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.
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[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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