Regular surface roughness could be created on the of a pressure-sensitive adhesive (PSA) film through Marangoni flow during drying process. Therefore, tailoring both and bulk characteristics PSA consequently its adhesion strength expected by controlling conditions. Herein, properties water-based dried at various temperatures humidities were scrutinized. Increase in temperature improved to poly(...

abstract statement of problem: there is no enough published data about the shear bond strength of resin modified glass ionomer adhesives on caries-affected primary tooth dentin excavated using minimally invasive systems. objectives: to evaluate the shear bond strength of 2 different adhesives (one resin modified glass ionomer and one resin) using two caries removal techniques on healthy and car...

one of the most important factors that affect tire friction is surface roughness, which determines the size of the real contact area, real pressure distribution on the contact interface, and scales of mechanical engagement between viscoelastic rubber and a rough substrate. the need to predict coefficient of friction (cof) for rubber on rough surfaces for applications such as traction of tires o...

This paper studies an adhesive contact model which also takes into account the damage and long memory term. The deformable body is composed of a viscoelastic material process taken as quasistatic. caused by compression or tension involved in constitutive law function modelled through nonlinear parabolic inclusion. Meanwhile, adhesion bonding field on surface while d...

Advanced drilling technology makes it possible to penetrate oil and gas sites with deep bedding of reservoir, a complex multi-layer structure high reservoir temperature at the well bottom, reaching 150°C. The difficult geology strata leads fact that productive layers are flooded unevenly. In this work causes for water cut in reservoirs given, repair insulation technologies isolation water-beari...

In fully transient, mussel-inspired hydrogels, metal-coordinate complexes form supramolecular crosslinks, which offer tunable viscoelastic properties and mechanical reversibility. The metal-coordination complexation that comprises the crosslinks can take on tris-, bis-, mono-, free-state modalities (3, 2, 1, or 0 ligands per ion, respectively). Although prior work has established relationships ...

Abstract When a crack propagates in viscoelastic solid, energy dissipation can occur very far from the tip where stress field may be different $$r^{-1/2}$$ r - 1 / 2 singular form expected close t...

To prevent texture defects in powder-based processes, the sintering time needs to be adjusted such that a certain amount of coalescence is achieved. However, predicting required extremely challenging assess materials as polymers because kinetics exhibit both elastic and viscous characteristics when undergoing deformation. The present work introduces computational approach model viscoelastic effe...

This study is concerned to check the validity and applicability of a five parameter viscoelastic model for harmonic wave propagating in the non-homogeneous viscoelastic rods of varying density. The constitutive relation for five parameter model is first developed and validity of these relations is checked. The non-homogeneous viscoelastic rods are assumed to be initially unstressed and at rest....