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Preparation method for environment-friendly corrosion-free wax-removing cleaning compound used for stainless steel

A non-corrosion, stainless steel technology, applied in the field of wax removal cleaning agent preparation, can solve the problems of low wax removal efficiency, corrosion of workpiece base material, poor decontamination ability, etc., achieve high wax removal efficiency, simple preparation steps, wax removal The effect of improving efficiency

Inactive Publication Date: 2017-06-16
孙祎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the disadvantages of low wax removal efficiency and poor decontamination ability of the current wax removal cleaning agent, and corrosion and oxidation on the base material of the workpiece, which limit the scope of application, a soybean egg cleaning agent is provided. Phospholipids and rice starch are prepared as emulsifiers, which are combined with sodium cocoate prepared from coconut oil to obtain an environmentally friendly and non-corrosive stainless steel wax removal cleaning agent; in the present invention, soybean lecithin is firstly used to modify the hydrophobicity of rice starch, and after modification The rice starch is hydrolyzed by sulfuric acid solution to obtain natural emulsifier, and then coconut oil and sulfur trioxide gas are used to prepare sodium cocoate, which is mixed with natural emulsifier, fatty alcohol polyoxyethylene ether and other substances to obtain stainless steel wax removal Cleaning agent, which effectively solves the problems of low wax removal efficiency and poor decontamination ability of traditional wax removal cleaners

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] First, weigh 35g of soybean lecithin and 80mL of deionized water, add them to the reactor in turn, raise the temperature to 70℃, keep stirring at 300r / min for 1h, stir and let stand for stratification, remove the lower water phase, and collect the upper oil phase , Put it into a three-necked flask, and add 3g rice starch to the three-necked flask, then put the three-necked flask into a water bath, heat up to 40℃, stir at 60r / min for 30min; after the above-mentioned stirring is completed, add Add 60mL of deionized water to 70℃, stir for 1min, stir and transfer to ice water at 0℃, cool for 30min, put it in a centrifuge, centrifuge at 5000r / min to obtain a precipitate, freeze-dry it, Dry matter; Weigh 40g of the above dry matter and mix it with 85% sulfuric acid solution at a mass ratio of 1:10. Stir at 50°C for 80h, then suction filter to obtain a filter residue, wash with deionized water to neutral, and wash After drying, the natural emulsifier is obtained for use; then m...

example 2

[0022] First, weigh 40g of soybean lecithin and 90mL of deionized water, add them to the reactor in turn, heat up to 73°C, heat and stir at 350r / min for 2h, after stirring, let stand for stratification, remove the lower water phase, and collect the upper oil phase , Put it into a three-necked flask, and add 4g rice starch to the three-necked flask, then put the three-necked flask into a water bath, heat up to 43℃, stir at 70r / min for 40min; after the above-mentioned stirring is completed, add Add 65mL of deionized water to 70℃, stir for 2min, stir, transfer into ice water at 3℃, cool for 35min, put it in a centrifuge, centrifuge at 5500r / min to obtain a precipitate, freeze-dry it, Dry matter; Weigh 50g of the above dry matter and mix it with 85% sulfuric acid solution at a mass ratio of 1:10, stir at 55°C for 90h, and then suction filter to obtain a filter residue, wash with deionized water to neutral, and wash After drying, the natural emulsifier is obtained for use; then meas...

example 3

[0025] First, weigh 45g of soybean lecithin and 100mL of deionized water, add them to the reactor in turn, increase the temperature to 75℃, keep stirring at 400r / min for 2h, stir and let stand for stratification, remove the lower water phase, and collect the upper oil phase , Put it into a three-necked flask, and add 4g rice starch to the three-necked flask, then put the three-necked flask into a water bath, heat up to 45℃, stir at 80r / min for 50min; after the above-mentioned stirring is completed, add Add 70 mL of deionized water to 70 ℃, stir for 3 min, stir, transfer to 5 ℃ ice water, cool for 40 min, then put it in a centrifuge, centrifuge at 6000r / min speed to separate the precipitate, freeze-dry, get Dry matter; Weigh 60g of the above dry matter and mix it with 85% sulfuric acid solution at a mass ratio of 1:10, stir at 60°C for 100h, and then suction filter to obtain a filter residue, wash with deionized water to neutral, and wash After drying, the natural emulsifier is ...

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PUM

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Abstract

The invention discloses a preparation method for an environment-friendly corrosion-free wax-removing cleaning compound used for stainless steel, belonging to the field of preparation technology for wax-removing cleaning compound. The method comprises the following steps: subjecting rice starch to hydrophobic modification with soybean lecithin; hydrolyzing the modified rice starch with a sulfuric acid solution so as to obtain a natural emulsifier; preparing sodium cocoate from coconut oil and sulfur trioxide gas; and then mixing the sodium cocoate with the natural emulsifier, fatty alcohol polyoxyethylene ether and other substances so as to obtain the wax-removing cleaning compound used for stainless steel. The invention has the beneficial effects that the preparation method is simple in steps; the prepared wax-removing cleaning compound has high wax-removing efficiency, improved by 20 to 23% compared with wax-removing efficiency of traditional wax-removing cleaning compounds; the wax-removing cleaning compound is safe, environment-friendly and pollution-free; and after usage of the wax-removing cleaning compound, no corrosion is posed to a substrate, and the surface of the substrate is free of nonuniform discoloration or loss of gloss.

Description

Technical field [0001] The invention relates to a preparation method of an environmentally friendly non-corrosive stainless steel dewaxing cleaning agent, which belongs to the technical field of wax removal cleaning agent preparation. Background technique [0002] In recent years, with the improvement of people’s living standards, stainless steel products (such as tableware, accessories and utensils) have become daily necessities in shopping malls and households. The market demand is great. After stainless steel products are processed and formed, they must be polished on the surface. And the polishing wax remaining in the depression is firmly attached and needs to be cleaned. [0003] At present, the methods of removing wax stains and oil stains on stainless steel mainly include organic solvent method, chemical method, electrochemical method and water-based cleaning agent method. However, the commonly used organic solvent method cannot completely remove the metal oxides and carbid...

Claims

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Application Information

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IPC IPC(8): C23G5/06
CPCC23G5/06
Inventor 孙祎邹宇帆徐越
Owner 孙祎
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