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Medical silicone rubber with modified hydrophilic structure on surface as well as preparation and application of medical silicone rubber

A hydrophilic structure, silicone rubber technology, applied in the field of medical silicone rubber material modification, can solve the problems of easy deformation of silicone rubber, breeding bacteria, ensure hydrophilicity, etc., achieve the best antibacterial and anti-tear effects, prevent bacteria The effect of breeding and good antibacterial effect

Inactive Publication Date: 2022-03-25
惠州市百兆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that medical silicone rubber has good thermal stability and antibacterial properties while ensuring hydrophilicity due to its special practical field. Silicone rubber is easy to deform or breed bacteria during use, causing safety problems. A kind of medical silicone rubber with modified hydrophilic structure on the surface and its preparation and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A medical silicone rubber with a modified hydrophilic structure on the surface and its preparation and application, comprising the following components by weight: 10 parts of polydimethylsiloxane, 100 parts of raw silicone rubber, 0.3 parts of 2,5 -Dimethyl-2,5-di-tert-butyl peroxide hexane, activated carbon, silver nitrate solution, chitosan, acetic acid aqueous solution, methyl hydrogen siloxane and anhydrous methanol and the volume of trifluoromethanesulfonic acid The reaction solution prepared at a ratio of 100:100:1 is denoted as A reaction solution, and the reaction solution is prepared with polyethylene glycol methyl ether acrylate with a molecular weight of 200KD, isopropanol and a platinum catalyst in a volume ratio of 1:0.1:1 , denoted as B reaction solution; Its preparation method comprises the steps:

[0024] Step 1, immersing activated carbon in an aqueous solution of silver nitrate, drying to obtain a powder, washing, filtering and drying again to obtain a...

Embodiment 2

[0039] A medical silicone rubber with a modified hydrophilic structure on the surface and its preparation and application, comprising the following components by weight: 10 parts of polydimethylsiloxane, 100 parts of raw silicone rubber, 0.55 parts of 2,5 - the volume of dimethyl-2,5-di-tert-butylperoxyhexane, activated carbon, silver nitrate solution, chitosan, aqueous acetic acid, methylhydrogensiloxane and anhydrous methanol and trifluoromethanesulfonic acid The reaction solution prepared at a ratio of 175:1300:1 is denoted as A reaction solution, and the reaction solution is prepared with polyethylene glycol methyl ether acrylate with a molecular weight of 600KD, isopropanol and a platinum catalyst in a volume ratio of 3:0.55:1 , denoted as B reaction solution; Its preparation method comprises the steps:

[0040] Step 1, immersing activated carbon in an aqueous solution of silver nitrate, drying to obtain a powder, washing, filtering and drying again to obtain a modified p...

Embodiment 3

[0055] A medical silicone rubber with a modified hydrophilic structure on the surface and its preparation and application, comprising the following components by weight: 10 parts of polydimethylsiloxane, 100 parts of raw silicone rubber, 0.8 parts of 2,5 -Dimethyl-2,5-di-tert-butyl peroxide hexane, activated carbon, silver nitrate solution, chitosan, acetic acid aqueous solution, methyl hydrogen siloxane and anhydrous methanol and the volume of trifluoromethanesulfonic acid The reaction solution prepared at a ratio of 250:2500:1 is denoted as A reaction solution, and the reaction solution is prepared with polyethylene glycol methyl ether acrylate with a molecular weight of 1000KD, isopropanol and a platinum catalyst in a volume ratio of 5:1:1 , denoted as B reaction solution; Its preparation method comprises the steps:

[0056] Step 1, immersing activated carbon in an aqueous solution of silver nitrate, drying to obtain a powder, washing, filtering and drying again to obtain a...

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PUM

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Abstract

The invention relates to a medical silicone rubber material modification technology, in particular to medical silicone rubber with a modified hydrophilic structure on the surface as well as preparation and application of the medical silicone rubber with the modified hydrophilic structure on the surface. The cleaning agent is prepared from 1, 5-di-tert-butyl peroxide hexane, activated carbon, a silver nitrate solution, chitosan and an acetic acid aqueous solution. The modified powder and the semi-finished product are mixed, so that the silicone rubber finished product is rich in silver ions, and the breeding of bacteria is effectively prevented; the medical silicone rubber prepared by the preparation method not only has a good antibacterial effect, but also has relatively high tear resistance, so that the problem that the silicone rubber in the prior art is generally relatively poor in tear resistance and does not have good antibacterial performance is effectively solved.

Description

technical field [0001] The invention relates to a modification technology of medical silicone rubber materials, in particular to a medical silicone rubber with a modified hydrophilic structure on the surface, as well as its preparation and application. Background technique [0002] Hydrophilic surface modification methods of silicone rubber include surface grafting method, plasma technology and surface coating method, among which the most commonly used method is surface grafting method. The principle of the surface grafting method is: After a certain chemical treatment, the surface of the silicone rubber has a polar group, and then the hydrophilic substance is grafted to the surface of the material by chemical reaction, thereby improving the surface hydrophilicity of the silicone rubber. Due to the special application field of medical silicone rubber, it is difficult to make silicone rubber have good thermal stability and antibacterial properties while ensuring hydrophilicit...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K7/24C08K5/14C08K9/02C08K3/28C08J7/12
CPCC08L83/04C08J7/12C08J2383/04C08J2483/04C08J2405/08C08K7/24C08K5/14C08K9/02C08K3/28
Inventor 黄彬
Owner 惠州市百兆科技有限公司
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