Various viscosity measurement formula

Kinematic viscosity: V = K * (t-Δt)

Dynamic viscosity: η = K * (t - Δt) * ρ

Limit Viscosity --- ISO 1628/1 Schulz-Blaschke formula: [η] = I / (1 + K '· I · C)

Ultimate Viscosity --- Huggins Formula: [η] = [(1 + 4KHηsp) 1/2 -1] / 2KH · C

Ultimate Viscosity --- Kraemer Formula: [η] = [1 - (1 - 4β lnηr) 1/2] / 2 β · C

Solvent-Solomon-Ciuta equation: [η] = [2 (ηsp-lnηr)] 1/2 / C

Limiting viscosity number --- Malone Maron formula: [η] = (γlnηr + ηsp) / (1 + γ) · C

The ultimate viscosity --- Dong's formula [η] = (2lnηr + ηsp) / 3 · C.

Limit Viscosity --- Billmeyer formula: [η] = (3lnηr + ηsp) / 4 · C

Limiting viscosity - Martin Martin Log I = log [η] + K [η] · C.

Limit Viscosity --- Linear Extrapolation: Measure the viscosities and logarithm viscosities of more than three different concentrations of dilute polymer solutions for linear extrapolation to determine the limiting viscosity.

Relative viscosity: ηr = (t - Δt) / (t0 - Δt0)

Viscosity number: I = (ηr-1) / C

K value for polyvinyl chloride and polyvinyl alcohol according to the Fickentscher formula: K = 1000 {a - 1 + [1 + (2 / C + 2+ a) a] 1/2} / (150 + 300C)

Where: a = 1.5 logηr

The above limit viscosity number measurement, such as the input Mark -houwink formula K, α value can be calculated viscosity average molecular weight.

M = ([η] / K) 1 / α

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Kent Yuan (Mr.) Hangzhou Zhongwang Technology Co., LTD. Skype: kenyuan9023   Wechat/WhatsApp:+86 15068109723E lei@zonwon.com  W www.zonwontech.com

Application of Hangzhou Zhongwang's Viscometer in Polymer, Plastics, Rubber and Other Fields

Application of Hangzhou Zhongwang's Viscometer in Polymer, Plastics, Rubber and Other Fields

Polymer material characterization is an important field of polymer science. From the initial aggregation, laboratory analysis, prediction of processability, and then to predict end-use performance, and the impact of material degradation on the environment, polymer characterization is an important way for us to understand or predict material properties throughout the life cycle process.

Hangzhou Zhongwang Technology CO.,LTD of Ubbelohde viscosity automatic measurement equipment can quickly measure the kinematic viscosity, dynamic viscosity, Concentrated viscosity, intrinsic viscosity, relative viscosity, polymer molecular weight, rheological properties and other information. The software integrates almost all of the viscous calculation formulas, and the experimenter does not need to do it manually.

Application of polymer recycling:

Recycling may cause changes in polymer properties. For example, shearing and heating can cause degradation; the addition will weaken the material properties. Therefore, the quality control of recycled materials is of great importance to the target application of these materials. The automatic viscosity measurement system of Hangzhou Zhongwang Technology Co.,ltd can measure the intrinsic viscosity and viscosity average molecular weight of the recovered polymer.

Kent Yuan (Mr.) Hangzhou Zhongwang Technology Co., LTD.

P  /Wahtsapp: +86 15068109723  E lei@zonwon.com