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Articles
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Specialty Thermoplastic Elastomers for Fluid-Resistant Applications
The chemistry and morphology of all plastic and rubber polymers, including Thermoplastic Elastomers (TPEs), largely dictate their respective resistances to changes in dimensions and other physical properties on exposure to various fluids. Therefore, great care must be exercised in selecting an appropriate TPE for applications involving contact with fluids, to ensure that the required performance and durability will be achieved.
This paper discusses the relative native resistances of various commodity and specialty TPEs to selected petroleum and aqueous based fluids. It also demonstrates that these native resistances to a specific fluid or combination of fluids may be altered by alloying compatible polymers, producing specialty TPE compositions with unique dimensional and property-retention behavior, which may be optimized for a given application.
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