| abstract |
The invention discloses a formaldehyde-removing 3D printing wire rod with an axial orientation pore structure and a preparation method thereof. The wire has an axially oriented pore structure, the length of the pores is 10-800 μm, and the width is 0.1-9 μm. The preparation method comprises placing cellulose/polylactic acid composite material into 0.1-30% activator water solution, stirring at 2000-15000 rpm at 10-80 deg.C for 0.1-5 hr, and filtering to obtain activated wire; and then placing the activated wire and the modifier into a solvent, stirring at 2000-15000 rpm for 0.1-5 hr, filtering, and drying in vacuum at 20-60 ℃ and under the condition of less than 10KPa to obtain the 3D printing wire. The method is simple and practical in process, does not affect the original normal use process of 3D printing, and obviously improves the air purification function effect. |