Jin-Han Jeon commented on this video : (but for some reason he deleted it too). @ 9:02, in case of peel strength (max) 1226.6 : it is a bit different from graph. in the graph any data don't exceed 1200. Answer : It is a wonderful observation. People generally dont notice it. The graph shows the actual load vs deflection values of the sample which had a width of 24mm. However the final reporting width was selected as 1 inch (25.4mm). You can see this @ 6:45 on the software configuration screen and again @ 8:50 on the PDF report screen. @ 8:20 you can see that the Result Peak Load is 1159 gf. This is for 24mm. What the software does is it extrapolates the results to a final reporting width of 25.4mm (1 inch). So the math behind it is : (1159 / 24) x 25.4 = 1226.608. 1159 gf/24mm is the same as 1226.6 gf/inch. Hope I was able to clarify the doubt.
Sorry for the delayed response. A tensile tester can do it. Tensile Tester's are available in various capacities and sizes and can do the Adhesive Peel Tests also. Send us an email at info@packtest.com for an offer.
Yes because the effort required to peel a sample at 90 degree is much less than the effort at 180 degrees. For this reason only, 90 degree is primarily used in cases where the sample substrate is weak (like tissue tapes or thin foam tapes) and 180 degree peel leads to substrate breaking instead of peeling (because tensile strength of material was poorer than its peel strength).
Jin-Han Jeon
commented on this video : (but for some reason he deleted it too).
@ 9:02, in case of peel strength (max) 1226.6 : it is a bit different from graph. in the graph any data don't exceed 1200.
Answer : It is a wonderful observation. People generally dont notice it. The graph shows the actual load vs deflection values of the sample which had a width of 24mm. However the final reporting width was selected as 1 inch (25.4mm).
You can see this @ 6:45 on the software configuration screen and again @ 8:50 on the PDF report screen.
@ 8:20 you can see that the Result Peak Load is 1159 gf. This is for 24mm. What the software does is it extrapolates the results to a final reporting width of 25.4mm (1 inch).
So the math behind it is : (1159 / 24) x 25.4 = 1226.608.
1159 gf/24mm is the same as 1226.6 gf/inch.
Hope I was able to clarify the doubt.
Is this machine can test Nps coating?
Hello, could you tell me the size (width x length) of the metallic plate where you put the tape for the test?
It's 2x8 inches
sir , how to perform breaking strength of same material ?
Sorry for the delayed response. A tensile tester can do it. Tensile Tester's are available in various capacities and sizes and can do the Adhesive Peel Tests also. Send us an email at info@packtest.com for an offer.
Why 90* test shows half the value of 180*? Any specific reason?
Yes because the effort required to peel a sample at 90 degree is much less than the effort at 180 degrees. For this reason only, 90 degree is primarily used in cases where the sample substrate is weak (like tissue tapes or thin foam tapes) and 180 degree peel leads to substrate breaking instead of peeling (because tensile strength of material was poorer than its peel strength).