Zirconium-based coupling agents

Zirconium based coupling agents and adhesion promoters... 

In this section, the use of zirconium-based coupling agents is reviewed and, where possible, their industrial applications are noted. 

Fundamental studies on zirconium-based coupling agents... 

Metal-Based Coupling Agents Example of Zirconium and Titanium... 

Capow [Kenrich], TM for a series of powdered forms of coupling agents based on titanium, zirconium, or aluminum. 

In recent years, lamellar nanofiUers have been established as the most important filler type for barrier and mechanical reinforcement. Dal Point et al. reported a novel nanocomposite series based on styrene-butadiene rubber (SBR latex) and alpha-zirconium phosphate (a-ZrP) lamellar nanofiUers. The use of surface modified nanofiUers improvement the mechanical properties. However, no modification of the gas barrier properties is observed. The addition of bis(triethoxysilylpropyl) tetrasulfide (TESPT) as coupUng agent in the system is discussed on the nanofiUer dispersion state and on the fiUer-matrix inteifacial bonding. Simultaneous use of modified nanofillers and TESPT coupling agent is found out with extraordinary reinforcing effects on both mechanical and gas barrier properties [123]. 

Coupling agents based on titanium and zirconium have been used to improve adhesive properties between polymers and filler-particles and to treat aluminium alloy for adhesive bonding [16]. Like the silanes, they react with surface hydroxyl groups as shown below, but there is no condensation polymerisation to produce a polymer network at the interface. 

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