Emission of Gas Pollutant in Fused Deposition Modeling 3D Printing Process

• Main Authors: Yun-Chen - Chang, 張芸甄
• Other Authors: Yao-Hsuan Tseng
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/a3j9zg

碩士 === 國立臺灣科技大學 === 化學工程系 === 105 === Fused deposition modeling (FDM) three-dimensional (3D) printer is widely used in production prototypes because of its convenience and inexpensive price. However, most people are not aware of the ultrafine particle pulltants generated via 3D printing process. The lung cancer and cardiovascular disruptions will be induced by exposing to the ultrafine particles, which are smaller than 2.5 μm (PM2.5). One the other hand, volatile organic compounds (VOCs) are released during printing process as well, result in severe disease. The studies regarding the emission of pollutants from 3D printing process and related safety issue are not complete, moreover, the standard measurement of pollutants for 3D printer is not established. This research thus focused on the emission of particles and VOCs from two kinds of popular filaments, acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA). The effects of different brands, filament color, nozzle temperature, and sample size on pollutant emission were investigated in detail to understand the release mechanism in the printing process and proposed an improved method and suggestions. The results showed that ABS filament exhibited much higher particle emission than PLA filament. The styrene is the major emission of VOCs. Furthermore, the particle emission is increases with the increase in nozzle temperature, pavement step, and sample size. As a result, the proper ventilation and filtration system should be equipped with FDM 3D printer for reducing the health risk.