稳定剂和防灰雾剂对溴碘化银T-颗粒乳剂微晶体电性能的影响  

Effect of Stabilizer and Antifoggant on the Electric Properties of Silver Bromide Iodide T-Grain Emulsion

作　　者：焦家俊[1] 侯钰暄[1] 王晗[1] 

机构地区：[1]华东理工大学化学与分子工程学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2007年第5期674-677,共4页Journal of East China University of Science and Technology

摘　　要：利用Wagner极化法研究稳定剂和防灰雾剂对溴碘化银T-颗粒乳剂微晶体的电子电导率和空穴电导率的影响。实验结果表明:将乙基巯基四氮唑、吗啡啉-4-甲酸硫代-(1-苯基四氮唑-5)酯、苯并三氮唑甲酸苯酯、2-甲基巯基-4-羟基-6-甲基-1,3,3a,7-四氮茚等4种稳定剂和防灰雾剂用在溴碘化银T-颗粒乳剂中,对乳剂电性能都有一定的影响。其中,乙基巯基四氮唑防灰雾剂的影响最为显著。研究表明:添加了稳定剂和防灰雾剂的溴碘化银T-颗粒乳剂微晶体的电性能与其防灰雾性能具有较好的相关性。当稳定剂和防灰雾剂使溴碘化银T-颗粒乳剂微晶体的电子电导率和空穴电导率增大时,乳剂的稳定性和防灰雾性能就增强。By applying Wagner polarization measurement, the effect of antifoggants on electron conductivity and hole conductivity of silver bromide iodide T-grain emulsions was studied. Results showed that, when used as doponts, four kinds of antifoggants, 1-ethyl-1H-tetrazole-5-thiol, morpholine-4-carbothioic acid S-（1-phenyl-1-tetrazole-5-yl） ester, 1H-benzotriazole-carboxylic acid phenyl ester and 2-（methylthio）-4-ol-6-methyl-[1,2,4] triazolo [1,5-a] pyrimidine all possessed a certain effect on the electric property of silver bromide iodide T-grain emulsion, with 1-ethyl-lH-tetrazole-5-thiol antifoggant indicating the strongest effect. There was a close relationship between the electric property of silver bromide iodide T-grain emulsion added with stabilizer and antifoggant and anti-fog property of the emulsion, i. e. , when the electron conductivity and hole conductivity of silver bromide iodide T-grain emulsions increased due to stabilizer and antifoggant, the stability and anti-fog property of the emulsions would be enhanced.

关 键 词：稳定剂 防灰雾剂 溴碘化银T-颗粒乳剂 电子电导率 空穴电导率 灰雾 

分 类 号：TQ57[化学工程—精细化工]