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Antibacterial silicone rubber and preparation method thereof

A technology of silicone rubber and liquid silicone rubber, applied in the field of silicone rubber and its preparation, can solve the problems of insufficient effectiveness of silicone rubber, insufficient concentration of active silver ions, mutual interference of silicone rubber cross-linking systems, etc.

Inactive Publication Date: 2015-06-24
HANGZHOU GEFANG NEW MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silver-containing antibacterial additives are used in a variety of synthetic polymer materials, but most of them are not effective enough in silicone rubber or interfere with the crosslinking system of silicone rubber
This low efficiency may be due to the insufficient concentration of active silver ions diffusing to the surface of the silicone rubber

Method used

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  • Antibacterial silicone rubber and preparation method thereof
  • Antibacterial silicone rubber and preparation method thereof
  • Antibacterial silicone rubber and preparation method thereof

Examples

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Effect test

Embodiment Construction

[0030] The present invention will be further described below in conjunction with Examples and Comparative Examples. In the following examples and comparative examples, the reduction rate is used to represent the antibacterial performance, and the higher the value, the stronger the antibacterial performance.

[0031] In the following examples and comparative examples, the antibacterial test adopts the AATCC 100 / film contact method, and the sample is silicone rubber after vulcanization containing different concentrations of antibacterial agents or carboxylic acids. The operating steps are as follows:

[0032] 1. Inoculate the silicone rubber film with Staphylococcus aureus and Escherichia coli and incubate for 18-24 hours;

[0033] 2. Standardize the test microorganisms to 10 with a spectrophotometer 8 group of

[0034] 3. Dilute the test microorganisms with 0.2% nutrient broth and sterile saline to obtain about 1-5x10 5 group of

[0035] 4. Inoculate the test sample: Cut th...

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Abstract

The invention relates to silicone rubber and a preparation method thereof, in particular to antibacterial silicone rubber and a preparation method thereof. The antibacterial silicone rubber comprises, by weight percentage, 96.5-98% of silicone rubber, 0.1-10% of antibacterial additive containing silver ions and 0.1-5% of carboxylic acid, wherein the antibacterial additive containing silver ions comprises one or more of silver-loaded zirconium phosphate, silver carboxylates, silver-impregnated zeolite, glass particles with silver-loaded surface coatings, colloidal silver particles or nano silver particles; the carboxylic acid comprises one or more of single acid, double acid, tribasic acid, fatty acid, alicyclic acid, alicyclic acid aromatic carboxylic acid or the anhydride of the carboxylic acid. The silicone rubber is efficient in antibacterial activity and applicable to various application requiring antibacterial performance.

Description

technical field [0001] The invention relates to a silicone rubber and a preparation method thereof, in particular to an antibacterial silicone rubber and a preparation method thereof. Background technique [0002] Silver-containing antibacterial additives are used in a variety of synthetic polymer materials, but most of them are not effective enough in silicone rubber or interfere with the crosslinking system of silicone rubber. This low efficiency may be due to the insufficient concentration of active silver ions diffusing to the surface of the silicone rubber. Increasing the activity of these silver-containing additives in silicone rubber has its practical significance and application requirements. Contents of the invention [0003] The object of the present invention is to provide a kind of antibacterial silicone rubber and its preparation method, to solve the problems existing in the prior art, the silicone rubber of the present invention has excellent antibacterial p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08K9/12C08K3/08C08K5/09C08K5/092
Inventor 周海燕
Owner HANGZHOU GEFANG NEW MATERIAL TECH CO LTD
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