水滑石

TG-DSC results revealed that the decomposition of magnetic CoAl HTLcs proceeded in two stages. The first large endothermic effect below 220℃involves the loss of physically absorbed and interlayer water and the second endothermal effect, between 220℃and 402℃, corresponds to the decomposition of the hydroxide layers and the removal of anions in the brucite-like layers. The S_ and pore diameter information of magnetic CoAl HTLcs were tested by N_2 adsorption-desorption analysis.

TG-DSC结果表明磁性CoAl水滑石有两个过程，在220℃以下的第一个失重过程是由于物理吸附水的移除造成的，在220℃至402℃之间的主要失重过程是由于材料脱除结构水，碳酸根离子和部分羟基造成，并伴随着层板结构的塌陷。N_2 adsorption-desorption测试分析了磁性钴铝水滑石的比表面积、孔径等信息。

Hydrotalcite and hydrotalcite-like materials have good heat stability and large specific surface area, and can be used as catalysts and catalyst carriers.

水滑石及类水滑石材料具有很好的热稳定性和较大的比表面积，可以作为催化剂或催化剂载体。

A series of Zn Al hydrotalcite like compounds was synthesized by co precipitation method.

用非均相共沉淀法合成了系列Zn Al类水滑石样品，研究发现Al/摩尔比在 0 3 1～ 0 5 2范围内可得到纯类水滑石相。

Layered double hydroxides pillaring with organic anion s CoAl-LDH are directly synthesized by a homogeneous precipitation method using the urea as a precipitiant,and the LDH products have been characterized through XRD,FT-IR,TGA and TEM.

以尿素为沉淀剂用均匀沉淀法直接合成有机阴离子柱撑水滑石(LayeredDoubleHydroxides，LDH)及CoAl水滑石等，并用XRD，FT-IR，TGA，TEM等分析手段对所合成的水滑石进行了表征。

XRD indicated that the replacement of the terephthalate anion by the polytungstate anion had little effect on the structure.

结果表明，经过同多钨酸根阴离子的交换以后，垂直于水滑石层板方向的平行层板方向的晶格参数值变小，平行层板方向的晶格参数值不变，(003)、(006)、(009)衍射峰处的层间距值比为3：2：1；交换过程没有改变水滑石的结构，水滑石原位生长在γ-Al2O3表面及内孔，比表面积由γ-Al2O3载体的219m2/g增加到247m2/g，孔径分布则由原来的2～11nm变化为3～4nm。

XRD indicated that the replacement of the terephthalate anion by the polytungstate anion had little effect on the structure.

结果表明，经过同多钨酸根阴离子的交换以后，垂直于水滑石层板方向的平行层板方向的晶格参数值变小，平行层板方向的晶格参数值不变，(003)、(006)、(009)衍射峰处的层间距值比为3：2：1；交换过程没有改变水滑石的结构，水滑石原位生长在γ-Al2O3表面及内孔，比表面积由γ-Al2O3载体的219平方公尺/g增加到247平方公尺/g，孔径分布则由原来的2~11nm变化为3~4nm。

A terephthalate anion-pillared Ni-Al hydrotalcite-like layered double hydroxide was synthesized on the surface and within the pores of γ-Al 2O 3 by in situ crystallization and a polytungstate anion-pillared hydrotalcite was subsequently obtained by ion-exchange.

采用原位沉积法在γ-Al2O3表面原位合成了对苯二甲酸阴离子柱撑的镍铝水滑石，并用同多钨酸根阴离子部分交换了镍铝水滑石中的对苯二甲酸阴离子。

L-aspartic acid s are intercalated into magnesium aluminum layered double hydroxidesby using the methods of reprecipitation and coprecipitation.

以镁铝水滑石为插层主体、L-天冬酸离子为插层客体，分别用返混沉淀法和共沉淀法制备了 L-天冬酸根插层镁铝水滑石手性层柱材料，并用 FT-IR、XRD 和 DTA 对其结构进行了表征。

The structure、action principle and modification's key technology of water talc was summarized in this paper, it make a comparison of heat stability and cooperation stability of modify talc、stearic acid Calcium、stearic acid Zinc、stearic acid barium and tribasic salt in the PVC system.

介绍了改性水滑石的结构、作用机理及改性的关键技术，并比较了改性水滑石、硬脂酸钙、硬脂酸锌、硬脂酸钡、三盐在PVC体系中的热稳定性能以及协同稳定性能。

The structure、action principle and modification's key technology of water talc was summarized in this paper, it make a comparison of heat stability and cooperation stability of modify talc、stearic acid Calcium、stearic acid Zinc、stearic acid barium and tribasic salt in the PVC system.

改性水滑石；钙锌稳定剂；应用；环保介绍了改性水滑石的结构、作用机理及改性的关键技术，并比较了改性水滑石、硬脂酸钙、硬脂酸锌、硬脂酸钡、三盐在PVC体系中的热稳定性能以及协同稳定性能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。