Disclosed are embodiments of 3D printing compositions that incorporate light scattering and wavelength-shifting metal nanoparticles, and systems and methods of using the 3D printing compositions. In some embodiments, the 3D printing compositions containing metal nanoparticles cure faster upon exposure to UV radiation. In some embodiments, the 3D printing compositions containing metal nanoparticles scatter incoming UV light throughout printed layers of the 3D printing compositions. It is proposed that metal nanoparticles produced by high energy methods possessing smooth spherical morphology and narrow size distributions can be integrated into 3D printing compositions to mitigate the risk of over-curing due to the light-scattering and/or down-shifting effect of the nanoparticles. A method for adding the nanomaterials to the 3D printing compositions in a non-interruptive process is also disclosed.

A method for providing a substrate coating comprises transferring a substrate to an enclosed ink jet printing system; printing organic material in a deposition region of the substrate using the enclosed ink jet printing system, the deposition region comprising at least a portion of an active region of a light-emitting device on the substrate; loading the substrate with the organic material deposited thereon to an enclosed curing module; supporting the substrate in the enclosed curing module, the supporting the substrate comprising floating the substrate on a gas cushion established by a floatation support apparatus; and while supporting the substrate in the enclosed curing module, curing the organic material deposited on the substrate to form an organic film layer.

In one aspect, build materials and support materials for use with a 3D printer are described herein. Such materials include a phosphor component in combination with other components. In some embodiments, the phosphor component of a build material or support material is present in the material in an amount of 0.001-0.5 wt. % and has a peak photoluminescence (PL) emission wavelength of 430-750 nm and a photoluminescence quantum yield (QY) of 0.10-1.

A UV-curable and recyclable thermoset shape memory polymer is provided. The polymer includes a vitrimer-based monomer and a photoinitiator. The vitrimer-based monomer includes a first unit rendering a high chain stiffness upon polymerization of the monomer, and a second photopolymerizable unit for photopolymerization of the monomer under a UV irradiation. The polymer has high strength, high stiffness, high recovery stress, high energy storage, reasonable recycling efficiency, and is printable using SLA with high resolution.

A photo-curable ink composition is provided, the composition including: a polymer including a structural unit represented by General Formula 1 below; and a radical-polymerizable monomer, in which a total content of a monofunctional radical-polymerizable monomer and a bifunctional radical-polymerizable monomer is 50% by mass or more with respect to a total amount of the composition: ##STR00001## in which, in General Formula 1: R.sup.1 represents a hydrogen atom or a methyl group; X represents an oxygen atom or —NR.sup.2—, R.sup.2 representing a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; Y represents a group including at least one selected from the group consisting of a thioether structure, a phosphorus atom, and a hindered phenol structure; and * represents a bonding site.

A photo-curable ink composition is provided, the composition including: a polymer including a structural unit represented by General Formula 1 below; and a radical-polymerizable monomer, in which a total content of a monofunctional radical-polymerizable monomer and a bifunctional radical-polymerizable monomer is 50% by mass or more with respect to a total amount of the composition: ##STR00001## in which, in General Formula 1: R.sup.1 represents a hydrogen atom or a methyl group; X represents an oxygen atom or —NR.sup.2—, R.sup.2 representing a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; Y represents a group including at least one selected from the group consisting of a thioether structure, a phosphorus atom, and a hindered phenol structure; and * represents a bonding site.

This invention provides resin formulations which may be used for 3D printing and pyrolyzing to produce a ceramic matrix composite. The resin formulations contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material. The invention provides direct, free-form 3D printing of a preceramic polymer loaded with a solid-phase filler, followed by converting the preceramic polymer to a 3D-printed ceramic matrix composite with potentially complex 3D shapes or in the form of large parts. Other variations provide active solid-phase functional additives as solid-phase fillers, to perform or enhance at least one chemical, physical, mechanical, or electrical function within the ceramic structure as it is being formed as well as in the final structure. Solid-phase functional additives actively improve the final ceramic structure through one or more changes actively induced by the additives during pyrolysis or other thermal treatment.

This invention provides resin formulations which may be used for 3D printing and pyrolyzing to produce a ceramic matrix composite. The resin formulations contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material. The invention provides direct, free-form 3D printing of a preceramic polymer loaded with a solid-phase filler, followed by converting the preceramic polymer to a 3D-printed ceramic matrix composite with potentially complex 3D shapes or in the form of large parts. Other variations provide active solid-phase functional additives as solid-phase fillers, to perform or enhance at least one chemical, physical, mechanical, or electrical function within the ceramic structure as it is being formed as well as in the final structure. Solid-phase functional additives actively improve the final ceramic structure through one or more changes actively induced by the additives during pyrolysis or other thermal treatment.

There is provided a resin composition for a modeling material, used for shaping a modeling material by a manufacturing method for light curing molding using an ink-jet scheme, comprising (A) an ethylenic unsaturated monomer as a photocuring component, (B) a photopolymerization initiator, and (C) a surface adjusting agent, wherein the resin composition for a modeling material has surface tension Mt of 26.0 to 33.0 mN/m, and the resin composition for a modeling material has surface tension Mst represented by the following (i) expression of 33.0 mN/m or more, and this resin composition for a modeling material 4a can afford a light cured article having the good dimensional accuracy.

There is provided a resin composition for a modeling material, used for shaping a modeling material by a manufacturing method for light curing molding using an ink-jet scheme, comprising (A) an ethylenic unsaturated monomer as a photocuring component, (B) a photopolymerization initiator, and (C) a surface adjusting agent, wherein the resin composition for a modeling material has surface tension Mt of 26.0 to 33.0 mN/m, and the resin composition for a modeling material has surface tension Mst represented by the following (i) expression of 33.0 mN/m or more, and this resin composition for a modeling material 4a can afford a light cured article having the good dimensional accuracy.