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Nano antibacterial anticorrosion hydrosol coating composition

A coating composition, anti-bacterial and anti-corrosion technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., can solve problems such as inability to meet anti-corrosion requirements, and achieve excellent anti-corrosion ability and good anti-bacterial effect

Active Publication Date: 2021-09-07
姚下银
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the curing temperature is lower than 450°F (232°C) and the neutral salt spray time is less than or equal to 72h when the curing temperature is lower than 450°F (232°C), it is still unable to meet the anti-corrosion requirements of customers.

Method used

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  • Nano antibacterial anticorrosion hydrosol coating composition
  • Nano antibacterial anticorrosion hydrosol coating composition
  • Nano antibacterial anticorrosion hydrosol coating composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] This embodiment relates to a nano antibacterial anticorrosion hydrosol coating composition, and its composition and dosage are as follows in Table 1:

[0059] Table 1

[0060]

[0061]

[0062] Remark: 1 Huifu Silicon Material Co., Ltd. nano-silica sol, the content of elemental silicon is 5%, the particle size D50 is 500nm,

[0063] 2 Nitro m-xylene zinc purchased from Bailingwei Company, particle size D50 is 5um,

[0064] 3 The flaky metal zinc powder of Aika company, the particle size D50 is 13um,

[0065] 4 Aika's flake metal aluminum powder, the particle size D50 is 15um,

[0066] 5 The zinc phosphate powder of Haibo Chemical has a particle size D50 of 6um.

[0067] The performance test results are shown in Table 2:

[0068] Table 2

[0069] project Remark Composition 1 Composition 2 Composition 3 baking temperature 100℃ 40min 40min 40min Dry film thickness Dry film thickness meter test 7-10μm 7-10μm 7-10μm ...

Embodiment 2

[0071] This embodiment relates to a nano antibacterial anticorrosion hydrosol coating composition, and its composition and dosage are as follows in Table 3:

[0072] table 3

[0073]

[0074]

[0075] The performance test results are shown in Table 4:

[0076] Table 4

[0077] project Remark Composition 4 Composition 5 Composition 6 baking temperature 100℃ 40min 40min 40min Dry film thickness Dry film thickness meter test 5-7μm 5-7μm 5-7μm Bag adhesion GB / T9286-1998 level 0 level 0 level 0 Antibacterial ability How long does it take to grow bacteria after storage >12 months >12 months >12 months Neutral salt spray test GB / T1771-2007 1416h 1080h 1104h

Embodiment 3

[0079] This embodiment relates to a nano antibacterial anticorrosion hydrosol coating composition, and its composition and dosage are as follows in Table 5:

[0080] table 5

[0081]

[0082]

[0083] The test results are shown in Table 6

[0084] Table 6

[0085]

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Abstract

The invention discloses a nano antibacterial anticorrosion hydrosol coating composition; in terms of mass percentage accounting for the total mass of the composition, it comprises: nano silica sol: the proportion of elemental silicon in the sol to the total composition is 0.1- 5%, granular metal or mixture of granular metals: 5‑40%, zinc nitroisophthalate: 0.01‑2%, other binders: 3‑30%, water-soluble organic solvents: 5‑40%, to Ionized water: 5‑40%. In the system of the present invention, through the catalysis of zinc nitroisophthalate and the effect of inhibiting corrosion, the nano-antibacterial and anti-corrosion hydrosol coating composition is cured at a lower temperature to form a film and after curing at a low temperature, the crosslinking density of the coating Higher, and cures at low temperature and has excellent corrosion resistance.

Description

technical field [0001] The present invention relates to the technical field of coatings, in particular to a nano-antibacterial and anti-corrosion hydrosol coating composition; especially to a coating with a dry film thickness of 7-10 μm after baking and curing at 100°C, and a neutral salt spray test> 1000h nanometer antibacterial anticorrosion hydrosol coating composition. Background technique [0002] At present, the recommended baking and curing temperature of environmentally friendly nano-water-based anti-corrosion compositions on the market is above 300°C, so that the cured coating can meet the customer's minimum anti-corrosion requirements (dry film thickness of the coating is 7-10 μm, neutral salt spray test) >1000h). However, after baking at 100°C, the environmentally friendly nano-water-based anti-corrosion composition on the market can perform a neutral salt spray test of a 7-10 μm dry film thickness coating under 72 hours, which is far below the 1000 hours r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/04C09D1/00C09D5/10C09D5/14C09D7/63
CPCC09D1/00C09D1/04C09D5/103C09D5/106C09D5/14C09D7/63
Inventor 徐玲
Owner 姚下银
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