Influence of Nanoclay on the Thermo-Mechanical Properties of Silicone Pressure-Sensitive Adhesives
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Adhesives
2.3. Preparation of Self-Adhesive Tapes
2.4. Methods
2.4.1. Characterization of the Filler
Fourier Transform Infrared Spectroscopy
X-ray Diffraction
2.4.2. Characterization of the Pressure-Sensitive Adhesives
2.4.3. Characterization of the Adhesive Tape
Peel Adhesion Testing
Tack
Cohesion Test
SAFT Test
Shrinkage
3. Results
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Dellite HPS | Dellite LVF | Dellite CW9 | Dellite 67G | |
---|---|---|---|---|
Description | a nanoclay deriving from a naturally occurring, especially purified montmorillonite. | a nanoclay deriving from a naturally occurring montmorillonite, especially purified and modified with a high content of quaternary ammonium salt (dimethyl dihydrogenated tallow ammonium) | ||
Color | Whitish | White | Off white | |
Moisture [%] | 4–8 | 3 | ||
Loss of ignition [weight%] | 4–6 | 43–48 | 40–45 | |
Particle size (dry) µm] | 7–9 | 15–20 | 7–9 | |
Modifier | - | Dimethyl dehydrogenated tallow ammonium | ||
Specific weight [g/cm3] | 2.2 | 1.7 | ||
Bulk density [g/cm3] | 0.65 | 0.45 | ||
Cation exchange Capacity [Meq/100 g] | 128 | 105 | - | - |
Name of Filler | Content of Filler (pph) | ES 1: Time (min)/Temperature (°C) | Coat Weight 2 (g/m2) |
---|---|---|---|
Dellite HPS | 0.1 | 10/110 | 45 |
0.5 | |||
1 | |||
3 | |||
Dellite LVS | 0.1 | 10/110 | 45 |
0.5 | |||
1 | |||
3 | |||
Dellite CW9 | 0.1 | 10/110 | 45 |
0.5 | |||
1 | |||
3 | |||
Dellite 67G | 0.1 | 10/110 | 45 |
0.5 | |||
1 | |||
3 |
Peel Adhesion [N/25 mm] | Cohesion [h] | SAFT (°C) | Tack [N] | |
---|---|---|---|---|
20 °C | 70 °C | |||
12.75 | >72 | >72 | 150 | 10.45 |
(a) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Shrinkage (%) | ||||||||||||
Content of Additives (pph) | 10 min | 30 min | 1 h | 3 h | 8 h | 24 h | 2 Days | 3 Days | 4 Days | 5 Days | 6 Days | 7 Days |
0 * | 0.42 | 0.41 | 0.64 | 0.90 | 0.96 | 1.02 | 1.10 | 1.14 | 1.33 | 1.33 | 1.33 | 1.33 |
0.1 | 0.129 ±0.005 | 0.201 ±0.003 | 0.241 ±0.005 | 0.262 ±0.002 | 0.281 ±0.003 | 0.301 ±0.004 | 0.315 ±0.003 | 0.333 ±0.005 | 0.352 ±0.005 | 0.391 ±0.003 | 0.425 ±0.004 | 0.496 ±0.004 |
0.5 | 0.121 ±0.004 | 0.187 ±0.005 | 0.229 ±0.005 | 0.254 ±0.005 | 0.272 ±0.003 | 0.289 ±0.005 | 0.314 ±0.005 | 0.328 ±0.002 | 0.352 ±0.005 | 0.382 ±0.005 | 0.442 ±0.003 | 0.475 ±0.003 |
1.0 | 0.097 ±0.003 | 0.154 ±0.004 | 0.200 ±0.005 | 0.235 ±0.003 | 0.258 ±0.002 | 0.279 ±0.003 | 0.299 ±0.005 | 0.313 ±0.005 | 0.351 ±0.004 | 0.410 ±0.003 | 0.441 ±0.005 | 0.446 ±0.002 |
3.0 | 0.071 ±0.005 | 0.121 ±0.002 | 0.134 ±0.005 | 0.154 ±0.002 | 0.174 ±0.003 | 0.201 ±0.005 | 0.229 ±0.005 | 0.255 ±0.005 | 0.298 ±0.003 | 0.345 ±0.004 | 0.412 ±0.005 | 0.412 ±0.004 |
(b) | ||||||||||||
Shrinkage (%) | ||||||||||||
Content of Additives (pph) | 10 min | 30 min | 1 h | 3 h | 8 h | 24 h | 2 Days | 3 Days | 4 Days | 5 Days | 6 Days | 7 Days |
0.1 | 0.134 ±0.004 | 0.210 ±0.005 | 0.292 ±0.003 | 0.321 ±0.002 | 0.346 ±0.003 | 0.355 ±0.004 | 0.371 ±0.002 | 0.383 ±0.003 | 0.432 ±0.005 | 0.464 ±0.004 | 0.501 ±0.004 | 0.533 ±0.003 |
0.5 | 0.126 ±0.003 | 0.154 ±0.002 | 0.205 ±0.004 | 0.235 ±0.003 | 0.274 ±0.005 | 0.310 ±0.005 | 0.354 ±0.005 | 0.370 ±0.005 | 0.397 ±0.004 | 0.454 ±0.003 | 0.478 ±0.005 | 0.525 ±0.005 |
1.0 | 0.087 ±0.004 | 0.152 ±0.005 | 0.197 ±0.003 | 0.244 ±0.004 | 0.318 ±0.005 | 0.342 ±0.003 | 0.358 ±0.003 | 0.391 ±0.003 | 0.402 ±0.005 | 0.432 ±0.002 | 0.454 ±0.003 | 0.497 ±0.004 |
3.0 | 0.092 ±0.003 | 0.212 ±0.005 | 0.179 ±0.002 | 0.281 ±0.003 | 0.301 ±0.005 | 0.324 ±0.004 | 0.345 ±0.002 | 0.368 ±0.003 | 0.359 ±0.005 | 0.389 ±0.004 | 0.454 ±0.003 | 0.454 ±0.005 |
(c) | ||||||||||||
Shrinkage (%) | ||||||||||||
Content of Additives (pph) | 10 min | 30 min | 1 h | 3 h | 8 h | 24 h | 2 Days | 3 Days | 4 Days | 5 Days | 6 Days | 7 Days |
0.1 | 0.221 ±0.004 | 0.314 ±0.005 | 0.396 ±0.003 | 0.432 ±0.004 | 0.454 ±0.005 | 0.513 ±0.002 | 0.545 ±0.003 | 0.596 ±0.004 | 0.610 ±0.005 | 0.645 ±0.003 | 0.649 ±0.005 | 0.651 ±0.004 |
0.5 | 0.198 ±0.005 | 0.284 ±0.003 | 0.362 ±0.005 | 0.391 ±0.002 | 0.421 ±0.003 | 0.451 ±0.004 | 0.472 ±0.005 | 0.496 ±0.005 | 0.512 ±0.003 | 0.531 ±0.005 | 0.549 ±0.004 | 0.567 ±0.005 |
1.0 | 0.171 ±0.003 | 0.144 ±0.005 | 0.347 ±0.003 | 0.174 ±0.005 | 0.238 ±0.002 | 0.341 ±0.003 | 0.357 ±0.005 | 0.488 ±0.003 | 0.387 ±0.004 | 0.406 ±0.002 | 0.425 ±0.002 | 0.554 ±0.003 |
3.0 | 0.116 ±0.004 | 0.098 ±0.002 | 0.325 ±0.003 | 0.248 ±0.004 | 0.303 ±0.004 | 0.340 ±0.005 | 0.366 ±0.005 | 0.454 ±0.002 | 0.389 ±0.003 | 0.436 ±0.003 | 0.546 ±0.004 | 0.546 ±0.005 |
(d) | ||||||||||||
Shrinkage (%) | ||||||||||||
Content of Additives (pph) | 10 min | 30 min | 1 h | 3 h | 8 h | 24 h | 2 Days | 3 Days | 4 Days | 5 Days | 6 Days | 7 Days |
0.1 | 0.263 ±0.004 | 0.314 ±0.003 | 0.354 ±0.004 | 0.379 ±0.005 | 0.397 ±0.004 | 0.425 ±0.003 | 0.461 ±0.002 | 0.496 ±0.004 | 0.514 ±0.003 | 0.526 ±0.003 | 0.543 ±0.004 | 0.559 ±0.005 |
0.5 | 0.189 ±0.002 | 0.289 ±0.005 | 0.347 ±0.003 | 0.356 ±0.004 | 0.389 ±0.003 | 0.421 ±0.005 | 0.455 ±0.005 | 0.488 ±0.005 | 0.499 ±0.002 | 0.512 ±0.003 | 0.521 ±0.005 | 0.533 ±0.003 |
1.0 | 0.163 ±0.004 | 0.257 ±0.005 | 0.339 ±0.004 | 0.357 ±0.005 | 0.373 ±0.002 | 0.401 ±0.002 | 0.415 ±0.005 | 0.428 ±0.003 | 0.446 ±0.005 | 0.489 ±0.004 | 0.514 ±0.005 | 0.520 ±0.003 |
3.0 | 0.105 ±0.003 | 0.242 ±0.002 | 0.312 ±0.005 | 0.342 ±0.003 | 0.359 ±0.005 | 0.399 ±0.004 | 0.403 ±0.003 | 0.417 ±0.005 | 0.432 ±0.004 | 0.456 ±0.003 | 0.504 ±0.004 | 0.504 ±0.004 |
Name | 10 Min | 1 h | 3 Days | 7 Days | |
---|---|---|---|---|---|
Dellite HPS/DL | 0.1 | ||||
0.5 | |||||
1.0 | |||||
3.0 | |||||
Dellite LVF | 0.1 | ||||
0.5 | |||||
1.0 | |||||
3.0 | |||||
Dellite CW9 | 0.1 | ||||
0.5 | |||||
1.0 | |||||
3.0 | |||||
Dellite 67 G | 0.1 | ||||
0.5 | |||||
1.0 | |||||
3.0 |
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Antosik, A.K.; Mozelewska, K. Influence of Nanoclay on the Thermo-Mechanical Properties of Silicone Pressure-Sensitive Adhesives. Materials 2022, 15, 7460. https://doi.org/10.3390/ma15217460
Antosik AK, Mozelewska K. Influence of Nanoclay on the Thermo-Mechanical Properties of Silicone Pressure-Sensitive Adhesives. Materials. 2022; 15(21):7460. https://doi.org/10.3390/ma15217460
Chicago/Turabian StyleAntosik, Adrian Krzysztof, and Karolina Mozelewska. 2022. "Influence of Nanoclay on the Thermo-Mechanical Properties of Silicone Pressure-Sensitive Adhesives" Materials 15, no. 21: 7460. https://doi.org/10.3390/ma15217460