DE1937390A1 - Solid boron cpds used as additives to plastics - with sliding surface properties - Google Patents

Solid boron cpds used as additives to plastics - with sliding surface properties

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Publication number
DE1937390A1
DE1937390A1 DE19691937390 DE1937390A DE1937390A1 DE 1937390 A1 DE1937390 A1 DE 1937390A1 DE 19691937390 DE19691937390 DE 19691937390 DE 1937390 A DE1937390 A DE 1937390A DE 1937390 A1 DE1937390 A1 DE 1937390A1
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Germany
Prior art keywords
sliding
boron
addition
solid boron
sliding surface
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Pending
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DE19691937390
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German (de)
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Kaehne Heinz Herbert
Behncke Dr Hermann
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BEHNCKE DR HERMANN
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BEHNCKE DR HERMANN
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Priority to DE19691937390 priority Critical patent/DE1937390A1/en
Publication of DE1937390A1 publication Critical patent/DE1937390A1/en
Pending legal-status Critical Current

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    • 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
    • C08K3/38—Boron-containing compounds
    • 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
    • C10M7/00—Solid or semi-solid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single solid or semi-solid substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/061—Carbides; Hydrides; Nitrides
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/16—Carbon dioxide
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/18—Ammonia
    • 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
    • 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
    • C10M2217/045—Polyureas; Polyurethanes
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/46—Textile oils
    • 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
    • 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
    • C10N2050/10—Semi-solids; greasy

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Lubricants (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

Boron cpds. with graphite-like hexagonal lattice structure such as boron nitride and sodium borate, in form of thin small foils and added as sliding or lubricating agents to plastics materials having sliding surface, esp. polyamide surface; boron cpds. is incorporated in powder form before or during polymerisation. Polyamide/boron cpd. material may be used as sliding coating on metal or non-metal objects.

Description

"FESTE BORVERBINDUNGEN MIT BLÄTTSCHENSTRUKTUR ALS ZUSÄTZLICHE GLEIT- UND SCHMIRMITTEL ZU ALS GLEIT- UND LAGERMATERIAL VERWENDETEN KUNSTOFFEN:" Die Kunststoffe finden eine fortschreitende Verwendung als Gleit-und Lagermaterial. Außer den Phenoplasten werden dieserhalb auch das Polytetrafluoräthylen und auch das Polytrifluormonochloräthyen als Lager- und Gleitmaterial eingesetzt, sowie vor allein auch die Polyamide, Die Polyamide bedürfen da einer besonderen Erwähnung, insofern als ihnen auf Grund ihrer Kettentstruktur schon eine gewisse Gleitfähigkeit innewohnt. Es würde aber ihrer generellean Eignung und Verwendung als Gleit- und Lagermaterial zweifellos noch sehr förderlich sein, wenn sich diese bereits vorhandene Gleitfähigkeit noch um etliches steigern ließe. Der Reibungswiderstand und der Abnutzungsgrad sowohl des Lagermaterials als auch des Kontaktmaterials mit diesem würden weiter absinken."FIXED BORROW CONNECTIONS WITH LEAF STRUCTURE AS ADDITIONAL SLIDING AND GLUE AGENTS FOR PLASTICS USED AS SLIDING AND BEARING MATERIAL: "The plastics are increasingly used as sliding and bearing material. Except for the phenoplasts This is why polytetrafluoroethylene and polytrifluoromonochloroethene are also used used as a bearing and sliding material, as well as, above all, the polyamides, Die Polyamides deserve a special mention, insofar as they are based on them Chain structure already has a certain gliding ability inherent in it. But it would be hers In general, suitability and use as a sliding and bearing material is undoubtedly still can be very beneficial if this pre-existing lubricity is still around a lot could be increased. The frictional resistance and the degree of wear of both the Storage material as well as the contact material with this would continue to sink.

Im übrigen mag noch darauf hingewiesen sein, daß und warum speziell die Polyamide sich vielenorts als Metallersatz anbieten: wegen ihrer hohen Härte und Bruchfestigkeit und geringen Sprödigkeit, wegen ihrer realtiv hohen Erweichungsbereiche und ihrer guten Form und Bearbeitbarkeit, wegen ihrer Wasser- und Lösungsmittelbeständigkeit und ihrer Quellfestigkeit, wegen ihres realH.tiv niedrigen Preises und ihres relativ niedrigen Gewichtes. All diese Uigenschaften kommen ihrer Binsetzbarkeit durchaus entgegen, z.B. auf dem Gebiet der Drucklager und Walzen, auf dex Gebiet derTextilinaschinen, z.B. als Laufrollen für Spinnfäden, die sonst leicht korrodieren und einschneinden und dabei selbst leicht reißen.It may also be pointed out that and why specifically Polyamides can be used as metal substitutes in many places: because of their high hardness and breaking strength and low brittleness, because of their relatively high softening ranges and their good shape and machinability because of their water and solvent resistance and their resistance to swelling, because of their real low price and their relatively low weight. All of these properties come from their applicability against, e.g. in the field of thrust bearings and rollers, in the field of textile machines, E.g. as rollers for spun threads, which otherwise easily corrode and cut into And thereby even tear easily.

Überrasohen-erweise hat sich nun herausgestellt, daß ein geringer Zusatz gewisser fester Borverbindungen, in nur katalytisch niedrigem Ausmaßvon ca 1 bis 5Gew%, auf das Polywnidgewicht im ortsbegrenzten Gleitbere bezogen, genügt, um den Gleit- und Schmiereffekt ganz erheblich zu steigern.Surprisingly, it has now been found that a small Addition of certain solid boron compounds, only to a catalytically low level of approx 1 to 5% by weight, based on the weight of the polyamide in the localized sliding area, is sufficient, in order to increase the sliding and lubricating effect quite considerably.

Es handelt sich dabei speziell um solche Borverbindungen, die eine dem Graphit ähnliche hexagonale Gitterstruktur aufweisen, z.B. das Bornitrid und das Natriumborat, der Borax. Diese beiden Substanzen, das Natriumborat zweckmäßigerweise in seiner kristallwasserfreien Form, bewähren sich generell dort sehr gut als Gleit- und Schmiermittel, wo es darauf ankommt, nicht einen kontinuierlichen Film -wie beim kreisförmigen Umlauf - sondern einen rückläufigen Film zu erzeugen, wobei die handelsüblichen Schmiermittel auf Mineralölbasis versagen.These are specifically those boron compounds that have a have a hexagonal lattice structure similar to graphite, e.g. boron nitride and the sodium borate, the borax. These two substances, the sodium borate, expediently in its water-free form, generally prove to be very good as a lubricant and lubricants, where it counts, not a continuous film -like in the case of circular rotation - but to produce a retrograde film, with the Commercial lubricants based on mineral oil fail.

Der Graphit kommt dafür oft deswegen nicht in Frage, weil er alles hoffnungslos und nicht wieder abwaschbar schwärzt.The graphite is often out of the question because it contains everything blackens hopelessly and not washable again.

Die organischen Polymeren mit Kettenstruktur zeigen zwar schon an und für sich eine deutlich erkennbare Gleitwirkung, wie z.B.- die Polyamide, die Polyester und auch die Polyolefine. Davon scheiden aber die letsteren wegen ihres zu niedrigen Erweichungabereiches aus. Die Polyester sind zu kostspielig. Die Polyamide, die schon einen verhältnismäßig weiten Anwednungsbereich gefunden haben, könnten in ihrer Gleitwirkung gut noch gesteigert werden.The organic polymers with chain structure are already showing and a clearly recognizable sliding effect, such as - the polyamides, the Polyester and also the polyolefins. But the latter divorce them because of theirs too low softening range. The polyesters are too expensive. The polyamides, who have already found a relatively wide range of applications, could their sliding effect can still be increased.

Das gelingt nun sehr gut durch die Zugabe von Bornitrid oder Borax.This works very well by adding boron nitride or borax.

Sie haben Blättchenstruktur, die nicht spröde sondern geschmeidig ist, so daß die Plättchen sich rasch filmartig der Gleitfläche anpassen.They have a leaflet structure that is not brittle but pliable is so that the platelets quickly adapt to the sliding surface like a film.

Die Erfindung schildert also den Zusatz fester Borverbindungen mit BlättchenstruLtur als Gleit und Schmiermittel zu als Gleit und Lagermaterial verwendeten Ktnststoffen, dadurch getennzeichnet, daß sie in feinpulvriger Form der Kunststoffmasse homogen verteilt oder der sich als Gleitfläche darbietenden Kunststoffoberfläche ortsbegrenzt zugesetzt werden0 Es genügt interessanter- und vorteilhafterweise völlig, die Borverbindung lediglich in die als Gleitfläche dienende z.B. Polyamidoberfläche einzulagern. Zweckmäßig ist es, die betreffene Borverbindung in feinpullger Form in den Polyamidbereich einzuarbeiten.The invention thus describes the addition of solid boron compounds Leaflet structure used as a lubricant and as a sliding and bearing material Plastics, characterized in that they are in finely powdered form of the plastic compound homogeneously distributed or the plastic surface presenting itself as a sliding surface be added in a localized manner 0 Interestingly and advantageously, it is completely sufficient the boron compound only in the polyamide surface serving as a sliding surface, for example to store. It is expedient to use the boron compound in question in fine powder form to be incorporated into the polyamide area.

San kann die Borverbindung in einer Menge von ca 1 bis 2146,auf das Gewicht der Kunststoffmasse bezogen, der Masse vor oder während des Polymerisationsvorganges zusetzen und für eine gleichmässige' Verteilung sorgen. Man kann aber auch in die fertige Polymermasse bei der Formgebung die Borverbindung auSpudern und kurze Zeit hineinsintern lassen, z.B. bei der Folienbildung auf einem Kalander oder durch Eintauchen des heißen polymeren Werkstückes in die Pulvermasse der Borverbindung und Druckausübung bis zur Erkaltung, danach Blankschleifen der Gleitoberfläche. Auf diese Weise kommt man mit einem Bruchtwil der Menge an Borverbindung aus im Vergleich zu der Menge, die zugesetzt wird, wenn man die Borverbindung gleichmäßig in der gesamten Polymermasse verteilt.San can use the boron compound in an amount of about 1 to 2146, on the Weight related to the plastic mass, the mass before or during the polymerisation process add and ensure an even distribution. But you can also go to the Powder the boron compound out of the finished polymer mass during shaping and briefly let it sinter in, e.g. when forming a film on a calender or by dipping of the hot polymer workpiece into the powder mass of the boron compound and applying pressure until it cools down, then bare grinding of the sliding surface. That way comes with a Bruchtwil the amount of boron compound compared to the amount which is added when you have the boron compound uniformly throughout the polymer mass distributed.

Von Fall zu Fall, wenn die Polymermasse dazu geeignet ist, z. Be beim Polydodekalactam und beim Rilsan, wird man die feinpulvrige Borverbindung gleichmäßig in der Polyamidmasse verteilen und dann unter Tauchhintern, bzw. Wirbelsintern die zu überkleidenden Metallteile, bzw.On a case-by-case basis, if the polymer composition is suitable, e.g. Be at Polydodecalactam and Rilsan, one becomes the finely powdered boron compound evenly distribute in the polyamide mass and then under dip buttocks or vortex sintering metal parts to be covered or

Werkstücke nichtmetallischer Art damit überziehen.Cover workpieces of a non-metallic nature with it.

an erzielt so einen überraschend gesteigerten Gleiteffekt an den geschliffenen Flächen, indem z.Bv so geformte und ausgerüstete Laufrollen und vor allem feststehende Gleitstellen an Textilmaschinen einerseits bedeutend korrosionsfester geworden sind, andererseits die darüber gleitenden Spinnfäden bedeutend wenigdr Risse erfahren.an achieves a surprisingly increased sliding effect on the sanded ones Surfaces, by, for example, shaped and equipped rollers and, above all, fixed sliding points have become significantly more corrosion-resistant on textile machines on the one hand, and on the other the filaments sliding over it experience significantly fewer tears.

Claims (1)

Patentanspruch 1:Claim 1: Zusatz fester Borverbindungen mit Blättohenstruktur als Gleit- und Schmiermittel zu als Gleit- und Lagermaterial verwendeten Kunststoffen, dadurch gekennzeichnet, daß sie in feinpulyriger Form der Kunststoffmasse homogen verteilt zugesetzt werden.Addition of solid boron compounds with a leaf structure as sliding and Lubricant for plastics used as sliding and bearing material, thereby characterized in that it is homogeneously distributed in fine pulverulent form of the plastic mass can be added. Patentspruch 2: Zusatz fester Borverbindungen gemäß Anspruch 1, dadurch gekennzeichnet, daß sie der sich als Gleitfläche darbietenden Kunstetoffoberfläche ortsbegrenzt zugesetzt werden.Claim 2: addition of solid boron compounds according to claim 1, characterized characterized in that it presents itself as a sliding surface of the plastic can be added locally. Patentasspruch ): Zusatz fester Borverbindungen gemäß Anspruch 1, dadurch gekennzeichnet, daß die Borverbindung ein geinpulvriges Bornitrid ist.Claim): addition of solid boron compounds according to claim 1, characterized in that the boron compound is a powdered boron nitride. Patentanspruch 4: Zusatz fester Borverbindungen gemäß Anspruch 1, dadurch gekennzeichnet, daß die Borverbindung ein feinpulvriges kristallwasserfreies Natriumborat ist.Claim 4: addition of solid boron compounds according to Claim 1, characterized in that the boron compound is a finely powdered anhydrous one Is sodium borate. patentanspruch 5s Zusatz fester Borverbindungen gemäß Anspruch 1, dadurch gekennzeichnet, daß als Kunststoffmasse ein Polyamid verwendet wird.claim 5s addition of solid boron compounds according to claim 1, characterized in that a polyamide is used as the plastic compound. Patentanschpruch 6: Zusatz fester Borverbindungen gemäß Anoprtiohen 1 und 2, dadurch gekennzeichnet, daß der Anteil an Borvertindung an der Zusatzstelle 0,5 bis 2 Gew %, auf die Kunststoffmasse bezogen, beträgt.Claim 6: Addition of solid boron compounds in accordance with Anoprtiohen 1 and 2, characterized in that the proportion of boron compound at the additional point 0.5 to 2% by weight, based on the plastic mass.
DE19691937390 1969-07-23 1969-07-23 Solid boron cpds used as additives to plastics - with sliding surface properties Pending DE1937390A1 (en)

Priority Applications (1)

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DE19691937390 DE1937390A1 (en) 1969-07-23 1969-07-23 Solid boron cpds used as additives to plastics - with sliding surface properties

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DE19691937390 DE1937390A1 (en) 1969-07-23 1969-07-23 Solid boron cpds used as additives to plastics - with sliding surface properties

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