Objects are to provide a novel azole silane compound, a synthesis method thereof, and a silane coupling agent containing the azole silane compound as a component, and to provide a surface treatment solution using the azole silane compound, a surface treatment method, and a bonding method of two materials different in the quality of material. The azole silane compound of the present invention is a compound represented by the specific chemical formula (I-1) or (II-1).

The present disclosure relates to laminated armor materials for enhanced ballistic protection. In particular, the present disclosure relates to laminated armor materials comprising first and second armor materials and a laminated adhesive layer comprising nanomaterial fillers.

A bonding method using adhesive sheets respectively containing first and second thermoplastic resins. The volume content VA1 of the first thermoplastic resin in the adhesive sheet and the volume content VA2 of the second thermoplastic resin in the adhesive sheet are from 60 vol % to 100 vol %. Change rates Vx1 and Vx2 represented by formulae below are less than 80%. VB1 is the volume content of the first thermoplastic resin in a layer in direct contact with the first adhesive layer, and VB2 is the volume content of the second thermoplastic resin in a layer in direct contact with the second adhesive layer. The method includes applying a high-frequency wave to the adhesive sheets between adherends to bond them together,
Vx1={(VA1VB1)/VA1}100(Numerical Formula 1)
Vx2={(VA2-VB2)/VA2}100(Numerical Formula 2).