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Project 10-562 Final Report: Peel Adhesion of Five Tapes |
 Author: John F. Fletcher
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OBJECTIVE
This project was initiated to characterize the peel adhesion property of the five samples submitted.
MATERIALS
Sample Identification
Samples were received with the following identification:
- Permacel P-99 tape within expiration date (Chemsultants Sample “A”)
- Permacel P-99 tape with expired date (Chemsultants Sample “B”)
- Scapa 8010-B tape within expiration date (Chemsultants Sample “C”)
- Intertape Polymer Group LA26 tape within expiration date (Chemsultants Sample “D”)
- Elcometer 99 tape within expiration date (Chemsultants Sample “E”)
METHODS
Sample Preparation
Sample size
The samples were use as received. The widths were accurately measured. Test results were normalized to exactly a one inch width.
Substrates
The stainless steel panels used are an 18 gauge (.043 in.) 304 grade with a bright annealed finish, obtained from ChemInstruments, Fairfield, OH, which meet PSTC specifications. The panels were cleaned in accordance with PSTC Appendage C, “The Cleaning of Test Surfaces.”
Sample Conditioning
All test samples were conditioned at 73 ± 3 °F and 50 ± 5% Relative Humidity for at least 24 hours prior to testing.
Testing
Peel Adhesion
Peel adhesion was tested according to the PSTC-101 method. Chemsultants is A2LA accredited for this method. Peel adhesion tests were performed on a ChemInstruments AR-1000 Adhesion Release Tester with the EZ Lab software program.
Tape samples were applied to a standard stainless steel substrate at a rate of 24 in./min. with 41/2 pound rubber covered roller according to the method. The tape was then peeled from the substrate at a 180° angle after a dwell time of 90 seconds. The force required for removal was measured, averaged, and the mode of failure noted. Ten replicates of each tape were tested.
Test Conditions
All tests were conducted at 73 ± 3°F and 50 ± 5% Relative Humidity.
RESULTS and DISCUSSION
Results in Newtons per ten millimeters width are presented in Table 1.
The same results in ounces per inch width are presented in Table 2.
Table 1
180° Peel Adhesion per PSTC-101 on stainless steel.
90 sec. dwell.
N/10 mm. |
|---|
| | Permacel P-99 tape within expiration date, "A" | Permacel P-99 tape with expired date, "B" | Scapa 8010-B tape within expiration date, "C" | Intertape Polymer Group LA26 tape within expiration date, "D" | Elcometer 99 tape within expiration date, "E" |
| 1 | 6.68 | 6.39 | 5.48 | 10.97 | 6.71 |
| 2 | 6.8 | 7.07 | 5.32 | 11.78 | 6.55 |
| 3 | 6.72 | 6.93 | 5.3 | 11.35 | 6.53 |
| 4 | 6.82 | 7.12 | 5.44 | 10.78 | 6.66 |
| 5 | 6.39 | 7 | 5.34 | 11.26 | 6.29 |
| 6 | 6.84 | 6.51 | 5.3 | 10.96 | 6.25 |
| 7 | 6.57 | 7.05 | 5.02 | 11.23 | 6.36 |
| 8 | 6.54 | 7.89 | 5.11 | 11.3 | 6.29 |
| 9 | 6.8 | 7.36 | 5.14 | 11.37 | 6.14 |
| 10 | 6.64 | 7.25 | 5.03 | 11.14 | 6.37 |
| Average | 6.68 | 7.06 | 5.25 | 11.21 | 6.42 |
| Std. Dev. | 0.15 | 0.42 | 0.16 | 0.28 | 0.19 |
Table 2
180° Peel Adhesion per PSTC-101 on stainless steel.
90 sec. dwell.
oz./in. |
|---|
| | Permacel P-99 tape within expiration date, "A" | Permacel P-99 tape with expired date, "B" | Scapa 8010-B tape within expiration date, "C" | Intertape Polymer Group LA26 tape within expiration date, "D" | Elcometer 99 tape within expiration date, "E" |
| 1 | 61 | 58.3 | 50.1 | 100.3 | 61.3 |
| 2 | 62.1 | 64.6 | 48.6 | 107.6 | 59.9 |
| 3 | 61.4 | 63.3 | 48.4 | 103.7 | 59.6 |
| 4 | 62.3 | 65.1 | 49.7 | 98.5 | 60.8 |
| 5 | 58.4 | 63.9 | 48.8 | 102.9 | 57.5 |
| 6 | 62.5 | 59.4 | 48.4 | 100 | 57.1 |
| 7 | 60 | 64.4 | 45.9 | 102.6 | 58.1 |
| 8 | 59.8 | 72.1 | 46.6 | 103.2 | 57.5 |
| 9 | 62.1 | 67.1 | 46.9 | 103.9 | 56.1 |
| 10 | 60.7 | 66.2 | 46 | 101.8 | 58.2 |
| Average | 61 | 64.4 | 47.9 | 102.5 | 58.6 |
| Std. Dev. | 1.3 | 3.9 | 1.5 | 2.5 | 1.7 |
All tapes peeled cleanly from the stainless steel with no adhesive residue.
If you have any questions regarding the test methods or results, please let me know.
| Best regards, | |
| Chemsultants, Inc. | Reviewed by |
| | |
| Donald L. Eppink | David A. McCann |
| Senior Chemist | Director, Research & Development |
| Physical Testing Laboratory Manager | |
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