CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.
As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
i
Potential for Exposure to Particles and Gases throughout Vat Photopolymerization Additive Manufacturing Processes
-
8 2022
-
-
Source: Buildings (Basel). 12(8)
[PDF-583.35 KB]
Details:
-
Alternative Title:Buildings (Basel)
-
Personal Author:
-
Description:Vat photopolymerization (VP), a type of additive manufacturing process that cures resin to build objects, can emit potentially hazardous particles and gases. We evaluated two VP technologies, stereolithography (SLA) and digital light processing (DLP), in three separate environmental chambers to understand task-based impacts on indoor air quality. Airborne particles, total volatile organic compounds (TVOCs), and/or specific volatile organic compounds (VOCs) were monitored during each task to evaluate their exposure potential. Regardless of duration, all tasks released particles and organic gases, though concentrations varied between SLA and DLP processes and among tasks. Maximum particle concentrations reached 1200 #/cm| and some aerosols contained potentially hazardous elements such as barium, chromium, and manganese. TVOC concentrations were highest for the isopropyl alcohol (IPA) rinsing, soaking, and drying post-processing tasks (up to 36.8 mg/m|), lowest for the resin pouring pre-printing, printing, and resin recovery post-printing tasks (up to 0.1 mg/m|), and intermediate for the curing post-processing task (up to 3 mg/m|). Individual VOCs included, among others, the potential occupational carcinogen acetaldehyde and the immune sensitizer 2-hydroxypropyl methacrylate (pouring, printing, recovery, and curing tasks). Careful consideration of all tasks is important for the development of strategies to minimize indoor air pollution and exposure potential from VP processes.
-
Keywords:
-
Source:
-
Pubmed ID:37961074
-
Pubmed Central ID:PMC10641710
-
Document Type:
-
Funding:
-
Volume:12
-
Issue:8
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
Supporting Files
-
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
gif 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
xml 
jpeg 
pdf 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg 
jpeg
