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Solef PVDF and Hylar PVDF homopolymers are used to make durable, long-lasting membranes. Their toughness, chemical resistance and oxidative stability allow membranes to tolerate a wide variety of feed streams and cleaning methods. These materials are soluble in conventional processing solvents to make hollow fiber and flat sheet membranes by DIPS and TIPS processes.
Solef PVDF homopolymers are made using a suspension-type polymerization process which provides a linear, gel-free product. They are available in powders and pellets that cover a wide range of molecular weights. High molecular weight grades improve fiber strength and minimize fiber breakage.
Hylar PVDF is a broad MWD grade of PVDF with low crystallinity and physical properties of standard homopolymers. Hylar 460 also has a relatively high concentration of chain branches that give it unique resistance properties in certain applications.
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