In a three-dimensional printing method example, a build material is applied. A first liquid functional material is applied on at least a portion of the build material. The first liquid functional material includes ferromagnetic nanoparticles that are selected from the group consisting of an iron oxide, a ferrite, a combination of the iron oxide and a ferromagnetic metal oxide, and combinations thereof. The build material is exposed to electromagnetic radiation having a frequency ranging from about 5 kHz to about 300 GHz to sinter the portion of the build material in contact with the first liquid functional material.

A method of printing a cellular solid (120) by direct bubble writing comprises introducing an ink formulation (102) comprising a polymerizable monomer and a gas (104) into a nozzle (106), which includes a core flow channel (108) radially surrounded by an outer flow channel (110). The ink formulation is directed into the outer flow channel (110) and the gas is directed into the core channel (108). The ink formulation (102) and the gas (104) are ejected out of the nozzle (106) as a stream of bubbles (112), where each bubble includes a core (114) comprising the gas and a liquid shell (116) overlying the core that comprises the ink formulation. After ejection, the polymerizable monomer is polymerized to form a solid polymeric shell (118) from the liquid shell (116), and the bubbles are deposited on a substrate (122) moving relative to the nozzle (106). Thus, a polymeric cellular solid (120) having a predetermined geometry is printed.

The present invention relates to a method for preparing high performance polymer-based conductive composites by space-limited micro-nano precision assembly method, which belongs to the technical field of composite material preparation; including the following steps: (1) through blending the conductive filler and the polymer matrix which are added to the blending equipment, homogeneous polymer/conductive filler material system is obtained; (2) add the homogeneous material system to the mold composed of two flat plates, and let the homogeneous blend gets plane limited compression by means of mechanical compression; (3) making use of the micro-nano structure array set on the compression template to further compact the filler on the network and conducting “array anchorage”, to realize the micro-nano precision assembly of network and obtain the composite material with excellent performance, which has a continuous and tight conductive network, and has excellent tensile properties, flexibility and thermal stability.

The invention relates to a method for producing a shaped body by means of a radiation-induced printing process according to the technique of the one-photon polymerization process, characterized in that the shaped body is produced by solidifying a liquid or viscous material which contains a polysiloxane component produced by hydrolytic condensation of one or more monomeric silanes having exclusively two or three hydrolyzable groups and at least one organically polymerizable radical being bonded to the silicon atom via carbon, and contains an initiator and/or catalyst for the radiation-induced polymerization of the organically polymerizable residue, and the solidification is effected by directing light onto a region of a surface of a substrate, whereby a layer of the material located there is polymerized and thereby solidified, whereupon further layers are successively solidified.

Furthermore, the invention relates to a shaped body based on an organically polymerized silica (hetero)polycondensate, which was produced by organic polymerization of the aforementioned polysiloxane component, with superior mechanical properties.

A shoe sole comprising an elastomeric composition comprising: (D) 100 phr of a mixture of rubbers comprising: i. from 40 to 70% by weight of an isoprene polymer; ii. from 20 to 50% by weight of polybutadiene; iii. from 10 to 40% by weight of an SBR having a glass transition temperature (Tg) from −60 to −40° C.; (E) from 50 to 100 phr of amorphous carbon black having a surface area greater than 85 m.sup.2/g measured with the ASTM D6556 method, and a dibutyl phthalate absorption index (DBPA) greater than 90 measured with the ASTM D2414 method; (F) from 1 to 30 phr of graphene nano-platelets, wherein at least 90% of said graphene nano-platelets has a side dimension (x, y) from 50 to 50000 nm and a thickness (z) of 0.34 to 50 nm, and wherein said graphene nano-platelets have a C/O ratio ≥100:1.

The invention relates to a method for creating a surface structure on a mold, wherein first structural elements are created using a laser structuring process in a first step, and second structural elements, which are smaller than the first structural elements, are created using an anodic oxidation process in another step following the laser structuring process. The invention further relates to a mold of said type and finally to a plastic film or a plastic component having a surface structure as well as to a method for the production thereof.

A method for forming a graphene-reinforced polymer matrix composite is disclosed. The method includes distributing graphite microparticles into a molten thermoplastic polymer phase; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase exfoliates the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along the c-axis direction.

A method of preparing an anisotropic polymer film using an electric field generator. The method of preparing an electric field generator comprising supplying an electric field across an electric field application zone, where the electric field is generated by a first electrode having a first charge and a second electrode having a charge opposite of the first, passing a polymer film that optionally includes dispersed particles through the electric field application zone, where the polymer film contacts the first electrode to induce orientation, and freezing the polymer film to lock the orientation before the polymer film exits the electric field application zone.

Water-soluble thermoplastic polymer composites of water-soluble thermoplastic polyethylene oxide graft polymers, and nanoscopic particulate processing aids such nanoscopic titanium dioxide powders, or water-soluble polyethylene oxide graft polymers, structural reinforcement materials such as carbon or glass fibers, and plasticizers. These water-soluble thermoplastic polymer composites may be useful in preparing, for example, three-dimensional (3D) sacrificial supports, vapor sensors, as well as other three-dimensional (3D) articles, objects, or parts.

A method of reversible bonding based on deposition of a coating capable of an indefinite number of reversible bonding cycles as enable by bond exchange reactions is provided. This is accomplished by deposition of crosslinkable aromatic polyester oligomers on a substrate. The coated article is heated to produce a fully thermoset network by condensation reactions. The fully thermoset network has access to a type of bond exchange reaction within the resin that permits the dynamic exchange of ester bonds within the resin. To execute the bonding step a source of heat is applied at a pressure. To debond, there is applied force in tension and/or shear that causes the coating to fail. The reversibility of the process is contingent on the cohesive (rather than adhesive) failure of the coating—that is, the coating must not delaminate from the substrate. Failure must occur in the resin of the reversible coating.