Magnetic amphoteric cellulose powder material, preparation method and applications

An amphoteric cellulose, powder material technology, applied in chemical instruments and methods, other chemical processes, etc., to achieve the effect of strong practicability, high surface activity, and high potential added value

Active Publication Date: 2015-03-25
HAIMEN ZHUOWEI TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above inventions only involve the use of microcrystalline cellulose to achieve medical applications, but how to endow cellulose with high specific surface area, high loading c

Method used

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  • Magnetic amphoteric cellulose powder material, preparation method and applications
  • Magnetic amphoteric cellulose powder material, preparation method and applications
  • Magnetic amphoteric cellulose powder material, preparation method and applications

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Weigh 12 g of microcrystalline cellulose, place it in 150 ml of 0.5 wt % sodium hydroxide solution, boil for 40 min, wash with deionized water 4 times, and dry to obtain alkaline microcrystalline cellulose. Take 10g of alkaline microcrystalline cellulose and place it in 120ml of ethanol, add 8ml of 10wt% sodium hydroxide solution and 16g of 3-chloro-2-hydroxypropyltrimethylammonium chloride dropwise under stirring, and react in a water bath at 45°C After 3 hours, the pH value of the product was adjusted to neutral with dilute hydrochloric acid, filtered with suction, washed with methanol and absolute ethanol in sequence, and dried in vacuum to constant weight to obtain quaternized microcrystalline cellulose. Add 8.0g of quaternized microcrystalline cellulose and 150ml of deionized water into a three-necked flask, protect it with nitrogen, stir at 25°C for 10min, add 9g of cerium ammonium nitrate, react for 20min, and then add 2-acrylamide-2-methyl Propanesulfonic acid 1...

Embodiment 2

[0052] Weigh 8 g of microcrystalline cellulose, place it in 120 ml of 0.2 wt % sodium hydroxide solution, boil for 60 min, wash with deionized water 4 times, and dry to obtain alkaline microcrystalline cellulose. Take 6g of basic microcrystalline cellulose and place it in 10ml of acetone, add 5ml of 12wt% sodium hydroxide solution and 12g of 3-chloro-2-hydroxypropyltrimethylammonium chloride dropwise under stirring, and react in a water bath at 45°C After 3 hours, the pH value of the product was adjusted to neutral with dilute hydrochloric acid, filtered with suction, washed with methanol and absolute ethanol in sequence, and dried in vacuum to constant weight to obtain quaternized microcrystalline cellulose. Add 6g of quaternized microcrystalline cellulose and 150ml of deionized water into a three-necked flask, protect it with nitrogen, stir at 25°C for 10min, add 8g of cerium ammonium nitrate, react for 20min, and then add 2-acrylamide-2-methylpropane 12g of sulfonic acid, a...

Embodiment 3

[0055] Weigh 10 g of microcrystalline cellulose, place it in 100 ml of 0.4 wt % sodium hydroxide solution, boil for 60 min, wash with deionized water 4 times, and dry to obtain alkaline microcrystalline cellulose. Take 5g of alkaline microcrystalline cellulose and place it in 10ml of ethanol, add 4.5ml of 18wt% sodium hydroxide solution and 10g 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 in vacuum to constant weight to obtain quaternized microcrystalline cellulose. Add 4g of quaternized microcrystalline cellulose and 120ml of deionized water into a three-necked flask, protect it with nitrogen, stir at 25°C for 10min, add 6g of cerium ammonium nitrate, react for 20min, and then add 2-acrylamide-2-methylpropane 10g of sulfonic ...

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Abstract

The invention discloses a magnetic amphoteric cellulose powder material, a preparation method and applications. The preparation method comprises the following steps: by taking amphoteric microcrystalline cellulose as a carrier, generating ferroferric oxide magnetic nanoparticles through in-situ co-precipitation, and adhering on the surface of the amphoteric microcrystalline cellulose and in pore ducts in situ, to realize the superpara magnetism function of the amphoteric microcrystalline cellulose, wherein the prepared amphoteric microcrystalline cellulose has intelligent response characteristic to an additional magnetic field. Through the amphoteric characteristic, high hydrophility and high specific area, the magnetic amphoteric cellulose powder material can be used for adsorbing waste water as a high-efficiency adsorption material, especially has the capability of obviously removing heavy metal ions and organic pollutants, can be easily separated and recovered under the additional magnetic field, and is economic and practical. In addition, due to the biocompatibility, biodegradability, favorable affinity and superpara magnetism characteristics, the magnetic amphoteric cellulose powder material can be used as a target drug carrier material, a target functional timbering material, a target vascular blocking material, a target medical adsorption material and the like, and the intelligent guide control can be easily realized through the additional magnetic field.

Description

technical field [0001] The invention relates to a recyclable cellulose powder material that can be used to remove heavy metal ions and organic pollutants and a preparation method thereof, in particular to a magnetic amphoteric microcrystalline cellulose powder and a preparation method thereof, belonging to the field of advanced functional materials. Background technique [0002] Cellulose is the most abundant renewable resource in nature, with an annual global output of hundreds of billions of tons. It is an incomparable major renewable resource such as petroleum. As a biodegradable natural polymer material, the degradation and deep processing of cellulose to obtain chemical raw materials and intermediates has always been a research hotspot in various countries. Microcrystalline cellulose (MCC) is a linear polysaccharide combined with β-1,4-glucoside. It is the product of natural cellulose hydrolyzed by dilute acid to the limit degree of polymerization. It is in the form of ...

Claims

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Application Information

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IPC IPC(8): C08L51/02C08L1/28C08K3/22C08F251/02C08F220/58C08B11/145B01J20/26B01J20/24B01J20/30
Inventor 熊佳庆陈宇岳林红郭坤
Owner HAIMEN ZHUOWEI TEXTILE CO LTD
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