K 2019 is the world’s largest trade fair for plastics and rubber. Over 232,000 visitors attended the show in 2016, with over 3,200 exhibitors on hand. The 2019 show will focus on raw materials, machinery, reinforced plastics and more. Momentive Performance Materials will exhibit this year offering customers insight into our cutting-edge materials to create new, successful products for multiple industries, including in the automotive, healthcare and lighting. See below for a preview of what our experts will be presenting at K 2019, including information on our live demo. We look forward to seeing you at the show!
SilFORT* coatings enable plastics and polymers to replace glass and metal in exterior and interior applications. SilFORT hardcoats offers outstanding UV protection and resistance to abrasion, chemicals and solvents. With SilFORT coatings, the color, gloss and light transmission longer for improved performance and durability. Our new SILFORT AS4700 hardcoat combines outstanding protection with best-in-class light transmission rates of up to 93% for applications like autonomous driving sensors. Learn More
Primer-less adhesion is one of the most interesting potential benefits of liquid silicone rubber (LSR). At K 2019, Momentive will introduce its new family of Silopren* LSR 27x9, which offers excellent adhesion to polycarbonate, PBT and co-polyesters. The focus area of these materials is innovative hard-soft combinations in consumer goods and healthcare products, featuring integrated functionality such as sealing, dampening or haptic elements. Learn More
Momentive’s extensive portfolio of Silanes additives continue to deliver a wide variety of innovative solutions in industries such as automotive, electronics, wire and cable, building and construction. Our key formulated solutions include our TOSPEARL* portfolio, PEarlene* masterbatches and silicone resins for optical light diffusion. Our innovative solutions can allow for greater ease of formulation and enhanced processability and include adhesion promoters that can enable coupling and dispersion. Learn More
ABSTRACT: Controlling the dispersion of precipitated silica into a rubber compound matrix is a significant challenge for achieving the consistent mechanical property improvements that are characteristic of polymer nanocomposites, as inorganic silica aggregates are generally immiscible with the organic elastomeric phase. To prevent silica flocculation, the silica surface is hydrophobized by grafting amphiphilic silane molecules such as 3-Octanoylthio-1-propyltriethoxy silane (OPTES), a blocked mercapto silane trademarked NXT* silane by Momentive Performance Materials Inc.
This approach has been successful for silica dispersion. However, the silica aggregates exhibit self-assembly into highly anisotropic structures depending on the amount of grafted silane per square nanometer of silica surface area, which directly affects the mechanical properties of the rubber. Simulations suggest that this self-assembly reflects a balance between the energy gained when the polar silica aggregates re-flocculate and the entropy of distorting the grafted silane molecules. Both simulation and experimentation demonstrate that considerable control of filler morphology within the polymer matrix is possible through targeted silanization, resulting in enhanced mechanical properties of silica-filled rubber.
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Momentive is a global leader in silicones and advanced materials, with a 75- plus year heritage of being first to market with performance applications that support and improve everyday life. Momentive delivers science-based solutions for major industries, by linking its custom technology platforms to allow the creation of unique solutions for customers.
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