Cast epoxy composite material used as encapoulating material for sealing electronic element is introduced, especially the effect of red phosphorous flame retardant agent, gibbsite stuffing, coupling agent and firming agent on the properties of cast epoxy resin.
介绍了用于电子、电器元件灌封的铸塑环氧树脂组成物 ,重点讨论了环氧树脂组成物中的阻燃剂赤磷 ,填料三水合氧化铝 ,偶联剂 ,固化剂 ,对铸型环氧树脂性能的影响。
This paper analyzes grain size characteristics based on samples of flood plain substance composition collected systematically from Longmen Sanmenxia section of the Yellow River.
本文分析了河漫滩组成物质的粒度组成特征，并与河床质粒径级配与悬移质粒径级配进行了比较，研究了河漫滩宽度及物质组成对河槽几何形态的影响。
Diazonaphthaquinone systems had been used in presensitized plate for hundred years.
目前PS版在印刷领域仍占有较重要地位,重氮萘醌系感光组成物自20世纪应用以来,经久不衰。