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Coupling Agents


The principle is simple: With better interfacial bonds between dissimilar materials, the desirable properties of each component can be carried throughout a composite material. This means that component properties are maintained or, in some cases, enhanced. Putting this principle to work for our customers, Momentive has developed silane coupling agents that may help optimize mechanical, electrical, thermal and other properties of the end product. Additionally, these agents can help avoid some of the drawbacks of traditional coupling agents, such as premature vulcanization of a tire compound, or loss of flexural strength in a glass-reinforced composite exposed to high heat and moisture.

Momentive scientists have developed advanced coupling agent technology between resins and minerals, fillers or fiber reinforcements. As a result, Momentive offers a diverse portfolio of various brands or grades of our silane coupling agents that may help improve: 

  • Resiliency of insulation batts
  • Wet strength retention
  • Thermal and electrical properties
  • Integrity, protection and handling of reinforcing fibers
  • Composite strength and toughness
  • Abrasion resistance
  • Rolling resistance, traction and wear

Processing characteristics of our advanced coupling agents may lead to higher efficiencies and lower costs in manufacturing. Improved shelf stability, greater rheology control, better filler dispersion, fewer mixing steps and faster cure - all are benefits to our coupling agent customers and can help to improve their bottom lines. Further, some of our coupling agents are especially environmentally advantageous, offering low VOC (volatile organic compound) emissions, virtually eliminating ethanol release during processing and when mineral-reinforced rubber products are used, or providing halogen-free flame retardancy (HFFR). 

Momentive's silane brand families, such as Silquest,* e-free* and NXT* silanes, offer our customers the potential to enhance end-product performance and/or lower overall costs by reducing the amount of agent required to achieve desired performance levels.

Momentive's coupling agents may serve effectively wherever superior bonds between inorganic substrates and organic polymers are desired, including:

  • Tires
  • Shoe soles
  • Wire and cable products
  • Belts and hoses
  • Grommets
  • Flooring
  • Fiber-reinforced composites and insulation
  • Filled polymer resin applications

 * Silquest, e-free and NXT are trademarks of Momentive Performance Materials Inc.

Please contact us for more details on products.
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