What is the role of copper sulfate pentahydrate (CSP) in the preparation of nitrile butadiene rubber (NBR)/clay nanocomposites?

Label:chem

Topic
Copper sulfate pentahydrate (CSP) is a metal salt that has been introduced into nitrile butadiene rubber (NBR)/clay nanocomposites to enhance their mechanical properties through coordination crosslinking. The study investigates how CSP acts as both a curing agent and a reinforcing filler in the rubber matrix.
Answer
CSP serves as a coordination crosslinking agent that forms strong bonds with the nitrile groups in NBR, creating a more robust crosslinking network. This results in improved mechanical properties, such as higher tensile strength and elongation at break. The study demonstrates that increasing CSP content and optimizing curing time can significantly enhance the performance of NBR/clay nanocomposites.
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