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Modified silicone rubber, preparation method and applications thereof, and antibacterial silicone rubber product

A technology of modifying silicon and rubber, which is applied in the field of medical materials, can solve the problems of poor antibacterial effect, bacterial spread, infection, etc., and achieve the effect of simple and fast preparation method and good antibacterial effect

Inactive Publication Date: 2019-05-03
CHANGZHOU ANKANG MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a modified silicone rubber, which has a good antibacterial effect and solves the problem that traditional silicone rubber is easy to spread bacteria and cause infection due to poor antibacterial effect

Method used

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  • Modified silicone rubber, preparation method and applications thereof, and antibacterial silicone rubber product

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preparation example Construction

[0041] In addition, the present application also provides a method for preparing the above-mentioned modified silicone rubber, for example, may include the following steps:

[0042] Preparation of mixed liquid: mix carboxymethyl chitosan and aloe extract according to the ratio to obtain mixed liquid.

[0043] Wherein, the preparation method of the aloe extract may include: squeezing the peeled aloe, filtering, mixing the filtrate with deionized water at a weight ratio of 1:3-5, and sterilizing. As an option, filtration can be accomplished by passing through a sieve of 80-120 mesh; sterilization can be performed by ultraviolet light.

[0044] Preferably, carboxymethyl chitosan and aloe extract are mixed under ice bath conditions (0° C.).

[0045] More preferably, the mixing of the carboxymethyl chitosan and the aloe extract is carried out in an ice bath with a stirring speed of 1200-1800 r / min.

[0046] Further, after the carboxymethyl chitosan is mixed with the aloe extract,...

Embodiment 1

[0058] This embodiment provides a modified silicone rubber, which includes the following raw materials in parts by weight: 24 parts of polydimethylsiloxane, 55 parts of polysiloxane containing vinyl end groups, octamethyltetrasiloxane 5 parts, 0.4 parts of catalyst, 4 parts of glycidyl ether epoxy resin, 4 parts of surface modifier, 0.2 parts of carboxymethyl chitosan, 15 parts of aloe extract.

[0059] Wherein, the catalyst is chloroplatinic acid with a concentration of 0.02 g / L; the surface modifier is vinyltriethoxysilane.

[0060] The preparation method of this modified silicone rubber comprises:

[0061] 1) Weigh the carboxymethyl chitosan according to the weight part, then add the aloe extract under the condition of ice bath at 0°C and carry out continuous stirring at a stirring rate of 1500r / min for 2h, and then filter with a 40-mesh screen to obtain the mixed solution, spare.

[0062] Wherein, the preparation method of the aloe extract comprises: taking an appropriat...

Embodiment 2

[0067] This embodiment provides a modified silicone rubber, which includes the following raw materials in parts by weight: 28 parts of polydimethylsiloxane, 61 parts of polysiloxane containing vinyl end groups, octamethyltetrasiloxane 7 parts, 0.6 parts of catalyst, 6 parts of glycidyl ether epoxy resin, 6 parts of surface modifier, 0.4 parts of carboxymethyl chitosan, 20 parts of aloe extract.

[0068] Wherein, the catalyst is chloroplatinic acid with a concentration of 0.02 g / L; the surface modifier is amino functional silane.

[0069] The preparation method of this modified silicone rubber comprises:

[0070] 1) Weigh the carboxymethyl chitosan according to the weight part, then add the aloe extract under the condition of ice bath at 0°C and carry out continuous stirring at a stirring rate of 1500r / min for 2h, and then filter with a 40-mesh screen to obtain the mixed solution, spare.

[0071] Wherein, the preparation method of the aloe extract comprises: taking an appropr...

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Abstract

The invention relates to a modified silicone rubber, a preparation method and applications thereof, and an antibacterial silicone rubber product, and belongs to the technical field of medical material. The raw materials of the modified silicone rubber comprise polydimethylsiloxane, vinyl terminated polysiloxane, octamethyltetrasiloxane, a catalyst, glycidyl ether epoxy resin, a surface modifier, carboxymethyl chitosan, and an aloe extracted product. The modified silicone rubber possesses excellent bacteria inhibition effect, is capable of solving a problem in the prior art that injection is caused because of bacteria propagation caused by the poor bacteria inhibition effect of conventional silicone rubber. The preparation method is simple and rapid, and is suitable for industrialized production. The above modified silicone rubber can be used for preparing the silicone rubber product with bacteria inhibition effect, and the silicone rubber product is provided with excellent bacteria inhibition effect.

Description

technical field [0001] The invention relates to the technical field of medical materials, and in particular to a modified silicone rubber, a preparation method and application thereof, and a silicone rubber product with antibacterial effect. Background technique [0002] With the continuous development of science and technology, more and more new materials appear in people's life. Among them, as a highly elastic polymer material with reversible deformation, silicone rubber has the advantages of excellent weather resistance, ozone resistance, safety and non-toxicity to the human body, etc., and has been widely used in the medical industry, aviation industry and food industry. Applications. [0003] In terms of medical treatment, silicone rubber can be used as medical materials to manufacture medical products, such as using silicone rubber to manufacture artificial organs and human tissue substitutes. However, due to the poor antibacterial effect of traditional silicone rubb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08L63/00C08L5/08C08K5/5425C08K5/544A61L31/06A61L31/04A61L31/16
Inventor 李莹李晨王春华丁青龙李志伟查志远
Owner CHANGZHOU ANKANG MEDICAL EQUIP
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