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Medical waterproof anti-rusting coating and preparation method thereof

An anti-rust coating and medical technology, applied in the field of medical materials, can solve the problems of slow drying and resistance to salt spray, etc., and achieve the effect of simple raw materials, easy access to raw materials, and simple preparation methods

Inactive Publication Date: 2015-09-02
SUZHOU BEC BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a medical waterproof and antirust coating with fast drying and good salt resistance and a preparation method thereof, which solves technical problems such as slow drying and salt spray resistance of existing medical materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1: Weigh 100 parts of water, 10 parts of epoxy resin, 15 parts of EPDM rubber, 5 parts of diphenyl ether resin, 30 parts of polyzinc oxide resin, 5 parts of phosphoric acid, and dichromic acid according to the ratio of parts by mass. Potassium 1 part, ammonium molybdate 0.5 part, iron oxide red 20 parts, zinc oxide 4 parts.

[0021] Step 2: Put water, epoxy resin, EPDM rubber, diphenyl ether resin and phosphoric acid into the reaction kettle, heat to 45°C, and stir at 200r / min for 60min.

[0022] Step 3: Let the stirred liquid stand for 15 minutes, add polyzinc oxide resin, potassium dichromate, ammonium molybdate, iron oxide red and zinc oxide, mix well at 65°C, put it into a grinder for 4 hours, and filter Package.

[0023] Used for anti-rust and anti-corrosion of medical appliances, the appearance of the coating film is smooth and bright, the viscosity is 60s; the adhesion is first-class, the salt spray resistance is 10d without abnormality, the water resistanc...

Embodiment 2

[0025] Step 1: Weigh 100 parts of water, 30 parts of epoxy resin, 35 parts of EPDM rubber, 25 parts of diphenyl ether resin, 50 parts of polyzinc oxide resin, 25 parts of phosphoric acid, dichromic acid Potassium 5 parts, ammonium molybdate 4.5 parts, iron oxide red 40 parts, zinc oxide 8 parts.

[0026] Step 2: Put water, epoxy resin, EPDM rubber, diphenyl ether resin and phosphoric acid into the reaction kettle, heat to 65°C, and stir at 400r / min for 80min.

[0027] Step 3: Let the stirred liquid stand for 35 minutes, add polyzinc oxide resin, potassium dichromate, ammonium molybdate, iron oxide red and zinc oxide, mix evenly at 85°C, put it into a grinder for 6 hours, and filter Package.

[0028] Used for anti-rust and anti-corrosion of medical appliances, the appearance of the coating film is smooth and bright, and the viscosity is 65s; the adhesion is first-class, the salt spray resistance is 15d without abnormality, the water resistance is 30d without blistering or fall...

Embodiment 3

[0030] Step 1: Weigh 100 parts of water, 15 parts of epoxy resin, 20 parts of EPDM rubber, 10 parts of diphenyl ether resin, 35 parts of polyzinc oxide resin, 10 parts of phosphoric acid, and dichromic acid according to the ratio of parts by mass. Potassium 2 parts, ammonium molybdate 1.5 parts, iron oxide red 25 parts, zinc oxide 5 parts.

[0031] Step 2: Put water, epoxy resin, EPDM rubber, diphenyl ether resin and phosphoric acid into the reaction kettle, heat to 45°C, and stir at 200r / min for 60min.

[0032] Step 3: Let the stirred liquid stand for 15 minutes, add polyzinc oxide resin, potassium dichromate, ammonium molybdate, iron oxide red and zinc oxide, mix well at 65°C, put it into a grinder for 4 hours, and filter Package.

[0033] Used for anti-rust and anti-corrosion of medical appliances, the appearance of the coating film is smooth and bright, the viscosity is 70s; the adhesion is first-class, the salt spray resistance is 20 days without abnormality, the water r...

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Abstract

The invention discloses a medical waterproof anti-rusting coating and a preparation method thereof. The medical waterproof anti-rusting coating comprises the following raw materials: water, epoxy resin, an ethylene propylene diene monomer, diphenyl ether resin, poly zinc oxide resin, phosphoric acid, potassium dichromate, ammonium molybdate, iron oxide red and zinc oxide. The medical waterproof anti-rusting coating can prevent rusting or corrosion when being used on medical instruments, a coating film is smooth and bright in appearance, the viscosity of the coating is 60-80s, first-class adhesion property can be achieved, the coating is resistant to salt mist, is free of abnormity within 10-30 days, resistant to water for 20-60 days, free of bubble or peeling off and resistant to salt and free of abnormity within 30-50 days, the surface drying time is 1-4 hours, the actual drying time is 18-22 hours, the coating is simple in preparation method and can be widely produced to replace conventional materials constantly, and the raw materials can be simply and easily obtained.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a medical waterproof and antirust coating and a preparation method thereof. Background technique [0002] Coatings that protect metal surfaces from chemical or electrochemical corrosion from the atmosphere, sea water, etc. Coating anti-rust coatings on the metal surface can effectively prevent the direct invasion of various corrosive substances in the atmosphere, so as to maximize the extension of the service life of the metal. It can be divided into two categories: physical and chemical antirust paint. The former relies on the proper coordination of pigments and paints to form a dense paint film to prevent the intrusion of corrosive substances, such as iron red, aluminum powder, graphite antirust paint, etc.; the latter relies on the chemical antirust effect of antirust pigments, such as red Dan, zinc yellow antirust paint, etc. Used for rust prevention of bridg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D163/00C09D123/16C09D171/12C09D7/12C09D5/08
Inventor 徐勤霞李苏杨
Owner SUZHOU BEC BIOLOGICAL TECH
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