Results 1 to 10 of about 503 (112)

Flexible Polymer Planar Optical Waveguides [PDF]

open access: yesRadioengineering, 2014
We report about design, fabrication and properties of flexible polymer optical planar waveguides made of Epoxy Novolak Resin as planar waveguides deposited on various foil substrates.
V. Prajzler   +4 more
doaj   +2 more sources

Design of Polymer Wavelength Splitter 1310 nm/1550 nm Based on Multimode Interferences [PDF]

open access: yesRadioengineering, 2010
We report about design of 1x2 1310/1550 nm optical wavelength division multiplexer based on polymer waveguides. The polymer splitter was designed by using RSoft software based on beam propagation method.
V. Prajzler   +4 more
doaj   +2 more sources

Design and Modeling of Symmetric Three Branch Polymer Planar Optical Power Dividers [PDF]

open access: yesRadioengineering, 2013
Two types of polymer-based three-branch symmetric planar optical power dividers (splitters) were designed, multimode interference (MMI) splitter and triangular shape-spacing splitter.
V. Prajzler   +3 more
doaj   +2 more sources

A Review on Pineapple Leaves Fibre and Its Composites [PDF]

open access: yes, 2015
Natural fibre based composites are under intensive study due to their ecofriendly nature and peculiar properties.The advantage of natural fibres is their continuous supply, easy and safe handling, and biodegradable nature.
Abdan, Khalina   +6 more
core   +6 more sources

Revestimentos de alta camada obtidos com a modificação de resinas epóxi novolaca pela reação com organo-siloxano e catálise ácida

open access: yesQuímica Nova
Epoxy resins are an important class of thermostable polymers, widely used in structural applications or as adhesives. However, the low fracture resistance is their main weakness in many applications.
Roberta Jachura Rocha   +3 more
doaj   +1 more source

Large Core Three Branch Polymer Power Splitters [PDF]

open access: yes, 2015
We report about three branch large core polymer power splitters optimized for connecting standard plastic optical fibers. A new point of the design is insertion of a rectangle-shaped spacing between the input and the central part of the splitter, which ...
Mastera, R., Prajzler, V., Spirkova, J.
core   +2 more sources

Adhesive for polyester films cures at room temperature, has high initial tack [PDF]

open access: yes, 1966
Quick room-temperature-cure adhesive bonds polyester-insulated flat electrical cables to metal surfaces and various other substrates. The bond strength of the adhesive may be considerably increased by first applying a commercially available polyamide ...
Christian, C. M.   +2 more
core   +1 more source

Phosphorus-containing bisimide resins [PDF]

open access: yes, 1981
The production of fire-resistant resins particularly useful for making laminates with inorganic fibers such as graphite fibers is discussed. The resins are by (1) condensation of an ethylenically unsaturated cyclic anhydride with a bis(diaminophenyl ...
Fohlen, G. M.   +2 more
core   +1 more source

Synthesis and Thermal Properties of Curing Materials by Thermosetting Epoxy Resins with ε-Caprolactam [PDF]

open access: yes, 2017
ε-カプロラクタム(CL)と様々なタイプのエポキシ樹脂類、ビフェニル型(YX-4000、NC-3000)、ノボラック樹脂型(N500P-1、EPPN-502H)、グリシジルアミン型(EP630)との熱硬化反応を検討した。仕込み比、CL/エポキシ樹脂類 = 10/2~10/20の範囲で、ジアザビシクロウンデセン(DBU)存在下、80~170℃、2時間の範囲で加熱したところ、EPPN-502H以外のすべてのエポキシ樹脂類において、対応する架橋硬化物が定量的に得られた。さらに得られた硬化物のガラス転移温度 ...
Buya Kentaro   +3 more
core   +2 more sources

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