; and 3, washing a calcined material with deionized water until the material is neutral, carrying out filtering, and then carrying out drying in a drying oven to obtain the modified collagen fiber material. The modified collagen fibers are not easy to absorb water and agglomerate, large in specificsurface area, high in iodine vapor adsorption capacity which is far higher than the iodine vapor adsorption capacity of other types of biomass materials, and high in heavy rate utilization rate of adsorption materials. The preparation method is simple and environmentally friendly, and secondary pollution to the environment in the preparation process is avoided.

Description

technical field [0001] The invention belongs to the field of environmental protection in which biomass waste resources are used for adsorption of radioactive iodine vapor in the environment, and specifically relates to a preparation method of a material for efficiently capturing iodine vapor by modified collagen fibers. Background technique [0002] The tanning industry is rising day by day in today's society, but the utilization rate of the raw material animal skin is only about 60%, and a large amount of leather waste is produced every year, especially the waste with small particle size is difficult to reuse, resulting in the waste of raw material resources, and at the same time The environment is seriously polluted. How to realize the reuse of leather waste resources has always been a hot issue for researchers. Studies have shown that leather waste can be transformed into collagen fibers with strong hydrophilicity after cleaning, alkali treatment, dehydration and other t...

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 Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J13/00B01D53/02B01J20/30
CPCB01J13/0091B01J20/24B01J20/28023B01J20/28047B01D53/02
Inventor 周建朱辉
Owner SOUTHWEAT UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com