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调查3D打印过程中环境持久性自由基 (EPFR) 排放的情况

Farhana Hasan¹, Phillip M Potter², Souhail R Al-Abed²

¹Department of Environmental Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.

Chemical engineering journal (Lausanne, Switzerland : 1996)

|March 21, 2024

概括

3D打印会释放含有环境持久自由基 (EPFR) 的潜在有害颗粒. 纤维丝中的金属含量,就像 ABS-blue 中的铜一样,显著增加了 EPFR 和总颗粒物排放量,造成吸入风险.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
毒理学毒理学毒理学

背景情况:

由于粒子和气体释放,3D打印排放引发了健康问题.
环境持久性自由基 (EPFR) 是在3D打印的颗粒物 (TPM) 中发现的有机基.
在EPFR生成和TPM产量中,发光线组合的作用尚未完全理解.

研究的目的:

为了研究TPM中的EPFRs从具有不同金属含量的3D打印丝的生成.
为了确定发光线金属组成对EPFR类型,度和TPM排放率的影响.
评估与吸入的EPFR和3D打印产生的超氧化物相关的潜在健康风险.

主要方法:

使用不同金属组合的烯-丁-烯 (ABS) 丝 (ABS-蓝与铜,ABS-黑与铁).
在3D打印过程中量化总颗粒物 (TPM) 排放量.
采用电子磁共振 (EPR) 光谱测量EPFR度和特征在TPM.

主要成果:

蓝色ABS灯丝产生了比黑色ABS (7.29μg/g) 高的TPM排放量 (11.28μg/g).
与ABS黑色TPM (9.72 × 1016旋转/g) 相比,ABS蓝色TPM的EPFR度显著更高 (6.23 × 1017旋转/g).
ABS蓝色中的铜与以氧为中心的EPFR相关 (98天的寿命),而ABS黑色显示超氧化基 (26天的寿命).

结论:

导线金属含量,特别是铜,在3D打印中极大地影响EPFR生成和TPM排放水平.
已识别的EPFR和超氧化物具有长寿命,这表明吸入后存在潜在的健康风险.
需要进一步的研究,以充分阐明3D打印排放的毒理影响.

关键词:

通过3D打印打印3D打印.电子的偏磁共振是一种超磁共振.在环境中持久的自由基.丝材丝材丝材丝材丝材化灯丝制造工艺化灯丝制造工艺金属添加剂的金属添加剂总颗粒物物质总量颗粒物质总量

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