Why Fill Plastics?
Today, most plastics are filled systems, where a mineral filler has been incorporated into the polymer matrix. The inclusion of such mineral fillers offers a number of advantages for the functionality of the final product. For instance, flame retardants reduce flammability and smoke in fires. Furthermore, mechanical properties can be enhanced.
In addition, the use of Dynasylan® treated fillers improves processing, e.g. rheology, and reduces the cost of the final product. Such improvements in properties can only be achieved when the filler and the polymer have excellent compatibility and adhesion. This is not an easy task, as organic and inorganic substances do not allow for optimal adhesion under normal circumstances. Dynasylan® silanes are an ideal additive for producing filled plastic compounds. They are available for nearly any kind of polymer.
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Typical Fillers in Plastics
- Aluminium trihydroxide
- Magnesium dihydroxide
- China clay
- Glass fibers
- Glass beads
- Quartz flour, silica, sand
- Cristobalite
- Wollastonite
- Mica
- Corundum
- Talc
- Iron oxides
- Titanium oxid
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Applications
- HFFR cable insulations
- Rubber cables
- Glass fiber reinforced composites
- Artificial stone
- Polymer concrete
- Foundry resins
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Melt-Flow Ratio Can Be Improved by Using Dynasylan® Products
The dispersion of fillers in polymers is a significant technological challenge. In general, the reason is the different polarity between the inorganic fillers and the organic polymer matrices. Silanes can act as excellent compatibilizers because of their dual character - the combination of organic and inorganic groups within one molecule. Some significantly improved characteristics:
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Reduced viscosity
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Improved processing
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Increased output
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Reduced agglomeration
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Higher filler loading
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Reduced total cost
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