×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Which transparent plastics best reflect or absorb IR heat?

Which transparent plastics best reflect or absorb IR heat?

Which transparent plastics best reflect or absorb IR heat?

(OP)
Among thin plastics, sheets and films, that are highly transparent to visible light, which are also best at reflecting or absorbing IR heat?

Are there any spray coatings to enhance a clear plastic surface reflecting even more IR without significantly degrading transparency to visible light?

Thank you for any comments.

RE: Which transparent plastics best reflect or absorb IR heat?

You might want to be more specific about the infra-red frequencies that you are talking about reflecting or absorbing. Its a big spectrum.

http://www.eng-tips.com/threadminder.cfm?pid=1529
Use translation assistance for Engineers forum

Note the rules include No Student posting

RE: Which transparent plastics best reflect or absorb IR heat?

I will suggest to look into nano-adhesives such as micro-emulsions.

RE: Which transparent plastics best reflect or absorb IR heat?

The infrared absorption spectrum of every polymer is available in books and online databases. Search for "FTIR polymer spectrum". Every chemical bond absorbs a specific frequency so you can't have an organic polymer that absorbs no IR. The polymers with least types of bond have big windows where they absorb no IR over that frequency range. E.g. polyethylene and polypropylene.

Coatings can help. For example tin oxide is coated onto the glass in your oven to reflect the heat back in. Search for IR reflective coatings.

Chris DeArmitt PhD FRSC
President

Plastic materials consultant to the Fortune 100
www.phantomplastics.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

White Paper – Data Security and Know-How Protection
Our data is constantly exposed to the danger of being intercepted or stolen as it wends its way over global data networks. Data security measures and measures for protecting intellectual property should not, however, first be implemented when data is exchanged – companies must lay the foundation for these measures within their own organization. Download Now
White Paper – Collaboration in the PLM Context
The influence exerted by the Internet of Things (IoT) means that there is a steadily growing need for collaboration in industry. Partners from new industries and areas of application need to be integrated in cross-company business processes to ensure that the lifecycle of smart, connected products can be managed from end to end. Download Now

Close Box

Join Eng-Tips® Today!

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.

Join Us             Close