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A kind of nano superhydrophobic coating, preparation method and coating carrier and application

A super-hydrophobic coating and nanotechnology, applied in coatings, pigmented coatings, paper coatings, etc., can solve the problems of leaching filter paper, incalculable reduction, and reduction in the number of spores.

Active Publication Date: 2018-10-12
NANJING JUSHA MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both sides of the filter paper are permeable, and when the bacterial suspension drips on the filter paper, due to the permeation of the lower layer of the filter paper, some spores will leach out of the filter paper, reducing the number of spores on the filter paper, and the reduction cannot be calculated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw materials and contents of the nanometer super-hydrophobic coating are:

[0027] Silica 5g

[0028] Silicone resin 75g

[0029] Cyclopentane 20g

[0030] Xylylenediamine 3g

[0031] The preparation method of nano superhydrophobic coating is:

[0032] Add 75g of silicone resin to 20g of cyclopentane;

[0033] Stir well;

[0034] In above-mentioned solution, add 5g silicon dioxide nano medium filler;

[0035] Stir for 5h;

[0036] Add 3g of curing agent xylylenediamine and stir evenly;

[0037] A nano-superhydrophobic coating was obtained.

Embodiment 2

[0039] The raw materials and contents of the nanometer super-hydrophobic coating are:

[0040] Aluminum oxide 8g

[0041] Acrylic resin 73g

[0042] Cyclohexane 15g

[0043] The preparation method of nano superhydrophobic coating is:

[0044] Add 73g acrylic resin in 15g cyclohexane;

[0045] Stir well;

[0046] In above-mentioned solution, add 8g silicon dioxide nano medium filler;

[0047] Stir for 10 hours;

[0048] Add 4g of curing agent 2-methylimidazole and stir evenly;

[0049] A nano-superhydrophobic coating was obtained.

Embodiment 3

[0051] According to the nano-superhydrophobic coating prepared in Example 2, take 50g and evenly coat it on 1m 2 on the filter paper carrier, and dry to obtain the nano-hydrophobic coating carrier. After sterilization, it can be used to prepare the bacteria-contaminated carrier of the biological indicator for pressure steam sterilization.

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PUM

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Abstract

The invention relates to a biological indicator carrier and discloses a nano-structured super-hydrophobic coating, a preparation method and a coating carrier and application. The nano-structured super-hydrophobic coating is composed of, by weight, 1-20% of a medium nano-filler, 46-88% of a resin matrix, 10-30% of a solvent and 1-4% of a curing agent. The nano-structured super-hydrophobic coating filter paper carrier is applied to germ spore carriers of a pressure steam sterilization biological indicator, an ethylene oxide biological indicator and a low temperature plasma biological indicator. The nano-structured super-hydrophobic coating carrier's lower layer is super-hydrophobic and will not influence water absorption of the upper layer. A bacteria liquid can be uniformly distributed on the upper layer and will not flow out of the lower layer.

Description

technical field [0001] The invention relates to a biological indicator carrier, in particular to a nanometer super-hydrophobic coating, a preparation method, a coating carrier and an application. Background technique [0002] Biological indicators are the gold standard for sterilization monitoring, directly using the most difficult to kill spores to indicate the sterilization results. There are various forms of biological indicators, including spore suspensions, bacteria-contaminated carriers, self-contained biological indicators, etc. In both the bacteria-contaminated carrier and the self-contained biological indicator, the spores appear in the form of the bacteria-contaminated carrier. [0003] Filter paper is the most commonly used carrier. However, both sides of the filter paper are permeable, and when the bacterial suspension drips on the filter paper, some spores will leach out of the filter paper due to the permeation of the lower layer of the filter paper, resultin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/40D21H19/62D21H19/46D21H19/38D21H19/58A61L2/28
CPCA61L2/28D21H19/385D21H19/40D21H19/46D21H19/58D21H19/62
Inventor 王卫周平乐
Owner NANJING JUSHA MEDICAL TECH
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