摘要
采用液相分散沉淀法制备了纳米2,4-二羟基苯甲酸-Pb()配合物粉体,并用TG,XRD,TEM,IR和元素分析对产物进行了表征.研究了反应条件对产物粒径和粒子形貌的影响.用DSC考察了产物对吸收药热分解的催化作用.结果表明,在水溶液中得到的产物为15nm×40nm的棒状粒子,而在乙醇溶液中得到的是粒径约为50nm的球形粒子.产物对吸收药热分解有显著的催化效果,使吸收药的分解峰温降低5.6℃,分解热增加918J/g.
The nanoparticle Pb(Ⅱ)-resorcylic acid complex were synthesized by liquid dispersion deposition method by using Pb(Ac)_2·2H_2O and resorcylic acid as the reactant, and characterized with TEM, XRD, TG, DSC, IR and element analysis. The effects of reactive condition on the particle size and the morphology of complexes were investigated. In addition, the catalytic activity of nanoparticle PbRes complex on the thermal decomposition of nitrocellulose-nitroglycerine(NC-NG) was also determined by DSC. The results show the spherical complex nanoparticles with a diameter of 50 nm were obtained in ethanol solution, and the stick-shaped complex nanoparticles with a diameter of 15 nm and length of 40 nm were obtained in H_2O. The peak temperature of the thermal decomposition of NC-NG decreases by 5.6 ℃, and the decomposition enthalpy ΔH increases by 918 J/g(about 41%), in the presence of nanoparticle PbRes complex.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第5期889-893,F007,共6页
Chemical Journal of Chinese Universities
基金
火炸药国防科技重点实验室基金(批准号:51455030303QT5101)资助.
