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A kind of rosin quaternary ammonium salt antibacterial coating compound based on modified non-woven fabric, its preparation method and application

A quaternary ammonium compound and antibacterial coating technology, applied in the field of new fungicides, can solve the problems of slowing down wound healing, increasing the pain of patients, increasing medical costs, etc. The effect of improved thermal stability

Active Publication Date: 2022-05-27
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a warm and humid wound healing environment can also promote microbial growth, which can cause wound infection, slow wound healing, increase medical costs, and increase patient suffering

Method used

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  • A kind of rosin quaternary ammonium salt antibacterial coating compound based on modified non-woven fabric, its preparation method and application
  • A kind of rosin quaternary ammonium salt antibacterial coating compound based on modified non-woven fabric, its preparation method and application
  • A kind of rosin quaternary ammonium salt antibacterial coating compound based on modified non-woven fabric, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 50g of rosin (first-class rosin, Jiangxi Huajin New Materials Co., Ltd.) and 14g of maleic anhydride and pour it into a 500mL four-necked flask, add 200mL of acetic acid and 0.126g of p-toluenesulfonic acid as a catalyst, and heat to 120 ℃ condensed and refluxed, stirred to make it fully react, and after 10 hours of reaction, filtered to obtain the maleopimaric acid compound. Then 50 g of maleopimaric acid and 800 mL of ethanol were added to a 1000 mL four-necked flask, heated to 85°C for condensation and reflux, and 12 mL of N,N-dimethylethylenediamine was added dropwise. After filtration, a rosin-based tertiary amine compound was obtained. Then, 20 g of rosin-based tertiary amine compound, 80 mL of bromoethane and 500 mL of tetrahydrofuran were added to a 1000 mL one-neck flask, heated to 65°C to condense under reflux, stirred to fully react, and after 36 hours of reaction, the product was filtered to obtain a rosin quaternary ammonium salt compound. 5g of rosi...

Embodiment 2

[0037] Refer to Example 1 for the preparation of the maleopimaric acid compound. 20 g of maleopimaric acid and 500 mL of ethanol were added to a 1000 mL four-necked flask, heated to 80°C for condensation and reflux, and 8 mL of N,N-dimethylethylenediamine was added dropwise. After filtration, a rosin-based tertiary amine compound was obtained. Then add 25 g of rosin-based tertiary amine compound, 100 mL of bromoethane and 400 mL of tetrahydrofuran into a 1000 mL one-necked flask, heat to 55° C. to condense and reflux, stir to fully react, and after 24 hours of reaction, the product is filtered to obtain a rosin quaternary ammonium salt compound. 3g of rosin quaternary ammonium salt compound, 1.3g of 3-glycidyloxypropyltriethoxysilane, 0.007g of benzyltriethylammonium chloride and 80mL of ethanol were added to a 250mL single-neck flask, and the reaction was carried out at 80°C for 6h. After the reaction is completed, the solvent is removed by rotary evaporation to obtain a ros...

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Abstract

The invention discloses a rosin quaternary ammonium salt antibacterial coating compound based on a modified non-woven fabric, its preparation method and application. The rosin quaternary ammonium salt antibacterial coating compound has the following structural formula: The coating compound has broad-spectrum and high-efficiency bactericidal properties, and is a novel rosin quaternary ammonium salt antibacterial coating compound; the preparation method of the rosin quaternary ammonium salt antibacterial coating compound adopts natural biomass resource rosin as raw material, after adding synthesis, amidation and other methods, the synthesis process is simple, the source of raw materials is green, and it also provides a new way for the high-value utilization of rosin resources; using ethanol as a solvent, the compound can be chemically grafted on the surface of non-woven fabrics efficiently, The antibacterial properties, mechanical properties and thermal stability of non-woven fabrics have been significantly improved.

Description

technical field [0001] The invention relates to a modified non-woven fabric-based rosin quaternary ammonium salt antibacterial coating compound, a preparation method and application thereof, and belongs to the field of novel fungicides. Background technique [0002] The skin, the largest organ in the human body, acts as a natural barrier and plays an important role in defending against environmental intrusions, but is vulnerable to damage from exogenous factors such as burns, trauma, or other external dangers. When the skin is injured, the wound must be covered with a dressing to prevent bacterial infection of the wound and loss of tissue fluid to promote wound healing. Non-woven fabrics have been widely used as wound dressings, and there are a large number of hydrophilic functional groups in cotton fiber molecules, which have excellent moisture management properties and can meet the moist environment required for wound healing. However, warm and moist wound-healing environ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/18D06M13/513D06M15/17
CPCC07F7/1804C07F7/1892D06M13/5135D06M16/00D06M15/17
Inventor 刘鹤李兆双杨欣欣王诗博宋湛谦商士斌
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY