×
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

Wood/Plastic Composite

Wood/Plastic Composite

Wood/Plastic Composite

(OP)
I am looking for sources of information on extrusion processes for making wood/plastic composite products. Specifically machinery and process specifications; and material properties.

RE: Wood/Plastic Composite

There is a process for continuously compounding wood flour (or other cellulosics) and polymers using a twin screw extruder. COntact Keith Kay at 201-512-3527 or at kkay@wp-corp.com for more details. One important question is the rates. What is appropriate for 500 pphr is not the best for 2000+ pphr.

RE: Wood/Plastic Composite

(OP)
Thank you Steve.

 I will contact these people after the Holidays. This project most likely
has been dropped. I have read about the wood flour and polymer twin screw extrusion
technique at the Forest Products Lab site back in April. I sent them a letter and didn't receive a response. I am still interested in what is commercialy available.

Don Leffingwell



RE: Wood/Plastic Composite

The composite technology has been around for at least 20 years. Vented Conical twin screw extruder is the equipment to run. Formulation of wood powder,HDPE, lubricant, and coupling agent will be a key factor. You can also try wheat straw or agricultural waste composite material. They are fun to try out.If you are interested, e mail me at onyxpm@hotmail.com.

RE: Wood/Plastic Composite

Not to knock the industry, but let's be a little realistic... 2x as heavy as conventional lumber, 1/2 as strong, and 3-4x the price... and, recent tests by CA state facilities indicate they are more prone to reignition than standard redwood in brushfire situations.

What is the chief allure of this product? I don't get it.

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!


Resources