Preparation,Characterization of Novel Silver 2-Mercaptobenzimidazole/Silver Stearate(AgMBM/AgSt) and Its Imaging Property in PTG Materials

doi:10.7517/j.issn.1674-0475.2009.03.168

Abstract

Abstract: A novel composite grain silver 2-mercaptobenzimidazole/silver stearate(AgMBM/AgSt) was synthesized by using silver stearate(AgSt) as substrate and 2-mercaptobenzimidazole(MBM) as modifier.The microstructure,morphology,crystal form and thermal behavior of AgMBM/AgSt were respectively measured by FTIR,TEM,XRD and TG-DSC.The imaging property of AgMBM/AgSt in photothermographic materials was also investigated.The results showed that AgMBM/AgSt was composed of substrate AgSt with surface supported AgMBM particles.Compared to AgSt,new thermal transition peak was appeared near 80 ℃ as well as low thermal decomposition temperature was achieved for AgMBM/AgSt.When AgMBM/AgSt was applied as silver source in photothermographic materials,the thermal development density of image increased significantly but fog was still kept low.

Key words: silver stearate, silver 2-mercaptobenzimidazole, composite grains, PTG materials

CLC Number:

TQ57

LIN Hai-li, CAO Jing. Preparation,Characterization of Novel Silver 2-Mercaptobenzimidazole/Silver Stearate(AgMBM/AgSt) and Its Imaging Property in PTG Materials[J]. Imaging Science and Photochemistry, 2009, 27(3): 168-174.

References

[1] Diamond AS,Weiss D S.Handbook ofImaging Materials[M].New York:Marcel Dekker,2003.473-476.
[2] Whitcomb D R.基于羧酸银的光敏热成像技术进展[J].感光科学与光化学(影像科学与光化学),2003,21(1):1-19.Whitcomb D R.Advances in photothermographic i maging technology based on silver carboxylates[J].PhotographicScience and Photochemistry(Imaging Science and Photochemistry),2003,21(1):1-19.
[3] 曹静,林海莉,姚林辉,等.苯并三氮唑在聚乙烯醇为粘合剂的光敏热成像材料中的化学增感[J].感光科学与光化学(影像科学与光化学),2005,23(5):351-356.Cao J,Lin HL,Yao L H,et al.Chemical sensitization of benzotriazolein photothermographic materials using PVAas binder[J].Photographic Science and Photochemistry(Imaging Science and Photochemistry),2005,23(5):351-356.
[4] 林海莉,曹静,夏培杰,等.三苯基磷对PTG材料照相性能的影响[J].感光科学与光化学(影像科学与光化学),2007,25(6):459-467.Lin HL,Cao J,Xia PJ,et al.Effect of Ph3Pon photographic property of PTG materials[J].Photographic Scienceand Photochemistry(Imaging Science and Photochemistry),2007,25(6):459-467.
[5] 曹静,林海莉,姚林辉,等.AgBr的尺寸及含量对PVA为粘合剂的光敏热成像材料的光敏性的影响[J].感光科学与光化学(影像科学与光化学),2005,23(1):6-13.Cao J,Lin HL,Yao L H,et al.Effects of grainsize andcontent of AgBr onsensitivity of PTG materials using PVAas a hydrophilic binder[J].Photographic Science and Photochemistry(Imaging Science and Photochemistry),2005,23(1):6-13.
[6] 曹静,林海莉,姚林辉,等.传统化学增感对PVA为粘合剂的光敏热成像材料的光敏性的影响[J].感光科学与光化学(影像科学与光化学),2005,23(2):108-113.Cao J,Lin HL,Yao L H,et al.Effects of conventional chemical sensitizations on sensitivity of PTG materials usingPVAas a hydrophilic binder[J].Photographic Science and Photochemistry(Imaging Science and Photochemistry),2005,23(2):108-113.
[7] Lee S J,Han S W,Choi HJ,et al.Structure and thermal behavior of a layered silver carboxylate[J].J.Phys.Chem.B,2002,106(11):2892-2900.
[8] Ikeda M.Thermodynamic and NMRstudies on silver salts of fatty acids[J].Photogr.Sci.Eng.,1980,24(6):277-280.
[9] Chadha M,Dunnigan ME,Sahyun MR V,et al.Electronic structure of layered silver carboxylates[J].J.Appl.Phys.,1998,84(2):887-892.
[10] Bokhonov B B,Sidelnikov A A,Sharafutdinov MR,et al.Thermal and mechanochemical initiated phase transfor-mations in silver carboxylates[J].J.Imag.Sci.Technol.,2003,47(2):89-99.
[11] Hill S E,Mizenk MB,Sahyun MR V.Mechanisms of development of photothermographic media[J].J.Imag.Sci.Technol.,1996,40(6):568-575.
[12] Whitcomb D R,Rajeswaran M.Coordination chemistry of photothermographic i maging materials:Ⅲ[J].J.Imag.Sci.Technol.,2003,47(2):23-30.