Preparation method of antibiosis high temperature silicone rubber

A technology of silicone rubber and silicone rubber raw rubber, which is applied in the field of preparation of antibacterial high-temperature silicone rubber, which can solve the problems of easy change of mechanical properties of silicone rubber, single antibacterial property, and poor mechanical properties of silicone rubber, so as to protect product quality or human health , Antibacterial broad-spectrum strong, good bactericidal effect

Active Publication Date: 2016-01-13
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
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  • Application Information

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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 antibacterial room temperature silicone rubber has poor mechanical properties, strength Insufficient and other defects, a preparation method of antibacterial high temperature silicone rubber is provided

Method used

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  • Preparation method of antibiosis high temperature silicone rubber
  • Preparation method of antibiosis high temperature silicone rubber
  • Preparation method of antibiosis high temperature silicone rubber

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Effect test

Embodiment 1

[0029] Embodiment 1: The preparation method of this zinc series antibacterial high temperature silicone rubber is as follows:

[0030] (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 stirred and reacted for 15min at 400rpm, wherein the concentration of water glass solution was 15wt%, and the concentration of sodium bicarbonate solution was 10wt%;

[0031] (2) Measure the water glass solution and the baking soda solution according to the volume ratio of 1:1.25, and preheat them to 90°C respectively, and then pour the preheated water glass solution into the step (1) under the stirring condition of 150rpm Add sodium bicarbonate solution dropwise to the reactant. After the dropwise addition, react at 90°C for 15 minutes, adjust the pH value to 5 wit...

Embodiment 2

[0044] Embodiment 2: The preparation method of this zinc series antibacterial high temperature silicone rubber is as follows:

[0045] (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 stirred and reacted for 15min at 450rpm, wherein the concentration of water glass solution was 12wt%, and the concentration of sodium bicarbonate solution was 9wt%;

[0046] (2) Measure the water glass solution and the baking soda solution according to the volume ratio of 1:1.3, and preheat them to 85°C respectively, and then pour the preheated water glass solution into the step (1) under the stirring condition of 100rpm Add sodium bicarbonate solution dropwise to the reactant. After the dropwise addition, react at 85°C for 20 minutes, adjust the pH value to 6 with sulfuric ...

Embodiment 3

[0055] Embodiment 3: the preparation method of this copper series antibacterial high temperature silicone rubber is as follows:

[0056] (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, fully stir and react at 80°C and 400rpm for 15 minutes, and the concentration of the water glass solution is 20wt %, the baking soda solution concentration is 10wt%;

[0057] (2) Measure water glass solution and baking soda solution according to the volume ratio of 1:1.5, and preheat them to 80°C respectively, then pour the preheated water glass solution into step (1) under stirring condition of 200rpm Add sodium bicarbonate solution dropwise to the reactant. After the dropwise addition, react at 80°C for 15 minutes, adjust the pH value to 5 with sulfuric acid, and then add 0.05mol / L copper sulfate solution to react for 2.5 hours to obtain a gel-like antibacterial agent, wherein the ...

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Abstract

The invention discloses a preparation method of antibiosis high temperature silicone rubber. The method comprises the following steps: adhering antibiosis ions to a white carbon black carrier through a sol-gel technology to obtain antibiosis gel; and adding corresponding high temperature silicone rubber raw rubber, fully mixing, and vulcanizing to prepare a high temperature silicone rubber material with antibiosis ability, or directly adding high temperature silicon sulfide rubber, fully fusing, and curing to obtain the silicone rubber material with antibiosis ability. The antibiosis high temperature silicone rubber prepared in the invention has the advantages of high temperature resistance, enhancement of the mechanical performances of silicone rubber, high antibiosis, strong antibiosis broad spectrum activity, high sterilization rate, no generation of drug resistance, safety to human bodies and environment, wide uses, and facilitation of the large-scale quantitative production of the future market.

Description

technical field [0001] The invention relates to a preparation method of antibacterial high-temperature silicone rubber. Background technique [0002] Silicone rubber products are widely used, and with the continuous improvement of living standards, the market demand for functional silicone rubber products is increasing. Among them, industrial production, medical and health care, people's livelihood and health care all have higher requirements for the antibacterial properties of silicone rubber products , such as machine tools, surgical instruments, medical supplies, artificial organs, edible utensils, etc. According to the vulcanization method and vulcanization temperature, silicone rubber is divided into heat vulcanization type (high temperature vulcanization silicone rubber HTV) and room temperature vulcanization type (RTV). Room temperature silicone rubber can be cross-linked and cured at room temperature, and its physical state is fluid or viscous paste. It is often use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08K13/02C08K3/36C08K3/30C08K3/24C08K5/14C08K5/549C08K3/16C08K3/22
Inventor 唐晓宁张彬郭一婧张定李欢
Owner KUNMING UNIV OF SCI & TECH
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