熔融沉積成型3D列印因為其便利性和經濟性而廣泛應用在生產原型設備，然而大部分人卻未注意到列印時會釋放細懸浮微粒，微粒小於2.5 µm（PM2.5）時，會造成肺癌、心血管等身體上的危害，亦會伴隨著揮發性有機物質（VOCs）排放，對健康危害更加嚴重，目前對3D列印釋放污染物的研究尚不完善，且對3D 列印機之污染排放尚未有一致標準。
本實驗研究目前最廣泛使用的熔融沉積成型3D列印技術，搭配常用的ABS和PLA線材進行研究，建立適合的分析方法，量測3D列印機在列印過程中所釋放的微粒與有機揮發性化合物，暸解汙染物來源，並針對列印噴頭溫度、列印尺寸、品牌、顏色和材料，研究各種不同參數對汙染物排放的影響，並進一步分析在列印過程中污染物的釋放行為，提出建議與改善的辦法。
　　實驗結果發現，ABS線材所釋放的粒子遠大於PLA線材，並伴隨VOCs氣體的排放，主要釋放物為苯乙烯，此外微粒的釋放量會隨著提高噴頭溫度、實心列印步驟與樣品尺寸而增多。因此，使用三維列印機時，需保持空氣流通，及配備過濾系統以降低危害風險。

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.

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