Abstract : crystallinity and mechanical properties of poly ( ester - ether ) liquid crystalline elastomer and their fibers were investigated by waxdand single fiber electronic tensile strength tester 文摘:利用广角x射线衍射仪和单纤维电子强力仪对聚酯醚液晶弹性体及其纤维的结晶性和力学性能进行了研究。
The properties of calorifics , crystallinity , mechanism and shape memory were studied and the effect of structures on propt es were studied through the relationship between them 在材料筛选工作的基础上,合成了具有形状记忆功能的线型聚氨酯弹性体。研究了它的热学性能、结晶性能、形状记忆性能、机械性能。
The results indicate that : ( 1 ) as the drawing ratio increase , the mechanical properties , crystallinity and orientation of uhmwpe fiber all increase greatly , while the average crystal size decreases 结果表明:随拉伸的进行, uhm筋胭e纤维的力学性能、结晶度、取向度均大大提高,而晶粒尺寸逐渐变小。
Ceramic substances have a number of special properties such as hardness , abrasion resistance , heat resistance , refractory qualities , electro - magnetic adaptability , chemical stability , crystallinity and porosity 陶瓷的特别属性包括:坚硬,抗磨损,耐热,耐融性,电磁适应性,化学稳定性,结晶度及孔积率等。
While polyester fiber is subject to different draw ratio and heating temperature during high speed spin - fling , its original molecular orientation and crystallinity of polyester fiber are changed 摘要聚酯在高速纺丝过程中,施以不同的拉伸倍数与温度,会造成纤维结晶度与取向度的变化,从而影响纤维的物理性能。
With increasing blow up ratio , both the axial orientation and the crystallinity of tubular films increase . with increasing draw down ratio , only the axial orientation increases while the crystallinity does not change significantly 管膜的结晶度随吹胀比的增加而增大,当拉伸比增加时结晶度没有明显变化。
With the temperature increasing , the grains of the lanio3 samples grew large steadily and the crystallinity became better . it can be seen that the lattice were prolonged along the a axle while shrinked along the c axle 随着烧结温度的升高, lanio _ 3样品的晶粒尺寸变大,结晶完善,晶格在a轴方向上伸长,在c轴方向上收缩。
The result showed that with increasing of hard segment content , the crystallinity of copolymer increased , thehard se gment content and the molecular weight of polyether were influence on the mechanical properties of copolymers 结果表明,共聚物的结晶度随聚酯硬段含量的增加而增加,而其力学性能则受聚酯硬段含量和聚醚分子量的影响。
With an increase of nmmo concentration of coagulation bath or concentration of casting solution , the crystallinity of membrane increases . however , an increase of temperature of coagulation bath is accompanied by a decrease of crystallinity of membrane 膜的结晶度随铸膜液浓度、凝固浴浓度、刮膜速度的增加而增大,随凝固浴温度的升高而降低。
When polyester fiber is subject to different draw ratio and heating temperature during high speed spinning , it will result in changes of the original molecular orientation and crystallinity of the fiber , thus affecting its physical properties 摘要在高速纺丝过程中对聚酯施以不同的拉伸倍数与温度,会造成纤维结晶度与取向度的变化,从而影响纤维的物理性能。