soft segment

with the formation of hydrogen bonds in pu, both the glass transition temperature of soft segment phase and the thermal stability of hard segment phase increased, while the modulus, extent of orientation and residual orientation of pu decreased.

氢键的作用在于：提高了软段相的玻璃化温度，增强了硬段相的热稳定性，降低了橡胶态模量，取向度和残留取向。

the influence of soft segment molecular weight and hard segment content on the thermal properties, crystallization structures and water vapor permeability was investigated.

由此，系统讨论了软段分子量、硬度含量对聚氨酯热学性能、结晶结构及透湿性能的影响。

compositional heterogeneity of ethylene terephthalate-ethylene oxide segmented copolymer with long soft segment

长软链段对苯二甲酸乙二酯-环氧乙烷多嵌段共聚物的组成不均一性研究

Effects of hard segment type, soft segment type, soft segment length at various levels of reactive diluent have been studied in polyurethane acrylates.

研究了不同含量的活性稀释剂对聚氨酯丙烯酸脂的硬段类型、柔段类型、柔段长度的影响。

Otherwise, phase separation degree of WPU film from different soft segment content was discussed.

另外还研究了不同软段含量的聚氨酯材料在微相分离程度的差异。

The melting point of three block copolymers was measured with microscope as 232, 248 and 260 ℃, respectively. The intrinsic viscosity of the block copolymer with soft-and-hard segment ratio of 7/ 3 was measured as 1.12 dL/ g with a Ubbelohde viscometer.

利用显微熔点仪、乌式粘度计测定了共聚物的熔点和特性粘数，3种共聚物熔点分别为232248260℃，软／硬段比例为7／3的共聚物的特性粘数为1.12dL／g。

Analysis on Action and Reaction Force between Slab and Rollers at Segment of Dynamic Soft Reduction and Application in Casting

板坯连铸动态轻压下扇形段的受力分析和应用

waterborne polyurethane-urea prepared with dimer fatty acid based polyester polyol as soft segment

以二聚脂肪酸聚酯二元醇为软段合成水性聚氨酯-脲

According to some data of static load tests of pile in Sian region, load-transfer function of the upper and lower segment of soil surrounding the pile are defined as the bilinear soft model and hard model respectively.

通过对西安地区的许多工程试桩资料的整理、分析和研究，将摩擦型桩桩周土上部土层和下部土层的荷载传递函数分别简化为双折线硬化模型和软化模型。