The process of enumerating the development of special epoxy resins and hardeners as examples, epoxy-cured resins with low dielectric constant is described in the chapter. Many excellent characteristics of epoxy resin originate from hydroxyl groups generated on curing. To lower the dielectric constant,...
Epoxy resin, epoxy resin constituent and its hardened material PROBLEM TO BE SOLVED: To provide a cured product of resin having excellent moisture resistance and low dielectric constant and dielectric loss tangent and extremely useful when using for insulating materials for electric and electronic p.....
Dielectric constant/1.2MHz,25°CGB/T 1693-2007 3-5 Loss factor/1MHz, 25°CGB/T 1693-2007 0-1 Thermal shock test (500 cycles)---40~150ºC Operating temperature°C-50-150 Shelf lifeComponent A12 month Component B9month Resistant to the following media: water, acid,...
一种低介电常数环氧树脂组合物的制备方法 A method for preparing a low dielectric constant epoxy resin composition一种低介电常数环氧树脂组合物的制备方法,先准备原料:环氧树脂70--100份,固化剂1-10份,溶剂50—70份,再溶解,将环氧树脂用溶剂在室温下搅拌溶解1-2小时得到环氧树脂溶液,将固化剂用2—20份丁酮...
Resin epoxy Properties Melting point 115-120 °C Density 1.36 g/mL at 25 °C(lit.) Tg -22 Flash point 252 °C form slab/chunk Viscosity 70(Mooney viscosity) Dielectric constant 2.5(Ambient) EWG's Food Scores 1 EPA Substance Registry System Oxirane, (chloromethyl)-, ...
Thermal and dielectric properties of epoxy resin filled with double-layer surface-modified boron nitride nanosheets Owing to the rapid development of advanced power system and modern micro-electronic devices, exploiting composites with excellent thermal conductivity and ... J Li,S Li - 《Materials Chem...
Epoxy/BaTiO3 composite embedded capacitor films(ECFs) were newly designed for high dielectric constant andlow-tolerance (less than 5%) embedded capacitor fabricationfor organic substrates. In terms of material formulation, ECFsare composed of a specially formulated epoxy resin and latentcuring agent, an...
This method is attractive because of its technological applications such as those in electromagnetic shields, since it allows to determine the dielectric constant of heterogeneous mediums and show or display the electric field into the material in order to understand the interfacial behaviours. The ...
epOXyresin ; dielectricbreakdOWn ; inceptiOnvOltage ; magneticfieldenvirOnment ; lOWpressure 0 引 言 环氧树脂绝缘材料作为印刷电路板的基板被 广泛应用于各种电气电子设备 随着现代化电气电 子工业的发展使用环境也趋向于多样化除常规环 境外还使用于高海拔低气压和强磁场等非常规环 境中 1 有文献证明使用在非...