Manufacturing a Porous Structure According to the Process Parameters of Functional 3D Porous Polymer Printing Technology Based on a Chemical Blowing Agent

• Published in: IOP conference series. Materials Science and Engineering Vol. 229; no. 1; pp. 12027 - 12033
• Main Authors: Yoo, C J, Shin, B S, Kang, B S, Yun, D H, You, D B, Hong, S M
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.09.2017
• Subjects: Blowing agents; Density; Diameters; Fused deposition modeling; Mechanical properties; Nozzles; Optimization; Polymers; Porosity; Process parameters; Rapid prototyping; Three dimensional printing
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/229/1/012027

In this paper, we propose a new porous polymer printing technology based on CBA(chemical blowing agent), and describe the optimization process according to the process parameters. By mixing polypropylene (PP) and CBA, a hybrid CBA filament was manufactured; the diameter of the filament ranged between 1.60 mm and 1.75 mm. A porous polymer structure was manufactured based on the traditional fused deposition modelling (FDM) method. The process parameters of the three-dimensional (3D) porous polymer printing (PPP) process included nozzle temperature, printing speed, and CBA density. Porosity increase with an increase in nozzle temperature and CBA density. On the contrary, porosity increase with a decrease in the printing speed. For porous structures, it has excellent mechanical properties. We manufactured a simple shape in 3D using 3D PPP technology. In the future, we will study the excellent mechanical properties of 3D PPP technology and apply them to various safety fields.