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Macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive and preparation method thereof

An antibacterial and antifungal agent, antibacterial and antifungal technology, applied in botanical equipment and methods, biocides, chemicals for biological control, etc. Lack of effective means to achieve less irritating effects

Inactive Publication Date: 2013-09-18
CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary bacteriostatic agents have very weak killing and inhibiting effects on this type of mold, and there is still no effective means for the durable anti-mildew of leather products.

Method used

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  • Macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive and preparation method thereof
  • Macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive and preparation method thereof
  • Macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 1 part of macromolecular organic biguanide salt with a viscosity average molecular weight of 1000 to 3 parts of tetrahydrofuran, stir and dissolve at 35-45°C for 30-60 minutes; after the macromolecular organic biguanide salt is completely dissolved, add 0.5 part of organosilane 3 -Aminopropyltrimethoxysilane was dissolved in 3 parts of tetrahydrofuran and added to the reactor at one time, the temperature was raised to 60-65°C, and the reaction was stirred for 3-8 hours; the reaction was stopped, and the system was evaporated to remove tetrahydrofuran under reduced pressure; the obtained The creamy or soapy solid is the product.

Embodiment 2

[0036] Add 3 parts of macromolecular organic biguanide salt with a viscosity average molecular weight of 3000 to 8 parts of tetrahydrofuran, stir and dissolve at 35-45°C for 30-60 minutes; after the macromolecular organic biguanide salt is completely dissolved, add 3 parts of organosilane 3 -Aminopropyltriethoxysilane is dissolved in 5 parts of methanol and added to the reactor at one time, the temperature is raised to 60-65 ° C, and the reaction is stirred for 3-8 hours; the reaction is stopped, and the system is evaporated under reduced pressure to remove tetrahydrofuran And methanol; the resulting creamy or soapy solid is the product.

Embodiment 3

[0038] Add 5 parts of macromolecular organic biguanide salt with a viscosity average molecular weight of 4000 to 10 parts of ethanol, stir and dissolve at 35-50°C for 30-60 minutes; after the macromolecular organic biguanide salt is completely dissolved, add 10 parts of organosilane 3 - Glycidyl etheroxypropyl trimethoxysilane was dissolved in 5 parts of ethanol and added to the reactor at one time, the temperature was raised to 75-78°C, and the reaction was stirred for 3-8 hours; the reaction was stopped, and the system was evaporated under reduced pressure Remove ethanol; the resulting paste or soap-like solid is the product.

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PUM

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Abstract

The invention discloses a macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive and a preparation method thereof. The macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive comprises 1-5 parts of macromolecular organic biguanide hydrochloride and 0.5-8 parts of organosilane. The macromolecular organic biguanide hydrochloride is modified by a silicon-containing organic functional compound by a solution reaction mode; and a prepared macromolecular organic guazatine and organic silicon derivative is high in antimicrobial mildew prevention property. The macromolecular organic guazatine and organic silicon derivative leather antimicrobial mildew preventive disclosed by the invention can be used as an antimicrobial deodorization finishing agent and an antimicrobial mildew preventive for various textiles and leather products.

Description

technical field [0001] The invention belongs to the technical field of macromolecular organic biguanide salt derivative leather antibacterial and antifungal agents and preparation thereof, and specifically relates to a silicon-containing organosilicon modified macromolecular organic biguanide salt derivative leather antibacterial and antifungal agent and a preparation method thereof. Background technique [0002] Leather is a processed product of natural polymer compounds (collagen), which is rich in nutrients and suitable for the growth of microorganisms; the natural oil fatliquor added during the processing of leather products also facilitates the reproduction of microorganisms condition. In addition, the porosity and polar structure of leather make it easy to absorb moisture, and the leather is acidic. These reasons constitute the basic conditions for leather moldy. Moldy leather products will have white, yellow, blue and black colonies or stains. At the same time, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N55/10A01P1/00A01P3/00C07F7/18C08G73/00
Inventor 刘白玲江正武王斌赵春霞彭钢陈华林罗荣
Owner CHENGDU ORGANIC CHEM CO LTD CHINESE ACAD OF SCI
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