CN107974164A - A kind of friction coatings with the warning function that shines and preparation method thereof - Google Patents

A kind of friction coatings with the warning function that shines and preparation method thereof Download PDF

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Publication number
CN107974164A
CN107974164A CN201711184554.1A CN201711184554A CN107974164A CN 107974164 A CN107974164 A CN 107974164A CN 201711184554 A CN201711184554 A CN 201711184554A CN 107974164 A CN107974164 A CN 107974164A
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China
Prior art keywords
friction
powder
shines
warning function
oxide
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CN201711184554.1A
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CN107974164B (en
Inventor
吴红艳
张成远
夏於林
鲁小娅
谷卓欣
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B05D1/005—Spin coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/22—Luminous paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide

Abstract

The present invention relates to a kind of friction coatings with the warning function that shines and preparation method thereof, the compound friction powders such as the fluorescent powder that the oxide, graphene, different colours of the invention for using ball grinding stirring technique to prepare different ratio first shines, have been mixed into the luminescent powder of different colours in conventional friction powder；Above-mentioned composite granule is uniformly mixed with epoxyn and film forming agent followed by ultrasonic disperse technology, compound friction powder is formed good film-formation result in metal base surface；Finally the material containing compound friction powder is set uniformly to form a film in matrix surface using spin coating method, and the thickness and quality controllable to form a film.This method preparation is simple, quick, cost is low, is adapted to large area production.

Description

A kind of friction coatings with the warning function that shines and preparation method thereof
Technical field
The present invention relates to mechanical engineering and Surface Science field, and in particular to a kind of friction with the warning function that shines applies Layer and preparation method thereof.
Background technology
In mechanical equipment, some key positions are on active service under severe rugged environment, and the component that contacts with each other must in the case where rubbing repeatedly The damage of material surface can be caused, and the Detection ＆ Controling of damage location are always tribological field core urgently to be resolved hurrily asks Topic.In fact, people while material friction performance is paid attention to, but often have ignored some scripts under friction environment induction Faint physics, chemical effect can also be shown at the same time with the generation of the destructions such as friction surface plasticity, elasticity and fracture The significantly respondent behavior of sound, light, electricity and magnetic.The early warning behavior of friction process is mainly the physical signal by sound and light Feedback realize, wherein acoustical signal is to study the response modes of more mature wear out failure at present, but due to its must with it is to be measured Test specimen contacts, and is vulnerable to other electrical category noise jammings, and then limit the development and application of the detection method.With acoustical signal phase Than, the feedback of optical signal not only avoid with the contact of test specimen to be measured and from the influence of noise jamming, and in monitoring material During wear out failure can also Real-time Feedback material surface state (such as component, structure and deformation) change.Using hair can be produced The material of optical phenomenon is mixed with into friction system, the state of wear of friction process different phase is judged by luminous signal.
The content of the invention
The object of the present invention is to provide a kind of friction coatings with the warning function that shines and preparation method thereof, for friction During judge signal condition in Wear Process, proposition uses oxide, graphene, fluorescent powder, adhesive and film forming The different materials such as agent formula and ball-milling technology, prepare finely dispersed friction coatings system, this method prepare it is simple, quick, into This is low, is adapted to large area production.
The oxide, graphene, different colours that the present invention prepares different ratio using ball grinding stirring technique first shine The compound friction powder such as fluorescent powder, has been mixed into the luminescent powder of different colours in conventional friction powder；Followed by ultrasound Dispersion technology makes above-mentioned composite granule uniformly be mixed with epoxyn and film forming agent, compound friction powder is existed Metal base surface forms good film-formation result；Finally the material containing compound friction powder is set uniformly to exist using spin coating method Matrix surface forms a film, and the thickness and quality controllable to form a film.
Concrete technical scheme provided by the invention is：
A kind of method for preparing the friction coatings with the warning function that shines, comprises the following steps：
1) preparation of the compound friction powder containing different illuminators：
Fluorescent powder and oxide are taken, suitable absolute ethyl alcohol is added thereto, with 300:1-600:1 ratio of grinding media to material is put Enter and 18-24h is stirred in ball mill, and be put into ultrasonic disperse machine and carry out decentralized processing, obtain dispersed oxide；Exist again 0.3% graphene is added in above-mentioned dispersed oxide, is continued with 400:1-550:1 ratio of grinding media to material is by it in ball mill Mixing 10-14h is carried out with oxide, finally obtains oxide, fluorescent powder and graphene compound friction powder；
2) preparation of the laminated film containing different illuminators：
Compound friction powder is uniformly mixed with epoxy resin film forming system using ultrasonic disperse technology, make compound rub Crocus physical efficiency forms good film-formation result in metal base surface；Finally made using spin coating method containing compound friction powder Mixing material uniformly forms a film in matrix surface, and the thickness and quality controllable to form a film.
In step 1), the mass ratio of fluorescent powder and oxide is 1:3-1:5.
In step 2), epoxy resin film forming system is prepared as：With 40-50% epoxy resin, 10-20% polyamide resins Fat, 10-20% phenmethylol diluents, 10% OP-10 dispersants and 5% coupling agent, additional a small amount of defoamer, is mixed to prepare Epoxy resin-base.
In step 2), oxide, fluorescent powder and graphene composite powder are added in epoxy resin film forming system, fully Stirring.
In step 2), the fluorescent powder film forming matter mixed with different luminescent spectrums is spun on metal substrate respectively, and then Color change effect successively can be achieved.
Further, need after the complete each layer of spin coating by 100 ° of drying and processings 2 it is small when.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention can be implemented in the laminated film of illuminator of the different matrix surface coating containing different luminescent spectrums, and Realization monitoring can be carried out to the damage status of significant points by simple optical detection.Simple process and low cost, it is easily real Existing industrialization production, there is broader market prospects.
(2) present invention will have potential application prospect in terms of material damage, be fed back relative to more ripe acoustical signal Monitoring mode, avoids and is contacted with detection piece, while eliminates external environment to the interference of detection, it can be achieved that to material damage Accurately feed back in real time.
Brief description of the drawings
Fig. 1：(a) substrate, (b) oxide (Al2O3) doping fluorescent powder wear morphology.
Fig. 2：(a) substrate, (b) oxide (TiO2) doping fluorescent powder wear morphology.
Fig. 3：Containing Al2O3, graphene and fluorophor laminated film friction curve.The friction and wear behavior of laminated film The WTE-2E type controlled atmosphere micro tribology testing machines produced by Chinese Academy of Sciences's Lanzhou chemistry institute are tested, using ball- Disk fretting wear module, the silicon nitride for selecting a diameter of 6mm are to abrading-ball.The rotating speed that this experiment is set is 200r/min., test Time is each sample 30min, and the load applied is 200g, and sample carries out at normal temperatures.
Fig. 4：Containing TiO2, graphene and fluorophor laminated film friction curve, test method is same as above.
Fig. 5：Wear phenomenon of the laminated film containing green and blue-light emitting body in friction, (a) is table when not wearing Face fluorescence phenomenon, (b) are the fluorescence phenomenons of friction mid-term, and (c) is the fluorescence phenomenon for wearing the later stage.The present invention is by darkroom ring In border, a CCD camera is placed in sample surfaces, by the changing rule for observing the luminous signal in laminated film friction process The wear condition on Knowing material surface, it is clear that carry out luminous signal by the green gradually dimmed of top layer with friction, show It is light blue, it is more and more weaker with the increase signal of wear extent, then show that the degree of wear is more and more stronger.
Fig. 6：TiO2Luminescence phenomenon of-fluorescent powder the laminated film in friction.The present invention is by dark room conditions, in sample A CCD camera is placed on product surface, by the changing rule Knowing material for observing the luminous signal in laminated film friction process The wear condition on surface, it is clear that it is more and more weaker with the carry out luminous signal of friction, then show that the degree of wear is more and more stronger.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1：
(1) fluorophor and aluminium oxide (Al containing double-deck luminescent effect2O3) compound friction powder preparation：
Take the Al of 20g2O3From the fluorophor with different bluenesss and green luminescence spectra, divide the fluorescent powder of different colours Other and Al2O3According to 1:4 mass ratio, is charged with suitable absolute ethyl alcohol, with 500:1 ratio of grinding media to material puts it into ball milling 20h is stirred in machine, and is put into ultrasonic disperse machine and carries out decentralized processing, obtains dispersed Al2O3.In above-mentioned Al2O3In plus Enter 0.3% graphene, continue with 500:It is carried out mixing 12h by 1 ratio of grinding media to material in ball mill and oxide, finally To Al2O3, fluorescent powder and graphene composite powder.
(2) preparation of the laminated film containing double-deck luminescent effect：
The film forming system formulation of epoxy resin-matrix is prepared, with 45% epoxy resin, 15% polyamide, 15% phenmethylol Diluent, 10% OP-10 dispersants and 5% coupling agent, additional a small amount of defoamer.Then using made from the above method Al2O3, blue colour fluorescent powder and graphene composite granule, be added in obtained epoxy resin-base, process is fully dispersed Afterwards, be spun on metal (stainless steel) substrate, through 100 DEG C drying 2 it is small when after obtain the film of first layer illuminator, then with Same compound powder containing green-emitting phosphor is painted on the film surface and obtains second layer laminated film by same way again.Such as Fig. 1 show the wear morphology of the laminated film and matrix under 200g load and contrasts, it may be seen that by mixing Al2O3And graphite Grinding defect morphology substantially narrows after alkene combined processing, shoals, and the friction coefficient of Fig. 3 also indicates that, has after the combined processing Significant lubrication property, modified friction coefficient are reduced to average 0.35 or so by original 0.65, and with friction process Carry out, friction coefficient also helps to improve the frictional behaviour of metal surface in lasting reduction, this explanation, the compound system.The hair Bright another big characteristic is obtaining the change of its luminous signal in it can observe friction process with the change of the degree of wear Rule, this phenomenon as shown in Figure 5, with the progress of friction, with the loss of wear surface, the luminescent effect of friction surface Slowly changed from bright green to blue-green to blueness.
Embodiment 2：
(1) fluorophor containing single green emitting effect and titanium oxide (TiO2) compound friction powder preparation：
Take 20g TiO2, appropriate absolute ethyl alcohol is charged with, with 500:1 ratio of grinding media to material, which is put it into ball mill, to be stirred 20h, is then put into ultrasonic disperse machine by material, opens and reunites in suspension, so as to obtain dispersed TiO2, take out part As sample.Then green emitting phosphor is added toward remainder so that TiO2Mass ratio with fluorescent powder is 4:1, with 500:1 Ratio of grinding media to material, which is put into ball mill, stirs 12h, obtains TiO2With the composite granule of green-emitting phosphor.
(2) preparation of the laminated film containing different illuminators：
The film forming system formulation of epoxy resin-matrix is prepared, with 45% epoxy resin, 15% polyamide, 15% phenmethylol Diluent, 10% OP-10 dispersants and 5% coupling agent, additional a small amount of defoamer.Then using made from the above method TiO2, green emitting phosphor and graphene composite granule, be added in obtained epoxy resin-base, process is fully dispersed Afterwards, be spun on metal (stainless steel) substrate, through 100 DEG C drying 2 it is small when after obtain the laminated film of one layer of illuminator, such as scheme Shown in 5, with the progress of friction, with the loss of wear surface, the luminescent effect of friction surface also by bright green slowly Think that blue-green changes to blueness.It is illustrated in figure 2 the wear morphology of the laminated film and matrix under 200g load to contrast, by the figure As it can be seen that by mixing TiO2Grinding defect morphology substantially shoals after processing, and the friction coefficient of Fig. 4 also indicates that, after the combined processing With significant lubrication property, modified friction coefficient is reduced to average 0.35 or so by original 0.65, and with rubbed The progress of journey, friction coefficient also help to improve the frictional behaviour of metal surface in lasting reduction, this explanation, the compound system. Another big characteristic of the invention is obtaining its luminous signal in it can observe friction process with the change of the degree of wear Changing rule, this phenomenon as shown in Figure 6, with the progress of friction, with the loss of wear surface, the luminous effect of friction surface Should be also gradually dimmed by bright green.
The above, is only presently preferred embodiments of the present invention, not makees limitation in any form to the present invention, any ripe Professional and technical personnel is known, it is without departing from the scope of the present invention, real to more than according to the technical spirit of the present invention Apply any simple modification, equivalent substitution that example made and improve etc., still fall within technical solution of the present invention protection domain it It is interior.

Claims (6)

  1. A kind of 1. method for preparing the friction coatings with the warning function that shines, it is characterised in that：Comprise the following steps：
    1) preparation of the compound friction powder containing different illuminators：
    Fluorescent powder and oxide are taken, suitable absolute ethyl alcohol is added thereto, with 300:1-600:1 ratio of grinding media to material puts it into ball 18-24h is stirred in grinding machine, and is put into ultrasonic disperse machine and carries out decentralized processing, obtains dispersed oxide；Again above-mentioned 0.3% graphene is added in dispersed oxide, is continued with 400:1-550:1 ratio of grinding media to material is by it in ball mill and oxygen Compound carries out mixing 10-14h, finally obtains oxide, fluorescent powder and graphene compound friction powder；
    2) preparation of the laminated film containing different illuminators：
    Compound friction powder is uniformly mixed with epoxy resin film forming system using ultrasonic disperse technology, make compound friction powder Physical efficiency forms good film-formation result in metal base surface；Finally make the mixing containing compound friction powder using spin coating method Material uniformly forms a film in matrix surface, and the thickness and quality controllable to form a film.
  2. 2. the method according to claim 1 for preparing the friction coatings with the warning function that shines, it is characterised in that：Step 1) in, the mass ratio of fluorescent powder and oxide is 1:3-1:5.
  3. 3. the method according to claim 1 for preparing the friction coatings with the warning function that shines, it is characterised in that：Step 2) in, epoxy resin film forming system is prepared as：With 40-50% epoxy resin, 10-20% polyamides, 10-20% benzene first Alcohol diluent, 10% OP-10 dispersants and 5% coupling agent, additional a small amount of defoamer, is mixed to prepare epoxy resin-base.
  4. 4. the method according to claim 1 for preparing the friction coatings with the warning function that shines, it is characterised in that：Step 2) in, oxide, fluorescent powder and graphene composite powder is added in epoxy resin film forming system, are sufficiently stirred.
  5. 5. the method according to claim 1 for preparing the friction coatings with the warning function that shines, it is characterised in that：Step 2) in, the fluorescent powder film forming matter mixed with different luminescent spectrums is spun on metal substrate respectively, and then can realize successively Color change effect.
  6. 6. the method according to claim 5 for preparing the friction coatings with the warning function that shines, it is characterised in that：Spin coating Need after complete each layer by 100 ° of drying and processings 2 it is small when.
CN201711184554.1A 2017-11-23 2017-11-23 Friction coating with light-emitting early warning function and preparation method thereof Active CN107974164B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115466559A (en) * 2022-09-19 2022-12-13 中国科学院兰州化学物理研究所 Friction luminous paint

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219219A (en) * 2015-10-19 2016-01-06 国网浙江省电力公司湖州供电公司 A kind of novel wear resistant, protection against corrosion, Antistatic Paint and preparation method thereof
CN107246244A (en) * 2017-07-22 2017-10-13 北京工商大学 It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod and its processing technology

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219219A (en) * 2015-10-19 2016-01-06 国网浙江省电力公司湖州供电公司 A kind of novel wear resistant, protection against corrosion, Antistatic Paint and preparation method thereof
CN107246244A (en) * 2017-07-22 2017-10-13 北京工商大学 It is a kind of can early warning fracture occur alloy coating pumping rod/polish rod and its processing technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115466559A (en) * 2022-09-19 2022-12-13 中国科学院兰州化学物理研究所 Friction luminous paint

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