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

Amphoteric-cellulose-based composite material and application thereof

A technology of amphoteric cellulose and composite materials, applied in other chemical processes, immiscible liquid separation, separation methods, etc., can solve the problems of decomposition product toxicity, secondary pollution, low efficiency, etc., and achieve improved adsorption performance and good mechanical strength , the effect of large specific surface area

Inactive Publication Date: 2014-01-08
SUZHOU UNIV
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various conventional adsorbents are often difficult to achieve one-time treatment standards when treating sewage with a relatively complex system, and the efficiency is low; even though some chemically synthesized adsorbents have a good removal effect on pollutants, they are limited by the toxicity of their decomposition products. It is difficult to avoid the problem of secondary pollution

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
  • Amphoteric-cellulose-based composite material and application thereof
  • Amphoteric-cellulose-based composite material and application thereof
  • Amphoteric-cellulose-based composite material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 10g of cotton fiber, place in 400ml concentration of 2wt% sodium hydroxide solution, boil for 90min, transfer to 300ml concentration of 18wt% sodium hydroxide solution after cooling, let stand at room temperature for 120min, wash with deionized water for 5 Second, dry alkaline cotton fibers.

[0042] Take 5.0g of basic cotton fiber and place it in 300ml of acetone, add 5ml of 30wt% sodium hydroxide solution and 9g of 3-chloro-2-hydroxypropyltrimethylammonium chloride dropwise under stirring, and react in a water bath at 45°C for 3h Finally, adjust the pH value of the product to neutral with dilute hydrochloric acid, filter with suction, wash with methanol and absolute ethanol in sequence, and dry to constant weight to obtain quaternized cotton fiber.

[0043] Add 5.0g of quaternized cotton fiber and 400ml of deionized water into a three-necked flask, protect it with nitrogen, stir at 30°C for 15min, add 10g of cerium ammonium nitrate, react for 25min, and then add...

Embodiment 2

[0047] Weigh 10g of microcrystalline cellulose, place in 250ml of 0.5wt% sodium hydroxide solution, boil for 60min, transfer to 200ml of 10wt% sodium hydroxide solution after cooling, let it stand at room temperature for 120min, deionize Washed with water for 6 times and dried to obtain alkaline microcrystalline cellulose.

[0048] Take 8.0g of alkaline microcrystalline cellulose and place it in 200ml of acetone, add 8ml of 10wt% sodium hydroxide solution and 16g of 3-chloro-2-hydroxypropyltrimethylammonium chloride dropwise under stirring, and place in a water bath at 45°C After reacting for 3 hours, adjust the pH value of the product to neutral with dilute hydrochloric acid, filter with suction, wash with methanol and absolute ethanol in sequence, and dry to constant weight to obtain quaternized microcrystalline cellulose.

[0049] Add 5.0g of quaternized microcrystalline cellulose and 200ml of deionized water into a three-necked flask, protect it with nitrogen, stir at 25°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

PropertyMeasurementUnit
Saturated adsorption capacityaaaaaaaaaa
Saturated adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an amphoteric-cellulose-based composite material and application thereof. Quaternary ammonium-sulfonic acid cellulose serves as a carrier, grapheme oxide and chitosan are loaded in a blending manner, binding force among the three is utilized, and a quaternary ammonium-sulfonic acid cellulose / grapheme oxide / chitosan composite porous material is obtained through freeze drying. The quaternary ammonium-sulfonic acid cellulose / grapheme oxide / chitosan composite porous material comprises, by weight, 5-8 parts of quaternary ammonium-sulfonic acid cellulose, 0.5-3 parts of grapheme oxide and 0.5-3 parts of chitosan, is safe, non-poisonous and good in biocompatibility and degradability, has an orderly three-dimensional porous structure, good mechanical strength and efficient adsorption capability, can be used for water absorption and oil removal and processing of heavy metal ion waste water and organic waste water, and hopefully serves as a filtering material such as an air purification material and a medical adsorption material for use.

Description

technical field [0001] The invention relates to a composite material based on amphoteric cellulose and its application, in particular to a composite material based on quaternary ammonium-sulfonated cellulose and its application, and belongs to the field of functional materials. Background technique [0002] Cellulose is the most abundant natural organic renewable resource on the earth. It has the advantages of rich source, low price, non-toxic environmental protection, good biocompatibility and complete degradability, which makes it have unique advantages when used as an adsorbent carrier material. Among them, amphoteric cellulose is a kind of modified cellulose containing both cationic groups and anionic groups, which can realize the effective adsorption of negatively charged and positively charged pollutants at the same time, the efficiency is significantly improved, and its application range is wider. [0003] Graphene oxide is a single-layer carbon atom two-dimensional n...

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): C08L51/02C08L5/08C08K9/00C08K9/02C08K3/04C08F251/02C08F220/58C08B31/12B01J20/26B01J20/24B01D17/02B01D53/02C02F1/28C02F101/20C02F101/30
Inventor 陈宇岳熊佳庆林红苏公磊
Owner SUZHOU UNIV
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