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Modulus of Elasticity on PTFE
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Posted by: Labtechy

06/09/2005, 08:24:29

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Has any one had any experience finding the modulus of teflon? What type of test do you do? I am currently using a D638 type 1 die to die out samples between 3mm -5mm thick. I am testing them at 4.5" min. The samples break in under 5 min. Elongation is 500-600%. I'm using a laser extensometer to measure strain.
I can not achieve any consistency in my testing. The ultimate elongation and ultimate load are consistent. I'm using a electromagnetic UTM whick has been calibrated and verified for speed and load.






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Re: Modulus of Elasticity on PTFE
Re: Modulus of Elasticity on PTFE -- Labtechy Post Reply Top of thread Forum
Posted by: kelly_bramble

06/10/2005, 11:26:43

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working on it





Modified by kelly_bramble at Fri, Jun 10, 2005, 11:28:00

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Re: Modulus of Elasticity on PTFE
Re: Re: Modulus of Elasticity on PTFE -- kelly_bramble Post Reply Top of thread Forum
Posted by: Labtechy

06/14/2005, 11:41:12

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I see the Modulus of elasticity is blank under tensile strength. Since PTFE is a "plastic", the modulus is very high. My problem is that it not consistent. I have tried finding trends and troubleshooting our procedure. I've even participated in a collaborative study. No luck. Thanks for your help.






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