sarinox
Hazard to Self
Posts: 79
Registered: 21-4-2010
Member Is Offline
Mood: No Mood
|
|
Glow in the dark beads
Hello all,
Please examine the attached image of a bead. The left side shows the bead under ambient room lighting, while the right side captures it in a dark
environment after UV exposure, demonstrating its photoluminescent properties. As observed, the bead emits visible light in darkness following UV
excitation.
I have a few technical inquiries regarding this material:
1- Does anyone have insights into the specific photoluminescent compound or class of chemicals likely responsible for the light-emitting properties of
this bead?
2- The bead material appears to resemble a thermoset polymer. but the link here: https://www.amazon.com/Misright-Necklace-Decoration-Birthday... says it is acrylic!
3- Would it be feasible to dissolve or chemically modify this bead material and subsequently reform it into a new shape using a mold? If so, any
guidance on potential solvents or processes would be appreciated.
-Sarinox
|
|
|
Sir_Gawain
Hazard to Others
Posts: 420
Registered: 12-10-2022
Location: Due South of Due West
Member Is Offline
Mood: Like a pendulum
|
|
The photoluminescence compound is probably strontium aluminate, or possibly zinc sulfide. If it is acrylic, it should dissolve in DCM.
“Alchemy is trying to turn things yellow; chemistry is trying to avoid things turning yellow.” -Tom deP.
|
|
|
Fulmen
International Hazard
Posts: 1716
Registered: 24-9-2005
Member Is Offline
Mood: Bored
|
|
Back in the day I bought phosphorescent powder from fishing supply stores. This can be added to clear epoxy or whatever castable polymer you prefer,
there are many to choose from. I used it on boomerangs for nighttime throwing.
We're not banging rocks together here. We know how to put a man back together.
|
|
|
sarinox
Hazard to Self
Posts: 79
Registered: 21-4-2010
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by Fulmen  | | Back in the day I bought phosphorescent powder from fishing supply stores. This can be added to clear epoxy or whatever castable polymer you prefer,
there are many to choose from. I used it on boomerangs for nighttime throwing. |
Hi Fulmen, and thank you for your reply.
Do you happen to know what type of powder this might be? As far as I remember, I have not encountered such phosphorescent powder in any local fishing
supply stores. I do have some phosphorescent acrylic paints, manufactured in China, though they appear to be of lower quality compared to the bead I
shared. Specifically, the paints do not glow as brightly, and their light-emitting properties fade significantly faster.
|
|
|
sarinox
Hazard to Self
Posts: 79
Registered: 21-4-2010
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by Sir_Gawain | | The photoluminescence compound is probably strontium aluminate, or possibly zinc sulfide. If it is acrylic, it should dissolve in DCM.
|
Hi Sir_Gawain, And thanks for your reply.
By DCM you mean Dichloromethane (Methylene Chloride) right?
|
|
|
Fulmen
International Hazard
Posts: 1716
Registered: 24-9-2005
Member Is Offline
Mood: Bored
|
|
No sorry, I have no data on it. IIRC I found it in the ice fishing supplies.
We're not banging rocks together here. We know how to put a man back together.
|
|
|
sarinox
Hazard to Self
Posts: 79
Registered: 21-4-2010
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by Sir_Gawain | | The photoluminescence compound is probably strontium aluminate, or possibly zinc sulfide. If it is acrylic, it should dissolve in DCM.
|
After doing more research on YouTube, I think Strontium Aluminate compound and its variants will show lower rates of fading.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
