Silane coupling agents are key components of glass fiber reinforced polymers. Glass is extremely hydrophilic, attracting moisture to the interface. If the surface is not silane treated, the bond between the glass fibers and the resin will weaken, eventually leading to breakage. Silane coupling agents are used in glass fibers for general-purpose reinforced plastics such as automotive, marine, sports equipment, and construction, as well as high-performance applications such as printed circuit boards and aerospace composites.

General-purpose glass fibers and some electronic-grade glass fibers are treated with dilute water treatment baths containing complex ingredients (organic film formers, lubricants, antistatic agents, and silane coupling agents). The silane must achieve a solubility of 0.2-1% in the water bath.

Typically, if the pH of the water bath is acidified to 4 with acid, the hydrophobic silane will also dissolve in a small amount in the water bath, providing the stability needed to handle glass fibers.

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With ECOPOWER's silanes, glass fiber reinforced plastics benefit from:

» Improve the mechanical strength of composites

» Electrical performance improvements

» Improved interface moisture resistance

» Improve the wettability of glass fibers

» Improved fiber bundles, protection and handling

» Improves heat-resistant welding performance when braiding

» Improve cycle test performance from hot to cold