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Antibacterial organic silicon rubber material and preparation method thereof

An organic silica gel and silica gel technology, which is applied in the field of antibacterial organic silica gel materials and its preparation, can solve the problems of insignificant heat dissipation and heat conduction effect, low requirements for equipment and reaction conditions, and poor antibacterial properties, and meets the requirements of equipment and reaction conditions. High, low price, obvious antibacterial effect

Inactive Publication Date: 2018-11-02
张礼国
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects in the prior art, the present invention provides an antibacterial organic silica gel material and a preparation method thereof. The preparation method is simple and easy, the raw materials are easy to obtain, the price is low, the requirements for equipment and reaction conditions are not high, and it is suitable for industrial production; The antibacterial organic silica gel material prepared by the preparation method overcomes the defects of poor antibacterial property, insignificant heat dissipation and heat conduction effect and further improvement in mechanical properties of traditional organic silica gel materials, has excellent heat dissipation and heat conductivity, and has a significant antibacterial effect. Good mechanical properties, and easy to form and process

Method used

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  • Antibacterial organic silicon rubber material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] A preparation method of an antibacterial organic silica gel material, comprising the steps of:

[0028] 1) Dissolve 10 g of thiadioic acid and 15.5 g of bis(4-aminophenoxy)dimethylsilane in 80 g of dimethyl sulfoxide to form a solution, and then add 1.5 g of dicyclohexylcarbodiimide, 1 -Hydroxybenzotriazole 1g, and place in the autoclave that is equipped with thermometer, pressure gauge, nitrogen inlet, pressure release port, and nitrogen replaces the air in the container. The temperature was raised to 200° C. over 1.5 hours, and kept at a pressure of 2 MPaG for 2 hours. Then, it takes 1 hour to raise the temperature to 270°C, and at the same time, the pressure is reduced to normal pressure during the heating period, and it is kept for 30 minutes, then cooled, then precipitated in water, washed 3 times with ethanol, and then placed in a vacuum oven at 90°C Bake for 18 hours to obtain an intermediate product;

[0029] 2) Dissolve 30 g of double-terminated hydroxy silic...

Embodiment 2

[0035] A preparation method of an antibacterial organic silica gel material, comprising the steps of:

[0036] 1) Dissolve 10g of thiadioic acid and 15.5g of bis(4-aminophenoxy)dimethylsilane in 90g of N,N-dimethylformamide to form a solution, and then add dicyclohexylcarbodiethylene 1.8 g of amine and 1 g of 1-hydroxybenzotriazole were placed in an autoclave equipped with a thermometer, a pressure gauge, a helium inlet, and a pressure release port, and the air in the container was replaced with helium. The temperature was raised to 210° C. over 1.7 hours, and kept at a pressure of 2.2 MPaG for 2 hours. Then, use 1.2 hours to raise the temperature to 275°C, and at the same time, reduce the pressure to normal pressure during the heating period, keep it for 30 minutes, then cool it, then settle it in water, wash it with ethanol 4 times, and then put it in a vacuum oven at 93°C Bake for 20 hours to obtain an intermediate product;

[0037] 2) Dissolve 33g of double-terminated hy...

Embodiment 3

[0043] A preparation method of an antibacterial organic silica gel material, comprising the steps of:

[0044] 1) Dissolve 10 g of thiadioic acid and 15.5 g of bis(4-aminophenoxy)dimethylsilane in 100 g of N-methylpyrrolidone to form a solution, and then add 2 g of dicyclohexylcarbodiimide, 1 -Hydroxybenzotriazole 1g is placed in an autoclave equipped with a thermometer, a pressure gauge, a neon gas inlet, and a pressure release port, and the neon gas replaces the air in the container. The temperature was raised to 220° C. over 2 hours, and kept at a pressure of 2.2 MPaG for 2 hours. Then, it takes 1.3 hours to raise the temperature to 280°C, and at the same time, the pressure is reduced to normal pressure during the heating period, and it is kept for 30 minutes, then cooled, then precipitated in water, washed 5 times with ethanol, and then placed in a vacuum drying oven at 96°C Bake for 21 hours to obtain an intermediate product;

[0045] 2) Dissolve 35g of double-terminate...

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Abstract

The invention discloses a preparation method of an antibacterial organic silicon rubber material. The preparation method includes steps: 1) tidiacic and bis(4-aminophenoxy)dimethylsilane polycondensate preparation; 2) dichloro silicon oil preparation; 3) silicon rubber main material preparation; 4) ion exchange. The invention further discloses the antibacterial organic silicon rubber material prepared according to the preparation method of the antibacterial organic silicon rubber material. The antibacterial organic silicon rubber material has advantages of excellent heat dissipation and heat conduction performances, remarkable antibacterial effects, great mechanical performances and easiness in forming processing.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antibacterial organic silica gel material and a preparation method thereof. Background technique [0002] In recent years, due to its low surface tension, small viscosity-temperature coefficient, high compressibility, high gas permeability, and high and low temperature resistance, electrical insulation, oxidation resistance, weather resistance, Corrosive, non-toxic, odorless and physiologically inert, it is widely used in aerospace, electrical and electronic, construction, transportation, chemical, textile, food, light industry, medical and other industries. With the continuous increase in the number and variety of silicones, the application fields continue to expand. For example, due to the good biocompatibility of silicone, it is non-irritating, non-toxic, non-allergic to human tissues, and has less rejection by the body; Good physical and chemical properties; it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/392C08G77/385C08G77/455C09K5/14
CPCC08G77/385C08G77/392C08G77/455C09K5/14
Inventor 张礼国
Owner 张礼国
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