1) free column volume (FCV)
自由床体积
2) 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。
3) 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。
4) VFW
自由水体积
5) free volume model
自由体积模型
1.
Using group contribution method and free volume model,effects of polymer groups on membrane performance were analyzed.
采用基团贡献法和自由体积模型,分析了聚合物基团对膜分离性能的影响,比较了不同聚合物基团对O2和N2选择性和渗透性的贡献,预测了特定基团聚合物对O2和N2的分离性能。
2.
The finite concentration diffusion coefficients of the solvents in polysiloxane membrane were calculated by means of Vrentas-Duda free volume model.
15K温度,测定了正己烷、正庚烷、正癸烷、甲苯和丁酮溶剂在有机硅膜中的无限稀释扩散系数,结合Vrentas-Duda自由体积模型计算得到溶剂/有机硅膜体系溶剂有限浓度扩散系数,在理论上预测了不同溶剂在有机硅膜中扩散特性对膜分离性能的影响,在实验和理论两个方面,为进一步研究有机硅膜分离机理打下了基础。
3.
Then applications of this distribution to the Free Volume Model and Harmonic Oscillator Model for liquid are given.
简单讨论了T p分布对以压力为自变量的物态方程的描述 ,并给出了其在自由体积模型和液体谐振子模型中的应用 ,得到了这些模型中的吴 经参数的具体表示式。
6) free-volume theory
自由体积理论
1.
Vrentas and Duda proposed a model based on the free-volume theory to predict diffusion coefficients of low molecular weight solvent in polymeric materials.
Vrentas-Duda模型以自由体积理论为基础,所有参数不需扩散实验测量,由溶剂和高分子的分子性质独立确定,可用于预测高分子聚合物中低相对分子质量溶剂扩散系数。
2.
The free-volume theory was applied to simulate the dependence of viscosity on temperature for bagasse Kraft black liquor at low solids concentrations.
利用聚合物自由体积理论模拟了蔗渣浆低浓黑液粘度对温度的依赖性的数学模型, 最终得出黑液多聚物粘度与温度的相关式:)]/(exp[011TTBA-=h。
3.
At the same time,the research explained the above relation by free-volume theory from the aspect of molecular structure.
研究证实,橡胶填充油的组成与它的玻璃化温度存在一定的相关性:未分馏橡胶填充油的玻璃化温度,介于其饱和烃与芳香烃馏分各自的玻璃化温度之间;同时从分子结构角度用自由体积理论阐释了上述关系,目前有关橡胶填充油的玻璃化温度尚未见报道。
补充资料：床体积
分子式：
CAS号：
性质：在柱色谱分离法中，色谱柱中填充吸附剂，吸附剂与其间隙中的液体总称为吸附床。其表观体积(=床截面积×床高)称为柱体积。
CAS号：
性质：在柱色谱分离法中，色谱柱中填充吸附剂，吸附剂与其间隙中的液体总称为吸附床。其表观体积(=床截面积×床高)称为柱体积。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条