摘要:
Inorganic curable systems, such as cements, plasters, ceramics, or liquid silicates, which can be used, for example, in the fields of building, construction, or the oil-drilling industry. The use of carbon nanofillers for reinforcing the mechanical properties of such systems and for improving the latter. A method for inserting carbon nanofillers, such as carbon nanotubes, in the form of a binder master batch, into an inorganic curable system with a view to preparing composite materials having improved properties.
摘要:
A method for producing a fibrous material including carbon fibres or glass fibres or plant fibres or polymer-based fibres, that are used alone or in a mixture, and are impregnated by a thermohardenable polymer using a mixture containing a hardener and carbon nanofillers, such as carbon nanotubes (CNT). A mixture containing said nanofillers, such as CNTs, and the hardener is used to introduce said nanofillers into the fibrous material. A continuous production line (L) for producing the material in the form of at least one calibrated and homogeneous strip (20) of reinforcing fibres impregnated with a thermohardenable polymer, includes the device (100) for arranging two series of fibres (1, 2) used to form a strip in such a way as to arrange the two series of fibres such that they are brought into contact with each other by means of two calendering devices.
摘要:
An oil-based masterbatch in the form of granules containing carbon nanotubes. Also, a method for preparing an oil-based masterbatch in the form of granules containing carbon nanotubes. Also, the use of an oil-based masterbatch in the form of granules containing carbon nanotubes for manufacturing an aqueous or organic viscoelastic fluid, intended for drilling in underground formations.
摘要:
The present invention relates to a masterbatch in agglomerated solid form comprising: a) carbon nanofibers and/or nanotubes and/or carbon black, the content of which is between 15 wt % and 40 wt %, preferably between 20 wt % and 35 wt %, relative to the total weight of the masterbatch; b) at least one solvent; c) at least one polymer binder, which represents from 1 wt % to 40 wt %, preferably from 2 wt % to 30 wt % relative to the total weight of the masterbatch. The present invention also relates to a concentrated masterbatch, characterized in that it is obtained by eliminating all or part of the solvent from the masterbatch described previously.It also relates to a process for preparing said masterbatches and to the uses of the latter, especially in the manufacture of an electrode or of a composite material for an electrode.
摘要:
An oil-based masterbatch in the form of granules containing carbon nanotubes. Also, a method for preparing an oil-based masterbatch in the form of granules containing carbon nanotubes. Also, the use of an oil-based masterbatch in the form of granules containing carbon nanotubes for manufacturing an aqueous or organic viscoelastic fluid, intended for drilling in underground formations.
摘要:
The present invention relates to a multilayer conductive fiber having a core/shell structure, wherein the core contains nanotubes, in particular carbon nanotubes. The invention also relates to a method for producing said fiber by coextrusion and to the uses thereof The invention finally relates to a composite material including the aforementioned multilayer composite fibers bonded together by weaving or using a polymer matrix.
摘要:
The invention relates to a fibrous substrate such as woven fabrics, felts, nonwoven fabrics that may be in the form of strips, laps or braids, said substrate being impregnated with an organic polymer or blend of organic polymers containing carbon nanotubes (CNTs). Another subject of the invention is a process for manufacturing said substrate, and the various uses thereof for the manufacture of 3D mechanical components.
摘要:
A method for manufacturing a thermoplastic composition including: a polyester resin (c); a mixture including a copolymer (a) of an α-olefin and of a monomer having an ethylenic unsaturation and an epoxy function, as well as a core-shell compound (b); characterized in that said method includes a first step of manufacture the mixture of (a) and (b) by extrusion at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature of 60 to 180° C.; a second step of manufacturing the thermoplastic composition by extrusion or by mixing the polyester resin (c) with the mixture of (a) and (b) produced in the first step.
摘要:
The present invention relates to a composite of carbon nanotubes and of graphenes in agglomerated solid form comprising: a) carbon nanotubes, the content of which represents from 0.1% to 50% by weight, preferably from 10% to 40% by weight relative to the total weight of the composite; b) graphenes, the content of which represents from 0.1% to 20% by weight, preferably from 1% to 10% by weight relative to the total weight of the composite; and c) a polymer composition comprising at least one thermoplastic polymer and/or one elastomer. The present invention also relates to a process for preparing said composite, its use for the manufacture of a composite product, and also to the various applications of the composite product.
摘要:
The invention relates to a method for producing a composite material, that comprises: a—preparing a carbon nanotube-based master mixture according to a method that comprises: mixing the carbon nanotubes in the form of a powder and at least one thermoplastic and/or elastomer polymer matrix in the form of a powder, the amount of carbon nanotubes representing from 2 to 30 wt % relative to the total weight of the powdery mixture; and implementing said mixture into an agglomerated solid physical form; and B—placing said master mixture into a thermoplastic and/or elastomer polymer mixture. The invention also relates to the use of the above master mixture for implementing said method.