Methods for chemical analysis of high - titanium slag and rutile - the diphenylcarbazide photometric method for the determination of chromium sesquioxide content 高钛渣,金红石化学分析方法二苯基碳酰二肼光度法测定三氧化二铬量
Chemical analysis methods and determination of physical performance of alumina determination of chromium sesquioxide content - diphenyl carbazide photometric method 氧化铝化学分析方法和物理性能测定方法二苯基碳酰二肼光度法测定三氧化二铬含量
Bromochemical producer in china . most products are brominated hydrocarbons , but they also include acetyl and propionyl bromide , and phosphorus tribromide -主要以生产苯基丙酮1 , 4 -二溴丁烷4 -丁氧基苯酚1 . 3 -二苯基丙酮等为主的医药中间体产品和杀菌灵。
Workplace air - determination of hexavalent chromium in airborne particulate matter - method by ion chromatography and spectrophotometric measurement using diphenyl carbazide 工作场所空气.气载颗粒物质中六价铬的测定.用二苯基卡巴胼的离子色谱法和光谱测定法
An excellent adhesive was prepared from bismaleimide ( bmi ) , epoxy resin ( e - 51 and tde - 85 ) , 4 , 4 ' - diaminodiphenyl sulfone ( dds ) in this thesis . the influence of liquid rubber and polymer ether imide ( pei ) on the properties ( especially high - temperature strength and the peeling strength ) were discussed , their different toughening characteristics and mechanisms were discussed . last , the process and effection of heat - resisted structural adhesive were studied by adhesive experiment of synchronizer in automobile . the results of investigation made clear : the adhesive , has good properties , especially heat - resisted properity 根据材料分子设计的原理,研究了二苯甲烷双马来酰亚胺( bmi ) 4 , 4 ’ ?二胺基二苯基砜( dds ) e ? 51 tde ? 85组成的环氧胶粘剂体系,研究该体系在作为高温结构胶粘剂使用时的粘接性能;然后研究了用无规羧基液体丁腈橡胶( ctbn ? x )和聚醚酰亚胺( pei )分别来增韧该体系的增韧效果;最后通过碳纤维耐磨材料与同步器圆锥环的粘接实验,研究了耐高温结构胶粘剂的粘接工艺和使用效果。