热稳定的

Some new heat stabilizers were exploited such as rare earth, organic antimony , autunite/zinc compounds, hydrotalcite and so on.

随着环保意识的逐渐加强，传统的PVC热稳定剂如铅盐类稳定剂已受到了一定的限制，相应地开发出了一系列新型的PVC热稳定剂，包括稀土类、有机锑类、钙锌复合类和水滑石类热稳定剂。

The effects of larium salt, cerium salt and praseodymium salt on thermal stability of PVC were studied, the synergistic effects of rare earth stabilizers with PDOP,β- diketone and ESO were also investigated by heat aging test, witheness test, conductivity test and TG analysis.

通过热老化测试、白度测试、电导率测试和热重分析，研究了镧、铈、镨盐对PVC热稳定性能的影响，同时考察了辅助热稳定剂亚磷酸酯、β-二酮和环氧大豆油与稀土类稳定剂的协同效应。

Heat stable articles and materials entering a clean area or clean/contained area should do so through a double-ended autoclave or oven.

热稳定的物品和原料在进入和一个洁净区或洁净/密封区时，要通过一个两侧开门的灭菌柜或灭菌炉。

For Permalloy/FeMn bilayers, the exchange field and coercivity decay exponentially in time with the application of an applied field antiparallel to the unidirectional anisotropy direction. The relative change of the exchange field, 1-H〓/H〓(t=0) also decays in an exponential manner with the FeMn layer thickness.

通过Py／FeMn双层膜结构研究了反铁磁层的厚度对交换耦合热稳定的影响，发现对于Py／FeMn双层膜，在外场方向与单向各向异性方向反平行时，交换偏置场和矫顽力随时间的变化呈指数衰减，耦合场和矫顽力的相对变化随FeMn层的厚度衰减。

How to design the ballasting resistors is key issue of the thermal stability.

本论文的研究目标为多指电晶体的热稳定压舱电阻设计，当在高功率操作时，元件因为热耦合效应的影响将会变的不稳定，压舱电阻通常会被用来避免多指电晶体发生热不定的情形，如何压舱电阻设计是元件热稳定的主要议题。

To enable the fabrication of a thermally stable ultralow dielectric constant film, specific precursor materials are used, such as, silane derivatives, for instance, diethoxymethylsilane and organic molecules, for instance, bicycloheptadiene and cyclopentene oxide.

为了制造热稳定的超低介电常数膜，使用特殊的前体材料，如硅烷衍生物例如二乙氧基甲基硅烷和有机分子例如双环庚二烯和环戊烯氧化物。

The commercial UNG and thermostable DNA polymerases are all expensive.

但是，无论UNG还是热稳定的DNA聚合酶，国外产品都十分昂贵。

It has been discovered that the carboxylic ester rare earth salt is equivalent to the organotin mercaptide stabilizer in thermal Processing stabilisation of PVC by the statically and dynamically thermal methods.

用静态热稳定和动态热稳定方法比较了羧酸酯稀土与有机硫醇锡对PVC加工热稳定作用，发现它们的稳定效果相当。

Compound lead salt stabilizer to further enhance the thermal stability in order to reduce the amount of resin in the unit: Organic tin heat stabilizer dibutyltin in greater toxicity, are not suitable for plastic heat stabilizer; Mercaptans by organotin anti - Cu-poor, it is not appropriate in the wire, cable products, but no contact for copper products is no problem; lead salt-type heat stabilizer in most industrial countries are being banned or restricted.

复合铅盐稳定剂应进一步提升热稳定性能，以减少在树脂中的单位用量：有机锡热稳定剂中的二丁基锡毒性较大，不适宜用作塑料热稳定剂；硫醇类有机锡因抗铜性差，不适宜在电线、电缆制品中使用，但用于不接触铜的制品是没有问题的；铅盐类热稳定剂在大多数工业发达国家正在被禁用或限用。

By esterification, saponification, doubledecomposition and formulation, liquid rare earth of monoisooctyl phthalate complex heat stabilizer was prepared with phthalic anhydride, isooctyl alcohol, sodium hydrate, rare earth chloride, mixed solvent and other reagents. The optimum conditions are: the temperature of esterfication is 130～140℃,and the reaction time is 1h. The temperature and time of saponification is 60℃ and 10min respectively. The temperature of double decomposition is 60～70℃,and the reaction ti...

摘 要：以邻苯二甲酸酐、异辛醇、氢氧化钠、氯化稀土、混合溶剂、助剂为原料，通过酯化反应、皂化反应、复分解反应以及复配制备了以邻苯二甲酸单异辛酯稀土为主要成分的液态稀土复合热稳定剂，其工艺条件为：酯化反应的温度控制在 130～ 14 0℃，反应时间为 1h ；皂化反应的温度为 6 0℃，反应时间为 5min ；复分解反应的温度在 6 0～ 70℃，反应时间为 1h ；水洗温度控制在 6 0～ 6 5℃；混合溶剂的用量为 5 0 %，稀土含量为 6 0 3%；在复配过程中，采用亚磷酸酯作为辅助热稳定剂，其用量为 5 %～ 7%，PVC中加入 2 %的这种稀土复合热稳定剂，在185℃下，其热稳定时间为 4 5min。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。