苯亚磺酸钠在聚乙烯醇为粘合剂的光敏热成像材料中的化学增感  

Chemical Sensitization of Sodium Benzenesulfinate in Photothermographic Materials Using PVA as Binder

作　　者：曹静[1] 林海莉[1] 姚林辉[1] 史瑶[1] 夏培杰[1] 

机构地区：[1]中国科学院理化技术研究所

出　　处：《感光科学与光化学》2005年第4期247-252,共6页Photographic Science and Photochemistry

基　　金：国家自然科学青年基金资助项目(20303025).

摘　　要：以水溶性聚乙烯醇(PVA)为粘合剂,以异位法制备的颗粒尺寸为100nm的AgBr乳剂作光敏元,考察了苯亚磺酸钠(SBS)的用量、增感时间和增感温度对光敏热成像(PTG)材料照相性能的影响.实验结果表明:分别增感硬脂酸银(AgSt)、AgBr或者两者混合物,PTG材料均可取得明显的增感效果;灰雾随着苯亚磺酸钠用量增加而增加;增感温度以及增感时间不同,PTG材料的感光度不同.Effects of the amount of sodium benzenesulfinate (SBS), sensitization time and temperatures on photographic properties of PTG materials were studied, in which PVA and 100 nm ex-situ AgBr was respectively used as binder and light sensitive component. The results showed that sensitivity of PTG materials was effectively enhanced whereas fog increased with the amount of SBS when silver stearate (AgSt), AgBr or their mixture was respectively sensitized. In addition, different sensitivities could be achieved at different sensitization time and temperatures.

关 键 词：光敏热成像材料 卤化银 苯亚磺酸钠 化学增感 

分 类 号：TQ571[化学工程—精细化工]