介绍了聚氨酯弹性体微相分离的影响因素、研究手段和表征方法。
The influence factors, studying means, and characteristic methods of the polyurethane elastomers were elucidated.
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。
Otherwise, phase separation degree of WPU film from different soft segment content was discussed.
实验证明,气泡主要是由于有机溶剂中微量水的微相分离造成的。
It is verified that ph ase separation of trace amount of water in the organic solvent is the most possible course of vacuole formation.
实验结果表明:聚醚型水性聚氨酯的微相分离程度高于聚酯型水性聚氨酯。
The results indicated that the microphase separation degree of polyether-type waterborne polyurethanes was higher than that of polyester-type waterborne polyurethanes.
结果表明:炭黑能加速聚氨酯泡沫的微相分离,明显地降低泡沫的力学性能;
The results indicate that CB has a positive effect on microphase separation, but a negative effect on the mechanical properties of PU;
研究认为热处理提高了TPU的微相分离程度,完善了TPU中的软硬段结构。
It's caused by the micro phase separation degree of TPU is increased as well as the soft hard segment structure is perfected.
多交联体系材料微区结构上交联密度差异程度不同影响材料的微相分离和耐热性能。
The thermal properties of multi-crosslink PU were much dependent on the differences between crosslink densities of micro-domains.
聚氨酯的微相分离是一个松弛过程,不仅与热力学因素有关,而且也受动力学过程的影响。
Microphase separation of polyurethane is a relaxation process, affected by not only thermodynamics factors but also kinetics process.
聚醚酯弹性体是一类重要的热塑性弹性体,研究它的微相分离对提高其性能有重要的意义。
Poly(ether-ester) elastomers are a type of important thermoplastic elastomers, the study of microphase separation is very important to the promotion of their properties.
用动态密度泛函理论研究了嵌段序列对线型ABC三嵌段高分子微相分离动力学机理的影响。
The sequence effect on ordering mechanism of linear ABC triblock copolymers has been investigated by using dynamic density functional theory.
而采用在溶剂相中改性接枝再乳化分散的方式,分子链中软硬段的微相分离加剧,热稳定性提高。
When modification graft before emulsion dispersion in solvent was adopted, micro phase separation of soft and hard segments in molecular chains was enhanced greatly and its thermo-stability improved .
用一步法在密炼机中合成了热塑性聚氨酯(TPU)。在原子力显微镜(AFM)下观察其微相分离情况。
The thermoplastic polyurethane (TPU) is prepared with mixer by one-step, and it's micro-phase separation is studied by atomic force microscope (AFM).
在此基础上,采用乳化溶剂挥发法和液致相分离相结合制备了聚乳酸多孔微球。
Moreover, PLA porous microspheres were fabricated by solution induced phase separation based on emulsion-solvent evaporation.
在此基础上,采用乳化溶剂挥发法和液致相分离相结合制备了聚乳酸多孔微球。
Moreover, PLA porous microspheres were fabricated by solution induced phase separation based on emulsion-solvent evaporation.
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