| Titre : |
No chance for dust and contaminations : Surface modification of LSR components hinders adhesion of dirt |
| Type de document : |
texte imprimé |
| Auteurs : |
Andreas Schäfert, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 40-42 |
| Langues : |
Anglais (eng) |
| Catégories : |
Anti-adhérence (matériaux)
caouchouc de silicone liquide
Elastomères -- Moulage par injection
Impuretés
Matériel optique
Poussière
Traîtements de surface
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
LSR optics offers a wide range of applications due to the optical brilliance, the possibility to produce undercut shapes not to mention the competitive pricing. The adhesive surface which is almost impossible to clean however makes the LSR parts vulnerable against contaminations. This characteristic however limits the possible ‧application fields. To overcome this limitation Wilhelm Weber has partnered with Fraunhofer IFAM in a recent research. |
| Note de contenu : |
- Surface modification to allow new LSR applications
- Optical quality is not affected
- First successful application on LED circuit board
- Additional advangtages of the VUV treatment
- Outlook : cooperation partner requests
- Figure : Half of the board was treated with VUV while the the other half has covered. Afterwards norm dust was applied onto the board uniformly and than knocked off (once) in upright position. The dust sticks to the untreated areas while falls of the treated areas
- Fig. 1 : Surface modification is performed with 185 nm low-pressure mercury lamps
- Fig. 2 : Influence of the treatment to the spectral transmission, measured through a 3 mm thick LSR disk. For wavelength > 450 nm no effect could be measured, while below 450 nm there is a slight decrease in transmission which is however not of any effect in most applications
- Fig. 3 : View into the tool to produce the test boards for the modification
- Fig. 4 : Details to compare the treated and untreated areas of the sample board after knocking off the dust |
| En ligne : |
https://drive.google.com/file/d/1eO7JeGIdJQfLnn2mWbBRiqWf_acye3GC/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34636 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 8 (2020) . - p. 40-42
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