نتایج جستجو برای: elastomeric chain
تعداد نتایج: 297835 فیلتر نتایج به سال:
Within the past decade, researchers in the field of tissue engineering have recognized the need for newmaterials with soft and elastic properties. As a result, many groups have focused on the synthesis, characterization, and application of materials with a wide range of biodegradable and elastomeric properties.1 The combination of these polymers with Micro–Electro–Mechanical Systems (MEMS) tech...
Context: One of the most important aims in orthodontic treatment is to apply a light continuous force to achieve maximum effective tooth movement with minimal side effects (optimal tooth movement). It is obvious that elastomeric chains are the most popular method of space closure, but they undergo force decay during time. Force decay behavior of elastomeric chains is influenced by various facto...
Bi-layered scaffolds with a 0°/90° lay-down pattern were prepared by melt-extrusion additive manufacturing (AM) using a poly(ester urethane) (PU) synthesized from poly(ε-caprolactone) diol, 1,4-butandiisocyanate and l-lysine ethyl ester dihydrochloride chain extender. Rheological analysis and differential scanning calorimetry of the starting material showed that compression moulded PU films wer...
Elastomeric cellular structures provide a promising solution for energy absorption. Their flexible and resilient nature is particularly relevant to protection of human bodies. Herein we develop an elastomeric cellular structure filled with nanoporous material functionalized (NMF) liquid. Due to the nanoscale infiltration in NMF liquid and its interaction with cell walls, the cellular structure ...
We report a method for synthesizing various shaped colloidal microparticles using microfluidic devices with structured elastomeric membranes. These elastomeric membranes incorporated between two-layered channels have negative relief structures, and pneumatically actuated membrane leads to confinement of fluid inside structures. Using this microfluidic system, we demonstrate synthesis of various...
Schallamach’s theory of rate-dependent bond dissociation is used to understand the fracture of a polymerglass interface. The model system consists of an elastomeric film (20 μm thick) of poly(dimethylsiloxane), chemically bonded to a silanized glass substrate. The fracture energy of the interface varies logarithmically with velocity, which is consistent with Schallamach’s theory of forced bond ...
BACKGROUND Impression materials during impression procedure often get infected with various infectious diseases. Hence, disinfection of impression materials with various disinfectants is advised to protect the dental team. Disinfection can alter the dimensional accuracy of impression materials. The present study was aimed to evaluate the dimensional accuracy of elastomeric impression materials ...
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