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A kind of preparation method of antibacterial 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: 2018-05-25
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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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  • A kind of preparation method of antibacterial high temperature silicone rubber
  • A kind of preparation method of antibacterial high temperature silicone rubber
  • A kind of preparation method of antibacterial high temperature silicone rubber

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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 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%;

[0031] (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 m...

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 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%;

[0046] (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, the...

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, 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%;

[0057] (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 Antib...

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Abstract

The invention discloses a method for preparing antibacterial high-temperature silicone rubber. In the method, antibacterial ions are attached to a white carbon black carrier by a sol-gel method to obtain an antibacterial gel, and then corresponding high-temperature silicone rubber raw rubber is added to fully Mixing and vulcanization can prepare high-temperature silicone rubber material with antibacterial ability, or directly add high-temperature vulcanized silicone rubber, fully fused and cured to obtain the silicone rubber material with antibacterial ability; the antibacterial high-temperature silicone rubber prepared by this method is resistant to high temperature, On the basis of enhancing the mechanical properties of silicone rubber, it has high antibacterial properties; it has strong antibacterial broad spectrum, high sterilization rate and no drug resistance, and is relatively safe for the human body and the environment; it has a wide range of uses and is conducive to large-scale quantitative production in 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 Patents(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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