铑盐对氯溴化银乳剂照相性能的影响  

Effect of NaRhCl_6 on the Photographic Performance for Silver Chloride-bromide Emulsions

作　　者：张慧丽[1] 翟秋红[1] 陈伟伟[1] 劳非 胡乃堃 

机构地区：[1]天津美迪亚影像材料有限公司,天津300220

出　　处：《影像技术》2011年第4期17-19,共3页Image Technology

摘　　要：采用计算机控制的双注技术制备氯溴化银乳剂,通过掺杂铑盐以改善卤化银乳剂的照相性能。本文主要研究了铑盐用量对高氯乳剂照相性能的影响,并利用扫描电镜和粒度分析表征来揭示其可能的影响机制。实验结果表明:铑盐的引入,使制备的氯溴化银乳剂具有更优的照相性能,其中反差的增大最为明显。但铑盐减感作用明显,其用量应在保持照相性能协调的前提下进行确定。Silver chloride-bromide emulsions used in this investigation were synthesized with a double jet precipitation technique controlled by a computer.NaRhCl 6 was introduced to promote the photographic performance of silver chloride-bromide emulsions.The influence of content for NaRhCl 6 was mainly investigated in this text.The obtained emulsions were characterized by scanning electron microscopy（SEM） and particle size analysis.It was found that NaRhCl 6 worked as a dopant to improve the photographic performance of silver chloride-bromide emulsions,especially for the contrasts.Because of its properties as a long-lived electron trap,the content of NaRhCl 6 should be determined at the premise of good photographic performance.

关 键 词：氯溴化银 铑盐 照相乳剂 

分 类 号：TQ575.2[化学工程—精细化工]