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Medical sterilization siloxane coating and preparing method thereof

A technology of siloxane and coatings, applied in the field of medical materials, can solve the problems of poor sterilization and thixotropy, and achieve the effects of good thixotropy, simple preparation method and easy availability of raw materials

Inactive Publication Date: 2016-06-22
SUZHOU BEC BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a non-toxic medical sterilizing siloxane coating with good bactericidal performance and good steam permeability and a preparation method thereof, which solves technical problems such as poor bactericidal properties and thixotropy of the existing medical material coating protection coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Weigh 100 parts of methyltrimethoxysilane, 1 part of isopropanol, 5 parts of acetic acid, 15 parts of dodecyldimethylbenzyl ammonium bromide, and 10 parts of silica gel according to the ratio of parts by mass. 20 parts of silver powder, 20 parts of water, 10 parts of hexamethylenediamine, 5 parts of lead naphthenate, 0.1 part of ammonium persulfate.

[0025] Step 2: Put dodecyldimethylbenzylammonium bromide and water into a reaction kettle equipped with a stirrer and a thermometer, and stir for 30 minutes at a speed of 300 r / min.

[0026] The third step: put the stirred liquid for 10 hours, add methyltrimethoxysilane, isopropanol, acetic acid, heat up to 40°C, then add silica gel, hexamethylenediamine, lead naphthenate, ammonium persulfate and The remaining raw materials are mixed evenly and put into a grinder to grind for 30 minutes, filtered and packed.

[0027] The product has excellent bactericidal performance and is suitable for the coating protection of m...

Embodiment 2

[0029] Step 1: Weigh 100 parts of methyltrimethoxysilane, 5 parts of isopropanol, 25 parts of acetic acid, 35 parts of dodecyldimethylbenzyl ammonium bromide, and 30 parts of silica gel according to the ratio of parts by mass. 40 parts of silver powder, 60 parts of water, 30 parts of hexamethylenediamine, 25 parts of lead naphthenate, 0.5 part of ammonium persulfate.

[0030] Step 2: Put dodecyldimethylbenzylammonium bromide and water into a reaction kettle equipped with a stirrer and a thermometer, and stir for 40min at a speed of 400r / min.

[0031] The third step: put the stirred liquid for 20 hours, add methyltrimethoxysilane, isopropanol, acetic acid, raise the temperature to 60°C, then add silica gel, hexamethylenediamine, lead naphthenate, ammonium persulfate and The remaining raw materials are mixed evenly and put into a grinder to grind for 60 minutes, filtered and packed.

[0032] The product has excellent bactericidal performance and is suitable for coating protecti...

Embodiment 3

[0034]Step 1: Weigh 100 parts of methyltrimethoxysilane, 2 parts of isopropanol, 10 parts of acetic acid, 20 parts of dodecyldimethylbenzyl ammonium bromide, and 15 parts of silica gel according to the ratio of parts by mass. 25 parts of silver powder, 30 parts of water, 15 parts of hexamethylenediamine, 10 parts of lead naphthenate, 0.2 parts of ammonium persulfate.

[0035] Step 2: Put dodecyldimethylbenzylammonium bromide and water into a reaction kettle equipped with a stirrer and a thermometer, and stir for 30 minutes at a speed of 300 r / min.

[0036] The third step: put the stirred liquid for 10 hours, add methyltrimethoxysilane, isopropanol, acetic acid, heat up to 40°C, then add silica gel, hexamethylenediamine, lead naphthenate, ammonium persulfate and The remaining raw materials are mixed evenly and put into a grinder to grind for 30 minutes, filtered and packed.

[0037] The product has excellent bactericidal performance and is suitable for the coating and protecti...

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Abstract

The invention discloses a medical sterilization siloxane coating and a preparing method thereof. Raw materials include methyltrimethoxysilane, isopropanol, acetic acid, dodecyl dimethyl benzyl ammonium bromide, silica gel, aluminum powder, water, hexamethylenediamine, lead naphthenate and ammonium persulfate. The medical sterilization siloxane coating is superior in sterilization performance and suitable for coating protection of medical materials, viscosity is 25-35 s, the adhesive force is 1-2 level, flexibility is 1-2 mm, the coating is free of toxin and is good in thixotropic property, the surface drying time is 1-2 h, the solid drying time is 12-16 h, the 45 degree gloss is 85-95%, the water resisting property is 4-8 h without change, the Shore hardness is 30-60, and the elastic elongation is 400-600%.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a medical bactericidal silicone coating and a preparation method thereof. Background technique [0002] Anti-mold and bactericidal coatings are coatings that prevent the growth of mold. Adding a small amount of sterilizing agent or an anti-agent that can inhibit the growth of mold in the normal temperature drying paint mainly composed of emulsified paint, lacquer, vinyl resin paint, oily paint, aldehyde resin paint, alkyd resin paint, etc. made coatings. After the coating is cured and formed into a film, the antifungal agent can slowly seep into the coating film to prevent mold production for a long time, thereby protecting the coated object from mildew corrosion. The non-toxic or low-toxic antifungal agents used before the mouth are harmful to the human body are mainly; Organotin compounds such as tin, copper naphthenate, copper pentachlorophenolate, organocopper co...

Claims

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Application Information

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IPC IPC(8): C09D183/06C09D7/12
CPCC09D4/00C08L2203/02C09D7/61C09D7/63C08G77/18
Inventor 徐勤霞李苏杨
Owner SUZHOU BEC BIOLOGICAL TECH
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