CN115926868B - Lubricant for super-slip system and super-slip system comprising lubricant - Google Patents
Lubricant for super-slip system and super-slip system comprising lubricant Download PDFInfo
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- CN115926868B CN115926868B CN202211316975.6A CN202211316975A CN115926868B CN 115926868 B CN115926868 B CN 115926868B CN 202211316975 A CN202211316975 A CN 202211316975A CN 115926868 B CN115926868 B CN 115926868B
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- 239000000314 lubricant Substances 0.000 title claims abstract description 46
- 239000004642 Polyimide Substances 0.000 claims abstract description 46
- 229920001721 polyimide Polymers 0.000 claims abstract description 46
- 229920013639 polyalphaolefin Polymers 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 12
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 10
- XNIOWJUQPMKCIJ-UHFFFAOYSA-N 2-(benzylamino)ethanol Chemical compound OCCNCC1=CC=CC=C1 XNIOWJUQPMKCIJ-UHFFFAOYSA-N 0.000 claims description 4
- JNTPTNNCGDAGEJ-UHFFFAOYSA-N 6-chlorohexan-1-ol Chemical compound OCCCCCCCl JNTPTNNCGDAGEJ-UHFFFAOYSA-N 0.000 claims description 4
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 claims description 2
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 claims description 2
- NXDMHKQJWIMEEE-UHFFFAOYSA-N 4-(4-aminophenoxy)aniline;furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1.C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O NXDMHKQJWIMEEE-UHFFFAOYSA-N 0.000 claims 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 abstract description 22
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 abstract description 22
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 abstract description 22
- 239000005642 Oleic acid Substances 0.000 abstract description 22
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 abstract description 22
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 abstract description 22
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 abstract description 22
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 26
- KJIOQYGWTQBHNH-UHFFFAOYSA-N undecanol Chemical compound CCCCCCCCCCCO KJIOQYGWTQBHNH-UHFFFAOYSA-N 0.000 description 26
- 238000005461 lubrication Methods 0.000 description 25
- 239000004973 liquid crystal related substance Substances 0.000 description 16
- 239000003921 oil Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 8
- 101150092791 PAO4 gene Proteins 0.000 description 7
- 239000004793 Polystyrene Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- ZWRUINPWMLAQRD-UHFFFAOYSA-N nonan-1-ol Chemical compound CCCCCCCCCO ZWRUINPWMLAQRD-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000005968 1-Decanol Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- -1 N-benzylaminoethanol (N-benzylethanolamine) Chemical compound 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- YZAZXIUFBCPZGB-QZOPMXJLSA-N (z)-octadec-9-enoic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O YZAZXIUFBCPZGB-QZOPMXJLSA-N 0.000 description 1
- VCJUVEWIBHJPHO-UHFFFAOYSA-N 6-chlorohexan-1-ol Chemical compound OCCCCCCCl.OCCCCCCCl VCJUVEWIBHJPHO-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000000329 molecular dynamics simulation Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 239000002861 polymer material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Lubricants (AREA)
Abstract
The invention provides a lubricant for an ultra-sliding system and the ultra-sliding system comprising the lubricant, wherein the ultra-sliding system is prepared by taking bearing steel/polyimide as a friction pair, taking monohydric alcohol, oleic acid or poly alpha-olefin synthetic oil as the lubricant, and the friction coefficient of the motion system is as low as 0.001 order, so that a stable ultra-low friction phenomenon is realized.
Description
Technical Field
The invention relates to the technical field of lubricating materials, in particular to a lubricant for an ultra-sliding system and the ultra-sliding system comprising the lubricant.
Background
At present, with technological progress, industrial technologies such as automobiles, aerospace, precise instruments and the like rapidly develop, higher requirements are put on lubricants, and advanced lubrication technologies have a larger development space, so that super lubrication technologies are particularly attractive. The phenomenon of superlubrication was first proposed by Japanese scientist M.Hirano et al in 1990, who found through theoretical calculations and molecular dynamics simulations that zero friction could occur when non-metric contact occurred between two perfectly clean atomically flat crystal planes. Until 2004 the netherlands scientist j.frenken et al measured the friction between graphene and the graphite substrate at different angles, found that the system had a large friction only at certain specific angles (0 ° and 60 °, etc.), while the friction of the system was very small at other angles. Very low friction phenomena with a coefficient of friction on the order of 0.001 or less have been observed in several systems for the last twenty years, and these are known together with the structural lubrication phenomena predicted by m.hirano et al as superlubrication phenomena.
Depending on the lubricating material, superlubrication can be divided into two main categories: solid super lubrication and liquid super lubrication. The key points of realizing the liquid super lubrication are as follows: under the external pressure, the stable existence of liquid molecules on the surfaces of the two friction pairs is ensured, and meanwhile, the low shear strength can be provided. Despite some progress in current liquid super-lubrication research, there is still a considerable distance from practical use.
Polyimide (PI) is an organic polymer material developed after the 50 th century of the 20 th century, and is considered as one of the most potential engineering materials in the century due to its outstanding high and low temperature resistance, excellent mechanical properties, diversified preparation methods, simple and feasible processing methods, and the like, and has wide application in various fields. Meanwhile, PI is also a solid self-lubricating material, but the problems of overlarge friction, high friction coefficient and the like still exist when PI is actually directly used as a self-lubricating wear-resistant material, so that lubricating liquid is often added when PI is used as a friction pair, and the whole system is ensured to be in a good lubricating state. At present, research has found that the polyimide/GCr 15 bearing steel auxiliary system under liquid crystal lubrication can generate an orientation super-lubrication phenomenon, but because the liquid crystal compound is relatively expensive and is not widely used in industrialization, the liquid crystal compound is required to use a lubricant which is easier to widely obtain, design and obtain a super-lubrication system which is easier to commonly use, expand the super-lubrication system and simultaneously provide a certain preparation for the super-lubrication system to be practical.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a lubricant for an ultra-sliding system and the ultra-sliding system comprising the lubricant, wherein the friction coefficient of the motion system is as low as 0.001 level, so that a stable ultra-low friction phenomenon is realized.
The technical scheme provided by the invention is as follows: a lubricant for a super-slip system, the lubricant selected from any one of monohydric alcohol, oleic acid, or poly-alpha-olefin (Poly Alpha Olefins, PAO) synthetic oil.
Further, the monohydric alcohol is selected from any one of N-octanol, N-nonanol, N-decanol, N-undecanol, 6-chloro-1-hexanol or N-benzylaminoethanol.
Further, the polyalphaolefin synthetic oil is selected from any one of low viscosity polyalphaolefins.
A super-slip system uses monohydric alcohol, oleic acid or poly alpha-olefin synthetic oil as lubricant and bearing steel/polyimide as friction pair.
Use of a monohydric alcohol as a lubricant, bearing steel/polyimide as a friction pair, in an ultra-slip system.
The use of oleic acid as a lubricant, bearing steel/polyimide as a friction pair, in a super-slip system.
The use of a polyalphaolefin synthetic oil as a lubricant, bearing steel/polyimide as a friction pair, in an ultra-slip system.
Further, the polyimide is a PMDA-ODA polyimide material and is polymerized by pyromellitic dianhydride and 4,4' -diaminodiphenyl ether.
Further, the bearing steel is GCr15 bearing steel.
The application of monohydric alcohol, oleic acid or poly alpha-olefin synthetic oil in an ultra-smooth system is provided, wherein the monohydric alcohol, oleic acid or poly alpha-olefin synthetic oil is used as a lubricant of mechanical parts, and bearing steel and polyimide are used as auxiliary materials of the mechanical parts.
The poly alpha-olefin synthetic oil (PAO) is artificially synthesized oil, so that impurities can be manually avoided, the PAO has good viscosity-temperature performance and low-temperature fluidity, and the PAO has a neat molecular structure, belongs to saturated hydrocarbon and nonpolar molecules, and has stable physical and chemical properties. Is less susceptible to oxidation in use than mineral oil. Monohydric alcohols or oleic acid are one common type of polar organic molecule. Compared with expensive liquid crystal materials, the monohydric alcohol, oleic acid or poly alpha-olefin synthetic oil has wide sources and low price, and is widely popularized and used. In the existing alignment super-lubrication system of polyimide/GCr 15 bearing steel pair under liquid crystal lubrication, the liquid crystal molecules used are nematic rod-shaped liquid crystal molecules, the liquid crystal molecules are one-dimensional ordered phases, and the long axes of the molecules are basically arranged in parallel along one direction. The liquid crystal used as a lubricant plays a role in lubrication in a system mainly by relying on the characteristic of anisotropy of liquid crystal molecules in a liquid crystal state, the liquid crystal molecules have fluidity similar to that of common liquid in the liquid crystal state, the molecules are not arranged into layers, the molecules can slide up and down, left and right and front and back, but the long axis directions of the molecules are kept parallel or nearly parallel to each other, short-range interaction among the molecules is weak, the viscosity of the liquid crystal of the type is small and rich in fluidity, and under the action of friction, rod-shaped liquid crystal molecules can generate an orientation super-slip action under the action of the anchoring force of polyimide. The mechanism of the super-slip action of the system of the PI/GCr15 bearing steel pair under the lubrication of the substances is found to be related to molecular structural parameters such as solvent accessible area, charge space distribution condition, hydrogen bond forming capacity and the like of lubricant molecules through calculation, namely the application of the monohydric alcohol, oleic acid or poly-alpha-olefin synthetic oil in an ultra-low friction system has completely different mechanism and characteristics from the application of the liquid crystal molecules in the super-slip system, and the monohydric alcohol, oleic acid or poly-alpha-olefin synthetic oil plays a lubricating role in the corresponding friction system so that the system reaches a super-slip state, and the application range of the super-slip agent is wider.
Drawings
FIG. 1 is a molecular structural formula of a PMDA-ODA type polyimide material used in the present invention;
FIG. 2 is a graph of the coefficient of friction over time for a GCr15/PI (PMDA-ODA) formulation according to the invention lubricated with N-octanol, N-nonanol, N-decanol, 6-chloro-1-hexanol, or N-benzylaminoethanol, respectively;
FIG. 3 is a graph of the coefficient of friction over time for a GCr15/PI (PMDA-ODA) pair lubricated with n-undecanol according to the present invention;
FIG. 4 is a graph showing the change of friction coefficient with time under the lubrication of GCr15/PI (PMDA-ODA) matched pair with oleic acid;
FIG. 5 is a graph showing the change of friction coefficient with time for different rotational speeds under a PAO4 lubrication GCr15/PI (PMDA-ODA) pair of the present invention;
FIG. 6 is a graph of the coefficient of friction over time for a GCr15/GCr15 pair lubricated with n-undecanol or oleic acid, respectively, according to the present invention;
FIG. 7 is a graph of the coefficient of friction over time for a GCr15/PS pair lubricated with oleic acid in accordance with the present invention;
FIG. 8 is a graph showing the coefficient of friction over time for a GCr15/PE pair lubricated with n-undecanol, oleic acid or PAO4, respectively, according to the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and drawings.
In the following examples, a micro friction test was performed by using a UTM-3 type micro friction tester (Bruce, germany). In the test, GCr15 steel balls (with the diameter of 4.76 mm) are used as static test pieces, PMDA-ODA type polyimide materials are attached to a fixed disc to be used as disc test pieces in rotary motion, the disc test pieces rotate at corresponding rotating speeds, and the radius of an annular friction path is 8.5mm. The test load is applied vertically through the center line of the ball test piece and the test is performed in a point-to-surface contact mode. Under the loading condition of 5N, 0.1-0.2ml of lubricant is dripped between the GCr15 steel ball and the PMDA-ODA polyimide material, and the test is carried out at room temperature. During the test, the coefficient of friction (coefficient of friction, COF) was recorded automatically by a computer and then calculated by software to obtain the average coefficient of friction.
Example 1
The test of each 1h of friction coefficient over time was performed on a different friction pair with N-octanol (1-octanol), N-nonanol (1-nonanol), N-decanol (1-decanol), 6-chloro-1-hexanol (6-chlorohexanol) or N-benzylaminoethanol (N-benzylethanolamine) as lubricant for the motion system under the GCr15/PI (PMDA-ODA) pair, rotating at 250rpm, respectively, and the friction coefficient over time as shown in fig. 2, wherein 5N- (1-octanol) -GCr15/PI (PMDA-ODA)/250 rpm, indicates N-octanol lubrication under 5N load, GCr15/PI (PMDA-ODA) pair rotating at 250rpm, friction coefficient over time as shown in the graph of 5N- (1-nonanol) -GCr15/PI (PMDA-ODA)/250rpm, 5N- (1-decanol) -GCr15/PI (PMDA)/250 rpm, and the like, and so on.
The average friction coefficient for this process is reported in table 1. Friction systems with N-octanol, N-nonanol, N-decanol, 6-chloro-1-hexanol or N-benzylaminoethanol, respectively, as lubricants were all in an ultra-slip state during the test.
TABLE 1 average Friction coefficient of systems with different liquid lubrication GCr15/PI (PMDA-ODA) auxiliary
Example 2
The friction coefficient of the running system under the condition that N-undecanol (1-undecanol) is used as a lubricant of the running system under the condition that the GCr15/PI (PMDA-ODA) pair rotates at the rotating speed of 250rpm, the test is carried out for 3 cycles on the same friction pair for 1 hour, the friction coefficient time-varying graph is shown in figure 3, wherein 5N- (1-undecanol) -GCr15/PI (PMDA-ODA)/250 rpm/1 is shown in the graph, the N-undecanol lubrication is carried out under the condition that the GCr15/PI (PMDA-ODA) pair rotates at the rotating speed of 250rpm under the condition that the 5N load is represented, the friction coefficient time-varying graph is 5N- (1-undecanol) -GCr15/PI (PMDA-ODA)/250 rpm/2,5N- (1-undecanol) -GCr15/PI (PMDA-ODA)/250 rpm/3 in the first test period, and the like.
The average friction coefficient for this process is reported in table 2. When n-undecanol is used as a lubricant, the system is in an ultra-smooth state during the test.
TABLE 2 average coefficient of friction per test cycle for n-undecanol lubricated GCr15/PI (PMDA-ODA) formulation
Example 3
Oleic acid (oleic acid) was used as a lubricant for the motion system under the GCr15/PI (PMDA-ODA) pair, and the motion system was rotated at 250rpm, and 3 cycles of 1 hour each were performed on the same friction pair. The coefficient of friction is plotted against time as shown in fig. 4, which is a graph illustrating that of example 2.
The average friction coefficient for this process is reported in table 3. When oleic acid was used as a lubricant, the system was in an ultra-slip state during the test.
TABLE 3 average coefficient of friction per test cycle for oleic acid lubricated GCr15/PI (PMDA-ODA) formulation
Example 4
The friction test of 1 hour each at different rotational speeds was performed on the same friction pair using low viscosity PAO4 as a lubricant for the motion system under GCr15/PI (PMDA-ODA) pair, and the friction coefficient was plotted as a function of time as shown in FIG. 5, wherein the graph illustrates example 1.
The average friction coefficient for this process is reported in table 4. Friction systems with PAO4 as lubricant at different speeds were all in an ultra-slip state during the test.
TABLE 4 average Friction coefficient of GCr15/PI (PMDA-ODA) lubrication for PAO4 at different speeds
Comparative example 1
The friction coefficient was plotted against time for each 1h in a different friction pair, lubricated with n-undecanol or oleic acid, with GCr15/GCr15 pair rotating at 250rpm, and the graph of the friction coefficient is shown in FIG. 6, wherein the graph illustrates example 1. In the process, when the two substances are used as lubricants respectively, the friction coefficient is always larger, when n-undecanol is used as the lubricant, the average friction coefficient of the system is 0.09296, when oleic acid is used as the lubricant, the average friction coefficient of the system is 0.08030, both the friction coefficient and the average friction coefficient are larger than 0.001 order of magnitude, and both the two movement systems are not in an ultra-sliding state.
Comparative example 2
The test was carried out with oleic acid lubrication, GCr15/PS (polystyrene, polystyrene, PS) coupled, rotating at 250rpm, for 1h, and when the test was carried out for 25min, a drastic up-down shift in the friction coefficient occurred, so that the test stopped. The recorded test results for 25min are shown in FIG. 7, where the graph illustrates the same as example 1. The average coefficient of friction of the system during recording was 0.01916, which was on the order of greater than 0.001, indicating that the locomotion system was not in an ultra-slippery state.
Comparative example 3
The friction coefficient is plotted against time as shown in FIG. 8, wherein the graph is illustrated in example 1, with n-undecanol, oleic acid or PAO4 lubrication, GCr15/PE (Polyethylene, PE) co-formulation, rotation at 250rpm, and each 1h test on a different friction pair. In the process, when the three substances are used as lubricants, the friction coefficient is always larger, the average friction coefficient of a system is 0.02930 when n-undecanol is used as the lubricant, the average friction coefficient of a system is 0.02641 when oleic acid is used as the lubricant, the average friction coefficient of a system is 0.03052 when PAO4 is used as the lubricant, the friction coefficient is larger than 0.001 order of magnitude, and all the three movement systems are not in an ultra-slip state.
The test results show that: under the lubrication of corresponding liquid reagents, when the GCr15/GCr15 pair, the GCr15/PS pair or the GCr15/PE pair are matched, the friction coefficient of an operation system does not reach the order of 0.001, the super-slip phenomenon is not realized, and when the monohydric alcohol, the oleic acid or the poly alpha-olefin synthetic oil provided by the invention is used as a lubricant, the friction between friction pairs can be effectively reduced, and the friction coefficient in a stable motion state is low to the order of 0.001, so that the super-slip behavior of the system is realized.
The foregoing is merely illustrative embodiments of the present invention, and the present invention is not limited thereto, and any changes or substitutions that may be easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (8)
1. A lubricant for an ultra-slip system, wherein the lubricant is selected from any one of monohydric alcohol or poly-alpha olefin synthetic oil, and the friction pair of the ultra-slip system is bearing steel/polyimide.
2. The lubricant for an ultra-smooth system according to claim 1, wherein the monohydric alcohol is selected from any one of N-octanol, N-nonanol, N-decanol, N-undecanol, 6-chloro-1-hexanol, or N-benzylaminoethanol.
3. The lubricant for an ultra-smooth system according to claim 1, wherein the poly-alpha-olefin synthetic oil is selected from any one of low viscosity poly-alpha-olefins.
4. An ultra-slip system characterized by using monohydric alcohol or poly alpha-olefin synthetic oil as a lubricant and bearing steel/polyimide as a friction pair.
5. The ultra-slip system of claim 4, wherein the polyimide is a PMDA-ODA polyimide material polymerized from pyromellitic dianhydride and 4,4' -diaminodiphenyl ether.
6. The ultra-slip system of claim 4, wherein the bearing steel is GCr15 bearing steel.
7. Use of a monohydric alcohol in an ultra-slip system, wherein the monohydric alcohol acts as a lubricant and the bearing steel/polyimide acts as a friction pair, forming the ultra-slip system.
8. The application of the poly alpha-olefin synthetic oil in an ultra-sliding system is characterized in that the poly alpha-olefin synthetic oil is used as a lubricant, and bearing steel/polyimide is used as a friction pair to form the ultra-sliding system.
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