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| Aktisil PF 216 |
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| Bis[3-(triethoxysilyl)propyl]tetrasulfide |
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Aktisil PF 216 is an activated Sillitin Z 86, produced by modifying the surface with Bis-(3-triethoxy-silylpropyl)-tetrasulfane. The by-products split off during the treatment reaction are largely removed during the production process which firmly attaches the silane to the filler surface. This helps minize undesirable side effects, as they are in-situ mixing. A special processing technique makes the material hydrophobic.
During vulcanization, the tetrasulfane groups of the Aktisil PF 216 react in the presesce of accelerators and polysulfide bonds with the polymer.
* Application:
In elastomer application Aktisil PF 216 can be on used as a functional filler either on its own or in combination with another non-reinforcing or reinforcing filler. The optimum effect is achieved in curing systems based on sulfur and sulfur donors. It can be used whenever high tensile strengthand high modulus, combined with low tensile and compression set, are as important as excellent processing and extrusion properties. These properties are an ideal combination for pressure-less cured extruded products and sponge rubber. The disulfide and polysulfide bonds to the polymer make Aktisil PF 216 particularly suitable for dynamic applicatins. |
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Appearance: free-flowing powder
Brightness Y: 82
Brightness Z: 75
Volatile matter at 105'C: < 0.8 %
Density: 2.6 g/cm3
Particle size distribution d50: 2.0 mm/d97: 8.4mm
Oil absorption: 40 g/100 g |
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