CN1038045C - Single component long-acting dry film lubricant - Google Patents

Single component long-acting dry film lubricant Download PDF

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Publication number
CN1038045C
CN1038045C CN94116246A CN94116246A CN1038045C CN 1038045 C CN1038045 C CN 1038045C CN 94116246 A CN94116246 A CN 94116246A CN 94116246 A CN94116246 A CN 94116246A CN 1038045 C CN1038045 C CN 1038045C
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China
Prior art keywords
dry film
film lubricant
dry
lubricant
epoxy
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Expired - Fee Related
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CN94116246A
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CN1120579A (en
Inventor
高金堂
毛绍兰
朱化
周惠娣
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Lanzhou Institute of Chemical Physics LICP of CAS
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Lanzhou Institute of Chemical Physics LICP of CAS
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Priority to CN94116246A priority Critical patent/CN1038045C/en
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Abstract

The present invention provides a dry film lubricant with good performance of corrosion resistance and temperature resistance, which has a single component and is prepared by a method that epoxy resin is used as a binding agent, molybdenum disulfide is used as a solid lubricant, and a latent curing agent, a corrosion resistance agent and the like are contained. The dry film lubricant is characterized in that the tightness of the dry film lubricant is increased by the technical processing of chemical modification, strong dispersing, etc., and the performance of lubrication, corrosion resistance, moisture resistance, oil resistance, shock resistance, and the like can be enhanced comprehensively; the paint storage period is 2 to 3 times of the storage period of other dry film lubricants. After the dry film lubricant is applied to some position of an airplane for 1000 hours, the effective lubrication is still kept.

Description

Single component long-acting dry film lubricant
The present invention relates to a kind of single component long-acting dry film lubricant and preparation method thereof.
The secure bond of dry-film lubricant and ground, good lubrication and high bearing capacity are to its three basic fundamental requirements.Because the application of dry-film lubricant has expanded to industries such as traffic, machinery, metallurgy, building from aerospace, applying working condition is complicated in recent years.Except that requiring dry-film lubricant to hang down frictional wear, outside the anti-extreme pressure, also must possess over-all propertieies such as anti-dielectric corrosion, high-low temperature resistant, anti-impact antivibration, long storage.
The object of the present invention is to provide a kind of energy to adapt to multiple operation condition, anticorrosive, heat resistance is good, anti-high loading, grease-proof single component dry-film lubricant and preparation method thereof, be 2-3 times of other epoxy dry-film lubricant its storage period, can reach 1000 hours work-ing life.
The present invention realizes by following measure:
The present invention is binding agent with Resins, epoxy, and molybdenumdisulphide is solid lubricant, and Dicyanodiamide is a solidifying agent, and butyronitrile 40 is as chemical modifier, Sb 2O 3Be resist, and added auxiliary lubricant, toughner, coupling agent etc.The prescription of its weight percent comprises: Resins, epoxy 10～25, molybdenumdisulphide 40～75, Dicyanodiamide 1.2～3, butyronitrile 402～9, Sb 2O 3～6, auxiliary lubricant 4.5～12, tritolyl phosphate 1～3, γ-An Jibingjisanyiyangjiguiwan 1～3.
Binding agent of the present invention is F44 novolac epoxy and AG80 Resins, epoxy, the amount ratio F of the two 44: AG80=10: 0～3 (weight ratio).
F 44Contain two epoxy group(ing) and a hydroxyl in the molecular structure of novolac epoxy, oxirane value 0.44-0.47N/100g.Contain four epoxy group(ing) in AG80 Resins, epoxy a part, oxirane value is 0.75-0.85N/100g.
More than two kinds of Resins, epoxy high epoxy value is arranged, it is big to solidify the back cross-linking density, strong with the bonding of ground, but fragility is big.Thereby during as the binding agent of dry-film lubricant,, must carry out chemical modification to them even in than the fricting movement under the underload, also may cause peeling off of dry film.
The present invention is with the properties-correcting agent of butyronitrile 40 as Resins, epoxy.The molecular structural formula of butyronitrile 40 is:
HOOC-R (CH 2-CH=CH-CH 2) m(3CH 2-CH) nIts carboxylic value of R-COOH is 0.05～0.06N/100g, and acrylonitrile content is 25-30%.
Auxiliary lubricant PbO of the present invention, Pb 3O 4And CeF 3, can use separately, also can PbO-CaF 3Or Pb 3O 4-CeF 3(its weight ratio is PbO or Pb to combo 3O 4: CeF 3=1: 0.15).
The preparation method of dry-film lubricant of the present invention comprises:
(1) pre-treatment of solid ingredient: curing aluminium must be handled through washing-drying-grinding-screening, and all the other insoluble solids components are handled through grinding-screening;
(2) chemical modification of binding agent: Resins, epoxy and butyronitrile 40 are carried out the prepolymerization reaction concrete grammar: be dissolved in Resins, epoxy and butyronitrile 40 in the mixed solvent altogether according to a certain ratio, make catalyzer with organic phosphine, 80-120 ℃ and constantly stir under carry out fatization, promptly obtain a kind of brown transparent liquid after 2-3 hour.
(3) after above-mentioned processing with whole materials thorough mixing in proportion, and add mixed solvent and carried out wet-milling 24 hours, after powerful again the dispersion, promptly make the agent of this dry film lubrication.Wherein the volume of material in the mixed solvent is than being dehydrated alcohol: acetone: 1,4 dioxane: toluene=1～3: 1: 1: 0.5～1, and the weight ratio of prescription gross weight and mixed solvent is 1: 3～5.
The coating method of dry-film lubricant of the present invention is:
(1) pre-treatment of substrate: the surface of friction of carbon steel part must be through sandblast-alramenting-organic solvent clean, and stainless steel, aluminium alloy, titanium alloy component surface of friction clean or sandblast-organic solvent clean through organic solvent.The sandblast condition: granularity is a 50-150 purpose quartz sand, does spray, sandblast air pressure: 0.5-0.6MPa.
(2) coating: can adopt spraying, dip-coating or roller coating, but to spray to good air pressure during spraying: 0.1～0.2MPa.
(3) condition of cure: 180 ℃ * 2h or 190 ℃ * 1.5h.
The present invention promptly provides a kind of can adapt to multiple application operating mode, and the dry-film lubricant of energy long storage, and its characteristics are:
(1) epoxy adhesive is carried out chemical modification, made and solidify the high fine and close network structure that back dry-film lubricant formation contains rubber phase, improved cohesiveness, snappiness, the anti-corrosion and anti-impact antivibration ability of dry film.
(2) selecting Dicyanodiamide is the single curing agent of Resins, epoxy, is guaranteeing on other well behaved basis, makes extended pot life to 1～1.5 year of this dry film lubrication agent coating, for the 2-3 of other Resins, epoxy dry-film lubricant doubly.
(3) with resistant to elevated temperatures F 44Make binding agent with AG80 Resins, epoxy, make the agent of this dry film lubrication have broad use temperature scope :-80～+ 260 ℃.
(4) not graphitiferous and metal of this dry-film lubricant through to the chemical modification of binding agent with add necessary resist, makes its anti-dielectric corrosion performance good.
The technical feature of table 1 dry-film lubricant of the present invention
Project Index The method of inspection
Color and apparent thickness, μ m frictional wear *Wear resistance, m/ μ m frictional coefficient sticking power, the level shock strength, the kgcm snappiness, mm salt fog resistance (100h, 35 ℃) (80 ℃-260 ℃ of humidity resistance thermostabilitys, three circulations) oil-proofness (gasoline, kerosene, lubricating oil) package stability, 1-1.5 Even grey black look, level and smooth nothing depression, free of pinholes, flawless, no particle 5～15 〉=260 0.10-0.13 1 50 1 qualified 1 are apparent constant apparent constant with the constant dry film performance of making of sticking power with sticking power Range estimation dial indicator GB1720-79 GB1732-79 GB1731-79 GB174-79
* the method for inspection: on the MHK-500 wear testing machine, the 32kg load, dry-film lubricant and carburizing steel loop are to rubbing under the 1000rpm rotating speed.
Embodiment 1: Resins, epoxy 1.6g, MoS 22.8g, Dicyanodiamide 0.14g, CeF 30.2g, Sb 2O 30.2g, tritolyl phosphate and γ-An Jibingjisanyiyangjiguiwan respectively are 0.2g, butyronitrile 400.2g, compound method: be dissolved in Resins, epoxy and butyronitrile 40 in the solvent altogether, make catalyzer with organic phosphine, reacted 3 hours down at 80 ℃-120 ℃, gained solution mixes with other material, wet-milling disperses promptly to get dry-film lubricant coating.The dry film made from this proportioning is applied to 1Cr 18Ni 9On the Ti stainless steel test block, on the MHK500 wear testing machine, 32kg load, 1000rpm rotating speed down and the carburizing steel loop to rubbing wear-out life 260～300m/ μ m of dry-film lubricant, frictional coefficient 0.10～0.13.
Embodiment 2: Resins, epoxy 0.8g, MoS 22.2g, Dicyanodiamide 0.10g, PbO and CeF 3Total amount 0.5g, Sb 2O 30.3g, butyronitrile 40 0.2g, all the other are an amount of.Made dry-film lubricant is applied to aircraft with on the carburizing bevel pinion, is dipped in the machine oil and moves 1000h under high moment of torsion, and nothing is peeled off, and is lubricated good.
Embodiment 3, Resins, epoxy 1.5g, MoS 23.2g, Dicyanodiamide 0.13g, PbO0.6g, Sb 2O 30.3g, butyronitrile 40 0.4g, all the other are an amount of.The dry film of making is applied on the high quality carbon steel plate after the phosphatization, and at 35 ℃, behind the test 100h, the dry film corrosion resistance nature is qualified in the 5%NaCl salt fog.
Embodiment 4: Resins, epoxy 0.9g, MoS 22.5g, Dicyanodiamide 0.15g, Pb 3O 4And CeF 3Total amount 0.3g, Sb 2O 30.2g, butyronitrile 400.7g, other is an amount of.The dry-film lubricant of making is applied on the M25 nut of building machinery ram engine, and 1 year back nut non-corroding is easy to removal and installation.
Embodiment 5: Resins, epoxy 1.0g, MoS 22.8g, Dicyanodiamide 0.15g, Pb 3O 40.4g, Sb 2O 30.2g, butyronitrile 40 0.3g, other is an amount of, and the dry film of making is applied on the vertisplane water screw tumbler pin, and operation is 1000 hours in the atmosphere, the dry film good-looking, tumbler pin is easy to removal and installation.
Embodiment 6: adopt and be coated in 1Cr with the dry film of embodiment 5 identical proportionings 18Ni 9On the Ti stainless steel plate, through the test of shaking of-80 ℃ →+260 ℃ continuous cycling hot, the apparent no change of dry film, 1 grade of sticking power, rub(bing)test result: wear resistance 255m/ μ m, frictional coefficient 0.11-0.13.
Embodiment 7: adopt the dry film of the prescription identical with embodiment 3 to be coated on certain mine ore dressing flotation cover, improve 3～5 times the work-ing life of flotation cover.

Claims (4)

1, a kind of single component dry-film lubricant is characterized in that concrete weight percent prescription comprises:
Resins, epoxy 10～25
Molybdenumdisulphide 40～75
Dicyanodiamide 1.2～3
Butyronitrile 40 2～9
Antimonous oxide 3～6
Tritolyl phosphate 1～3
γ-An Jibingjisanyiyangjiguiwan 1～3
PbO, Pb 3O 4And CeF 34.5～12.
2, dry-film lubricant as claimed in claim 1.It is characterized in that tackiness agent is F44 novolac epoxy and AG80 Resins, epoxy, the two weight ratio is F44: AG80=10: 0～3.
3, dry-film lubricant as claimed in claim 1, the carboxylic value that it is characterized in that butyronitrile 40 is 0.05～0.06N/100g, acrylonitrile content is 25～30%.
4, dry-film lubricant as claimed in claim 1 is characterized in that PbO, Pb 3O 4And CeF 3, can use separately, also can PbO-CeF 3Or Pb 3O 4-CeF 3Cooperate, its weight ratio is PbO (or Pb 3O 4): CeF 3=1: 0.15
CN94116246A 1994-10-08 1994-10-08 Single component long-acting dry film lubricant Expired - Fee Related CN1038045C (en)

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Application Number Priority Date Filing Date Title
CN94116246A CN1038045C (en) 1994-10-08 1994-10-08 Single component long-acting dry film lubricant

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Application Number Priority Date Filing Date Title
CN94116246A CN1038045C (en) 1994-10-08 1994-10-08 Single component long-acting dry film lubricant

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CN1120579A CN1120579A (en) 1996-04-17
CN1038045C true CN1038045C (en) 1998-04-15

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1059226C (en) * 1996-12-29 2000-12-06 中国科学院兰州化学物理研究所 Thixotropic dry film lubricant
CN1083479C (en) * 1997-09-25 2002-04-24 中国科学院兰州化学物理研究所 High-temp. dry film lubricant
CN1059224C (en) * 1998-10-08 2000-12-06 中国科学院兰州化学物理研究所 Corrosionproof lubricant coating based on molybdenum disulfide
CN102146252A (en) * 2011-03-11 2011-08-10 兰州工业研究院 Method for preparing coating for lubricating chute
CN106947573B (en) * 2017-03-30 2020-05-05 安徽工业大学 Adjustable-density novolac epoxy polymer block and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032550A (en) * 1987-10-10 1989-04-26 中国科学院兰州化学物理研究所 White solid lubricant film forming paste
WO1989008139A1 (en) * 1988-02-24 1989-09-08 Elf France Method for synthesizing greases permitting good control of their mechanical behaviour, and greases so obtained
US5252249A (en) * 1990-04-26 1993-10-12 Bridgestone Corporation Powder and electrorheological fluid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032550A (en) * 1987-10-10 1989-04-26 中国科学院兰州化学物理研究所 White solid lubricant film forming paste
WO1989008139A1 (en) * 1988-02-24 1989-09-08 Elf France Method for synthesizing greases permitting good control of their mechanical behaviour, and greases so obtained
US5252249A (en) * 1990-04-26 1993-10-12 Bridgestone Corporation Powder and electrorheological fluid

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