Matches in SemOpenAlex for { <https://semopenalex.org/work/W3175636599> ?p ?o ?g. }
- W3175636599 endingPage "102132" @default.
- W3175636599 startingPage "102132" @default.
- W3175636599 abstract "Laser Sintering is an additive manufacturing technology capable of producing robust, geometrically complex polymer parts, with polyamide 12, also known as nylon-12, the most common and well understood feedstock powder. While Laser Sintering has drawn increased interest from industry for producing end-use components directly, little information is currently available regarding the effects of in-service conditions on mechanical performance. When considering applications where parts spend significant periods of time outdoors, such as the automotive sector, the effect of exposure to natural UV light is an obvious concern. To assess their suitability for long-term outdoor applications, Laser-sintered polyamide 12 parts were subjected to up to 2 months of constant UVB radiation. UV exposure was found to cause significant yellowing of the parts, evidenced by their reflectance of blue light decreasing continually as exposure time was increased beyond 24 h. Results from UV/visible spectroscopy demonstrated an increase in UV absorbance with exposure time, attributed to increasing carbonyl concentration. Similarly, X-ray photo-electron spectroscopy showed increases in surface oxygen concentration proportional to UV exposure, with changes to the O 1s and C 1s environments after 2 months of exposure consistent with the generation of new carboxylic acid groups. Photo-degradation led to substantial decreases in both Ultimate Tensile Strength and Elongation at Break, with the deterioration first becoming appreciable between one and two weeks of exposure. Mono-energetic Positron Spectroscopy, a non-destructive surface analysis technique, demonstrated a correlation between these mechanical properties and free volume at the parts’ surfaces. Decreases in free volume were concluded to be due to changes in the nature of the polymer crystal structure and an increase in overall crystallinity at the part surfaces after UV exposure, identified using DSC. Overall, it was concluded that UV exposure causes significant deterioration of Laser-sintered polyamide 12 parts and this should be mitigated against prior to use in long-term outdoor applications." @default.
- W3175636599 created "2021-07-05" @default.
- W3175636599 creator A5003526316 @default.
- W3175636599 creator A5016044317 @default.
- W3175636599 creator A5019064810 @default.
- W3175636599 creator A5028933584 @default.
- W3175636599 creator A5052813412 @default.
- W3175636599 date "2021-10-01" @default.
- W3175636599 modified "2023-10-12" @default.
- W3175636599 title "Degradation of Laser Sintered polyamide 12 parts due to accelerated exposure to ultraviolet radiation" @default.
- W3175636599 cites W1963793863 @default.
- W3175636599 cites W1982295247 @default.
- W3175636599 cites W1985992188 @default.
- W3175636599 cites W1994269973 @default.
- W3175636599 cites W1997012529 @default.
- W3175636599 cites W1998791639 @default.
- W3175636599 cites W2004097517 @default.
- W3175636599 cites W2008510126 @default.
- W3175636599 cites W2010665220 @default.
- W3175636599 cites W2012872621 @default.
- W3175636599 cites W2032334290 @default.
- W3175636599 cites W2058233438 @default.
- W3175636599 cites W2058736536 @default.
- W3175636599 cites W2064909549 @default.
- W3175636599 cites W2067319186 @default.
- W3175636599 cites W2069399322 @default.
- W3175636599 cites W2077862115 @default.
- W3175636599 cites W2079897611 @default.
- W3175636599 cites W2083083825 @default.
- W3175636599 cites W2094432279 @default.
- W3175636599 cites W2122146025 @default.
- W3175636599 cites W2143346998 @default.
- W3175636599 cites W2542681903 @default.
- W3175636599 cites W264771592 @default.
- W3175636599 cites W2741181432 @default.
- W3175636599 cites W2803744402 @default.
- W3175636599 cites W2804451970 @default.
- W3175636599 cites W2883912961 @default.
- W3175636599 cites W2909275778 @default.
- W3175636599 cites W2994060384 @default.
- W3175636599 cites W3002120378 @default.
- W3175636599 cites W3044088076 @default.
- W3175636599 cites W4232800311 @default.
- W3175636599 doi "https://doi.org/10.1016/j.addma.2021.102132" @default.
- W3175636599 hasPublicationYear "2021" @default.
- W3175636599 type Work @default.
- W3175636599 sameAs 3175636599 @default.
- W3175636599 citedByCount "5" @default.
- W3175636599 countsByYear W31756365992022 @default.
- W3175636599 countsByYear W31756365992023 @default.
- W3175636599 crossrefType "journal-article" @default.
- W3175636599 hasAuthorship W3175636599A5003526316 @default.
- W3175636599 hasAuthorship W3175636599A5016044317 @default.
- W3175636599 hasAuthorship W3175636599A5019064810 @default.
- W3175636599 hasAuthorship W3175636599A5028933584 @default.
- W3175636599 hasAuthorship W3175636599A5052813412 @default.
- W3175636599 hasBestOaLocation W31756365991 @default.
- W3175636599 hasConcept C111337013 @default.
- W3175636599 hasConcept C112950240 @default.
- W3175636599 hasConcept C120665830 @default.
- W3175636599 hasConcept C121332964 @default.
- W3175636599 hasConcept C159985019 @default.
- W3175636599 hasConcept C185544564 @default.
- W3175636599 hasConcept C190399342 @default.
- W3175636599 hasConcept C192562407 @default.
- W3175636599 hasConcept C2776798109 @default.
- W3175636599 hasConcept C2777581544 @default.
- W3175636599 hasConcept C2779679103 @default.
- W3175636599 hasConcept C32891209 @default.
- W3175636599 hasConcept C33947775 @default.
- W3175636599 hasConcept C41008148 @default.
- W3175636599 hasConcept C49040817 @default.
- W3175636599 hasConcept C520434653 @default.
- W3175636599 hasConcept C521977710 @default.
- W3175636599 hasConcept C54237361 @default.
- W3175636599 hasConcept C62520636 @default.
- W3175636599 hasConcept C76155785 @default.
- W3175636599 hasConcept C98015330 @default.
- W3175636599 hasConceptScore W3175636599C111337013 @default.
- W3175636599 hasConceptScore W3175636599C112950240 @default.
- W3175636599 hasConceptScore W3175636599C120665830 @default.
- W3175636599 hasConceptScore W3175636599C121332964 @default.
- W3175636599 hasConceptScore W3175636599C159985019 @default.
- W3175636599 hasConceptScore W3175636599C185544564 @default.
- W3175636599 hasConceptScore W3175636599C190399342 @default.
- W3175636599 hasConceptScore W3175636599C192562407 @default.
- W3175636599 hasConceptScore W3175636599C2776798109 @default.
- W3175636599 hasConceptScore W3175636599C2777581544 @default.
- W3175636599 hasConceptScore W3175636599C2779679103 @default.
- W3175636599 hasConceptScore W3175636599C32891209 @default.
- W3175636599 hasConceptScore W3175636599C33947775 @default.
- W3175636599 hasConceptScore W3175636599C41008148 @default.
- W3175636599 hasConceptScore W3175636599C49040817 @default.
- W3175636599 hasConceptScore W3175636599C520434653 @default.
- W3175636599 hasConceptScore W3175636599C521977710 @default.
- W3175636599 hasConceptScore W3175636599C54237361 @default.
- W3175636599 hasConceptScore W3175636599C62520636 @default.
- W3175636599 hasConceptScore W3175636599C76155785 @default.