水滑石-稀土-锌复合热稳定剂RZL1的研制

研究了水滑石-稀土-锌复合热稳定剂的制备，并比较了其热稳定效果。结果表明：水滑石-稀土-锌化合物有很好的协同效应，其复配的RZL1的最佳配比用量为：双月桂酸稀土40g，丙烯酸锌5．7g，十二烷基苯磺酸LDHs 8g。     

Synthesis and catalytic property of Cu-Mn-Ce／γ-Al2O3 complex oxide

A new type of catalytic material for purification of automobile exhaust, Cu-Mn-Ce-O/γ-Al2O3, has been studied. The factors affecting its catalytic activity, such as calcination temperature and the period of calcinations and so on have been investigated. Its catalytic activity after SO2-poisoning was determined in a hxed-bed reactor by exposing the sample to the atmosphere of 160 mL/min SO2/air. The study reveals that the catalyst has shown high catalytic activities for the conversion of NH3 oxidation by NO after sulfate. The conversion of NO reduction over the sulfated catalyst is somewhat higher than that over the fresh catalyst except that the optimum temperature has increased about 100℃. Also at the optimum process for the experiment, the selective catalytic oxidation of CO by NO is Over 76 % and the conversion of NO reduction is over 80 % by NH3.     

水滑石(HT)类热稳定剂的发展状况和应用前景

水滑石(HT)类热稳定剂是一种新型热稳定剂。介绍了水滑石(HT)类热稳定剂的结构、制备方法、作用机理和性质，并对其应用前景进行了讨论。     

基于多测量向量模型的极化探地雷达成像算法

针对极化探地雷达( GPR)工作过程中目标成像空间的联合稀疏性,提出了一种基于多测量向量模型的极化探地雷达成像算法。在建立极化探地雷达回波信号模型的基础上,利用各极化通道测量数据的联合稀疏性将各个极化通道的测量数据等效成多测量向量( MMV ),通过多任务贝叶斯压缩感知( MT-BCS)算法对各个极化通道的测量数据进行联合处理从而实现各个极化通道对应的探测场景反射率的重建。基于时域有限差分( FDTD)法的仿真数据处理结果表明所提成像算法在目标位置重建的准确性和背景杂波抑制能力上均优于单测量向量( SMV)模型的极化探地雷达成像算法。     

锌皂及其对PVC热稳定性的研究

通过制备马来酸锌、乙二胺四乙酸锌、乳酸锌、甘氨酸锌、邻氨基苯甲酸锌等一系列锌盐与硬酯酸镧复配,采用刚果红试纸法与热老化箱法进行检测。研究了不同锌皂与硬脂酸镧复配后的热稳定性优劣。结果发现所采用的热稳定剂体系中,以邻氨基苯甲酸锌的热稳定性效果最好。