Two styles of climbing robot were developed for space applications. These robots, which used gecko-like dry adhesives for adhesion, have the potential to stick to nearly any surface in low pressure environments (unlike magnets, suction cups or pressure sensitive adhesives). TBCP (Timing Belt Climbing Platform), a 240 g robot, consisted of two modules and used belts of dry adhesive to adhere to ...

Geckos' outstanding abilities to adhere to various surfaces are widely credited to the large actual contact areas of the fibrillar and hierarchical structures on their feet. These special features regulate the essential structural compliance for every attachment and thus provide robust yet reversible adhesions. Inspired by gecko's feet and our commonly used double-faced tape, we have successful...

Adhesive and marine biofouling release properties of coatings containing surface-oriented perfluoroalkyl groups were investigated. These coatings were prepared by cross-linking a copolymer of 1H,1H,2H,2H-heptadecafluorodecyl acrylate and acrylic acid with a copolymer of poly(2-isopropenyl-2-oxazoline) and methyl methacrylate at different molar ratios. The relationships between contact angle, co...

Abstract In the paper, a pressure sensor and humidity are designed as supplementary components of textile integrated waveguide (TIW) based on an artificial magnetic conductor (AMC) consisting hexagonal elements. Thanks to AMC, sewing electrically conductive side walls can be eliminated. Since operating in stop-band TIW, sensors do not influence transmission parameters provide additional functio...

By mimicking muscle actuation to control cavity-pressure-induced adhesion of octopus suckers, smart adhesive pads are developed in which the thermoresponsive actuation of a hydrogel layer on elastomeric microcavity pads enables excellent switchable adhesion in response to a thermal stimulus (maximum adhesive strength: 94 kPa, adhesion switching ratio: ≈293 for temperature change between 22 and ...

PURPOSE To determine whether a simple method for applying fibrin tissue adhesive to a clear corneal cataract incision can create a watertight seal. SETTING Laboratory investigation. METHODS Clear corneal cataract incisions were simulated in 8 eye-bank eyes. In 4 eyes, fibrin adhesive was applied to the incision in a simple manner; the other 4 eyes were controls with no adhesive. Each eye wa...

Novel UV curable acrylic pressure-sensitive adhesives (PSAs) with exceptional flame retardancy and promising two-way shape memory effect have been developed using a commercial diethyl phosphoramidate as multifunctional tackifier for the first time. The abundant hydrogen bonds high viscosity of resultant networks contribute to low temperature repeatable adhesions. PSA 5 wt % exhibited best overa...

statement of the problem: monomer viscosity and solvent evaporation can be affected by the adhesive system temperature. higher temperature can elevate the vapor pressure in solution and penetration of adhesive in smear layer. bonding mechanism may be influenced by the adhesive temperature. purpose: this study aimed to evaluate the effect of pre-heating on shear bond strength of etch-and-rinse a...