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Medical silicone rubber and preparation method thereof

A technology of silicone rubber and silica gel, applied in the production of bulk chemicals, etc., can solve problems such as vulcanization system is easy to pollute the human body, pharmaceutical exudates, volatiles, it is difficult to prepare medical rubber products, and the use safety is not strong. Eliminate the mixing of toxic ingredients, excellent mechanical properties, and novel formula design effects

Inactive Publication Date: 2016-02-03
ANHUI ZHONGMA RUBBER & PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under the conditions of high temperature and high pressure, traditional medical rubber products tend to produce exudates and volatiles that pollute the human body and pharmaceuticals in their vulcanization system, making it difficult to prepare medical rubber products that meet the highest quality standards for pharmaceuticals
Existing medical rubber products and preparation methods thereof have complicated process, poor product environmental protection, weak use safety, and low service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A medical silicone rubber is made of the following raw materials in parts by mass:

[0028] Including auxiliary silica gel, polysiloxane glue and mixed solution;

[0029] Among them: auxiliary silica gel includes: 80 parts of methyl vinyl silicone rubber, 10 parts of polypropylene, 8 parts of sodium carboxymethyl starch, 5 parts of gelatin, 4 parts of octamethylcyclotetrasilazane, dioctyl phthalate 2 parts of ester, 3 parts of lactic acid, 2 parts of hydrogen-containing silicone oil, 1 part of accelerator TMTD, 1 part of dicumyl peroxide, 3 parts of zinc oxide, 1 part of stearic acid, 0.5 parts of microcrystalline wax, 1 part of white carbon black , 2 parts of antioxidant;

[0030] Polysiloxane gum includes: hydroxyl-terminated dimethyl silicone rubber: 45 parts, dibutyltin diacyloxyheptane: 0.1 part, fumed silica: 10 parts, butylamine: 5 parts, methyltrisilane: 1 part Part, crosslinking agent: 1 part, catalyst: 1 part, tackifier: 1 part;

[0031] The mixture include...

Embodiment 2

[0033] A medical silicone rubber is made of the following raw materials in parts by mass:

[0034] Including auxiliary silica gel, polysiloxane glue and mixed solution;

[0035] Among them: auxiliary silica gel includes: 100 parts of methyl vinyl silicone rubber, 15 parts of polypropylene, 12 parts of sodium carboxymethyl starch, 8 parts of gelatin, 8 parts of octamethylcyclotetrasilazane, dioctyl phthalate 5 parts of ester, 7 parts of lactic acid, 5 parts of hydrogen-containing silicone oil, 4 parts of accelerator TMTD, 2.5 parts of dicumyl peroxide, 5 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of microcrystalline wax, 2 parts of white carbon black , 5 parts of antioxidant;

[0036] Polysiloxane gum includes: hydroxyl-terminated dimethyl silicone rubber: 50 parts, dibutyltin diacyloxyheptane: 0.2 parts, fumed silica: 15 parts, butylamine: 10 parts, methyltrisilane: 2 parts Parts, crosslinking agent: 2 parts, catalyst: 2 parts, tackifier: 2 parts;

[0037] The ...

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Abstract

Disclosed is medical silicone rubber. The medical silicone rubber is characterized by comprising auxiliary silicone gel, polysiloxane gel and mixed solutions; the mixed solutions are added into the auxiliary silica gel and the polysiloxane gel respectively, the ratio of the mixed solution added into the auxiliary silica gel to the mixed solution added into the polysiloxane gel is 1:1.36, stirring is performed for 10 min, then 20% of the polysiloxane gel is taken and added into a mixed adhesive of the mixed solution and the auxiliary silica gel, stirring is performed, the other 80% of the polysiloxane gel is added after stirring is performed for 3 min, and stirring continues to be performed for 2 min to obtain a rubber body; the rubber body is cooled in air at the temperature of 15 DEG C for 1 d, and the rubber body is sliced to obtain the medical silicon rubber. The formula is novel in design, raw materials are easy to obtain, the production technology is simple, and the obtained product has the high chemical stability, is free of irritation, high in safety and resistant to heat and aging, has the excellent mechanical performance, has the certain medicine components when used for a medicine bottle plug compared with a common silicon rubber plug, can volatilize ingredients beneficial to the human body when combined with normal saline, avoids the phenomenon that toxic ingredients are mixed, and is safe and beneficial.

Description

Technical field: [0001] The invention relates to the technical field of medical rubber processing, in particular to a medical silicone rubber and a preparation method thereof. Background technique: [0002] With the development of society, there are more and more types of rubber products used in the medical and health field, such as rubber stoppers for various pharmaceutical bottles, pistons for sterile syringes, sealing rubber seals for injections, hoses, catheters, medical air cushions, sterilization Rubber medical gloves, baby pacifiers, blood transfusion tubes, etc. Ideal medical rubber products not only need to have good physical properties, but also must be non-toxic and chemically inert. In particular, rubber products in the body should have the characteristics of not causing disease, not damaging adjacent tissues, not causing allergies, and having good aging properties. [0003] Under the conditions of high temperature and high pressure, the vulcanization system of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/06C08L23/12C08L3/06C08L89/00C08L83/05C08L91/06C08L97/02C08K13/02C08K5/12C08K5/14C08K5/09C08K3/36C08K3/22C08K5/134
CPCY02P20/52
Inventor 张艳
Owner ANHUI ZHONGMA RUBBER & PLASTIC PROD
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