CN102154053A - Nanographite additive for water-based cutting fluid and preparation method thereof - Google Patents
Nanographite additive for water-based cutting fluid and preparation method thereof Download PDFInfo
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- CN102154053A CN102154053A CN2011100750682A CN201110075068A CN102154053A CN 102154053 A CN102154053 A CN 102154053A CN 2011100750682 A CN2011100750682 A CN 2011100750682A CN 201110075068 A CN201110075068 A CN 201110075068A CN 102154053 A CN102154053 A CN 102154053A
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Abstract
The invention relates to an additive and a preparation method thereof, in particular to a nanographite additive for water-based cutting fluid and a preparation method thereof. The nanographite additive for the water-based cutting fluid is characterized by comprising the following components in percentage by weight: 0.01-0.10% of nanographite, 0.15-1.20% of sodium dodecyl benzene sulfonate, 0.10-0.15% of sodium bicarbonate, 0.10-0.15% of potassium peroxydisulfate, 15-20% of methyl acrylate, 1.50-2.15% of OP-10, and the balance of water. The nanographite additive for the water-based cutting fluid and the preparation method thereof, provided by the invention, have the beneficial effects that stable diffusion of the nanographite in a water-based medium is realized, and by taking the nanographite as the additive for the water-based cutting fluid, the frictional wear behavior of mechanical parts can be obviously improved, and the lubricating performance of the water-based cutting fluid is enhanced.
Description
(1) technical field
The present invention relates to a kind of additive and preparation method thereof, particularly a kind of nano-graphite water-base cutting fluid additive and preparation method thereof.
(2) background technology
Nano-graphite is the more inorganic nonmetallic nanometer material of a kind of Recent study, it has the good conduction of common graphite, heat conduction, self lubricity and chemical stability on the one hand, also have volume effect, surface interface effect, quantum size effect of nano material etc. on the other hand, thereby obtain in lubricated field paying much attention to, but the nano-graphite specific surface area is big, very easily in polymeric matrix and dispersion medium, reunite, thereby reduced the performance of system, hindered its widespread use.At present, water-base cutting fluid has good cooling, cleaning and rustless property than the oil base cutting fluid, and cost is lower, and is pollution-free, meets the social desirability of Sustainable development but lubricity is poor, thereby range of application is restricted.
(3) summary of the invention
The present invention is in order to remedy the deficiencies in the prior art, provide a kind of can be in aqueous medium the high nano-graphite water-base cutting fluid additive of stable dispersion and lubricity and preparation method thereof.
The present invention is achieved through the following technical solutions:
A kind of nano-graphite water-base cutting fluid additive is characterized in that: made by following components in weight percentage:
Nano-graphite 0.01-0.10%
Sodium dodecylbenzene sulfonate 0.15-1.20%
Sodium bicarbonate 0.10-0.15%
Potassium Persulphate 0.10-0.15%
Methyl acrylate 15-20%
OP-10 1.50-2.15%
All the other are water.
The preparation method of this invention nano-graphite water-base cutting fluid additive is characterized in that: comprise the steps:
(a) ultra-sonic dispersion pre-treatment: get nano-graphite, Sodium dodecylbenzene sulfonate, sodium bicarbonate, OP-10 and water by described weight percent and on processor for ultrasonic wave, carried out ultra-sonic dispersion 5-15 minute;
(b) preparation of nano-graphite aqueous-based dispersions: step (a) gained treatment solution and methyl acrylate and initiator potassium persulfate are mixed, and reaction is 4-6 hour under 65-75 ℃ of condition;
(c) centrifugal purification: with step (b) gained nano-graphite aqueous-based dispersions on the whizzer with the 2000-3000r/min condition under centrifugal 25-35 minute, get supernatant liquor, can obtain the nano-graphite dispersion liquid as the water-base cutting fluid additive.
The beneficial effect of nano-graphite water-base cutting fluid additive of the present invention and preparation method thereof is: realized the stable dispersion of nano-graphite in aqueous medium; Nano-graphite as the water-base cutting fluid additive, can significantly be improved the friction and wear behavior of component of machine, improve the lubricity of water-base cutting fluid, thereby improve present water-base cutting fluid cooling, cleaning and favorable rust preventing effect but the not good defective of lubricity.
(4) description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is 70 ℃, and the 5h sample amplifies 35 times SEM figure;
Fig. 2 is 70 ℃, and the 5h sample amplifies 1000 times SEM figure;
Fig. 3 is 70 ℃, and the 5h sample amplifies 1800 times SEM figure;
Fig. 4 is 70 ℃, and the 5h sample amplifies 3000 times SEM figure.
(5) embodiment
Embodiment 1:
Nano-graphite water-base cutting fluid additive, make by the component of following weight:
0.05 kilogram of nano-graphite, 0.7 kilogram of Sodium dodecylbenzene sulfonate, 0.125 kilogram of sodium bicarbonate, 0.125 kilogram of Potassium Persulphate, 18 kilograms of methyl acrylates, 1.8 kilograms of OP-10,79.2 kilograms in water.
The preparation method of this nano-graphite water-base cutting fluid additive, adopt following steps:
(a) ultra-sonic dispersion pre-treatment: get nano-graphite, Sodium dodecylbenzene sulfonate, sodium bicarbonate, OP-10 and water by above-mentioned weight and on processor for ultrasonic wave, carried out ultra-sonic dispersion 12 minutes;
(b) preparation of nano-graphite aqueous-based dispersions: step (a) gained treatment solution and methyl acrylate and initiator potassium persulfate are mixed, and reaction is 6 hours under 65 ℃ of conditions;
(c) centrifugal purification: with step (b) gained nano-graphite aqueous-based dispersions on the whizzer with the 2000r/min condition under centrifugal 35 minutes, get supernatant liquor, can obtain the nano-graphite dispersion liquid as the water-base cutting fluid additive.
Embodiment 2:
This nano-graphite water-base cutting fluid additive, make by the component of following weight:
0.01 kilogram of nano-graphite, 1.2 kilograms of Sodium dodecylbenzene sulfonatees, 0.1 kilogram of sodium bicarbonate, 0.1 kilogram of Potassium Persulphate, 20 kilograms of methyl acrylates, 1.5 kilograms of OP-10,77.09 kilograms in water.All the other are identical with embodiment 1.
Embodiment 3:
0.1 kilogram of nano-graphite, 0.15 kilogram of Sodium dodecylbenzene sulfonate, 0.15 kilogram of sodium bicarbonate, 0.15 kilogram of Potassium Persulphate, 15 kilograms of methyl acrylates, 2.15 kilograms of OP-10,82.3 kilograms in water.All the other are identical with embodiment 1.
Embodiment 4:
The preparation method of this nano-graphite water-base cutting fluid additive, adopt following steps:
(a) ultra-sonic dispersion pre-treatment: under laboratory condition, adopt the method for ultra-sonic dispersion to make nano-graphite liquid homodisperse, wherein raw materials used is 10 purpose nano-graphite (fixed carbon content: 99.95%, the place of production: Qingdao China safe lubrication and seal company), went up ultra-sonic dispersion 10 minutes at processor for ultrasonic wave (FS-250, ultrasonic instrument company limited is analysed in the Shanghai life) after taking by weighing 0.081 kilogram of Nano graphite powder, 0.81 kilogram of Sodium dodecylbenzene sulfonate, 0.138 kilogram of sodium bicarbonate, 1.62 kilograms of OP-10 and 80.988 kilograms of mixing of water.
(b) preparation of nano-graphite aqueous-based dispersions: get step (a) gained treatment solution; 16.25 kilograms of the methyl acrylate of adding after underpressure distillation is refining; mechanical stirring emulsification 30 minutes; cause with 0.113 kilogram of Potassium Persulphate again; in nitrogen protection atmosphere, react; reaction times is 5 hours, and temperature of reaction is 70 ℃, obtains uniform mazarine composite emulsion.
(c) centrifugal purification: get step (b) gained composite emulsion on electric centrifuge (800, Jintan City, Jiangsu Province Medical Instruments factory),, get supernatant liquor with under the 3000r/min condition centrifugal 30 minutes.
(d) the microtexture evaluation of dispersion pattern: use scanning electronic microscope SEM(S-4800, HIT), see accompanying drawing 1-4 to the Microstructure characterization that step (c) gained supernatant liquor disperses pattern.
Among Fig. 1-4, increase successively to the d magnification, be followed successively by * 35, * 1000, * 1800, * 3000 times from a.By scheming the distribution that a can obviously find out nano-graphite, the outer coating uniformly of the graphite pebbles of black gone up the oyster white polymethyl acrylate, makes graphite granule realize good dispersion.Because it is outer tensio-active agent, hydrophobic end and graphite surface anchor close, and outside water-wet side is exposed to, have realized that the stable dispersion of graphite in water base also effectively avoided the reunion between the extremely strong nano particle of surface energy.Figure c is the partial enlarged drawing of figure d, can be clearly seen that from figure c flaky substance is a nano graphite sheet, and multipolymer has formed fine and close membranaceous compound substance uniformly attached to the surface of nano graphite sheet on every side.Figure d focuses on single nano graphite flakes, and dispersion of materials is even as can be seen, and nano graphite sheet keeps original sheet structure after the polymerization, and its lubricity is destroyed, and the trial for preparing for the nano-graphite water-base cutting fluid provides reference and foundation.
(e) cutting fluid preparation: the interpolation massfraction is 1% nano-graphite water-base cutting fluid additive in thousand generation QDW618 synthetic cutting fluid, and mechanical stirring is deployed into cutting fluid.
(f) tribological property evaluation: the MQ-800 type four-ball friction and wear test machine that adopts Jinan trier factory to produce (is measured last non seizure load P
BValue and wear scar diameter WSD) and MPV-200 friction wear testing machine (mensuration frictional coefficient) carry out tribology test, with the QDW618 synthetic cutting fluid as reference liquid, with reference to the tribology parameter of GB/T3142 standard test lubricant.The tribology test-results is as shown in table 1.
Table 1 nano-graphite cutting fluid tribology test-results
| Cutting fluid | Last non seizure load P B/N | Wear scar diameter D/mm | Frictional coefficient |
| Reference liquid | 718.0 | 0.41 | 0.103 |
| Nano-graphite liquid | 801.2 | 0.37 | 0.069 |
Experimental result shows: compare with reference liquid, when adding nano-graphite additive of the present invention in the cutting fluid, the supporting capacity of cutting fluid, antifriction antiwear ability and lubricity all strengthen to some extent.
Claims (2)
1. nano-graphite water-base cutting fluid additive is characterized in that: made by following components in weight percentage:
Nano-graphite 0.01-0.10%
Sodium dodecylbenzene sulfonate 0.15-1.20%
Sodium bicarbonate 0.10-0.15%
Potassium Persulphate 0.10-0.15%
Methyl acrylate 15-20%
OP-10 1.50-2.15%
All the other are water.
2. the preparation method of nano-graphite water-base cutting fluid additive according to claim 1 is characterized in that: comprise the steps:
(a) ultra-sonic dispersion pre-treatment: get nano-graphite, Sodium dodecylbenzene sulfonate, sodium bicarbonate, OP-10 and water by described weight percent and on processor for ultrasonic wave, carried out ultra-sonic dispersion 5-15 minute;
(b) preparation of nano-graphite aqueous-based dispersions: step (a) gained treatment solution and methyl acrylate and initiator potassium persulfate are mixed, and reaction is 4-6 hour under 65-75 ℃ of condition;
(c) centrifugal purification: with step (b) gained nano-graphite aqueous-based dispersions on the whizzer with the 2000-3000r/min condition under centrifugal 25-35 minute, get supernatant liquor, can obtain the nano-graphite dispersion liquid as the water-base cutting fluid additive.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925272A (en) * | 2012-10-26 | 2013-02-13 | 孙兵 | Water-lubricated wear-resistant cooling liquid and preparation method thereof |
| CN103087798A (en) * | 2013-01-30 | 2013-05-08 | 内江海德科技有限公司 | Wire-drawing nanometer graphite lubricant of single crystal copper bonding wire and preparation method of lubricant |
| CN103695143A (en) * | 2013-12-05 | 2014-04-02 | 马鞍山市恒毅机械制造有限公司 | Cutting liquid containing nano-graphite and preparation method thereof |
| CN104560335A (en) * | 2014-12-30 | 2015-04-29 | 芜湖市润雨精密机械有限公司 | Semi-synthesis type rust preventive cutting fluid and preparation method thereof |
| CN105886086A (en) * | 2016-05-10 | 2016-08-24 | 合肥工业大学 | Environment-friendly high-water-based cutting fluid for metal machining |
| CN106190480A (en) * | 2016-07-13 | 2016-12-07 | 天长市润达金属防锈助剂有限公司 | A kind of anti-rust metal cutting fluid of high lubricating property |
| CN109504518A (en) * | 2017-09-15 | 2019-03-22 | 南京美克斯精密机械有限公司 | A kind of metal working lubricant |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925272A (en) * | 2012-10-26 | 2013-02-13 | 孙兵 | Water-lubricated wear-resistant cooling liquid and preparation method thereof |
| CN103087798A (en) * | 2013-01-30 | 2013-05-08 | 内江海德科技有限公司 | Wire-drawing nanometer graphite lubricant of single crystal copper bonding wire and preparation method of lubricant |
| CN103695143A (en) * | 2013-12-05 | 2014-04-02 | 马鞍山市恒毅机械制造有限公司 | Cutting liquid containing nano-graphite and preparation method thereof |
| CN104560335A (en) * | 2014-12-30 | 2015-04-29 | 芜湖市润雨精密机械有限公司 | Semi-synthesis type rust preventive cutting fluid and preparation method thereof |
| CN105886086A (en) * | 2016-05-10 | 2016-08-24 | 合肥工业大学 | Environment-friendly high-water-based cutting fluid for metal machining |
| CN105886086B (en) * | 2016-05-10 | 2019-01-11 | 合肥工业大学 | A kind of high water-base cutting fluid of intermetallic composite coating environment-friendly type |
| CN106190480A (en) * | 2016-07-13 | 2016-12-07 | 天长市润达金属防锈助剂有限公司 | A kind of anti-rust metal cutting fluid of high lubricating property |
| CN109504518A (en) * | 2017-09-15 | 2019-03-22 | 南京美克斯精密机械有限公司 | A kind of metal working lubricant |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Changjiang Road, No. 66, No. Applicant after: Chen Qiang Address before: 250000, No. 3, No. 20, Guodian, Shizhong District, Shandong, Ji'nan Applicant before: Chen Qiang |
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Application publication date: 20110817 |