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Topic: Polypropylene 40% talc filled  (Read 4390 times)

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Offline Olechka

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Polypropylene 40% talc filled
« on: June 09, 2014, 10:24:31 PM »
Hi
Can you please recommend any publications/studies regarding the effect of temperature for PP 40% talc filled vs PP? This year at work we had a high rate of occurrence of PP 40% talc filled parts being cracked during receiving this winter and I was curious if it was due to the material of the part and the effect of temperature on it. ( this winter was really cold in Chicago).
Thank you!

Offline curiouscat

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Re: Polypropylene 40% talc filled
« Reply #1 on: June 09, 2014, 11:25:49 PM »
What sort of parts?

Offline billnotgatez

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Re: Polypropylene 40% talc filled
« Reply #2 on: June 10, 2014, 08:05:22 AM »

Offline Olechka

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Re: Polypropylene 40% talc filled
« Reply #3 on: June 10, 2014, 09:23:53 AM »
The parts are to assemble healthcare pumps (handle), when we were receiving these from supplier in winter we had a lot of these with cracks. it could be the process at supplier but i am just wondering if the cold winter temperatures could cause that. i am not looking for some basic properties for the plastic (i can google it myself), i am looking for some publications that i can present at work (regarding temperature effect on PP 40% talc filled vs PP). Thank you!

Offline Enthalpy

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Re: Polypropylene 40% talc filled
« Reply #4 on: June 10, 2014, 10:04:35 AM »
"Kunststofftabellen" by Bodo Carlowitz. Apparently not translated in English.
I don't have my copy here, but there are certainly some properties of talc-filled PP, including the resilience.

Effect of the cold alone? Or rather, cold and much talc combined make PP really too brittle, so the parts break under light load?

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