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Low-temperature cleaning agent suitable for fluoride-free refrigeration industry as well as preparation method and application thereof

A cleaning agent and industry technology, applied in the field of low-temperature cleaning agent and its preparation, can solve the problems of capillary blockage in refrigeration system, difficulty in rinsing with inorganic salts, harsh working environment, etc., to solve capillary blockage, excellent cleaning performance, and excellent wettability. Effect

Active Publication Date: 2020-11-10
GUANGZHOU LUODE CHEM SCI & TRADING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inorganic salt in the formula is difficult to rinse and has a high residue. If it is used in the fluorine-free refrigeration industry, it will not only consume a lot of energy and cause a bad working environment, but also cause the capillary tube of the refrigeration system to be blocked or even scrapped after use.

Method used

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  • Low-temperature cleaning agent suitable for fluoride-free refrigeration industry as well as preparation method and application thereof
  • Low-temperature cleaning agent suitable for fluoride-free refrigeration industry as well as preparation method and application thereof

Examples

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preparation example Construction

[0026] The preparation of antirust additive in the embodiment is as follows:

[0027] Mix 25% of pure water, 35% of isooctanoic acid, and 15% of hydroxyethylethylenediamine at 100°C for 2 hours, then add 15% of triethylenetetramine, mix and react for 2 hours at 100°C, and finally add 10% ethanol, mixed and stirred at room temperature for 1 hour, and the stirring speed was 100 rpm, and the antirust additive was obtained.

Embodiment 1-2

[0029] The preparation method of embodiment 1-2 low temperature cleaning agent is as follows:

[0030] Mix water and hydroxyethylethylenediamine and stir for 0.5h, then add isooctanoic acid and stir for 0.5h, add ammonium lauryl alcohol ether sulfate and stir for 0.5h, add 2-mercaptobenzothiazole and stir for 0.5h, add cyclic Oxyalkyl modified acetylene glycol was stirred for 0.5 h, ethylene glycol butyl ether was added and stirred for 0.5 h, and antirust additive was finally added and stirred for 2 h to obtain the low-temperature cleaning agent. The stirring speed is 100 rpm. The addition amount of each component is shown in Table 1.

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Abstract

The invention belongs to the technical field of cleaning agents, and particularly relates to a low-temperature cleaning agent suitable for the fluoride-free refrigeration industry and a preparation method and application of the low-temperature cleaning agent. The low-temperature cleaning agent is prepared from the following raw materials in percentage by mass: 30-40% of water, 10-20% of hydroxyethyl ethylenediamine, 5-15% of isocaprylic acid, 5-15% of dodecyl alcohol ether ammonium sulfate, 5-15% of 2-mercaptobenzothiazole, 5-15% of epoxy alkyl modified alkynediol, 5-15% of ethylene glycol butyl ether and 5-15% of an antirust additive. A low-residue formula is adopted, rinsing is easy, the residual quantity of the cleaning agent on the surfaces of refrigeration parts is reduced, and the hidden danger that capillary tubes of a refrigeration system are blocked is avoided. The epoxy alkyl modified alkynediol and the ethylene glycol butyl ether have excellent wettability, permeability anddispersity at room temperature, dirt can be easily dissociated from the surface of a cleaned object, and excellent cleaning performance can be achieved at low temperature.

Description

technical field [0001] The invention belongs to the technical field of cleaning agents, and in particular relates to a low-temperature cleaning agent suitable for fluorine-free refrigeration industry and its preparation method and application. Background technique [0002] Cleaning agents used in the traditional refrigeration industry are generally made of inorganic salts (phosphates, nitrites), anionic surfactants, anti-rust additives, sodium hydroxide, potassium hydroxide, etc., but they need to be heated in actual use To 50 ℃ or above, in order to play an effective cleaning ability. However, the inorganic salt in the formula is difficult to rinse and has a high residue. If it is used in the fluorine-free refrigeration industry, it will not only consume a lot of energy, cause a bad working environment, but also cause the capillary tube of the refrigeration system to be blocked or even scrapped after use. Contents of the invention [0003] In order to overcome the shortc...

Claims

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Application Information

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IPC IPC(8): C11D1/37C11D3/20C11D3/26C11D3/34C11D3/60
CPCC11D1/37C11D3/26C11D3/349C11D3/2068C11D1/146C11D1/04C11D2111/20
Inventor 罗伟森黎新浩罗国强黄金强张伟前
Owner GUANGZHOU LUODE CHEM SCI & TRADING
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