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Chromium-free self-lubricating passivation solution and preparation method thereof

A self-lubricating and passivating liquid technology, used in the fields of metallurgy and chemistry, it can solve problems such as unsatisfactory, low friction of galvanized sheet, anti-oxidation, anti-wear, extreme pressure, corrosion resistance and fingerprint resistance.

Inactive Publication Date: 2015-06-10
ANHUI UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the galvanized sheet coated with this chromium-free passivation solution is still unsatisfactory in terms of low friction, anti-oxidation, anti-wear extreme pressure, corrosion resistance, anti-fingerprint and other mechanical properties.

Method used

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  • Chromium-free self-lubricating passivation solution and preparation method thereof
  • Chromium-free self-lubricating passivation solution and preparation method thereof
  • Chromium-free self-lubricating passivation solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Component Mass parts

[0038] Water-based epoxy resin 10%

[0039] Curing agent 1%

[0040] Silane coupling agent KH550 10%

[0041] Ce(NO 3 ) 3 1%

[0042] Polyethylene wax 2%

[0043] Oxymolybdenum Dialkyl Dithiophosphate 2%

[0044] Nano silica 1%

[0045] Attapulgite 1%

[0046] Ethanol 12%

[0047] water 60%

[0048] First weigh 1g of curing agent and add it to 10g of water-based epoxy resin, and stir on a magnetic stirrer for 2h, weigh 1g of Ce(NO 3 ) 3 Add to 10g of silane coupling agent KH550, and add 2~3 drops of hydrogen peroxide, put it on a magnetic stirrer and stir for 2-3h, add the above-mentioned stirred water-based epoxy resin and silane coupling agent into 60g of water; Weigh 2g of polyethylene wax and 2g of dialkyldithiooxymolybdenum and add it to 12g of ethanol for ultrasonic dispersion for 30min, stir on a mechanical stirrer for 60min, and add 1g of attapulgite and 1g of ...

Embodiment 2

[0050] Component Mass parts

[0051] Water-based epoxy resin 10%

[0052] Curing agent 1%

[0053] Silane coupling agent KH792 15%

[0054] Ce(NO 3 ) 3 0.5%

[0055] Sodium molybdate 0.5%

[0056] Polyethylene wax 4%

[0057] Oxymolybdenum Dialkyl Dithiophosphate 2%

[0058] Nano silica 1%

[0059] Attapulgite 1%

[0060] Ethanol 10%

[0061] water 55%

[0062] Take by weighing 1g of curing agent and join in the water-based epoxy resin of 10g, and be placed on the magnetic stirrer and stir for 2h, take by weighing 0.5g of Ce(NO 3 ) 3 Add 0.5g of sodium molybdate to 15g of silane coupling agent 792, add 1~2 drops of hydrogen peroxide, stir on a magnetic stirrer for 2-3h, mix the above-mentioned stirred water-based epoxy resin and silane coupling agent Add KH792 to 55g of water and stir; weigh 4g of polyethylene wax and 2g of dialkyldithiooxymolybdenum, add it to 10g of ethanol and ultrasonicall...

Embodiment 3

[0064] Component Mass parts

[0065] Water-based epoxy resin 10%

[0066] Curing agent 1%

[0067] Silane coupling agent KH902 10%

[0068] Ce(NO 3 ) 3 0.5%

[0069] Sodium molybdate 0.5%

[0070] Polyethylene wax 2%

[0071] Molybdenum disulfide 2%

[0072] Oxymolybdenum Dialkyl Dithiophosphate 2%

[0073] Nano silica 1%

[0074] Attapulgite 1%

[0075] Ethanol 10%

[0076] water 60%

[0077] The curing agent that takes by weighing 1g joins in the water-based epoxy resin of 10g, stirs 2h on the magnetic stirrer, then the Ce(NO of 0.5g 3 ) 3Add 0.5g of sodium molybdate to 10g of silane coupling agent 902, and add 1~2 drops of hydrogen peroxide, stir on a magnetic stirrer for 2-3h, mix the above-mentioned stirred water-based epoxy resin and silane coupling agent Add KH902 to 60g of water; add 2g of polyethylene wax, 2g of molybdenum disulfide and 2g of dialkyldithiooxymolybdenum to 10g of eth...

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Abstract

The invention discloses a chromium-free self-lubricating passivation solution and a preparation method thereof. The chromium-free self-lubricating passivation solution is formed by compounding the following compositions in percentage by weight: 8%-12% of water-borne epoxy resin, 0.5%-1% of curing agent, 10%-15% of silane coupling agent, 0.5%-1% of inorganic component, 2%-4% of solid lubricant, 1%-2% of friction modifier, 0.5%-1% of anti-wear agent, 0.5%-1% of anti-sinking agent, and 60%-75% of diluting agent. The inorganic component is one or a combination of Ce(NO3)3 and sodium molybdate, the solid lubricant is one or a combination of two or more of polytetrafluoroethylene, polyethylene wax, polyethylene, molybdenum disulfide and graphite, the friction modifier is self-synthesized molybdenum dialkyldithiophosphate, the anti-wear agent is one or a combination of nanosilicon dioxide and nano aluminum oxide, the anti-sinking agent is attapulgite, and the diluting agent is a mixture of water and ethanol. A plate product coated with passivation solution has the advantages of being pollution-free, low-friction, anti-oxidized, anti-wear and extreme pressure-resistant, corrosion-resistant, finger-resistant, having good mechanical performance and the like, and the passivation solution can be directly coated on the surfaces of a zinc-plated plate and parts of certain mechanical equipment for use.

Description

technical field [0001] The invention relates to a chromium-free self-lubricating passivation solution and a preparation method thereof, which can be directly coated on the surfaces of galvanized sheets and parts of mechanical equipment, and belongs to the fields of chemistry and metallurgy. Background technique [0002] Self-lubricating coated steel plate is an organic coated steel plate with excellent self-lubricating properties, friction resistance, corrosion resistance, fingerprint resistance, processability, weldability and paintability. Due to its excellent performance, advanced production technology and process plan, and no need to apply anti-rust oil to prevent steel plates from rusting during transportation and storage, the product can simplify the packaging process and reduce product costs, so it is favored by related fields such as home appliances, automobiles, construction and containers. s concern. Self-lubricating coated steel sheets mainly use galvanized sheet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/68
Inventor 张千峰张振海汪亚楠田飘飘
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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