Unlock instant, AI-driven research and patent intelligence for your innovation.

Magnetic ion antibacterial powder for high polymer material

A technology of polymer materials and antibacterial powder, applied in the field of antibacterial materials, can solve the problems of low killing rate of Gram-negative cells, decreased concentration of antibacterial gene groups, and decreased antibacterial performance, so as to avoid low antibacterial properties and improve antioxidation. , the effect of prolonging the service life

Inactive Publication Date: 2017-05-10
ZHEJIANG WATERHOR ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The second type: cations and segregants in quaternary phosphonium salts have a great influence on the antibacterial activity of polyquaternary phosphonium salts. If a compound with relatively close ions is formed, its antibacterial performance will be reduced
Studies have shown that antibacterial agents containing organotin antibacterial groups have a low killing rate for Gram-negative cells. After monomer copolymerization, the concentration of antibacterial gene groups will decrease, and the antibacterial activity will also decrease.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetic ion antibacterial powder for high polymer material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A magnetic ion antibacterial powder for polymer materials, prepared by the following method:

[0042] (1) Preparation of crystal A: preparation of 50g concentration is 37wt% hydrochloric acid solution, adding dilanthanum trioxide of hydrochloric acid molar weight 1 / 6 in the hydrochloric acid solution and constantly stirring, reacting, generating lanthanum chloride; after the reaction finishes, Cool down, pour the solution into an evaporating dish, evaporate with a water bath until white crystals are precipitated, the solution turns light yellow, stop heating in the water bath, lower the temperature, perform suction filtration, vacuum-dry the filtered solid at 55°C to obtain half Transparent crystal A.

[0043] (2) Preparation of off-white object B:

[0044] Prepare a hydrochloric acid solution with a concentration of 36 wt %; add lanthanum, magnesium powder and copper powder whose total mass is 1 / 6 of the hydrochloric acid solution to the hydrochloric acid solution; st...

Embodiment 2

[0048] A magnetic ion antibacterial powder for polymer materials, prepared by the following method:

[0049] (1) The preparation of crystal A: preparation 45g concentration is the hydrochloric acid solution of 36wt%, in hydrochloric acid solution, add dilanthanum trioxide of hydrochloric acid molar weight 1 / 5 and constantly stir, react, generate lanthanum chloride; After reaction finishes, Lower the temperature, pour the solution into an evaporating dish, and evaporate with a water bath until white crystals are precipitated, the solution turns light yellow, stop heating in the water bath, lower the temperature, perform suction filtration, and vacuum-dry the filtered solid at 50°C to obtain half Transparent crystal A.

[0050] (2) Preparation of off-white object B:

[0051] Prepare a hydrochloric acid solution with a concentration of 34 wt %; add lanthanum, magnesium powder and copper powder whose total mass is 1 / 5 of the hydrochloric acid solution to the hydrochloric acid sol...

Embodiment 3

[0054] A magnetic ion antibacterial powder for polymer materials, prepared by the following method:

[0055] (1) Preparation of crystal A: preparation of 55g concentration is 38wt% hydrochloric acid solution, adding dilanthanum trioxide of hydrochloric acid molar weight 1 / 7 in the hydrochloric acid solution and constantly stirring, reacting, generating lanthanum chloride; after the reaction finishes, Cool down, pour the solution into an evaporating dish, evaporate with a water bath until white crystals are precipitated, the solution turns light yellow, stop heating in the water bath, lower the temperature, perform suction filtration, vacuum-dry the filtered solid at 60°C to obtain half Transparent crystal A.

[0056] (2) Preparation of off-white object B:

[0057] Prepare a hydrochloric acid solution with a concentration of 38 wt %; add lanthanum, magnesium powder and copper powder whose total mass is 1 / 7 of the hydrochloric acid solution to the hydrochloric acid solution; st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of antibacterial materials, and discloses magnetic ion antibacterial powder for a high polymer material. A preparation method comprises the following steps: (1) dissolving lanthanum trioxide into a hydrochloric acid solution, cooling, performing suction filtration, and performing vacuum drying so as to obtain crystal A; (2) adding rare earth, magnesium powder and copper powder into the hydrochloric acid solution, drying so as to obtain paste, adding barium ferrite into an absolute ethyl alcohol or sodium hydroxide solution so as to form a nano-grade ultramicron solution, mixing the paste with the nano-grade ultramicron solution, and evaporating so as to obtain a slightly white object B; (3) sequentially adding the crystal A and the white object B into a mixed solution of acetone and diethyl ether, continuously adding the mixed solution of acetone and diethyl ether, evaporating so as to obtain paste again, repeating the operation for multiple times, and finally, performing vacuum drying and grinding, thereby obtaining the magnetic ion antibacterial powder. The magnetic ion antibacterial powder provided by the invention is good in antibacterial activity, in addition, the antibacterial properties of the high polymer material can be effectively improved, and the service life of the high polymer material can be effectively prolonged.

Description

technical field [0001] The invention relates to the field of antibacterial materials, in particular to a magnetic ion antibacterial powder used for polymer materials. Background technique [0002] Polymer materials are ubiquitous in our lives, and bacteria also seriously threaten the safety of human life and property. More than 17 million people die from bacterial infections every year. In view of the fact that bacteria are becoming more and more serious, people have discovered that antibacterial agents can be added to polymer materials during the research process. These antibacterial agents have a significant preventive and resistive effect on bacteria, but some of these antibacterial agents have Antimicrobial activity is problematic. [0003] The first one: It is found that the quaternary ammonium salt group with a long-chain alkyl group has strong antibacterial properties, but organic small molecule antibacterial agents have the disadvantages of being volatile, difficult...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L101/00C08K3/16C08K3/22
CPCC08K3/16C08K3/22C08K2201/003C08K2201/01C08L101/00
Inventor 李明孙月平
Owner ZHEJIANG WATERHOR ENVIRONMENTAL PROTECTION TECH CO LTD