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Preparation method of surface coating for medical instruments

A medical device and surface coating technology, which is applied in the field of preparation of medical device surface coatings, can solve problems such as surface corrosion, shorten service life, and affect the continued use of medical devices, so as to achieve small bonding thermal stress, reduce interfacial tension, and ensure performance effect

Inactive Publication Date: 2020-04-21
张旦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the medical devices or their key components are exposed to the air for a long time. If the surface is not coated with a layer of paint, the surface is likely to be corroded due to long-term erosion by humid air, which not only affects the medical equipment. Continued use of the device, but also a shortened lifespan

Method used

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  • Preparation method of surface coating for medical instruments

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Comparison scheme
Effect test

Embodiment 1

[0034] A kind of preparation method of medical device surface coating of the present embodiment, comprises the following steps:

[0035] S1. Weigh each raw material of the coating, and place each solid raw material in a grinder for grinding, and then pass through a 150-mesh sieve to obtain a fine powder of each solid raw material; save and set aside;

[0036] The coating is composed of the following raw material components (parts by weight): 80 parts of modified water-based epoxy resin emulsion, 5 parts of zirconium phosphate, 8 parts of ultramarine blue, 3 parts of polyhexamethylene guanidine, 4.0 parts of barium petroleum sulfonate 4.2 parts of lanolin magnesium soap, 3.8 parts of dodecenyl succinic acid, 4.5 parts of glass flakes, 10 parts of vinyl bis stearamide, 2.5 parts of glyceryl monostearate, 1.8 parts of emulsifier, 1.4 parts of dispersant Parts, 1.5 parts of film-forming aids, 0.8 parts of leveling agents, 1.2 parts of defoamers, 1.0 parts of surfactants and 20 par...

Embodiment 2

[0052] A kind of preparation method of medical device surface coating of the present embodiment, comprises the following steps:

[0053] S1. Weigh each raw material of the coating, and place each solid raw material in a grinder for grinding, and then pass through a 180-mesh sieve to obtain a fine powder of each solid raw material; save and set aside;

[0054] The coating is composed of the following raw material components (parts by weight): 75 parts of the coating modified water-based epoxy resin emulsion, 6 parts of zirconium phosphate, 7 parts of ultramarine blue, 5 parts of polyhexamethylene guanidine, petroleum sulfonic acid 3.6 parts of barium, 4.4 parts of lanolin magnesium soap, 3.5 parts of dodecenyl succinic acid, 4.8 parts of glass flakes, 9 parts of vinyl bis stearamide, 2.8 parts of glyceryl monostearate, 1.6 parts of emulsifier, dispersing 1.6 parts of agent, 1.2 parts of film-forming aid, 1.0 part of leveling agent, 0.9 part of defoamer, 1.2 parts of surfactant ...

Embodiment 3

[0070] A kind of preparation method of medical device surface coating of the present embodiment, comprises the following steps:

[0071] S1. Weigh each raw material of the coating, and place each solid raw material in a grinder for grinding, and then pass through a 180-mesh sieve to obtain a fine powder of each solid raw material; save and set aside;

[0072] The coating is composed of the following raw material components (parts by weight): 90 parts of modified water-based epoxy resin emulsion, 8 parts of zirconium phosphate, 10 parts of ultramarine blue, 4 parts of polyhexamethylene guanidine, 4.6 parts of barium petroleum sulfonate 4.5 parts of lanolin magnesium soap, 4.2 parts of dodecenyl succinic acid, 5.0 parts of glass flakes, 12 parts of vinyl bis stearamide, 3.0 parts of glyceryl monostearate, 2.3 parts of emulsifier, 1.8 parts of dispersant Parts, 1.8 parts of film-forming aids, 1.2 parts of leveling agents, 1.6 parts of defoamers, 1.4 parts of surfactants and 25 pa...

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Abstract

The invention relates to the field of coatings, in particular to a preparation method of a surface coating for medical instruments. The preparation method comprises the following steps: S1, weighing various raw materials of the coating; S2, adding a modified waterborne epoxy resin emulsion into a reaction kettle, setting the temperature of the reaction kettle to be 80 DEG C, and then adding a surfactant, a dispersing agent and an emulsifying agent into the reaction kettle; S3, measuring the viscosity value of the mixed component obtained in the step S2 through a Ford cup No. 4 measurement method; S4, filtering a crude coating product obtained in the step S3 by using a fine-mesh filter screen; and S5, detecting various physical and chemical properties of the coating obtained in the step S4.The coating prepared by the invention has excellent ageing resistance, rust resistance and wear resistance; in addition, the thermal expansion coefficient and the bonding thermal stress of the coating are relatively small, so the peeling phenomenon of the coating due to heating is remarkably improved; and the acid resistance, alkali resistance and water resistance of the coating are obviously improved through the cooperative use of ultramarine and zirconium phosphate.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a method for preparing surface coatings for medical devices. Background technique [0002] Medical devices refer to instruments, equipment, utensils, in vitro diagnostic reagents and calibrators, materials, and other similar or related items that are directly or indirectly used on the human body, including required computer software. The effect is mainly obtained through physical methods, not through pharmacological, immunological or metabolic methods, or although these methods are involved, they only play an auxiliary role. The purpose is diagnosis, prevention, monitoring, treatment or mitigation of disease; diagnosis, monitoring, treatment, mitigation or functional compensation of injury. [0003] Most of the medical devices or their key components are exposed to the air for a long time. If the surface is not coated with a layer of paint, the surface is likely to be corroded due to lon...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/63C09D7/61C09D7/65C08G59/14C08G59/16
CPCC08G59/1438C08G59/1444C08G59/1455C08K2003/328C08L2201/08C09D5/08C09D7/61C09D7/63C09D7/65C09D7/70C09D163/00C08L79/00C08K13/04C08K7/00C08K3/40C08K5/20C08K3/32C08K5/092C08K5/42
Inventor 不公告发明人
Owner 张旦