CN106566591B - The method that gas phase in-situ polymerization prepares solid lubricant film - Google Patents
The method that gas phase in-situ polymerization prepares solid lubricant film Download PDFInfo
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- CN106566591B CN106566591B CN201610927631.7A CN201610927631A CN106566591B CN 106566591 B CN106566591 B CN 106566591B CN 201610927631 A CN201610927631 A CN 201610927631A CN 106566591 B CN106566591 B CN 106566591B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/40—Lubricating compositions characterised by the base-material being a macromolecular compound containing nitrogen
- C10M107/44—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/044—Polyamides
- C10M2217/0443—Polyamides used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/08—Solids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The present invention relates to a kind of methods that gas phase in-situ polymerization prepares solid lubricant film.Gaseous monomer by being passed through different component occurs home position polymerization reaction to generate solid lubricant film, it is wear-resisting to play the role of anti-attrition in friction workpiece surface deposition.Two kinds of liquid monomer phthalic anhydrides (PA) and p-phenylenediamine (PPD) are heated as gaseous state respectively in individual heating device, then in molar ratio: 1:(0.3 ~ 3) respectively by friction workpiece surface continuous jet of the gas pipeline into the non-open container of high-temperature pressure.Wherein PA heating temperature is 270 DEG C ~ 320 DEG C, and PPD heating temperature is 250 DEG C ~ 300 DEG C.The non-closed container environment temperature of high temperature is 400 DEG C ~ 600 DEG C, obtained solid lubricant film can sustainable work for a long time under high temperature environment, substantially reduce the coefficient of friction of friction surface and specific wear rate.
Description
Technical field
The present invention relates to a kind of preparation methods of solid lubricant film, especially a kind of to pass through different component gaseous monomers in height
The method that temperature descends in-situ polymerization to generate solid lubricant film.
Background technique
In recent years, with the rapid development of the high-new industry such as automobile, Aeronautics and Astronautics, to material rubbing under the high temperature conditions
It is higher and higher to wipe performance requirement.Domestic common machine oil maximum operation (service) temperature is generally 200 DEG C, and same kind of products at abroad highest makes
With temperature also less than 400 DEG C.It therefore is a kind of most commonly seen solution in opposite grinding workpiece surface coating high-temperature solid lubrication coating
Scheme.
Under the high temperature conditions, the friction environment of friction devices is severe more than under room temperature, friction surface under the conditions of hot test
The high-temperature solid lubrication coating of coating is easy for being consumed, it is difficult to supplement, friction devices cannot be stablized and lasting lubrication
Protection, once being worn just cannot play the wear-resisting effect of anti-attrition, need to replace whole part, improve maintenance at
This.Traditional lubricating oil can replace supplement, but maximum operation (service) temperature only has 200 DEG C or so, is not used to hot environment
Under lubrication.Therefore it is proposed that gas phase lubriation material, gas convenient for conveying, by making gas in surface of friction pair reaction or
Deposition forms the substance with lubricating action and plays lasting lubricant effect.
Report that more vapor deposition solid lubricant film is mainly phosphoric acid salt material at present, this kind of solid lubricant film it is excellent
Point is that gas material can be continuously replenished, and lubricant effect can continue.And its shortcoming is that deposition film is divided when temperature is higher
Rapidly, the time for playing solid lubrication effect is of short duration, and the molecular weight of deposition film is not high, and lubricating function is lower for solution, including deposition
The molecular weight of decomposition product including carbon is lower, and lubricating effect is more limited.It obtains based on above-mentioned analysis, if gas material
It can be deposited on friction surface during high temperature friction and in-situ polymerization occurs, generate the solid lubrication of higher molecular weight
Film plays stronger lubricating function, and this lubricating film similarly has lubricating effect by the catabolite after high temperature degradation, and
Subsequent gas phase component constantly continues deposition polymerization in friction surface, forms circulation.The polymer agent formed in this way is than simple
Vapor deposition membrane lifetime it is long, solid lubricant effect greatly enhances.It can be by different gaseous monomer groups so developing one kind
Home position polymerization reaction occurs under part high temperature to be necessary to generate the new type high temperature solid lubrication method of solid lubricant film.
Summary of the invention
The present invention in view of the above-mentioned problems existing in the prior art, provides a kind of at high temperature by gas phases different in system
Monomer component occurs home position polymerization reaction to generate solid lubricant film, it is wear-resisting to play the role of anti-attrition in friction workpiece surface deposition
Method.
To achieve the goals above, the reaction mechanism that the present invention uses are as follows:
Two kinds of gaseous monomers are passed through in the non-open container of high-temperature pressure, in a reservoir the friction surface of friction pair part
Upper in-situ polymerization generates solid lubricant film, obtain under high temperature to the friction surface of friction pair part for a long time, can be continuously replenished
Solid lubricant effect.
Two kinds of above-mentioned gas phase components, are respectively adopted phthalic anhydride (PA), boiling point are as follows: 284 DEG C, chemical formula is such as
Under:
And p-phenylenediamine (PPD), boiling point are as follows: 267 DEG C, chemical formula is as follows:
1:1 reacts generation N- to phenylamino phthalimide to PA in molar ratio with PPD, and reaction equation is as follows:
2:1 reacts generation N- to two phthalimide of benzene to PA in molar ratio with PPD, and reaction equation is as follows:
It can also happen that polymerization reaction generates fragrant oligoamide when PA and PPD molar ratio 1:1, reaction equation is as follows:
According to above-mentioned reaction mechanism, the present invention adopts the following technical scheme:
A kind of method that the polymerization of gas phase high-temp in-situ prepares solid lubricant film, it is characterised in that by the O-phthalic after gasification
Acid anhydrides (PA) and p-phenylenediamine (PPD) press 1:(0.3~3) molar ratio, be 400 DEG C~600 DEG C friction workpiece surfaces to temperature
In friction workpiece surface home position polymerization reaction occurs for continuous jet, above two gaseous monomer, generates solid polymer, while high
Temperature carbonization, is deposited on friction workpiece surface, forms solid lubricant film.
The method that gas phase high-temp in-situ polymerization according to claim 1 prepares solid lubricant film, it is characterised in that described
The gasification temperature of phthalic anhydride (PA) and p-phenylenediamine (PPD) two kinds of liquid monomers is respectively as follows: 270 DEG C~320 DEG C and 250
DEG C~300 DEG C.
Above-mentioned two kinds of liquid monomers pass through be continuously replenished and control gasify after gas be transported to high-temperature pressure in proportion
Friction workpiece surface in non-open container, constantly generation solid lubricating film with high-temperature resistance.This method passes through gas different in system
Home position polymerization reaction occurs for phase monomer component to generate solid lubricant film, so that it is resistance to play anti-attrition in friction workpiece surface deposition
Mill effect.Compared with existing friction wear test method, the invention has the characteristics that:
1. the present invention is deposited for the lubrication of the friction surface under high-temperature work environment using gas phase lubriation material is passed through
In the method that friction surface forms solid lubricant film, the lubricant effect duration is longer, while lubriation material can be continuously replenished.
2. this method is passed through the gaseous monomer of two kinds of different components, raw by the home position polymerization reaction between two kinds of monomers
At polymeric solid lubricating film, this lubricating film is not easily decomposed at high temperature, is lasted a long time.Its decomposition product similarly has profit
Sliding effect, while new monomer is continuously replenished and reacts, solid lubricant film can be with circular regeneration.
Detailed description of the invention
Fig. 1 is to have lubrication and unlubricated friction pair average friction coefficient to vary with temperature curve.
Fig. 2 is to have lubrication and unlubricated friction pair specific wear rate to vary with temperature curve.
Specific embodiment
Specific embodiments of the present invention are described in further detail below.
Embodiment 1
Two kinds of liquid monomer phthalic anhydrides (PA) and p-phenylenediamine (PPD) heat respectively in individual heating device
As gaseous state, then in molar ratio: 1:3 passes through friction workpiece surface of the gas pipeline into the non-open container of high-temperature pressure respectively
Continuous jet.Wherein PA heating temperature is 270 DEG C, and PPD heating temperature is 250 DEG C.
The above-mentioned non-open container of high-temperature pressure, system temperature are 400 DEG C.At this temperature, above two gas phase list
Body occurs home position polymerization reaction in friction workpiece surface and generates solid polymer, is deposited on friction workpiece surface and forms solid lubrication
Film.
Embodiment 2
Two kinds of liquid monomer phthalic anhydrides (PA) and p-phenylenediamine (PPD) heat respectively in individual heating device
As gaseous state, then in molar ratio: 1:1 passes through friction workpiece surface of the gas pipeline into the non-open container of high-temperature pressure respectively
Continuous jet.Wherein PA heating temperature is 295 DEG C, and PPD heating temperature is 275 DEG C.
The above-mentioned non-open container of high-temperature pressure, system temperature are 500 DEG C.At this temperature, above two gas phase list
Body occurs home position polymerization reaction in friction workpiece surface and generates solid polymer, is deposited on friction workpiece surface and forms solid lubrication
Film.
Embodiment 3
Two kinds of liquid monomer phthalic anhydrides (PA) and p-phenylenediamine (PPD) heat respectively in individual heating device
As gaseous state, then in molar ratio: 1:0.5 passes through friction workpiece table of the gas pipeline into the non-open container of high-temperature pressure respectively
The continuous jet in face.Wherein PA heating temperature is 320 DEG C, and PPD heating temperature is 300 DEG C.
The above-mentioned non-open container of high-temperature pressure, system temperature are 600 DEG C.At this temperature, above two gas phase list
Body occurs home position polymerization reaction in friction workpiece surface and generates solid polymer, is deposited on friction workpiece surface and forms solid lubrication
Film.
Embodiment 4
Two kinds of liquid monomer phthalic anhydrides (PA) and p-phenylenediamine (PPD) heat respectively in individual heating device
As gaseous state, then in molar ratio: 1:0.3 passes through friction workpiece table of the gas pipeline into the non-open container of high-temperature pressure respectively
The continuous jet in face.Wherein PA heating temperature is 320 DEG C, and PPD heating temperature is 300 DEG C.
The above-mentioned non-open container of high-temperature pressure, system temperature are 600 DEG C.At this temperature, above two gas phase list
Body occurs home position polymerization reaction in friction workpiece surface and generates solid polymer, is deposited on friction workpiece surface and forms solid lubrication
Film.
Average friction coefficient and ratio mill at 400 DEG C to 600 DEG C are carried out to solid lubricant film prepared by above-described embodiment
Loss rate test, and compared with dry conditions, test result is as shown in Fig.1 and Fig.2.
Analysis obtains, at 400 DEG C to 600 DEG C, is passed through high-temp in-situ polymerizable gas monomer, is in the state of solid lubrication
The coefficient of friction and wear rate of system are all substantially reduced than non-lubricating status.Illustrate that PA/PPD system high-temperature in-situ polymerization generates solid
Lubricating film has good anti-friction wear-resistant effect at high temperature.The system reaches best lubricant effect at 600 DEG C.
Claims (2)
1. a kind of method that the polymerization of gas phase high-temp in-situ prepares solid lubricant film, it is characterised in that by the phthalic acid after gasification
Acid anhydride (PA) and p-phenylenediamine (PPD) press 1: the molar ratio of (0.3 ~ 3) is that 400 DEG C ~ 600 DEG C friction workpiece surfaces connect to temperature
In friction workpiece surface home position polymerization reaction occurs for continuous jet, above two gaseous monomer, generates solid polymer, while high temperature
Carbonization is deposited on friction workpiece surface, forms solid lubricant film.
2. the method that gas phase high-temp in-situ polymerization according to claim 1 prepares solid lubricant film, it is characterised in that the neighbour
The gasification temperature of phthalate anhydride (PA) and p-phenylenediamine (PPD) two kinds of liquid monomers be respectively as follows: 270 DEG C ~ 320 DEG C and 250 DEG C ~
300℃。
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| CN111173841B (en) * | 2020-01-03 | 2022-01-07 | 上海大学 | Gas-phase and gas/solid-phase in-situ polymerization solid lubricating system for high-temperature rolling bearing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418079A (en) * | 2008-11-27 | 2009-04-29 | 同济大学 | Method for preparing polyimide lubrication film containing fullerene additives |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418079A (en) * | 2008-11-27 | 2009-04-29 | 同济大学 | Method for preparing polyimide lubrication film containing fullerene additives |
Non-Patent Citations (3)
| Title |
|---|
| "The Friction and Wear Properties of the Spherical Plain Bearings with Self-lubricating Composite Liner in Oscillatory Movement";GUO Qiang等;《Journal of Wuhan University of Technology》;20041130;第19卷;第86-91页 |
| "粉未喷涂的聚合物基固体润滑涂层";高金堂等;《固体润滑》;19890131(第1期);第10-15页 |
| "高分子固体润滑耐磨涂层研究进展";乔红斌等;《机械工程材料》;20040229;第28卷(第2期);第1-3页 |
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