NiTi wires were functionalized with silane coupling agents to improve interfacial adhesion between the inorganic constituent and a host matrix for composite applications. Surface derivatization was characterized by X-ray Photoelectron Spectroscopy, and mechanical pullout tests were performed to quantify the increase in adhesion between the NiTi shape memory alloy wires and polymer matrix. Impro...

Self-assembled monolayer (SAM) with tunable surface chemistry and smooth surface provides an approach to adhesion improvement and suppressing deleterious chemical interactions. Here, we demonstrate the SAM comprising of designed and synthesized 6-(3-triethoxysilylpropyl)amino-1,3,5-triazine-2,4-dithiol molecule, which can enhance interfacial adhesion to inhibit copper diffusion used in device m...

Transfer printing is an exceptionally sophisticated approach to assembly and micro-/ nanofabrication that relies on a soft, elastomeric ‘stamp’ to transfer solid, micro-/ nanoscale materials or device components from one substrate to another, in a large-scale, parallel fashion. The most critical control parameter in transfer printing is the strength of adhesion between the stamp and materials/d...

The adhesive plaques of Mytilus byssus are investigated increasingly to determine the molecular requirements for wet adhesion. Mfp-2 is the most abundant protein in the plaques, but little is known about its function. Analysis of Mfp-2 films using the surface forces apparatus detected no interaction between films or between a film and bare mica; however, addition of Ca(2+) and Fe(3+) induced si...

Bonding of hydrophobic plastic materials to wood to create new wood-plastic (polystyrene) materials with improved mechanical and physical properties that incorporate the desirable features of each constituent is difficult to achieve, This is due to poor interfacial adhesion between the wood and polystyrene components because of their inherent incompatibility. New, well-defined, tailored cellulo...

A model is proposed in which the interaction of a macromolecule (MM) with single-layer graphene (SLG) carried out by dangling interfacial molecular bonds. To estimate energy MM-SLG stitching, or adsorption (the index i numbers broken bonds), simple theoretical scheme, permitting to obtain analytical results, was used. The adhesion defined as sum terms E ads _iN , where N concentration i-type ob...

To improve the interfacial bonding of sisal fiber-reinforced polylactide biocomposites, polylactide (PLA) and sisal fibers (SF) were melt-blended to fabricate bio-based composites via in situ reactive interfacial compatibilization with addition of a commercial grade epoxy-functionalized oligomer Joncryl ADR@-4368 (ADR). The FTIR (Fourier Transform infrared spectroscopy) analysis and SEM (scanni...

Abstract When quickly detaching an elastomer from a counterface, viscoelasticity dramatically increases the perceived adhesion relative to its adiabatic or equilibrium value. Here, we report simulations on sticking contact between rigid cylinder and viscoelastic half space revealing maximum in work of separation at intermediate pull-off velocities. Maximum tensile forces yet increase monotonica...

Polyurea coatings on steel form tough, flexible and chemically resistant surfaces, making them ideal for a variety of applications. An important issue for polyurea coatings in some cases is their adhesion to steel under various loading conditions in aggressive environments. In this paper, adhesion was examined using steel/polyurea/steel sandwich specimens and interfacial fracture mechanics. The...

In nature, robust interfacial adhesion plays crucial roles in maintaining integration and functionality of various physiological structures including tendon and cartilage to bones and epidermis to dermis in mammalian skins. For instance, the bonding of tendon and cartilage to bone is extremely tough (e.g., interfacial toughness ~800 Jm 2 ), yet such tough interfaces have not been achieved betwe...