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Silane coupling agents are a critical component of fiberglass-reinforced polymers. The glass is very hydro-philic and attracts water to the interface. Without silane treatment on the surface, the bond between the glass fiber and the resin would weaken and eventually fail. Silane coupling agents are used on fiberglass for general-pur-pose reinforced plastic applications, such as automotive, marine, sporting goods and building construction, as well as for high-performance applications in printed circuit boards and aerospace composites.
Some of the benefits imparted to fiberglass-reinforced plastics by silanes include:
Improved mechanical strength of the composites
Improved electrical properties
Improved resistance to moisture attack at the interface
Improved wet-out of the glass fiber
Improved fiber strand integrity, protection, and handling
Improved resistance to hot solder during fabrication
Improved performance in cycling tests from hot to cold extremes
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