▎ 摘　　要

NOVELTY - Preparing 3D printing temperature-light double response hydrogel smart material comprises e.g. (i) taking N-isopropylacrylamide as monomer, XLG type synthetic lithium magnesium silicate as crosslinking agent, potassium persulfate as initiator, N,N,N',N'-tetramethylethylenediamine as catalyst, nano wood pulp cellulose as reinforcing phase and graphene oxide as photothermal conversion phase, and (ii) ultrasonically oscillating graphene oxide powder in distilled water for 20-30 minutes under ice water bath conditions, stirring for 15-20 minutes, then adding nanowood pulp cellulose, then adding XLG type synthetic lithium magnesium silicate, then adding N-isopropyl acrylamide, then adding potassium persulfate and N,N,N',N'-tetramethylethylenediamine, and stirring for 5-6 minutes, (a) loading the prepared temperature-light double-response hydrogel into print syringe, removing the bubbles in cylinder, connecting syringe to a stainless steel needle, and printing. USE - The method is useful for preparing 3D printing temperature-light double response hydrogel smart material. ADVANTAGE - The material: has excellent distortion function, mechanical strength, low production cost, and printing property. DETAILED DESCRIPTION - Preparing 3D printing temperature-light double response hydrogel smart material comprises (i) taking N-isopropylacrylamide as monomer, XLG type synthetic lithium magnesium silicate as crosslinking agent, potassium persulfate as initiator, N,N,N',N'-tetramethylethylenediamine as catalyst, nano wood pulp cellulose as reinforcing phase and graphene oxide as photothermal conversion phase, where molar ratio between monomer, initiator and catalyst is 100:0.370:0.638, concentration of nano-wood pulp cellulose is 10-12 mg/ml, concentration of graphene oxide is 2-2.5 mg/ml, and mass fraction of crosslinking agent is 3-3.5 wt.%, and (ii) ultrasonically oscillating graphene oxide powder in distilled water for 20-30 minutes under ice water bath conditions, stirring for 15-20 minutes, then adding nanowood pulp cellulose, stirring for 30-40 minutes, then adding XLG type synthetic lithium magnesium silicate, stirring for 60-65 minutes, then adding N-isopropyl acrylamide, stirring for 120-130 minutes, then adding potassium persulfate and N,N,N',N'-tetramethylethylenediamine, and stirring for 5-6 minutes, (a) loading the prepared temperature-light double-response hydrogel into print syringe, removing the bubbles in cylinder, connecting syringe to a stainless steel needle with an inner diameter of 0.6 mm, then connecting syringe to a laboratory-made 3D printer bolus pump, and printing, (b) converting the 3D model designed in advance by Solidworks to a file in .STL format, pre-processing designed model by Slic3rsoftware39 software, designing and controlling the print path with open source software Fronterface, and (c) printing temperature-light double-response hydrogel based on designed model on a glass plate, placing printed hydrogel under vacuum, and allowing to stand in the environment of 25-27 degrees C for 24-26 hours to obtain 3D printing temperature-light double response hydrogel smart material.