Study on the Synthesis and Thermal Behavior of AgSt/AgBr Composite

doi:10.7517/j.issn.1674-0475.2008.04.265

Abstract

Abstract: AgSt/AgBr composite was synthesized by in situ method,which NaBr and silver stearate(AgSt) was respectively used as bromide source and substrate.The structure,size,morphology and crystal form of AgSt/AgBr composite was respectively measured by FTIR,SEM,XRD,as well as the thermal behavior investigated by TG-DSC.The results showed:(1) that AgSt/AgBr composite was composed of substrate AgSt and epitaxial cubic AgBr particles with sizes ranging from 30 to 50 nm;(2) that two new phase transition peaks appeared at 97.8 ℃ and 108.8 ℃ respectively for AgSt/AgBr composite;(3) the start decomposition temperature of AgSt/AgBr composite decreased a little than that of AgSt.

Key words: silver stearate, silver bromide, composite, phase transition, photothermographic materials

CLC Number:

TQ57

CAO Jing, LIN Hai-li, LIU Chun-ping, WANG Jun-en, SHAO Xin. Study on the Synthesis and Thermal Behavior of AgSt/AgBr Composite[J]. Imaging Science and Photochemistry, 2008, 26(4): 265-270.

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