For all you plastic boffins - Wanted to solve a Bloddy Big problem @ work - Urgent reuirement for some talc filled (5% -20%) PP which must have an Izod value @+ 23deg c of >20 and with a Flexural Modulus of >1650. Only reqire about 2 bags for an urgent mould tool trial!!!!!!!! Any one have some spare??

Rich

does anyone know what the heck he's on about ?

and what pills he's been taking to get like this



(Sorry not a clue mate, but its made it go to the top of the list again)

Got me baffled

My daughter has an Izod, 2000 songs on it, isn't technology wonderful!

You want someone who works for LinPac by the sound of it.

?

Blockhead by name and nature!

If you knew what I was on about then, you may have been able to help me out. Fat chance but worth a try.

Already spoken to Lin-pac Pete but thanks anyway!

I guess you tried Vita (VTS) as well then?

I know what hes on about
but I don't have anysorry

Is it some sort of release agent ?
He could also be some sort of secret agent talking in code

[Edited on 18/11/05 by ayoungman]

I know what he is on about...

But sorry, I dont have any to hand!

David

PS for those that dont know...
Talc is used as a filler in a lot of plastics. Plastic products you buy arent pure plastic as on their own they are pretty useless. You have to add lots of stuff to them to get the properties you want. Most fillers are there to reduce cost.

Other additives include stuff like mica to increase heat resistance, carbon black to increase UV resistance, anti blocking agents, anti static agents, processing additives (high or low molecular weight waxes), colourants and dyes....

PP is Poly Propylene

Izod values are impact test values (do a search on Google for Izod Value).

Flexural Modulus is what it sounds like...how bendy it is. The higher the number the stiffer it is.

They do teach us some useful stuff here . I hope thats all right or I will look a right fool

[Edited on 18/11/05 by flak monkey]

Cooo You never stop learning do you!..
Just learned a bit more..

Try ringing Linpac in Dunstable (automotive division) now called Eco Mould. They mould battery tray covers for Ford in PPTD20 amongst others. Ask for a guy called Brian Bridge (Manufacturing manager). I know they'll have bags of the stuff, and some non-production material which they'll let go for a few drinks. Tell Brian (if he still works there!) Andrew Kiss recommended him.

Alternatively try these guys - very helpful:
Warden Plastics Ltd
6 Caleb Close, Dunstable Road
Luton
LU4 8DR(Road Map)
Bedfordshire
Tel: 01582 573030
Fax: 01582 508751 They are moulders of all sorts so should be able to help.

Hi guys


David, your more or less right with your explanation - didn't have time to explain when I posted the question.

In my case the filler is required to increase rigidity but as an aside may also reduce cost (not always true). Down side is that it can reduce the impact resistance of the component which is what has happened with my part. Hence I'm trying to find a material which suits all of my requirements. I've since found out that clay is also added to Polypropolyene material as a filling agent and does not reduce the base materials impact strength. So worth a try as I'm already 6 weeks late into production.

Ecomould already mould the parts for me anyway so thanks for the idea.

Aren't you all glad Kit Cars aren't as complicated or as expensive as Mouldings / tools! My project has 4 tools which have in excess of £125k's worth of tool mod's already!!! Just think how many cars I could buy with that lot eh!!!

Cheers all anyway - sorry to confuse too.
Rich

...so who do you work for? Can't your materials supplier support you on this one? I assume you are automotive?