Method for making nano-grade size chitin

A manufacturing method and technology of chitin, which is applied in the field of manufacturing nano-scale chitin, can solve the problems such as the report on the manufacturing method of nano-scale chitin, and achieve the effect of excellent application characteristics

Inactive Publication Date: 2005-09-14
广汉恒宇新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, there is no report on the manufacturing method of nanoscale chitin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Prepare nanoscale chitin according to the following method

[0020] 1. Preparation of common commercially available chitin acid-dissolving-A material:

[0021] Add 40 kg of commercially available common-grade chitin flakes to 400 kg of sulfuric acid with a concentration of 65%, stir and dissolve at room temperature for 40 minutes; Add 4 kg of JFC penetrant, continue to dissolve and disperse for 40 minutes, and obtain a dissolved product with a pH value greater than 1-light brown transparent liquid;

[0022] 2. Preparation of material B (i.e. the first dispersion):

[0023] 250 kilograms of distilled water, 5 kilograms of K-2 auxiliary dispersing agent, 5 kilograms of JFC penetrating agent and 10 kilograms of absolute ethanol are placed in a kettle equipped with a backflow condenser, and are strongly stirred for 40 minutes; subsequently, 100 kilograms of 65% sulfuric acid was gradually added to the above materials, and continued to stir for 1 hour to obta...

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PUM

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Abstract

The method for making nano size chitin is characterized by that it utilizes ultrasonic technique, inversed phase microemulsion technique and sol-gel technique, etc. to synthesize chitin with nano structure. The detection by using transmission electron microscope with a magnification of 10 ten thousand times shows that said product is of network formed from sphere-like particles connected together, the size of said particle and network vein is mainly in 19-50 nm, and the size of more than 97% of particles and network vein is in 100 nm. Said product possesses good biological compatibility, network structure, microbiostatic power and stability.

Description

1. Technical field [0001] The invention relates to a method for manufacturing chitin, more particularly to a method for manufacturing nanoscale chitin. 2. Background technology [0002] Chitin is a natural organic polymer polysaccharide, which is widely distributed in the cell walls of crustaceans, insects and some microorganisms, and is very rich in resources. Because these substances have excellent biomedical properties, environmental protection and pollution control properties, ultrafiltration membrane properties, ion exchange properties, biodegradability, film-forming properties, hygroscopicity, anti-static and dust-proof and many other excellent properties, they are widely used. In the fields of biomedicine, chemical engineering, food industry, cosmetics industry, light industry, agriculture and environmental protection. With the rapid development of science and technology, the society has put forward higher requirements on the application characteristics of chitin and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/08
Inventor 龚正烈
Owner 广汉恒宇新材料有限公司
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