Manufacturing of thin-walled, complex polymer parts by DLP printing – the influence of process parameters on the crosslinking density
[ 1 ] Wydział Technologii Chemicznej, Politechnika Poznańska | [ 2 ] Instytut Technologii Materiałów, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ SzD ] doctoral school student | [ P ] employee
2023
scientific article
english
- additive manufacturing
- DLP
- acrylic resin
- crosslinking density
- FTIR–ATR
EN This study investigated the relationship between the parameters of the DLP manufacturing process and the structure of photopolymerizable acrylic resins. Four different process parameters were established to produce different thin-walled acrylic sample series: exposure time, layer thickness, area offset, and number of transition layers. The structure and the surface of the obtained samples were examined with the use of the FTIR–ATR method and an optical microscope, respectively. It was proved that extension of the exposure time increases the density of crosslinking and sample thickness. A decreasing crosslinking density due to rising layer thickness is observed. The area offset affects only the dimensions of the sample, predictably reducing the dimensions of the sample as the compensation increases. The absence of transition layers proved unfavorable in many respects, both structurally and geometrically.
e145936-1 - e145936-8
Article Number: e145936
CC BY-NC-ND (attribution - noncommercial - no derivatives)
open journal
final published version
at the time of publication
100
1,2