Investigations of polylactic acid reinforced composite feedstock filaments for multimaterial three-dimensional printing applications

被引:35
作者
Kumar, Sudhir [1 ]
Singh, Rupinder [2 ]
Singh, T. P. [1 ]
Batish, Ajay [1 ]
机构
[1] Thapar Inst Engn & Technol, Dept Mech Engn, Patiala, Punjab, India
[2] Guru Nanak Dev Engn Coll, Dept Prod Engn, Gill Rd,Gill Pk, Ludhiana 141006, Punjab, India
关键词
Polylactic acid; composite; polyvinyl chloride; wood powder; melt flow rate; peak elongation; Shore D hardness; porosity; thermal and magnetic behavior; 3D; NANOCOMPOSITES; PLA;
D O I
10.1177/0954406219861665
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper reports properties of four different filaments prepared from (i) virgin polylactic acid, (ii) polylactic acid reinforced with polyvinyl chloride, (iii) polylactic acid reinforced with wood powder, and (iv) polylactic acid with reinforcement of Fe3O4 prepared with twin-screw extrusion for possible multimaterial three-dimensional printing. The results suggest that the melt flow rate of composite increases with the increase in reinforcements except for wood powder, which has shown a negative trend. Mechanical properties were also reduced with the loading but with the increase in the Fe3O4 content, these properties were improved. It has been observed that with reinforcement of polyvinyl chloride from 10 wt% to 25 wt% peak elongation and break elongation were reduced by 47.61% and 50%, respectively. Further, thermal analysis suggests that all samples were stable but for reinforced samples, the integral energy has decreased significantly in successive cycles. The vibration sample magnetometery of samples suggested that magnetic properties were dependent on the content of Fe3O4 present in the composite.
引用
收藏
页码:5953 / 5965
页数:13
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