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Medical rubber surface treatment technology

A rubber surface and technology technology, applied in the direction of coating, can solve the problems of product adhesion, inability to oil stains, and impurities to be cleaned, and achieve the effect of improving the degree of lubrication, unchanged geometric dimensions, and strong lubricity

Inactive Publication Date: 2018-09-04
SHANDONG JIHAI MEDICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot clean up the oil and impurities in the production process. After the product is cleaned or dried at high temperature, the product will stick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Preparation of cleaning solution

[0039] (1) Alkaline solution: add 0.5L sodium hydroxide standard solution to 500L purified water.

[0040] (2) Acidic solution: add 0.5L glacial acetic acid standard solution to 500L purified water.

[0041] (3) Siliconization solution: add 0.01L of medical simethicone to 500L of purified water.

[0042] (4) Chlorinated solution: add 0.5L hydrochloric acid standard solution and 0.5L sodium hypochlorite standard solution to 500L purified water.

[0043] 2. Surface treatment of medical rubber products

[0044] (1) Medical rubber products are placed in alkaline sodium hydroxide solution, and subjected to alkaline washing for 5 minutes at a temperature of 70°C to remove surface oil and impurities;

[0045] (2) Medical rubber products are pickled in an acidic glacial acetic acid solution until the pH of the surface solution of the medical rubber products is 7; pickling for 5 minutes, and the pickling temperature is 70°C;

[0046] (3)...

Embodiment 2

[0051] 1. Preparation of cleaning solution

[0052] (1) Alkaline solution: add 2L sodium hydroxide standard solution to 500L purified water.

[0053] (2) Acidic solution: add 2L glacial acetic acid standard solution to 500L purified water.

[0054] (3) Siliconization solution: Add 0.1 L of medical dimethyl silicone oil to 500 L of purified water.

[0055] (4) Chlorinated solution: add 2L hydrochloric acid standard solution and 2L sodium hypochlorite standard solution to 500L purified water.

[0056] 2. Surface treatment of medical rubber products

[0057] (1) Medical rubber products are placed in an alkaline sodium hydroxide solution and subjected to alkaline washing for 5 minutes at a temperature of 90°C to remove surface oil and impurities;

[0058] (2) The medical rubber products are pickled in an acidic glacial acetic acid solution until the pH of the surface solution of the medical rubber products is 7; the pickling time is 5 minutes, and the pickling temperature is 90...

Embodiment 3

[0064] 1. Preparation of cleaning solution

[0065] (1) Alkaline sodium hydroxide solution: add 1L sodium hydroxide standard solution to 500L purified water.

[0066] (2) Acidic glacial acetic acid solution: add 1.5L glacial acetic acid standard solution to 500L purified water.

[0067] (3) Siliconization solution: add 0.05L medical dimethyl silicone oil to 500L purified water.

[0068] (4) Chlorinated solution: add 1L hydrochloric acid standard solution and 1L sodium hypochlorite standard solution to 500L purified water.

[0069] 2. Surface treatment of medical rubber products

[0070] (1) Medical rubber products are placed in alkaline sodium hydroxide solution, and subjected to alkaline washing for 10 minutes at a temperature of 80°C to remove surface oil and impurities;

[0071] (2) The medical rubber products are pickled in acidic glacial acetic acid solution until the pH of the surface solution of the medical rubber products is 7; the pickling time is 10 minutes, and the...

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Abstract

The invention belongs to the technical field of surface treatment, and particularly relates to a medical rubber surface treatment technology. A medical rubber product is alkaline washed in an alkalinesolution to remove the surface oil stains and impurities; the medical rubber product is acid pickled in an acid solution until the pH of the medical rubber product surface solution is 7; the medicalrubber product is silicified by adopting a silicified solution; the chloride solution is used for performing the surface chlorination treatment for the medical rubber product; and the syringe water isused for cleaning and drying the medical rubber product. The friction coefficient of the medical rubber product treated by utilizing the medical rubber surface treatment technology is reduced by 50 percent or more, the wear resistance is improved by 50 percent or more, the service life can be greatly prolonged, and the lubrication of the rubber surface can be greatly improved; and the surface ismore exquisite, the physical and mechanical performance and geometric size are not changed; and the lubricating performance, the stability and the bio-compatibility are higher.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, and in particular relates to a medical rubber surface treatment technology. Background technique [0002] As medical rubber, with the development of automation equipment, due to its own characteristics, medical rubber products cannot add substances harmful to biochemical properties in the formula design, and require excellent smoothness on the surface of the product to ensure that the product is assembled and There is no adhesion between the products during use, the assembly is smooth during the automatic assembly process, the surface is smooth and free from debris, and it has a low coefficient of friction during use. [0003] The existing rubber surface treatment technologies mainly include the following types: (1) cleaning with purified water, and then drying, and no cleaning agent is added during the cleaning process. Adopting this method cannot clean up the oil stains and impuritie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/14C08J7/12C08J7/04C09D183/04C08L21/00
CPCC08J7/0427C08J7/12C08J7/126C08J7/14C08J2321/00C08J2483/04
Inventor 李峰
Owner SHANDONG JIHAI MEDICAL TECH
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