Preparatino method of low-molecular chitosar quaternary ammonium salt complex iodine clear venom

A low-molecular-weight chitosan and quaternary ammonium salt technology, applied in botany equipment and methods, animal repellents, biocides, etc., can solve problems such as adverse environmental effects, difficult biodegradation, and large molecular weight, and achieve natural degradation Fast speed, good antibacterial effect, strong bactericidal effect

Inactive Publication Date: 2005-11-09
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, povidone has a small solubility to iodine and a large molecular weight (up to 70,000), which is difficult to be biodegraded, and long-term use will have adverse effects on the environment.

Method used

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  • Preparatino method of low-molecular chitosar quaternary ammonium salt complex iodine clear venom
  • Preparatino method of low-molecular chitosar quaternary ammonium salt complex iodine clear venom
  • Preparatino method of low-molecular chitosar quaternary ammonium salt complex iodine clear venom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Take 0.5g of low-molecular weight chitosan hydroxypropyltrimethylammonium chloride with a weight average molecular weight of 8550, dissolve it in 78mL of water (if there is a small amount of insoluble matter, it can be filtered through a 300 mesh sieve), and add 4.6 g didodecyl diquaternary ammonium salt, 8.4g bis-octyl / decyl dimethyl ammonium chloride, 7.5g dodecyl benzyl ammonium chloride, mix well, heat the mixture to 60°C, add 0.95g elemental iodine and 0.05g potassium iodate, heat preservation reaction 3.0h, be cooled to room temperature, the dark brown liquid that obtains is the disinfectant of the present invention.

Embodiment 2

[0011] Get 1.0g of low-molecular weight N-dodecyl-N with a weight-average molecular weight of 5300, N-dimethyl chitosan quaternary ammonium salt, dissolve with 88mL water (if there is a small amount of insoluble matter, it can be filtered through a 300-mesh sieve) Over), add 10.5g didodecyl dimethyl ammonium chloride under stirring condition and mix evenly, raise the temperature of this mixed solution to 65°C, add 0.45g elemental iodine and 0.05g potassium iodate, keep warm for 1.5h, Cool to room temperature and serve.

Embodiment 3

[0013] Take 0.2g of low-molecular chitosan hydroxypropyltrimethylammonium chloride with a weight-average molecular weight of 6150, dissolve it in 76mL of water (if there is a small amount of insoluble matter, it can be filtered through a 300-mesh sieve), and add 3.5 g dihexadecyl diquaternary ammonium salt, 12.5g bis-octyl / decyl dimethyl ammonium chloride, and 6.0g polyoxyethylene nonylphenol are mixed evenly, and the mixture is heated to 60°C, and 1.5g elemental substance is added Iodine, insulation reaction 3.0h, cooled to room temperature.

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PUM

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Abstract

The invention is a preparing method of the low-molecular chitosan quaternary-ammonium-salt complex iodine sterilizing solution, its character: mixing and agitating the low-molecular chitosan quaternary-ammonium-salt or low-molecular chitosan solution with one, two or all of dialkyl diquaterary ammonium salt, dialkyl quaterary ammonium salt, and methyl quaterary ammonium salt, then heating the mixed solution, adding with iodine, or iodine and iodate, preserving heat to react, and cooling to room temperature. It is an environmental-protection, strong-efficiency disinfectant, irritation and the toxicity lower, and the sterilizing effect more stable and permanent.

Description

technical field [0001] The invention relates to a disinfectant, in particular to a preparation method of a low-molecular-weight chitosan quaternary ammonium salt complexed iodine disinfectant. Background technique [0002] The quaternary ammonium compound is a kind of cationic surfactant, which is positively charged in water, and can be adsorbed on the surface of microorganisms to form micelles, and gradually penetrate into the lipid layer and protein layer of the cytoplasm, thereby changing the permeability of the cell membrane and making it Leakage of cell contents leads to the death of microorganisms; at the same time, it can also denature the structure of proteins and enzymes, destroy the metabolism of microorganisms, and kill microorganisms. Therefore, quaternary ammonium compounds are widely used as disinfectants. There are two types of quaternary ammonium salt disinfectants: mono-alkyl quaternary ammonium salt and di-alkyl quaternary ammonium salt. The former is repr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01N59/12
Inventor 赵峡于广利
Owner OCEAN UNIV OF CHINA
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