Water-soluble lubricant composition for hydrophilic coating aluminum foil and its preparation and usage method

A technology of lubricating composition and hydrophilic coating, applied in lubricating composition, petroleum industry and other directions, can solve the problems of affecting the heat exchange effect, destroying the surface hydrophilic coating, complex component structure, etc., achieving a small friction coefficient, The effect of meeting development requirements and reducing losses

Inactive Publication Date: 2006-12-27
JIANGSU ALCHA ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current fin processing methods adopt the no-clean oil lubrication method. In actual use, there are many types of lubricating oil, and the component structure is also relatively complicated. The pollution to the hydrophilic layer is also different, and some may damage Hydrophilic coating on the surface, which ultimately affects the effect of heat exchange

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: lubricating composition component and proportioning (weight %) are: polyglycol ether 70%, water-based resin polyvinyl alcohol 15%, leveling agent (polyacrylic acid ester) 0.5%, antifreezing agent (b Glycol) 1%, emulsifying wax (oxidized polyethylene wax) 7%, deionized water 6.5%.

[0019] The preparation method of lubricating composition comprises the following steps:

[0020] 1) Preparation of water-based lubricating resin polyethylene glycol ether: Prepolymerization reaction with polyethylene glycol with toluene diisocyanate, and then terminate the active end group with monomethyl ether polyethylene glycol to terminate the reaction to ensure excess polyethylene glycol , the product can have hydroxyl groups at both ends. Its technological conditions are as follows:

[0021] a. The molar ratio of reactants: polyethylene glycol: toluene diisocyanate: monomethyl ether polyethylene glycol=0.8: 1: 0.2;

[0022] b. Reaction temperature: 70-80°C;

[0023] c....

Embodiment 2

[0028] Embodiment 2: lubricating composition component and proportioning (weight %) are: polyethylene glycol ether 80%, water-based resin polyvinylpyrrolidone 10%, leveling agent (polyacrylate) 1%, antifreezing agent (B Glycol) 1%, emulsifying wax (oxidized polyethylene wax) 6%, deionized water 2%.

[0029] The preparation method of lubricating composition comprises the following steps:

[0030] 1) Preparation of water-based lubricating resin polyglycol ether: prepolymerization reaction with polyethylene glycol with a mixture of toluene diisocyanate and hexamethylene diisocyanate, and then terminate the active end group with hydroxyalkyl (meth)acrylate The reaction is terminated to ensure that the polyethylene glycol is in excess, and the product has only one end containing a hydroxyl group. Its technological conditions are as follows:

[0031] a. The molar ratio of reactant: polyethylene glycol: toluene diisocyanate and hexamethylene diisocyanate mixture: (meth) hydroxyalky...

Embodiment 3

[0038] Embodiment 3: lubricating composition component and proportioning (weight %) are: polyethylene glycol ether 85%, aqueous resin (hydroxyethyl cellulose) 8%, leveling agent (polyester) 1%, antifreeze Agent (ethylene glycol) 0.5%, emulsifying wax (oxidized polyethylene wax) 3%, deionized water 2.5%.

[0039] The preparation method of lubricating composition comprises the following steps:

[0040] 1) Preparation of water-based lubricating resin polyethylene glycol ether: Prepolymerization reaction with polyethylene glycol with hexamethylene diisocyanate, and then terminate the active end group with monomethyl ether polyethylene glycol to terminate the reaction, ensuring that polyethylene glycol Diol excess, the product has hydroxyl groups at both ends. Its technological conditions are as follows:

[0041] a. The molar ratio of reactants: polyethylene glycol: hexamethylene diisocyanate: monomethyl ether polyethylene glycol=0.4: 1: 0.6;

[0042] b. Reaction temperature: 70...

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PUM

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Abstract

The invention discloses water-solubility lubricating composition and preparing method, comprises 70-90% poly ethylene glycol ether, 5-15% water-soluble resin, 0.5-1.5% levelling agent, 0.5-1.5% anti-freeze agent, 1-7% polyethylene oxide wax and 1.5-10% deionized water. The method comprises the following steps: carrying out polymerization reaction for diisocyanate and carbowax, terminating active end-group with terminating agent, diluting, cooling, getting polyethylene glycol ether, putting the materials into dispersion machine, stirring, and getting the product. The compound is coated on the surface of aluminum foil with roller coating cloth method, the net roll depth is 40-100 mu, the line is 75-165 line / inch, curing temperature is 100-250Deg.C, and curing time is 10-30s.

Description

1. Technical field [0001] The invention relates to a water-soluble lubricating composition, in particular to a water-soluble lubricating composition for a hydrophilic coated aluminum foil used on an air conditioner heat sink, and also relates to a preparation method and a use method of the composition. 2. Background technology [0002] With the continuous development of the air-conditioning and refrigeration equipment industry, the heat exchangers of air-conditioning have been widely used to make fins from hydrophilic coated aluminum foil, and the fins and metal tubes (usually copper tubes) are assembled into two devices (condenser and evaporator). The metal tube passes through the punched part of the fin, and after the tube is expanded, the metal tube and the fin are closely attached. When the air conditioner is in operation, the refrigerant exchanges heat with the outside through the metal tube and the fin. Because the hydrophilic coated aluminum foil used in the fins has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M107/32C10N40/24
Inventor 朱俊明张敏达缪晓锋朱军
Owner JIANGSU ALCHA ALUMINUM CO LTD
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