A kind of preparation method of antibacterial silicone rubber

A technology of silicone rubber and antibacterial agent, which is applied in the field of preparation of antibacterial silicone rubber, can solve the problems of easy change of mechanical properties of silicone rubber, short antibacterial duration, complex preparation process, etc., to protect the human body, with promising application prospects and simple process conditions Effect

Active Publication Date: 2017-12-22
KUNMING UNIV OF SCI & TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above problems in the preparation of antibacterial silicone rubber, such as short antibacterial duration, poor fusion, easy change of mechanical properties of silicone rubber, complex preparation process, single antibacterial property, easy to produce drug resistance, etc., and provides a preparation method of antibacterial silicone rubber

Method used

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  • A kind of preparation method of antibacterial silicone rubber
  • A kind of preparation method of antibacterial silicone rubber
  • A kind of preparation method of antibacterial silicone rubber

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Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: The preparation method of this zinc series antibacterial silicone rubber is as follows:

[0029] (1) Set up a constant temperature stirring reaction device (can be vacuumed), the temperature of the water bath is 90°C, preheat the water glass solution and the baking soda solution to 90°C respectively, and inject them into the reactor at a volume ratio of 1:1.25 for mixing. Fully stir the reaction at 400 rpm for 15 min, wherein the concentration of water glass solution is 15 wt%, and the concentration of baking soda solution is 10 wt%;

[0030] (2) Measure water glass solution and baking soda solution according to the volume ratio of 1:1.25, and preheat them to 90°C respectively, then pour the preheated water glass solution into step (1) under stirring condition of 150 rpm Add sodium bicarbonate solution dropwise to the reactant, react at 90°C for 15 min after the dropwise addition, adjust the pH value to 5 with sulfuric acid, then add 0.5 mol / L zinc sulfate...

Embodiment 2

[0045] Embodiment 2: the preparation method of this zinc series antibacterial silicone rubber is as follows:

[0046] (1) Set up a constant temperature stirring reaction device (can be vacuumed), the temperature of the water bath is 85°C, preheat the water glass solution and the baking soda solution to 85°C respectively, and inject them into the reactor at a ratio of 1:1.3 by volume. Fully stir the reaction at 450 rpm for 15 min, wherein the concentration of water glass solution is 12 wt%, and the concentration of baking soda solution is 9 wt%;

[0047] (2) Take the water glass solution and the baking soda solution respectively according to the volume ratio of 1:1.3, and preheat them to 85°C respectively, then pour the preheated water glass solution into step (1) under the stirring condition of 100 rpm Add sodium bicarbonate solution dropwise to the reactant, react at 85°C for 20 min after the dropwise addition, adjust the pH value to 6 with sulfuric acid, then add 0.8 mol / L z...

Embodiment 3

[0058] Embodiment 3: the preparation method of this copper series antibacterial silicone rubber is as follows:

[0059] (1) Preheat the water glass solution and the baking soda solution to 80°C respectively, inject them into the reactor at a ratio of 1:1.5 by volume and mix them, and fully stir and react at 80°C and 400 rpm for 15 minutes. The concentration of the water glass solution is 20 wt%, and the concentration of baking soda solution is 10 wt%;

[0060] (2) Take the water glass solution and the baking soda solution respectively according to the volume ratio of 1:1.5, and preheat them to 80°C respectively, and then pour the preheated water glass solution into the step (1) under the stirring condition of 200 rpm Add sodium bicarbonate solution dropwise to the reactant. After the dropwise addition, react at 80°C for 15 min, adjust the pH value to 5 with sulfuric acid, and then add 0.05 mol / L copper sulfate solution to react for 2.5 h to obtain a gel Antibacterial agent, w...

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Abstract

The invention discloses a preparation method of antibacterial silicone rubber. In the method, antibacterial ions are attached to a white carbon black carrier to obtain an antibacterial gel through a sol-gel method, and then pretreated silicone rubber stock solution is added and fully fused , curing to obtain the silicone rubber material with antibacterial ability; the antibacterial silicone rubber prepared by the method of the present invention has high sterilization rate, excellent mechanical properties, no drug resistance, strong antibacterial broad-spectrum, relatively safe to human body and environment, and the preparation process conditions Simple and convenient, low cost and promising application prospect.

Description

technical field [0001] The invention relates to a preparation method of antibacterial silicone rubber. Background technique [0002] Silicone rubber products are widely used in medical, life, industry and other fields. Such as medical catheters, prosthetics, occluders, artificial trachea, artificial lungs, artificial bones, silicone rubber duodenal tubes, etc., and are also used in mobile phone casings, children's pacifiers, etc. However, due to its special structure, bacteria and fungi can easily adhere to the surface and cause diseases to humans. As a new type of functional material, antibacterial materials can effectively inhibit bacteria, germs and other microorganisms harmful to human body in the surrounding environment. Therefore, it has become the focus of people's research to combine the inorganic antibacterial with remarkable antibacterial effect, wide application and environmental friendliness and silicone rubber to obtain antibacterial silicone rubber materials....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08K9/02C08K3/36
Inventor 唐晓宁张彬李欢张定郭一婧
Owner KUNMING UNIV OF SCI & TECH
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