Abstract: The present disclosure discloses a preparation method of an ultraviolet (UV)-resistant and transparent lignin-based polyurethane (PU) elastomer. During the synthesis process, natural lignin-based polyols are directly used as an end-capping agent, isophorone diisocyanate and 2,2-dimethylolbutyric acid are used as a hard segment and polyether chain polyols are used as a soft segment, to synthesize a PU elastomer with a transparent brown appearance, excellent high elasticity and elastic recovery performance, as well as excellent mechanical properties, excellent UV resistance and repeatable processability. The lignin-based PU elastomer has a simple preparation process, and has great potential values for use in the fields such as PU elastomer film, fabric coating, and elastic fiber and biomass polymer materials.

Abstract: The present disclosure discloses a preparation method of an ultraviolet (UV)-resistant and transparent lignin-based polyurethane (PU) elastomer. During the synthesis process, natural lignin-based polyols are directly used as an end-capping agent, isophorone diisocyanate and 2,2-dimethylolbutyric acid are used as a hard segment and polyether chain polyols are used as a soft segment, to synthesize a PU elastomer with a transparent brown appearance, excellent high elasticity and elastic recovery performance, as well as excellent mechanical properties, excellent UV resistance and repeatable processability. The lignin-based PU elastomer has a simple preparation process, and has great potential values for use in the fields such as PU elastomer film, fabric coating, and elastic fiber and biomass polymer materials.

Abstract: A flexible electronic component in this disclosure comprises a flexible fabric substrate and a smoothing layer formed on the flexible fabric substrate. A layer of nanoplatelets derived from a layered material is deposited on the smoothing layer by inkjet printing. The layer of nanoplatelets may form a first layer of a first nanoplatelet material and there may be provided at least a second layer, of a different nanoplatelet material, formed at least in part on the first layer. First and second electrodes are provided in contact respectively with the first and second layers.

Abstract: The present invention provides a method of preparing UV-curable inkjet pigment ink for textile printing, in which mini-emulsion techniques are used to encapsulate monomer, photo initiator, thermal initiator and pigment in mini-emulsion particles to make a UV-curable pigment paste, and the UV-curable pigment paste is mixed with water-soluble co-solvent, surfactant and water to make a UV-curable pigment ink. The preparation process is simple and easy. The UV-curable inkjet pigment ink of the invention exhibits good fluency during printing, bright color and strong color fastness in printed products.

Abstract: The present invention provides a method of preparing UV-curable inkjet pigment ink for textile printing, in which mini-emulsion techniques are used to encapsulate monomer, photo initiator, thermal initiator and pigment in mini-emulsion particles to make a UV-curable pigment paste, and the UV-curable pigment paste is mixed with water-soluble co-solvent, surfactant and water to make a UV-curable pigment ink. The preparation process is simple and easy. The UV-curable inkjet pigment ink of the invention exhibits good fluency during printing, bright color and strong color fastness in printed products.