以热塑性聚氨酯(TPU)和聚氯乙烯(PVC)为主要原料,邻苯二甲酸二丁酯(DBP)、复合铅盐稳定剂、硬脂酸钙为助剂制备TPU/PVC热塑性弹性体,探讨共混比、DBP用量和填充剂用量对复合材料拉伸强度、断裂伸长率的影响,利用扫描电镜表征拉伸断面；结果表明,最佳实验配方为：TPU (S75) 80份、PVC 20份、纳米碳酸钙20份、DBP20份、复合铅盐稳定剂三盐3份、二盐3份、硬脂酸钙2份、钛酸酯
N-doped and oxygen-deficient TiO2 photocatalysts were fabricated by a two-step calcination method using dicyandiamide and commercial TiO2 as starting materials.Photocatalytic activity was tested by de
A new reduced molybdenum(V) phosphate (H3dien)2(H2dien)2H[NaMo12O24(OH)6(HPO4)6 (PO4)2]·nH2O (n =10.93, dien =diethylenetriamine) has been synthesized under hydrothermal conditions and characterized b
在热乙醇水溶液中,5一氨基萘磺酸(HAns)、邻菲哕啉(phen)和NaOH经回流反应合成了一种新的钠配合物[Na(H2O) (μ2-Ans) (Phen)]2,通过元素分析、红外光谱、紫外光谱和热重分析等进行了表征并采用X射线单晶衍射测定了配合物的分子结构.该配合物属单斜晶系,空间群P21/n,a=0.70346(13) nm,b=1.0959(2) nm,c=2.5854(5) nm, β=9
TiO2-pillared titanoniobate TiO2/HTiNbO5 as an efficient photocatalyst was prepared via an exfoliation-restacking route.The as-prepared nanohybrid is mesoporous with a high specific surface area of 17
A novel two-dimensional solid, [{Cu(en)2}4(H4w12O42)]·9H2O (en =ethylenediamine), has been prepared under mild hydrothermal conditions.Single crystal X-ray diffraction revealed that each paradodecatun
Exfoliated TaWO6 nanosheet was obtained by delaminating a layered compound HTaWO6 and assembled into multilayer films by a layer-by-layer deposition technology.The investigation on the photoelectrocat
本文研究以苯甲醛为原料,相转移催化合成安息香的最佳实验条件.考察了相转移催化剂种类、相转移催化剂的用量、催化剂VB1的用量,反应酸度,反应温度和反应时间对产率的影响.研究结果表明,和没有加入相转移催化剂相比,产率有所提高11.3％.最佳合成条件为：以十六烷基三甲基溴化铵为相转移催 化剂,用量为0.04g,催化剂VB1用量为0.9g,反应酸度(pH)为11-12,反应温度为70℃,反应时间为1h,产
Manganese-intercalated layered tantalotungstates have been assembled by tantalotungstatete nanosheets with manganese ions via an exfoliation-restacking route.The as-prepared nanohybrids are mesoporous
Layered nanocomposites were prepared utilizing the exfoliation and restacking properties of LixMoS2 under mild conditions and characterized by X-ray powder diffraction, differential scanning calorimet