Method for preparing copper oxide/cuprous oxide-based antibacterial material through in situ polymerization

A cuprous oxide, in-situ polymerization technology, applied in rayon manufacturing, fiber chemical characteristics, single-component polyester rayon, etc., can solve the problem of large amount of addition, difficult continuous production, uneven distribution of antibacterial components and other problems, to achieve the effect of large amount of addition, lasting effect and low cost

Active Publication Date: 2016-04-27
JIANGSU GEM ADVANCED FIBER MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, the addition amount is relatively large, and the distribution of antibacterial components is uneven, so it is difficult to realize continuous production

Method used

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  • Method for preparing copper oxide/cuprous oxide-based antibacterial material through in situ polymerization
  • Method for preparing copper oxide/cuprous oxide-based antibacterial material through in situ polymerization

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing an antibacterial material based on copper oxide / cuprous oxide by in-situ polymerization, the specific steps are:

[0027] The first step: use copper oxide and cuprous oxide with a mass ratio of 50:50 to form an antibacterial powder, add 22.4g of antibacterial powder and 12.5g of diphenylmethane diisocyanate to 100ml of DMF solvent, and react at 80°C for 2h , after filtering and drying, the copper oxide / cuprous oxide composite antibacterial powder is obtained.

[0028] The second step: take the above-mentioned copper oxide / cuprous oxide composite antibacterial powder mass fraction as 5%, reaction monomer (terephthalic acid and ethylene glycol, molar ratio is 1: 1.2), stabilizer trimethyl phosphate (mass fraction is 50ppm) and catalyst ethylene glycol antimony (mass fraction is 300ppm), total mass fraction is 100%, joins in the polymerization reactor by in-situ polymerization (reaction process is: 230 ℃, 300kpa reaction 2h; 275 ℃ , 150pa reaction f...

Embodiment 2

[0031] A method for preparing an antibacterial material based on copper oxide / cuprous oxide by in-situ polymerization, the specific steps are:

[0032] The first step: use copper oxide and cuprous oxide with a mass ratio of 10:90 to form antibacterial powder, add 22.4g antibacterial powder and 12.5g diphenylmethane diisocyanate to 100ml after water removal treatment (put DMF into The dried molecular sieves were placed in a DMF solvent for 48 h), reacted at 80° C. for 2 h, filtered and dried to obtain a copper oxide / cuprous oxide composite antibacterial powder.

[0033] Second step: the above-mentioned copper oxide / cuprous oxide composite antibacterial powder mass fraction is 2%, reaction monomer (terephthalic acid and propylene glycol, molar ratio is 1: 1.3), stabilizer mass fraction is 30ppm (phosphoric acid Dimethyl ester) and catalyst mass fraction are 300ppm (ethylene glycol antimony), and total mass fraction is 100%, join in the polymerization reactor by in-situ polymeriz...

Embodiment 3

[0035] A method for preparing an antibacterial material based on copper oxide / cuprous oxide by in-situ polymerization, the specific steps are:

[0036]The first step: use copper oxide and cuprous oxide with a mass ratio of 90:10 to form an antibacterial powder, add 22.4g of antibacterial powder and 6g of diphenylmethane diisocyanate to 100ml of chloroform solvent, at 60°C React for 4 hours, filter and dry to obtain copper oxide / cuprous oxide composite antibacterial powder.

[0037] The second step: the mass fraction of the above-mentioned cupric oxide / cuprous oxide composite antibacterial powder is 3%, the mass fraction of the reaction monomer (caprolactam) is 97%, and the total content is 100%. Polymerization (reaction process is 220 ~ 240 ° C, 0.5Mpa ring opening for 3 hours, polycondensation reaction at 280 ° C for 3 hours) to prepare antibacterial resin based on cupric oxide / cuprous oxide, after drying, control the moisture content at 50 ~ 100ppm (mass content ), the anti...

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Abstract

The invention provides a method for preparing a copper oxide / cuprous oxide-based antibacterial material through in situ polymerization. The method is characterized by comprising the following steps: step 1, adding copper oxide, cuprous oxide and diisocyanate into an organic solvent, carrying out a reaction at a certain temperature for 1 to 3 h and then carrying out filtering and drying so as to obtain copper oxide / cuprous oxide composite antibacterial powder; and step 2, adding the copper oxide / cuprous oxide composite antibacterial powder, reaction monomer, a stabilizing agent and a catalyst into a polymerization reactor in proportion and carrying out in situ polymerization so as to prepare copper oxide / cuprous oxide-based antibacterial resin. The method provided by the invention is simple, highly efficient, low in cost and long-lasting in effect and has wide application prospects.

Description

technical field [0001] The invention belongs to the field of preparation of antibacterial agents and antibacterial fibers, in particular to a method for preparing antibacterial resins and fibers based on cupric oxide / cuprous oxide by in-situ polymerization. Background technique [0002] In today's society, the extreme environment, environmental pollution and other ecological environments have seriously deteriorated, and special living microenvironments such as confined spaces have led to an urgent need for functional protective textiles. At present, the fibers used to prepare textiles do not have antibacterial ability. Under certain conditions, they will provide an environment for bacteria to survive and reproduce, threatening human health. The main method to solve the antibacterial problem of fibers is to use antibacterial nanoparticles and polymer matrix for composite modification to prepare modified fibers with antibacterial effects. The fiber will gradually release anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08G63/78C08G69/16C08G69/28C08K9/04C08K3/22D01F6/90D01F6/92D01F1/10
CPCC08G63/00C08G69/00C08K3/08D01F6/90C08G63/183C08G63/78C08G69/16C08G69/28C08K3/22C08K9/04C08K2003/2248C08K2201/003C08K2201/011D01F1/103D01F6/92
Inventor 朱美芳周家良胡泽旭相恒学孙宾翁巍
Owner JIANGSU GEM ADVANCED FIBER MATERIALS RES INST CO LTD
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