WO2015065296A1 - Polymère obtenu par polymérisation de nanoparticules hexagonales de nitrite de bore avec un monomère de réticulation de type orthosilicate de tétraéthyle - Google Patents

Polymère obtenu par polymérisation de nanoparticules hexagonales de nitrite de bore avec un monomère de réticulation de type orthosilicate de tétraéthyle Download PDF

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Publication number
WO2015065296A1
WO2015065296A1 PCT/TR2014/000286 TR2014000286W WO2015065296A1 WO 2015065296 A1 WO2015065296 A1 WO 2015065296A1 TR 2014000286 W TR2014000286 W TR 2014000286W WO 2015065296 A1 WO2015065296 A1 WO 2015065296A1
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WO
WIPO (PCT)
Prior art keywords
hexagonal boron
polymer
boron nitride
tetraethylorthosilicate
cross linking
Prior art date
Application number
PCT/TR2014/000286
Other languages
English (en)
Inventor
Öncel MEHMET
Okatan ALI
Özcan FATIH
Original Assignee
Mehmet Öncel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mehmet Öncel filed Critical Mehmet Öncel
Publication of WO2015065296A1 publication Critical patent/WO2015065296A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/0834—Compounds having one or more O-Si linkage
    • C07F7/0838—Compounds with one or more Si-O-Si sequences

Definitions

  • the invention is related to a polymer which can be used without a limitation in kitchen goods, defence, automotive, pipe, metal and plastic industry, facing, construction, electrical products and all related sectors.
  • the invention is especially related to a polymer obtained by the polimerization of hexagonal boron nitrite nano particles with tetraethylorthosilicate cross linking monomer.
  • Patent application TR2011/05384 is one of the patents present in the literature related with the subject.
  • a phosphate layer or anodized layer is formed on the surface by the phosphatization process on the aluminium surface with phosphate/fluoride.
  • Nano sized hexagonal boron nitrite is placed into said anodized layer.
  • the process performed is the absorption/capturing of hexagonal boron nitrite particles by the phosphate or anodized layer. In said absorption/capturing process, no chemical bonding occurs.
  • the hexagonal boron nitrite particles on the surface can be removed from the surface by being regenerated with proper reactives with acid or base.
  • the nano sized hexagonal boron nitrite is absorbed in the anodized phosphate surface with the absorption method and thus, the movable metal part is lubricated.
  • the bond formed by anodized phosphate surface with hexagonal boron nitrite is a complex bond.
  • Complex bonds are the weakest bonds among chemical bonds and they can be broken easily, they are weak against acid/base effect and the complex interaction formed on the surface can be eliminated easily. Therefore, since it is an oily material, only the physical properties of hexagonal boron nitrite are used, its mechanical and thermal features can not be used.
  • hexagonal boron nitrite is very weak; it is not resistant to acid or base and thus, it can be removed from the surface easily.
  • Another application related to the subject is WO 2010044535 A1.
  • hexagonal boron nitrite is reacted with silane reactives such as methyltrimethoxysilane, tetramethoxysilane, trimethoxysilane or tetraethoxysilane in isopropanole in room temperature.
  • silane reactives such as methyltrimethoxysilane, tetramethoxysilane, trimethoxysilane or tetraethoxysilane in isopropanole in room temperature.
  • Hexagonal boron nitride molecules are restrained by being wrapped and the obtained mixture is used in kitchen utensils by being coated onto aluminum and stainless steel.
  • an inorganic mixture is coated onto aluminum or stainless steel surface as a stretch cover.
  • the surface formed is an inorganic surface as mentioned in the document. It is not very different from the ceramic coating used in industrial kitchen utensils, the only difference is that, it additionally contains hexagonal boron nitride.
  • the rigidity of the obtained surface is excessive and its thermal resistance varies. Excessive expansion in winter causes cracks on the surface. Also in summer, stretching on the surface may cause contractions.
  • the present invention is related to hexagonal boron nitride based polymer obtained by the polymerization of hexagonal boron nitride with a cross binding monomer, to be used as a coating material, meeting all the needs and eliminating all disadvantages mentioned above and providing some additional advantages.
  • the prior object of the invention is to provide a polymer which increases the thermal conductivity of the surface, forms a slippy and non-sticking surface, eliminates the surface toxicity, increases durability, provides surface stability and applied easily.
  • An object of the invention is to provide the polymerization of hexagonal boron nitride nano particules which are present as a web in the form of honeycomb and to obtain a polymer with a larger surface area by increasing the surface of the hexagonal boron nitride nano material.
  • Another object of the invention is to provide a coating material which is more durable thanks to covalent bonds. By the virtue of this durable structure, no splitting and abrasion occurs at the surface.
  • Another object of the invention is to use the polymer subject to the invention as an additive and/or coating material thanks to its thermal and electrical conductivity.
  • a similar object of the invention is to provide the usage of said polymer in defence industry thanks to improved impact resistance and elasticity of the material obtained by the layer formed on the surface due to the web structure of hexagonal boron nitride.
  • Another object of the invention is to have an organic surface and thus, a more natural structure, since the synthesized material is formed as a result of organic reactions.
  • the invention is a hexagonal boron nitride based polymer obtained by the polymerization of hexagonal boron nitride nano particles with a cross linking monomer.
  • Figures Assisting the Description of the Invention Figure-1 is the polymerization reaction and the chemical structure of the hexagonal boron nitride based polymer obtained by said reaction.
  • hexagonal boron nitride which provide the superior characteristics of the polymer subject to the invention are herein below: -
  • the melting temperature of hexagonal boron nitride is 2600°C. It loses its stability at 1000°C in atmospheric conditions, at 2200°C under argon gas and at 2400°C under nitrogen gas.
  • the polymer material subject to the invention may be coated onto various metal and polymer materials as a bearing material. It may be coated to metal surfaces such as aluminum (Al), iron (Fe), Cupper (Cu), zirconium (Zr), silisium (Si) by activating the surfaces with hydroxyl groups (-OH). Additionally, it may also be coated onto plastic materials such as polyethylene, polypropylene by being modified with hydroxyl (-OH) groups.
  • the bearing material aluminum plate has positive features such as easy processing, good thermal conductivity and easy shaping since it is a soft metal.
  • the thickness of the qualified and sturdy aluminum plate is 3-4 mm which is ideal for processing and shaping.
  • hexagonal boron nitride is synthesized at 1200-1600°C, under vacuum and inert atmosphere.
  • hexagonal boron nitride is mixed in ethanol homogenously and tetraethylorthosilicate is added thereinto dropwise.
  • the reaction mixture is mixed in room temperature for 24 hours by a magnetic mixer.
  • synthesized nano sized hexagonal boron nitride is first reacted with Nal in ethanol.
  • - OH (hydroxyl) groups are activated and become -0-Na+.
  • the activated -0-Na+ end of hexagonal boron nitride is interacted with tetraethylorthosilicate and thus, cross linked polymer is obtained.
  • Hexagonal boron nitrite is captured by tetraethylorthosilicate and used in surface coating.
  • the surface of aluminum is activated by proper reactives (by acid/base) and thus, hydroxyl (-OH) groups are formed on the surface.
  • the aluminum surface is silaned by interacting the hydroxyl (-OH) groups on the activated aluminum surface with the tetraethylorthosilicate in ethanol.
  • a layer is formed by interacting the obtained tetraethylorthosilicate with the cross linked hexagonal boron nitrite polymer.
  • a strong covalent boding is obtained on the surface and the coating process is completed.
  • Aluminum plate is solely used as the bearing metal. Thus, a web layer with a thickness of approximately 10 microns is formed on the surface of aluminum plate which is completely a new product and does not reflect the characteristics of bearing material.
  • the obtained hexagonal boron nitride based polymer has a web structure, it has different characteristic features different then the characteristic features of the metal material used. These features are:
  • the obtained product is used as a coating material in industrial kitchen utensils, at the inner parts of household electrical appliances, sheet metals, acid and base tanks, medical materials, cutting tools and hardware.
  • the web structure of hexagonal boron nitride formed on the surface provides elasticity to the material and increases the resistance against impacts which makes it usable in the defence industry.
  • the hexagonal boron nitride polymer added to the ingredients during the processing of metal acts as a web and decelerates the speed of the bullet and thus, the bullet stays on the metal or bounces therefrom.
  • the melting point of hexagonal boron nitrite is 2600°C. It loses its stability at 1000°C in atmospheric conditions, at 2200°C under argon gas and at 2400°C under nitrogen gas. Thanks to these features, it increases the thermal properties of the metal in which it is included. Due to such specific features it may be used in various fields such as the production of military vehicle armors, ammunition, mechanisms and gun barrels in defence industry.
  • Hexagonal boron nitride obtained with the features mentioned above is used in the surface coating processes of metals other than aluminum or epoxy polymers (automotive industry) and thus, by manufacturing a completely new material having features different then the features of bearing material, a new product having better and superior features compared to present material is obtained.
  • the polymer obtained is used in kitchen goods, defence, automative, pipe, metal and plastic industry, facing, construction, electrical products and similar industries.
  • the usage of the polymer subject to the invention is not limited with these industries and it may be used in many other areas.

Abstract

La présente invention concerne un polymère obtenu par polymérisation de nanoparticules hexagonales de nitrite de bore avec un monomère de réticulation de type orthosilicate de tétraéthyle, ledit polymère pouvant être utilisé en tant qu'additif et matériau de revêtement dans de nombreuses branches d'activité, au premier rang desquelles la cuisine, la défense et l'automobile.
PCT/TR2014/000286 2013-11-01 2014-08-22 Polymère obtenu par polymérisation de nanoparticules hexagonales de nitrite de bore avec un monomère de réticulation de type orthosilicate de tétraéthyle WO2015065296A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201312635 2013-11-01
TR2013/12635 2013-11-01

Publications (1)

Publication Number Publication Date
WO2015065296A1 true WO2015065296A1 (fr) 2015-05-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2014/000286 WO2015065296A1 (fr) 2013-11-01 2014-08-22 Polymère obtenu par polymérisation de nanoparticules hexagonales de nitrite de bore avec un monomère de réticulation de type orthosilicate de tétraéthyle

Country Status (1)

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WO (1) WO2015065296A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684323A1 (fr) * 1994-05-26 1995-11-29 Praxair S.T. Technology, Inc. Composition de scellement contenant du nitrure de bore-silicate
US20100242799A1 (en) * 2008-10-14 2010-09-30 Tae Woong Kim Non-adhesive coating composition and method of preparing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684323A1 (fr) * 1994-05-26 1995-11-29 Praxair S.T. Technology, Inc. Composition de scellement contenant du nitrure de bore-silicate
US20100242799A1 (en) * 2008-10-14 2010-09-30 Tae Woong Kim Non-adhesive coating composition and method of preparing the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KARNTHIDAPOM WATTANAKUL SITTISAK SATASIT ET AL: "The Versatile Method to Control the Orientation of BN Particles in Thermoset Matrix", J.CHEM. CHEM. ENG., no. 6, 1 January 2012 (2012-01-01) - 25 September 2012 (2012-09-25), El Monte, pages 769 - 773, XP055164155, Retrieved from the Internet <URL:http://lib.cqvip.com/qk/89596X/201209/43623339.html> *
XINGYI HUANG ET AL: "Polyhedral Oligosilsesquioxane-Modified Boron Nitride Nanotube Based Epoxy Nanocomposites: An Ideal Dielectric Material with High Thermal Conductivity", ADVANCED FUNCTIONAL MATERIALS, WILEY - V C H VERLAG GMBH & CO. KGAA, DE, vol. 23, no. 14, 12 April 2013 (2013-04-12), pages 1824 - 1831, XP001582428, ISSN: 1616-301X, [retrieved on 20121106], DOI: 10.1002/ADFM.201201824 *

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