The effect of infill density on the fire properties of polylactic acid 3D printed parts: A short communication

被引：18

作者：

Mensah, Rhoda Afriyie ^{[1
]}

Edstrom, David Aronsson ^{[1
]}

Lundberg, Oskar ^{[1
]}

Shanmugam, Vigneshwaran ^{[1
]}

Jiang, Lin ^{[2
]}

Qiang, Xu ^{[2
]}

Forsth, Michael ^{[1
]}

Sas, Gabriel ^{[1
]}

Hedenqvist, Mikael ^{[3
]}

Das, Oisik ^{[1
]}

机构：

[1] Lulea Univ Technol, Dept Civil Environm & Nat Resources Engn, Struct & Fire Engn Div, S-97187 Lulea, Sweden

[2] Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Peoples R China

[3] KTH Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Dept Fibre & Polymer Technol, Polymer Mat Div, S-10044 Stockholm, Sweden

来源：

POLYMER TESTING | 2022年 / 111卷

关键词：

3D printing; Infill density; Fire properties;

D O I：

10.1016/j.polymertesting.2022.107594

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The use of 3D printing technology for manufacturing construction materials is gaining popularity, however, only a few studies have reported the fire behavior of such parts. In this research, the fire properties of 3D printed polylactide acid (PLA) parts with varying infill densities along with the tensile properties were analysed. The results from the fire tests showed that increasing the infill density increased the fuel load, which sustained combustion. Hence, the peak heat release rate and total heat release increased with an increment in infill density percentage. It was also observed that the increasing infill density had no effect on the flammability rating of the parts due to the constant shell thickness used for all the parts. In addition, the tensile strength and ductility of the parts increased with density as a porous part is more susceptible to failure than a solid homogeneous part.

引用

页数：3

共 10 条

[1] Influence of 3D printing process parameters on the mechanical properties and mass of PLA parts and predictive models [J].