1 / 18

Motivation for studying diffusion in polymers

Motivation for studying diffusion in polymers. Sorption Isotherm on PET at 25 C. Solubility and diffusivity of gasses in rubber. Permeability of gases in rubber. Permeability of gasses in various polymers.

jimmytaylor
Download Presentation

Motivation for studying diffusion in polymers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Motivation for studying diffusion in polymers

  2. Sorption Isotherm on PET at 25 C

  3. Solubility and diffusivity of gasses in rubber

  4. Permeability of gases in rubber

  5. Permeability of gasses in various polymers 1 Barrer = 10-11 (cm3 O2 ) cm cm-2 s-1 mmHg-1. or 1 Barrer = 10-10 (cm3 O2 ) cm cm-2 s-1 cmHg-1. Here 'cm3 O2' represents a molar quantity of oxygen rather than a true volume. It represents the quantity of oxygen that would take up one cubic centimeter at standard temperature and pressure, as calculated via the ideal gas law. The 'cm' represents the thickness of the material whose permeability is being evaluated, and cm-2 is the reciprocal of the surface area of that material. 1 Barrer = 846 millilitre . mm / (cm2 . day. bar(a)) 1 Barrer = 3.348 x 10-19 kmol m / (m2 s Pa)

More Related