Invented by Peter Craig Venema, Velox Flow LLC
The Velox Flow LLC invention works as followsThe present invention provides a multifunctional particles and methods for forming them. The multifunctional particles includes a particle surface; a first moiety coupled with the surface, having atleast one substantially waterphobic appendage and a second moiety attached to the surface, having atleast one appendage comprising both a reactive group and a substantially hydrophilic repeating units, whereby, the particle is substantially superhydrophobic due to the substantially waterproof appendage and chemically reactive due to the reactive group. Also, antimicrobial groups can be coupled to surface.
Background for Multifunctional superhydrophobic particle for chemical adhesion
The self-assembled monolayer of fluorocarbons and saturated hydrocarbons is highly inert, preventing the particles from chemically bonding with anything. Fluorinated diatomaceous Earth (FDE), which is commonly used in polymer solutions, is a common component of current coating technologies. The particles can be easily removed from the surface by rubbing. The surface of the polymer is usually porous and rough. The production of these surfaces is also inefficient, because the particles embedded in the polymer are not on the surface.
The following is a simplified overview of one or several embodiments to give a basic understanding. This summary does not provide an exhaustive overview of all the contemplated embodiments. It is also not intended to identify critical or key elements in all embodiments or define their scope. The summary is intended to simplify some concepts in one or more embodiments as a precursor to a more detailed description later.
In one embodiment, there is provided a multifunctional particles. The multifunctional particle includes, in one embodiment, a particle surface; a first moiety attached to the surface, having atleast one substantially hydrophobic end; and a secondary moiety coupled with the surface, having atleast one appendage having a reactive function group and substantially hydrophilic repetition unit. As a consequence, the particle becomes superhydrophobic due to the substantially waterphobic end, is chemically reactive because of the reactive group, and migrates to the surface of a matrix that contains the
In an aspect of the embodiments disclosed herein the particle is a SiO2-containing particles selected from the group consisting diatomaceous Earth, fumed silicon, fused silicon, and rice husk Ash.
In some embodiments, the particles are selected from a group consisting of glass, quartz, aluminum, aluminium oxide, zirconium dioxide, alumino silicate, copper, lead, talc and an inorganic oxide. Other materials include iron asbestos, steel, nickel, zinc zinc oxide and lead.
In a further aspect, either alone or in combination, with any of those aspects previously described, the first moiety comprises a functional group anti-microbial.
In a further aspect, either alone or combined with any previous aspects of the embodiment, the particle comprises a third moiety attached to the surface, and at least one of its appendages contains an anti-microbial group.
In a further aspect, either alone or in combination, with any of previous aspects, of the embodiment of the invention, the moiety of the particle is the reaction product with the 3-trimethoxysilylpropyl dimethyloctadecylammonium chloride.
In another aspect of the invention, either alone or combined with any previous aspect of the invention, the hydrophilic repeating element comprises a group of functional groups selected from the group consisting oxyethylene and Polyethylene Glycol.
In a further embodiment of the first invention, either alone or in combination, the hydrophilic repeated unit is placed between the reactive functional groups and the particle.
In a further aspect of the first embodiment, alone or in combination with any of the previous aspects of the first embodiment, the second moiety is a reaction product of the particle with a member selected from the group consisting of amino-functional hydrocarbon silanes, N-(6-aminohexyl)-3-aminopropyltrimethoxysilane, aminohexylaminoethyltrimethoxysilane, aminopropyltrimethoxysilane, aminopropyltriethoxysilane, N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane, methyacryloxypropyl-trimethoxysilane, and combinations thereof.
In another aspect of the 1st embodiment, alone or combined with any of previous aspects of the 1st embodiment, the 2nd moiety comprises aminesilanes (olefinsilanes), anhydride silanes (epoxy silanes), halogensilanes(hydroxylsilanes), dipodalsilanes(acrylate silanes), sulfur-containingsilanes(water based silanes), isocyanatesilane
In another aspect of the embodiment of the first, either alone or in combination, the moiety of the first comprises a product of a particle’s reaction with a molecule from the structure
where y is between 1 and 3
L is a linking group. It is?CH2CH2, or?CH2CH2CH2, or?CH2CH2O. Or if you prefer, it’s?CH2CH2C (O),??CH2CH2CH2C (O), or??CH2CH2CH2C C(O); and?
(CF2)nCF3 or? “R is? (CF(CF3)OCF2)nCF2CF3, where n is 0 to 24.
In a further aspect of the first embodiment, alone or in combination with any of the previous aspects of the first embodiment, the first moiety comprises a reaction product of the particle with 1H, 1H,2H,2H-perfluorooctyltrichlorosilane.
In a further aspect of the first embodiment, alone or in combination with any of the previous aspects of the first embodiment, the second moiety a reaction product of the particle with N-3-[(amino(polypropylenoxy)]aminopropyltrimethoxysilane.
In a second embodiment, there is a particle. In some embodiments the particle comprises a surface, a first moiety attached to the surface, having an antimicrobial function group and at least one substantially water-repellent appendage; and a secondary moiety attached to the surface, having at least a single appendage comprising the reactive functional groups, such that the particle is chemically reactive due to the reactive functional groups, and antimicrobial due to the antimicrobial functional groups.
In one aspect of the second embodiment the particle has a third moiety attached to the surface with at least one appendage containing a repeating unit that is substantially hydrophilic.
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