Plastic Pipes Conference Association # 2023 Lake Buena Vista
Steve Torchia, Justyn Miller, Gavin Guo
In the polymer world, the balance between processability and finished product property is always a hot theme. Converters are continuously evaluating the potential options to reduce total costs by increasing line speed, reducing energy consumption to obtain improved product property with lower scrap rate. Among them, the processing aids are acting the key role to achieve the optimized results.
To improve the processability of polyolefins during extrusion and injection molding, Sasol developed a highly crystalline Fischer-Tropsch processing aid. It is highly compatible with polyolefins and disperses in the polymer matrix solution.
The Fischer-Tropsch (FT) processing aid acts as a viscosity modifier during the processing of polyolefins, allowing faster plasticization. The addition of FT processing aid allows for the use of lower temperature profiles and hence reduces cooling times. These factors ultimately result in faster line speed or faster cycle times. With the assistance of FT processing aid, the lower melt index resins which have better mechanical properties can be processed. Moreover, the easier flowability of FT processing aid added resins can further reduce the melt pressure, which translates to power saving. Fischer-Tropsch processing aid can also be used to aid the dispersion of inorganic fillers and pigments in polyolefins during compounding prior to extrusion or injection molding. Ultimately, FT processing aid as the polyolefin processing aid is an effective additive for converters to reduce costs and improve product quality.
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