نتایج جستجو برای: polymeric glass
تعداد نتایج: 95182 فیلتر نتایج به سال:
Different kinds of additive and reactive flame retardants containing phosphorus are increasingly successful as halogen-free alternatives for various polymeric materials and applications. Phosphorus can act in the condensed phase by enhancing charring, yielding intumescence, or through inorganic glass formation; and in the gas phase through flame inhibition. Occurrence and efficiency depend, not...
الیاف شیشه، الیاف ظریف خمش پذیری از خانواده شیشه با اجزاء اصلی sio2-al2o3-cao-mgo و ناخالصی های قلیایی، اکسید های معدنی tio2,fe2o3 و افزودنی b2o3 و فلئور می باشد و در حالت مذاب بصورت رشته های نخی شکل، رشته رشته می شود.الیاف شیشه به دو گروه اصلی پشم شیشه و الیاف پیوسته تقسیم بندی می شود و الیاف شیشه نیز بر حسب شرایط مصرف به چندین نوع e-glass , a-glass, c-glass , r-glass , s-glass , ecr-glas...
A solid freeform fabrication technique, freeze extrusion fabrication (FEF), was investigated for the creation of three-dimensional bioactive glass (13-93) scaffolds with pre-designed porosity and pore architecture. An aqueous mixture of bioactive glass particles and polymeric additives with a paste-like consistency was extruded through a narrow nozzle, and deposited layer-by-layer in a cold env...
Glass-fiber-reinforced polymeric films for a stable Li-metal electrode: unraveling the key attributes of efficient protecting layers.
In this paper, methods of surface modification of different supports, i.e. glass and polymeric beads for enzyme immobilisation are described. The developed method of enzyme immobilisation is based on Schiff’s base formation between the amino groups on the enzyme surface and the aldehyde groups on the chemically modified surface of the supports. The surface of silicon modified by APTS and GOPS w...
This paper presents a novel microtechnology, glass micropallets, for the recovery of single adherent cells from mixed cellular populations. This work significantly advances the base technology, the micropallet array, which has been demonstrated for the analysis of adherent cell populations and isolation and selection of individual cells. We report a complete departure from the photolithographic...
Polymeric composites with carbon nanotubes have still not explored the potential expected from the excellent mechanical properties of the carbon nanotubes and their large aspect ratio. Dispersion of the nanotubes within the polymeric matrix is difficult. SWCNTs agglomerates in bundles and a good dispersion of carbon nanotubes within the polymeric matrix is crucial in order to receive the optima...
The nonlocal viscosity kernels of polymer melts have been determined by means of equilibrium molecular dynamics upon cooling toward the glass transition. Previous results for the temperature dependence of the self-diffusion coefficient and the value of the glass transition temperature are confirmed. We find that it is essential to include the attractive part of the interatomic potential in orde...
2 Fabrication of microarray devices using traditional glass slides is not easily 3 adaptable to integration into microfluidic systems. There is thus a need for the 4 development of polymeric materials showing a high hybridization signal to 5 background ratio enabling sensitive detection of microbial pathogens. We have 6 developed such plastic supports suitable for highly sensitive DNA microarra...
in the present research work, the flexural modulus and strength of glass fiber-epoxy resin and carbon fiber-epoxy resin composites have been enhanced through fiber tension during curing of the polymeric resin. this study showed that the tension applied on the fibers increased the flexural modulus of the glass-epoxy composites up to 12% and the flexural strength up to 19%. the flexural modulus a...
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