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Characteristics of nanoparticle formation and hazardous air pollutants emitted by 3D printer operations: from emission to inhalation

机译：3D打印机操作发出的纳米粒子形成和危险空气污染物的特征：从排放到吸入

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摘要

This study examined the emissions of nanoparticles and hazardous air pollutants (HAPs) by 3D printer operations and evaluated nanoparticle deposition behavior using a prediction model. Nanoparticles and HAPs were sampled at the Inha University 3D printing center with five fused filament fabrication (FFF)-type 3D printers. The number size distribution of the nanoparticles exhibited a bimodal distribution with dominant peaks over a large size range between 70 and 100 nm and a smaller size range between 10 and 20 nm. With increasing 3D printer operation, the number concentration of 10 nm particles increased, and the final number concentration was 3.6 times higher than that of the background concentration. Nanoparticle formation and agglomeration were characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Model calculations revealed that a large number of nanoparticles between 10 and 30 nm in size are deposited in the lower human respiratory tract (generation number: 16-22). A total of 14 HAPs species were detected, among which hexane, acrylonitrile, and benzene concentrations were the highest.
机译：该研究通过3D打印机操作检测了纳米颗粒和危险空气污染物（HAPS）的排放，并使用预测模型评估纳米颗粒沉积行为。在Ina大学3D打印中心采用纳米粒子和哈普，其中五个熔丝制造（FFF）3D打印机。纳米颗粒的数量尺寸分布在70至100nm之间的大尺寸范围内具有优势峰的双峰分布，并且尺寸范围在10到20nm之间。随着3D打印机操作的增加，10nm粒子的数量浓度增加，最终数浓度高出3.6倍，比背景浓度高3.6倍。通过透射电子显微镜（TEM）和扫描电子显微镜（SEM）的表征纳米粒子形成和附聚。模型计算显示，在下部人呼吸道（产生编号：16-22）中沉积大量10至30nm之间的大量纳米颗粒。检测到总共14种，其中己烷，丙烯腈和苯浓度最高。

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  • 来源
    《RSC Advances》 |2019年第34期|共7页
  • 作者

    Youn Jong-Sang; Seo Jeong-Won; Han Sehyun; Jeon Ki-Joon;

  • 作者单位

    Inha Univ Dept Environm Engn Incheon 22212 South Korea;

    Hallym Univ Dongtan Sacred Heart Hosp 7 Dept Ophthalmol Hwaseong Si Gyeonggi Do South Korea;

    Inha Univ Dept Environm Engn Incheon 22212 South Korea;

    Inha Univ Dept Environm Engn Incheon 22212 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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