查询词典 elastomers

The studies segmented polyester polyurethaneurea elastomers based on 4,4'-diphenylmethane diisocyanate, ethylene diamine and polybutylene adipate (M. W. 1975 and M. W. 1228) were studied by means of IR spectrascopy.

用红外光谱法对基於4，4'-二苯基甲烷二异氰酸酯、乙二胺和聚己二酸丁二醇酯（分子量分别为1975和1228）的嵌段聚脲氨酯弹性体进行了研究。

A series of thermoplastic polyurethane elastomers with different fraction of hard segments based on poly (ethylene-propylene adipate)/ethylene oxide/tetrahydrofurancopolyether as soft segments were synthesized.

合成了以PET/PEPA为软段的不同硬段含量的热塑性聚氨酯弹性体，利用凝胶渗透色谱、傅立叶变换红外对其进行了表征，并测试了其力学性能。

The forms of elastomers of axial symmetry problem are generally divided into two kinds: cylinder or half space body.

轴对称问题的弹性体的形状一般为圆柱体或半空间体。

All rubber elastomers shall be of chloramine resistant material.

所有弹性合成橡胶应该是耐氯胺腐蚀材料。

It is important to investigate the morphology of the block copolymers under congeries for us to understand the relationship between the structure and properties of this kind of thermoplastic elastomers.

研究这种嵌段共聚物在聚集态下的形貌对于认识这类热塑性弹性体的结构与性质关系具有十分重要的意义。

Durometer hardenss tester an instrument used to characterize the hardenss of elastomers or other rubber-like materials.

硬度计—用来测定弹性体或其它橡胶物质的特性的工具。

Exxpro specialty elastomers are brominated polymer s derived from a co polymer of isobutylene and paramethylstyrene.

Exxpro特种弹性体是一种溴化聚合物，由异丁烯和对甲基苯乙烯共聚物制得。

The results showed that isocyanurate modified polyurethane elastomers exhibited better thermal propterty than that of general polyurethane elastomers.

结果显示，与普通聚氨酯弹性体相比，用异氰酸酯改性后的聚氨酯弹性体的热稳定性明显得到了提高。

It also includes compatibility tables for each of the materials and compares the corrosion resistance of selected elastomers.

此外包括兼容性桌子为材料中的每个并且比较选择的elastomers的耐腐蚀性。

The molecular motion of amorphous region at high-frequency was found to be hardly affected during the stretching processes. In summary, elongation has created major but different influences on the morphology and molecular motion of the aforementioned four series of polymeric elastomers. For those elastomers like natural rubber and poly , elongation has induced crystallization of the noncrystalline or the soft segments. The crytallinitiy and the crystal thicknesses increase monotonously during the course of the stretching; On the other hand, the stretching processes for those semicrytalline copolymers like EMA and POE are rather complex, including the formation of crystal at relatively low λand the destruction of the crystal at the utmost λ. It revealed that stretching process has resulted in a decreasing of the thicknesses and a shortening of 〓C T〓s for the orthorhombic crystalline components.

拉伸对上述四个弹性体体系的聚集态结构都产生了很大影响，但是影响的程度和内容因体系而不同，对于本身存在着化学交联或者是物理交联的体系而言，拉伸导致了其中本来难以结晶组分的结晶，且结晶度随着拉伸比增加而增加，与此同时，体系结晶的晶片厚度也会逐渐增加；而对于结晶性共聚物体系，如EMA和POE，结晶区本来起到了物理交联的作用，在这种情况下拉伸的影响变得比较复杂，拉伸对于不同晶型的影响有所不同，在拉伸比较低的情况下体系总体的结晶度会有所增加，说明有新的结晶产生，当接近或达到断裂伸长比时，体系的结晶度会突然降低，含量占优的结晶会被拉伸所破坏，含量较低的结晶在整个拉伸过程中受的影响较小。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。