Iamfluidics Holding B.v.

Universiteit Twente

Claas Willem Visser

Jennifer Ann Lewis

Hermanus Bernardus Johannes Karperien

Tom Kamperman

Detlef Lohse

Dahlia Ningrum Amato

Jochen Mueller

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

Method of 3D printing a cellular solid

A production process and a related device comprises a formation process comprising: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction.

Process and device for in-air production of single droplets, compound droplets, and shape-controlled (compound) particles or fibers

A production process comprises a formation process that includes: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction. A production process device can perform the formation process.

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

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Enschede, Netherlands

Claas Willem Visser