EVONIK DYNACOLL® S
Evonik's DYNACOLL® S product range offers high molecular weight thermoplastic copolyesters, used in hot melt and solvent-based adhesives and sealants. The product range includes amorphous and crystal line grades with different melting points and various degrees of crystallinity or hardness.
The crystalline grades provide high adhesive strength and good resistance to chemicals and sol vents. For solvent based applications, amorphous grades are recommended due to their good solu bility in non-chlorinated solvents and excellent adhesion to a wide range of substrates.
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| PRODUCT RANGE | |||||
| Crystalline Grades | Amorphous Grades | ||||
| S 1272 | S 1402 | S 1606 | S 1611 | S1426 | |
| Properties | |||||
| Softening Point [°C] | 140 | 100 | 155 | 130 | 140 |
| Melting Point [°C] | 128 | 901) | |||
| Glass Transition Temp. [°C] | 0 | -10 | 65 | 50 | 35 |
| Hydroxyl Number [ mg KOH/g] | 5 | 4 | 4 | 4 | |
| Acid Number [mg KOH/g] | 3 | 2 | 2 | 2 | |
| Viscosity Number [cm³ /g] | 84 | 78 | 62 | 61 | 90 |
| Shore D Hardness | 53 | 27 | 80 | 79 | 78 |
| Open Time [s] | 10 | 15 | 15 | 10 | 20 |
| Tensile Strength [N/mm²] | 25 | 10 | 60 | 20 | 50 |
| Elongation at Break [%] | 400 | 400 | 5 | 3 | 5 |
| Melt Flow Rate (MFR) [g/10 min] | |||||
| 160°C | 30 | 100 | |||
| 180 °C | 60 | 220 | 10 | 50 | 15 |
| 200°C | 120 | 360 | 30 | 100 | 30 |
| 220°c | 250 | 60 | 190 | 60 | |
| Melt Viscosity [Pa•s] | |||||
| 160°C | 330 | 80 | |||
| 180 °C | 140 | 50 | |||
| 200°C | 65 | 30 | 150 | 70 | 270 |
| 220°C | 10 | 90 | 15 | ||
| Solubility | |||||
| Methylene chloride | + | + | + | + | + |
| Trichloroethylene | - | + | + | + | + |
| Ethyl acetate | - | - | + | + | + |
| MEK (methylethyl ketone) | - | - | + | + | + |
| Toluene | - | · | - | + | + |
| Dioxolane (Dioxacyclopentan) | - | + | + | + | + |
| 1) optical method + = > 10 % (soluble) • = < 10 % (slightly insoluble) - = < 1 % (virtually insoluble) | |||||
