Poly(lactic acid)(PLA)/ethylene-butyl acrylate-methacrylic acid glycerin ester copolymer(PTW)blends were prepared by 3D print through a fused deposition modeling(FDM)process,and the effect of 3D printing process pa-rameters,including nozzle temperature,printing platform temperature,and printing speed,on the mechanical properties of the PLA/PTW blends were investigated through a single-factor experiment.Based on this experiment,a 3-factor,3-level orthogonal experiment was designed to optimize the 3D-printing process parameters.The results indicated that the impact strength and tensile strength of the blends exhibited an increasing trend at first and then tended to decrease with an increase in the nozzle temperature,and both of them increased with an increase in the printing platform temperature but decreased with an increase in the printing speed.The influence of various process parameters on the comprehensive me-chanical properties of the PLA/PTW blends was in a descending order of nozzle temperature>printing speed>print-ing platform temperature.The printed PLA/PTW product exhibited optimal comprehensive mechanical properties at a nozzle temperature of 210℃,a printing platform temperature of 80℃,and a printing speed of 40 mm/s.
关键词
3D打印/聚乳酸/乙烯-丙烯酸丁酯-甲基丙烯酸缩水甘油酯共聚物/力学性能
Key words
3D printing/poly(lactic acid)/ethylene-butyl acrylate-methacrylic acid glycerin ester copolymer/mechanical property
维普
万方数据