Plastics suitable for -40C applications
Plastics suitable for -40C applications
(OP)
I'm looking for recommendations on plastics suitable for function at a temperature range down to -40C. This will essentially be a block, its sole functional requirement will be a compressive load, so I need something that doesn't become brittle at -40C. The resin must be injection moldable. I'm currently investigating glass filled nylon. What are good cold temperature resins?
Thank you in advance.
Thank you in advance.





RE: Plastics suitable for -40C applications
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http://www.tstar.com/materialsearch/default.aspx
RE: Plastics suitable for -40C applications
Chris DeArmitt PhD FRSC CChem
www.phantomplastics.com
Consultant to the plastics industry
RE: Plastics suitable for -40C applications
LLDPE is good for -70°C, but not much else.
H
www.tynevalleyplastics.co.uk
RE: Plastics suitable for -40C applications
Chris DeArmitt PhD FRSC CChem
www.phantomplastics.com
Consultant to the plastics industry
RE: Plastics suitable for -40C applications
Nylons are not good that cold but impact modifiers help. I would need to check the state of the art with nylons down that low. One problem is the cold air drys them out and nylon impact strength is very dependant on water absorption.
Polyester block co-polymers like Hytrel and Arnitel are very good at -40C but are quite expensive.
Regards
Pat
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RE: Plastics suitable for -40C applications
I've looked at rulon, xenoy 6370, and I'll check out LLDPE next. Anyone actually spec a resin in a product for these application temps? Airplanes come to mind (ignoring thermosets).
RE: Plastics suitable for -40C applications
Regards
Pat
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RE: Plastics suitable for -40C applications
The CAMPUS database may be better for you than matweb although I do use MATWEB too.
Plenty of plastics are used at low temperature like Pat said in ski equipment and much more.
Chris DeArmitt PhD FRSC CChem
www.phantomplastics.com
Consultant to the plastics industry
RE: Plastics suitable for -40C applications
RE: Plastics suitable for -40C applications
Further discussion with some tech reps has led me to be more comfortable using unfilled nylon 6/6 at these temperatures. The rep cited some GM applications as well as military.
RE: Plastics suitable for -40C applications
We make military parts from ST801 and an EMS Chemie equivalent AZ3: http
H
www.tynevalleyplastics.co.uk
RE: Plastics suitable for -40C applications
Many automotive parts have to work at -40C.
RE: Plastics suitable for -40C applications
Regards
Pat
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