Surface Energy Polycarbonate
Surface Energy Polycarbonate
(OP)
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Contact USThanks. We have received your request and will respond promptly. Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting Guidelines |
Surface Energy Polycarbonate
|
Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.
Here's Why Members Love Eng-Tips Forums:
Register now while it's still free!
Already a member? Close this window and log in.
RE: Surface Energy Polycarbonate
jdelgadoc (Automotive)
(OP)
24 Jan 19 23:28
Greetings,
I've been looking on the internet for information about surface energy of injection moulded plastics, specifically Polycarbonate, I want to know if this surface energy changes over time and how can I measure or prove this. I'm in charge of a Coating Process of Poylcarbonate pieces, so I want to have information on why the plastic parts have a defect similar to orange peel after being painted while they were 2 days in storage after moulding process, and I think the surface energy of the plastic and the humidity it can get in storage are the responsibles for my scrap parts.
Your description is unclear. Were the parts molded, stored, and painted, or molded, painted, and stored?
But, yes, surface tension can change with time after molding, or after surface treatment. Surface treatment should be done just prior to painting most plastics. Surface treatment is really an essential part of any painting process. I can be as simple as wiping the surface. But most plastics should be flame or plasma treated.
RE: Surface Energy Polycarbonate
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm