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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.

Contact Us

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.

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Carbo NXT* Silane

Carbo NXT* silane is NXT* silane in powder form and can help provide tire enhancement and production efficiencies. Learn more.

4
e-free* 189 Silane

e-free* 189 silane is the latest advancement in silanes for mineral coupling with all-around excellence in performance and significant improvements in processing, allowing for reduced manufacturing costs. Learn more.

3
NXT* Silane

Providing options for enhanced tire performance and overall system cost efficiencies for tire manufacturers worldwide, NXT silane has a unique design that can enable reduced rolling resistance without ...

5
NXT* Z 45 Silane

NXT* Z 45 coupling agent may offer improved dynamic and physical properties in tire compounds, and virtual elimination of ethanol emissions. Learn more.

4
Silquest A-171* Silane

Silquest* A-171 silane results in Si-O-Si crosslink sites that are highly resistant to the effects of exposure to moisture, chemicals and UV rays. Learn more.

3
Silquest A-187* Silane

Silquest A-187* silane is a glycidal epoxy functional silane that may find use as an adhesion promoter in SPUR+* prepolymers, epoxy, polysulfide, silicone systems for caulks, coatings, adhesives and sealants. Learn more.

6
Silquest* A-1110 Silane

Silquest* A-1110 silane, a primary amino silane, is a candidate for use as an adhesion promoter in silane modified urethane (SPUR* prepolymer), filled silicone, epoxy and 2 part urethane adhesives and sealants. Learn more.

6
Silquest* A-1170 Silane

Momentive silanes include Silquest* A-1170, which can be added to polymers during system formulation or used independently as a primer. Learn about its uses.

4
Silquest* A-1524 Silane

Silquest* A-1524 silane can promote adhesion between a wide range of resins, substrates, fillers and reinforcements and is 100% active. Learn more.

3
Silquest* A-174NT Silane

Silquest A-174NT silane can help improve the adhesion and strength of materials that cure via a free radical mechanism. Learn more.

4
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* Silplusは、新日鉄住金化学株式会社の商標であり、許可を得て使用しています。

*The marks followed by an asterisk (*) are trademarks of Momentive Performance Materials Inc.