The Vogel–Fulcher–Tammann equation, also known as Vogel–Fulcher–Tammann–Hesse equation or Vogel–Fulcher equation (abbreviated: VFT equation), is used to describe the …

Vogel -Fulcher -Tammann方程，也称为Vogel -Fulcher -Tammann -Hesse方程或Vogel -Fulcher方程（缩写：VFT方程），用于描述液体的粘度，尤其是其温度的函数，尤其是其强度接近玻璃 …

2013年7月1日 · The VFT expression of the viscosity is given by (1) η = η 0 exp B VFT T − T 0, where T is the absolute temperature, η 0 is the value of the viscosity at the high temperature …

2023年1月15日 · The prepared fabric exhibited excellent flame retardancy with a limiting oxygen index value (LOI) of 42.0 % and a damaged length of less than 40 mm in the vertical …

AMP-SiO 2 -KH570@COT shows the best flame retardancy with the highest char residue rate (48.7%) (6.5 times that of raw cotton fabric), and a LOI value of 27.7% (non-flammable level). …

2024年10月13日 · VFT and LOI tests were effective methods for assessing flame resistance. Generally, a higher LOI value and a shorter charcoal frame length indicate lower flammability …

L'équation de Vogel-Fulcher-Tammann, ou plus succinctement loi de Vogel-Fulcher, est une loi empirique utilisée dans la modélisation de différents problèmes physiques : viscosité d'un …

2022年4月25日 · The flame retardancy of uncoated and coated polyester fabrics was characterized by the vertical flammability test (VFT) and limiting oxygen index (LOI) test.

2019年8月27日 · The so-called Vogel-Fulcher-Tamman (VFT) relation has been extensively used to parameterize the relaxation dynamics in RF, although no microscopic description has been …

VFT law is the increase of the range of elas-tic interaction between local relaxation events. In this theory, we also discuss the origin of cooperativity of re-laxation, the absence of divergence of …