Rustproof lubricating agent

A technology of anti-rust lubricant and anti-corrosion agent, which is applied in the direction of lubricating composition and petroleum industry, etc. It can solve the problems of unsuitable automatic cleaning machines, etc., and achieve the effect of preventing corrosion, preventing redox reaction and prolonging the service life

Inactive Publication Date: 2013-05-08
3M INNOVATIVE PROPERTIES CO
6 Cites 27 Cited by

AI-Extracted Technical Summary

Problems solved by technology

US20100048759 provides a lubricant for medical devices, which is a water-soluble lubricant containing glycerin, polyethylene glycol and water, a...
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Method used

[0048] The anti-rust lubricant may also contain a thickener, which can help improve the fluidity of the anti-rust lubricant and play a wetting effect. Generally, there is no special restriction on the choice of thickener, which may include one or more of polyvinyl alcohol, water-soluble cellulose, derivatives of water-soluble cellulose, polyvinylpyrrolidone, and the derivative of water-soluble cellulose Substances include but are not limited to carboxyalkylated or hydroxyalkylated celluloses, such as carboxymethylcellulose, carboxyethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxy Methyl propyl cellulose etc. Based on the total weight of the anti-rust lubricant, in some embodiments the weight percentage of the thickener in the anti-rust lubricant is 0.01% to 2%,...
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Abstract

The invention provides a rustproof lubricating agent. Based on the total weight of the rustproof lubricating agent, the rustproof lubricating agent comprises the following components: (a) 5%-45% of base oil, wherein the base oil is one or more selected from polyaleneglycol, fatty acid glyceride and propanetriol; (b) 0.1%-15% of corrosion inhibitor, wherein the corrosion inhibitor can be one or more selected from organic polycarboxylic acid, organic polycarboxylate and alkylamine; (c) 0.05%-10% of preservative, wherein the preservative can be one or more selected from benzoic acid type preservative and isothiazolizone type preservative; and (d) 30%-90% of water.

Application Domain

Technology Topic

Corrosion inhibitorFatty acid glycerol esters +4

Image

  • Rustproof lubricating agent
  • Rustproof lubricating agent
  • Rustproof lubricating agent

Examples

  • Experimental program(10)
  • Effect test(1)

Example Embodiment

[0051] Example
[0052] A. Bubble level test
[0053] Since lubricants are to be used in automatic cleaning machines, it is preferable to choose a formulation with low foaming ingredients. Use the foam level test (STM 100) to carry out the base oil screening test.
[0054] 1) Dilute 5% oil solution with distilled water at 25°C or 60°C at 1:200;
[0055] 2) Put the diluted solution into the beaker and record the initial height of the solution (record the volume value marked in ml as the height, and the appropriate final volume is 500 ml);
[0056] 3) Mix the solution in a blender (Philips Comfort) at high speed for 20 seconds;
[0057] 4) Stop stirring and record the height of the solution foam at 0, 10, 20 and 30 seconds respectively;
[0058] 5) Calculate the height of the foam:
[0059] Foam height = total height at the time of recording-initial solution height.
[0060] The preferred base oil is that the foam height is less than 50ml in 20 seconds.
[0061] Table 1 shows the base oils evaluated in the present invention. Ruhof lubricant is a commercially available medical device lubricant as a reference.
[0062] Table 1 Base oils used in the foam level test
[0063]
[0064] Since the lubricant is added at a temperature higher than 60°C during the operation of the automatic cleaning machine, first test the foam level of different oils at 60°C. figure 1 The result of the foam level test at 60°C is shown. It can be seen from the figure that the foam height of samples 2 to 8 is less than 50ml in 20 seconds.
[0065] In the operation of the automatic washing machine, it also includes a pre-rinsing step. Since this pre-rinsing step is performed at room temperature (25°C), it is also necessary to control the foam level in the pre-rinsing step at 25°C. figure 2 The test results are shown at 25°C. It can be seen from the figure that the foam height of samples 2, 3 and 8 is less than 50ml in 20 seconds.
[0066] Based on the above test, it can be seen that the more preferred samples used as the base oil in the present invention are UCON 50-HB-5100, UCON 50-HB-660 and glycerin.
[0067] B. Examples and Comparative Examples
[0068] All contents and percentages are based on weight.
[0069] According to the formula in the table below, mix the ingredients to prepare an anti-rust lubricant. The raw materials used in the examples are all commercially available. The manufacturer’s chemicals are not specifically identified as commercially available conventional chemical raw materials.

Example Embodiment

[0071] Example 1:
[0072]

Example Embodiment

[0073] Example 2:
[0074]
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PUM

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Description & Claims & Application Information

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