The present invention relates to a process for producing a fiber-foam composite (FSV1), wherein a first fiber material (FM1) is applied to a first foam body (SK1) to give a first structured fiber surface (FO1) to which a second foam body (SK2) is subsequently applied to give the fiber-foam composite (FSV1).

The present invention relates to a process for producing a fiber-foam composite (FSV1), wherein a first fiber material (FM1) is applied to a first foam body (SK1) to give a first structured fiber surface (FO1) to which a second foam body (SK2) is subsequently applied to give the fiber-foam composite (FSV1).

A method is provided for fabricating strong green parts using binder jetting in conjunction with a gaseous crosslinker. The process includes preparing a binder and a powder, printing the green part via selective binder deposition into powder layers, and exposing the green part to a gaseous crosslinker either during or after printing. The gaseous crosslinker chemically reacts with functional groups in the binder to form crosslinked networks, enhancing mechanical strength without requiring high-temperature sintering. In certain embodiments, polyethylenimine is used as the binder, Zeolite 13X as the powder, and carbon dioxide as the gaseous crosslinker, enabling the formation of chemically bonded green parts suitable for temperature-sensitive applications such as gas sorbents. The method enables full-part functionality, including tunable sorption properties and geometries, while expanding the range of materials compatible with binder jet fabrication.

A method is disclosed for binder jetting of strong green parts using a crosslinker to form covalent bonds among binder molecules. In the disclosed process, a powder and a binder are prepared, and a crosslinker is introduced either by premixing with the binder or powder, or by in-situ deposition through a printhead. During the printing process, the binder and crosslinker are selectively jetted into the powder bed to form green parts layer by layer. The green parts are subsequently cured to induce crosslinking and solvent removal, resulting in chemically bonded binder networks. This method enables the fabrication of mechanically robust green parts without requiring high-temperature sintering, thereby allowing use with heat-sensitive materials. The approach is applicable to a wide range of binders, powders, and crosslinkers, and is particularly suited for manufacturing sorbent structures for carbon capture, water treatment, and catalytic applications.