Water-based industrial detergent capable of self-defoaminng at normal temperature and preparation method thereof

Abstract

The invention relates to a water-based industrial detergent capable of self-defoaming at normal temperature and a preparation method thereof. The detergent comprises the following components in percentage by weight: 2-15% of ethylene oxide epoxypropane copolymerized polyoxyethylene, 0.5-5% of triethanolamine, 0.5-4% of sodium metasilicate anhydride, 0.1-2% of fatty alcohol-polyxyethylene ether, 0.1-5% of advanced fatty alcohol (C8-15), 1-5% of sodium gluconate, 0.5-5% of ethylene diamine tetraacetic acid and the balance of water. The preparation method mainly comprises the following steps: dissolving the sodium metasilicate anhydride, the sodium gluconate and the ethylene diamine tetraacetic acid in the water; and then adding the ethylene oxide epoxypropane copolymerized polyoxyethylene, the triethanolamine, the fatty alcohol-polyxyethylene ether, the advanced fatty alcohol (C8-15) and the like in sequence, and mixing to finally obtain the industrial detergent. In the invention, based on the combined action of lipophilic group epoxypropane in the ethylene oxide epoxypropane copolymerized polyoxyethylene and lipophilic group in the system as well as industrial oil stain, the intensity of foam generated in the process of cleaning is reduced so as to realize the self-defoaming effect; through the synergistic effect of various components, optimal cleaning and antirust effects are achieved; simultaneously, through the synergistic effect of various surfactants, the defect that inorganic salts always form white spots on the surface of a workpiece is obviously improved.

Description

technical field [0001] The invention belongs to the field of industrial cleaning, in particular to a normal-temperature self-defoaming water-based industrial cleaning agent used for spray cleaning of industrial craft products and a preparation method thereof. Background technique [0002] In manufacturing industries such as electronics, instrumentation, and machinery, the cleaning of metal parts is a key process that affects product quality. Common methods of industrial cleaning include immersion scrubbing, ultrasonic cleaning, spray cleaning, etc. With the maturity of industrial automation, the automation requirements of the cleaning process are getting higher and higher, and the cleaning efficiency and energy consumption ratio are also getting higher and higher. Spray cleaning It is more and more widely used in industrial cleaning. Conventional spray cleaning mainly uses inorganic salt as the main component, which has good cleaning ability, but also has some limitations: ...

AI Technical Summary

Problems solved by technology

Conventional spray cleaning mainly uses inorganic salt as the main component, which has good cleaning ability, but also has some limitations: 1. There are certain limitations on the removal of oil stains, and the selectivity to mineral oil is poor; 2. Many cleaning The cleaning agent contains phosphorus, pollutes the environment, and its application is greatly restricted; 3. The spray cleaning agent with inorganic salt as the main component is easy to leave white spots on the surface of the workpiece, which affects the subsequent processing

At present, there are many low-foaming spray cleaning agents on the market, their cleaning ability has been greatly improved, and the problem of white spots has been effectively controlled, but there are still the following disadvantages in their application: 1. Most of the defoaming principles use defoaming agents. The antifoaming agent will be taken out by the workpiece during the cleaning process, reducing the defoaming effect, and it is necessary to add defoaming agent frequently, which increases the difficulty of operation; 2. Although the bubble height of the low foaming surfactant is small during spray cleaning, the foam breaking ability is insufficient , Foam overflow usually also occurs, causing short circuit of the equipment, endangering the safety of equipment and operators

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