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1)  molecular free volume
分子自由体积
2)  moleclar free volume
分子自由容积
3)  free volume fraction
自由体积分数
4)  Free-volume distribution
自由体积分布
5)  free-volume
自由体积
1.
Many experimental results have shown that the positron annihilation technique is an advanced technique for the test and characterization of the polymer microstructure, such as the free-volume of polymers.
实验结果证明,正电子湮没技术是一种先进的材料微观结构—自由体积的探测和表征技术。
2.
It is observed that the average size of free-volume holes generally remains constant,and the hole concentration and the width of hole radius distribution decrease with the increase in radiation dose.
测量了高强度聚苯乙烯(HIPS)的正电子寿命谱随γ辐照剂量的变化,观察到自由体积孔洞的平均半径随辐照剂量的增加而基本不变,且自由体积孔洞的浓度和半径分布宽度随辐照剂量的增加而减小。
3.
This paper explained the diffusion of migratory substances from crystalline polyolefins from microcosmic view according to Vrentas-Duda free-volume theory,discussed the effect of temperature,density of polyolefins,molecular structure of migratory substances and swelling on diffusion coeff.
根据Vrentas-Duda自由体积理论,从"微观"角度解释了渗透质在结晶聚烯烃中的扩散。
6)  Free volume
自由体积
1.
The results indicate that the discrete shear bands are formed around the indent and the local free volume is increased in the bulk metallic glass by deformation.
结果表明:在压痕周围形成离散的剪切带,形变引起了块状非晶合金局部自由体积增加。
2.
Positron annihilation lifetime spectroscopy(PALS) was used to investigate the free volume properties of PA6/clay nanocomposites in the temperature range from 10 K to 290 K below their glass transitions.
正电子湮没寿命的连续谱分析还表明,纳米粘土的含量和温度对自由体积分布有重要影响。
3.
Effects of toughening agent and temperature on the free volume and mechanical properties were studied by positron annihilation lifetime spectroscopy(PALS) and dynamic mechanical analysis(DMA) for a serious of epoxy resin samples with different toughening agent content(W/W).
用正电子湮没方法(PALS)和动态力学分析(DMA)方法研究了增韧剂和温度对环氧树脂的自由体积和力学性能的影响。
补充资料:克分子体积
分子式:
CAS号:

性质:旧称克分子体积。符号为Vm。定义式:Vm=V/n。式中V为系统的体积;n为这一系统中某基本单元的物质的量。SI单位为m3/mol。化工中常用L/mol。在热力学温度为273.15K和压力为101.325kPa下理想气体分子的摩尔体积为Vm,0=(22.41410±0.00019)L/mol。这个值的相对不确定度为8.4×10-6。

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