CN101476131B - Foamless low temperature degreasing agent - Google Patents

Foamless low temperature degreasing agent Download PDF

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Publication number
CN101476131B
CN101476131B CN2009100102396A CN200910010239A CN101476131B CN 101476131 B CN101476131 B CN 101476131B CN 2009100102396 A CN2009100102396 A CN 2009100102396A CN 200910010239 A CN200910010239 A CN 200910010239A CN 101476131 B CN101476131 B CN 101476131B
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China
Prior art keywords
agent
low temperature
steel plate
ether
temperature degreasing
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CN2009100102396A
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Chinese (zh)
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CN101476131A (en
Inventor
刘梅英
王国栋
苏永渤
孙中强
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东北大学
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Priority to CN2009100102396A priority Critical patent/CN101476131B/en
Publication of CN101476131A publication Critical patent/CN101476131A/en
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Publication of CN101476131B publication Critical patent/CN101476131B/en

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Abstract

The invention provides a non-foaming low-temperature degreasant which belongs to the chemical technique field. The non-foaming low-temperature degreasant is prepared from components by weight percentage as follows: water 77.4-96.35%, sodium hydroxide 3-20%, polyoxyethylene nonyl phenyl ether 0.1-0.5%, fatty alcohd-polyoxyethlene ether 0.1-0.5%, carmowax 0.05-0.1%, disodium EDTA 0.2-0.5%, silicone antifoam agent 0.1-0.5%, fatty alcohol polyethenoxy ether type osmotic agent 0.1-0.5%. The non-foaming low-temperature degreasant has advantages of better oil removing effect, low use temperature, and simple preparing method. The non-foaming low-temperature degreasant has better application prospect.

Description

A kind of foamless low temperature degreasing agent
Technical field
The invention belongs to chemical technology field, particularly a kind of foamless low temperature degreasing agent.
Background technology
In the iron and steel operation of rolling,, be extensive use of grease-removing agent with the enhancing effect of deoiling for the greasy dirt of flush away surface of steel plate.Domestic employed grease-removing agent uses the effect that just can obtain under higher temperature (75~85 ℃) condition at present, and in operational process, produce a large amount of bubbles, there is following defective in it: (1) use temperature is higher, it is bigger then to heat the heat that needs, consumes energy is more, the required fuel of waste heating, air ambient pollutes bigger; (2) produce bubble in the use and can take away the partially skimmed agent, cause the waste of grease-removing agent; (3) a large amount of bubbles that produce in the use make on-the-spot Working environment variation.
The action principle of grease-removing agent be in the grease-removing agent sodium hydroxide can with the vegetable and animals oils generation saponification of surface of steel plate, generate the soda soap of solubility after, split away off from surface of steel plate, be dissolved in the water; The pollution by oil material that additive in the grease-removing agent can be moistening, the infiltration metallic surface exists, by dissemination and emulsifying effect, pollution substance is converted into emulsified state, make it become water-soluble substances by the insoluble material, increase its solubleness, thereby remove from steel surface.
Mostly be high temperature modification (75~85 ℃) at the widely used grease-removing agent of iron and steel enterprise now, and be external import more than 90%, cost an arm and a leg; Domestic urgent need is developed a kind of low temperature degreasing agent to adapt to industrial requirement.
Summary of the invention
At above technical problem, the invention provides a kind of foamless low temperature degreasing agent.
Grease-removing agent composition of the present invention is water 77.4~96.35% by weight percentage, sodium hydroxide 3~20%, polyoxyethylene nonylphenol ether (NP) 0.1~0.5%, fatty alcohol-polyoxyethylene ether (AEO-9) 0.1~0.5%, polyoxyethylene glycol 0.05~0.1%, disodium EDTA (EDTA) 0.2~0.5%, silicone antifoam agent 0.1~0.5%, fatty alcohol polyethenoxy ether class permeate agent (JFC-6) 0.1~0.5%.
The molecular formula of polyoxyethylene nonylphenol ether is
The molecular formula of fatty alcohol-polyoxyethylene ether is R-O (CH 2CH 2O) nH; R is-C 12H 25
The molecular formula of polyoxyethylene glycol is HO (CH 2CH 2O) nH.
The molecular formula of disodium EDTA is C 10H 14Na 2O 82H 2O.
The molecular formula of fatty alcohol polyethenoxy ether class permeate agent is R-O (CH 2CH 2O) nH; R is C 8~C 10
The preparation method of foamless low temperature degreasing agent of the present invention is:
With sodium hydroxide, add in the entry, be stirred to sodium hydrate solid and all dissolve, adding EDTA is stirred to EDTA and all dissolves, and obtains basic solution; Polyoxyethylene glycol is added to the water, being stirred to polyoxyethylene glycol all dissolves, obtain alcoholic solution, alcoholic solution and basic solution are mixed, add polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, fatty alcohol polyethenoxy ether class permeate agent and silicone antifoam agent, add entry again and mix, obtain foamless low temperature degreasing agent.Total add-on of each composition is sodium hydroxide 3~20% by weight percentage, polyoxyethylene nonylphenol ether (NP) 0.1~0.5%, fatty alcohol-polyoxyethylene ether (AEO) 0.1~0.5%, polyoxyethylene glycol 0.05~0.1%, disodium EDTA (EDTA) 0.2~0.5%, silicone antifoam agent 0.1~0.5%, fatty alcohol polyethenoxy ether class permeate agent (JFC) 0.1~0.5%; Wherein the water consumption in the basic solution is as the criterion by dissolved hydrogen sodium oxide and EDTA fully, and the add-on of water is as the criterion by dissolving polyoxyethylene glycol fully in the alcoholic solution, and Total Water accounts for 77.4~96.35% of foamless low temperature degreasing agent by weight percentage.
The water that adopts among the present invention is deionized water.
The polyoxyethylene nonylphenol ether that adopts among the present invention is Nonyl pheno (15) ether NP-15.
The fatty alcohol-polyoxyethylene ether that adopts among the present invention is aliphatic alcohol polyethenoxy (9) ether AEO-9.
The polyoxyethylene glycol that adopts among the present invention is PEG-6000.
The fatty alcohol polyethenoxy ether class permeate agent that the present invention adopts is aliphatic alcohol polyethenoxy (6-7) ether JFC-6.
Adopt foamless low temperature degreasing agent of the present invention to carry out the removal greasy dirt test of surface of steel plate, it is 50~80 ℃ that foamless low temperature degreasing agent is heated to temperature, to remove the smeary steel plate and place foamless low temperature degreasing agent to adopt ordinary method to remove the greasy dirt test, measure the contact angle of the steel plate of removing the greasy dirt front and back; Adopt present domestic grease-removing agent commonly used to remove the greasy dirt test simultaneously.Test result shows, under the equal temperature condition, after adopting foamless low temperature degreasing agent of the present invention to remove greasy dirt, the contact angle of steel plate is significantly less than and adopts other grease-removing agents, and when 50~60 ℃ of temperature, the deoiling effect of foamless low temperature degreasing agent of the present invention still is better than the deoiling effect of other grease-removing agents in the time of 70~80 ℃; And do not produce bubble in the use, not only help the cleaning of production environment, and do not cause the grease-removing agent loss because of producing bubble.Adopt cold condition that steel plate is carried out degreasing, can reduce production energy consumption in a large number; Significant for save energy.
Foamless low temperature degreasing agent of the present invention not only has the advantage that deoiling effect is good, use temperature is low, and the preparation method is simple, has a good application prospect.
Description of drawings
Fig. 1 is the design sketch that adopts in the embodiment of the invention after at present domestic grease-removing agent commonly used is removed the steel plate greasy dirt, adopts the design sketch after domestic grease-removing agent commonly used is removed greasy dirt among the figure among a, the embodiment 1; Adopt the design sketch after domestic grease-removing agent commonly used is removed greasy dirt among b, the embodiment 2; Adopt the design sketch after domestic grease-removing agent commonly used is removed greasy dirt among c, the embodiment 3; Adopt the design sketch after domestic grease-removing agent commonly used is removed greasy dirt among d, the embodiment 4.
Fig. 2 is the design sketch that adopts in the embodiment of the invention after foamless low temperature degreasing agent of the present invention is removed the steel plate greasy dirt, the design sketch behind the grease-removing agent of the preparation processing steel plate among e, the embodiment 1 among the figure; Design sketch among f, the embodiment 2 behind the grease-removing agent of the preparation processing steel plate; Design sketch among g, the embodiment 3 behind the grease-removing agent of the preparation processing steel plate; Design sketch among h, the embodiment 4 behind the grease-removing agent of the preparation processing steel plate.
Embodiment
The water that adopts in the embodiment of the invention is deionized water.
The silicone antifoam agent that adopts in the embodiment of the invention is a Guangzhou fluorine silicon edge Science and Technology Ltd. product.
The polyoxyethylene nonylphenol ether that adopts in the embodiment of the invention is Nonyl pheno (15) ether NP-15.
The fatty alcohol-polyoxyethylene ether that adopts in the embodiment of the invention is aliphatic alcohol polyethenoxy (9) ether AEO-9.
The polyoxyethylene glycol that adopts in the embodiment of the invention is PEG-6000.
The fatty alcohol polyethenoxy ether class permeate agent that adopts in the embodiment of the invention is aliphatic alcohol polyethenoxy (6-7) ether JFC-6.
The sodium hydroxide that adopts in the embodiment of the invention, EDTA, polyoxyethylene glycol (PEG-6000), polyoxyethylene nonylphenol ether (NP-15), fatty alcohol-polyoxyethylene ether (AEO-9), fatty alcohol polyethenoxy ether class permeate agent (JFC-6) are technical grade product.
The contact angle testing apparatus that adopts in the embodiment of the invention is type hand contact angle instrument SL-100, Shanghai Solon Science and Technology Ltd. product.
It is 65~75 ° that the steel plate that adopts in the embodiment of the invention soaks the front end contact angle.
The water bath with thermostatic control equipment that adopts in the embodiment of the invention is HH-4 digital display thermostat water bath, Changzhou Australia China Instr Ltd. product.
Embodiment 1
With sodium hydroxide, add in the entry, be stirred to sodium hydrate solid and all dissolve, adding EDTA is stirred to EDTA and all dissolves, and obtains basic solution; Polyoxyethylene glycol is added to the water, being stirred to polyoxyethylene glycol all dissolves, obtain alcoholic solution, alcoholic solution and basic solution are mixed, add polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, fatty alcohol polyethenoxy ether class permeate agent and silicone antifoam agent, add entry again and mix, obtain foamless low temperature degreasing agent.Total add-on of each composition is sodium hydroxide 20% by weight percentage, polyoxyethylene nonylphenol ether 0.5%, fatty alcohol-polyoxyethylene ether 0.5%, polyoxyethylene glycol 0.1%, disodium EDTA 0.5%, silicone antifoam agent 0.5%, fatty alcohol polyethenoxy ether class permeate agent 0.5%; Wherein the water consumption in the basic solution is as the criterion by dissolved hydrogen sodium oxide and EDTA fully, and the add-on of water is as the criterion by dissolving polyoxyethylene glycol fully in the alcoholic solution, and Total Water accounts for 77.4% of foamless low temperature degreasing agent by weight percentage.
This foamless low temperature degreasing agent is placed water bath with thermostatic control, be heated to 80 ℃, steel plate to be cleaned is put into foamless low temperature degreasing agent immersion treatment 20s, no bubble produces in the treating processes; Take out steel plate then, use deionized water rinsing rapidly, scrub steel plate with hairbrush simultaneously.The contact angle that cleans the back steel plate is 11 °.Steel plate after the processing is shown in Fig. 2 e.
Adopt domestic grease-removing agent commonly used, remove the greasy dirt test as stated above, the contact angle that cleans the back steel plate is 17 °.Steel plate after the processing as shown in Figure 1a.
Embodiment 2
The preparation method of foamless low temperature degreasing agent is with embodiment 1, difference is that total add-on of each composition is sodium hydroxide 3% by weight percentage, polyoxyethylene nonylphenol ether 0.1%, fatty alcohol-polyoxyethylene ether 0.1%, polyoxyethylene glycol 0.05%, disodium EDTA 0.2%, silicone antifoam agent 0.1%, fatty alcohol polyethenoxy ether class permeate agent 0.1%; Total Water accounts for 96.35% of foamless low temperature degreasing agent by weight percentage.
This foamless low temperature degreasing agent is placed water bath with thermostatic control, be heated to 70 ℃, steel plate to be cleaned is put into foamless low temperature degreasing agent immersion treatment 20s, no bubble produces in the treating processes; Take out steel plate then, use deionized water rinsing rapidly, scrub steel plate with hairbrush simultaneously.The contact angle that cleans the back steel plate is 13 °.Steel plate after the processing is shown in Fig. 2 f.
Adopt domestic grease-removing agent commonly used, remove the greasy dirt test as stated above, the contact angle that cleans the back steel plate is 19 °.Steel plate after the processing is shown in Fig. 1 b.
Embodiment 3
The preparation method of foamless low temperature degreasing agent is with embodiment 1, difference is that total add-on of each composition is sodium hydroxide 16% by weight percentage, polyoxyethylene nonylphenol ether 0.2%, fatty alcohol-polyoxyethylene ether 0.4%, polyoxyethylene glycol 0.08%, disodium EDTA 0.4%, silicone antifoam agent 0.2%, fatty alcohol polyethenoxy ether class permeate agent 0.3%; Total Water accounts for 82.42% of foamless low temperature degreasing agent by weight percentage.
This foamless low temperature degreasing agent is placed water bath with thermostatic control, be heated to 60 ℃, steel plate to be cleaned is put into foamless low temperature degreasing agent immersion treatment 20s, no bubble produces in the treating processes; Take out steel plate then, use deionized water rinsing rapidly, scrub steel plate with hairbrush simultaneously.The contact angle that cleans the back steel plate is 13 °.Steel plate after the processing is shown in Fig. 2 g.
Adopt domestic grease-removing agent commonly used, remove the greasy dirt test as stated above, the contact angle that cleans the back steel plate is 22 °.Steel plate after the processing is shown in Fig. 1 c.
Embodiment 4
The preparation method of foamless low temperature degreasing agent is with embodiment 1, difference is that total add-on of each composition is sodium hydroxide 9% by weight percentage, polyoxyethylene nonylphenol ether 0.4%, fatty alcohol-polyoxyethylene ether 0.3%, polyoxyethylene glycol 0.06%, disodium EDTA 0.3%, silicone antifoam agent 0.4%, fatty alcohol polyethenoxy ether class permeate agent 0.2%; Total Water accounts for 89.34% of foamless low temperature degreasing agent by weight percentage.
This foamless low temperature degreasing agent is placed water bath with thermostatic control, be heated to 50 ℃, steel plate to be cleaned is put into foamless low temperature degreasing agent immersion treatment 20s, no bubble produces in the treating processes; Take out steel plate then, use deionized water rinsing rapidly, scrub steel plate with hairbrush simultaneously.The contact angle that cleans the back steel plate is 15 °.Steel plate after the processing is shown in Fig. 2 h.
Adopt domestic grease-removing agent commonly used, remove the greasy dirt test as stated above, the contact angle that cleans the back steel plate is 29 °.Steel plate after the processing is shown in Fig. 1 d.

Claims (1)

1. foamless low temperature degreasing agent, the composition that it is characterized in that this foamless low temperature degreasing agent is water 77.4~96.35% by weight percentage, sodium hydroxide 3~20%, polyoxyethylene nonylphenol ether 0.1~0.5%, AEO-9 0.1~0.5%, polyoxyethylene glycol 0.05~0.1%, disodium EDTA 0.2~0.5%, silicone antifoam agent 0.1~0.5%, JFC-60.1~0.5%; Described water is deionized water; Described polyoxyethylene nonylphenol ether is NP-15; Described polyoxyethylene glycol is PEG-6000; The molecular formula of AEO-9 is C 12H 25-O (CH 2CH 2O) nH; The molecular formula of JFC-6 is R-O (CH 2CH 2O) nH, wherein R is C 8~C 10
CN2009100102396A 2009-01-21 2009-01-21 Foamless low temperature degreasing agent CN101476131B (en)

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021597B (en) * 2010-12-30 2012-09-19 广州嘉史洁环保科技有限公司 Metal degreasing agent
CN102296317A (en) * 2011-08-31 2011-12-28 蚌埠市钰诚五金工贸有限公司 Lipase non-phosphorus degreasing agent and preparation method thereof
CN102296313A (en) * 2011-08-31 2011-12-28 蚌埠市钰诚五金工贸有限公司 High efficiency lipase phosphorus-free degreaser and its preparation method
CN102330096A (en) * 2011-09-23 2012-01-25 蚌埠市钰诚新材料科技有限公司 Formula of biological compound type degreasing agent
CN102534636B (en) * 2011-10-31 2013-10-30 武汉钢实硅钢浩源润滑油有限公司 Phosphate-free degreasing fluid composition for cold-rolled sheets before galvanizing, and preparation method for composition
CN102367576B (en) * 2011-11-17 2013-04-03 兰州陇能电力科技有限公司 EDTA (Ethylene Diamine Tetraacetic Acid) low-temperature cleaning aid and application thereof
CN102560515B (en) * 2012-03-12 2013-11-06 海门市森达装饰材料有限公司 Efficient low-foam special cleaning agent for stainless steel plate
CN103343347B (en) * 2013-06-27 2015-07-15 陈德辉 Production method of oil removal agent for stainless steel
CN105107698B (en) * 2015-07-29 2018-01-12 福建奋安铝业有限公司 A kind of architectural aluminum section surface plastic plating technology
CN106480467A (en) * 2015-08-26 2017-03-08 盐城市瓯华化学工业有限公司 A kind of chemical industry equipment degreasing agent
CN105951114A (en) * 2016-05-11 2016-09-21 江西洪都航空工业集团有限责任公司 Aluminum-lithium alloy degreasing solution and degreasing technique
CN107988444A (en) * 2017-11-27 2018-05-04 四川达威科技股份有限公司 A kind of degreasing agent and its manufacture craft and application

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