Submit an Article
Become a reviewer
Anton S. Yakimov
Junior Researcher
Siberian Federal University
Personal or department link
Junior Researcher
Personal or department link
Siberian Federal University
80
Total cited
5
Hirsch index

Articles

Geotechnical Engineering and Engineering Geology
  • Date submitted
    2021-09-16
  • Date accepted
    2022-02-24
  • Date published
    2022-04-29

Production of microfluidic chips from polydimethylsiloxane with a milled channeled surface for modeling oil recovery during porous rock waterflooding

Microfluidic chips with porous structures are used to study the flow of oil-containing emulsion in the rock. Such chips can be made from polydimethylsiloxane by casting into a master mold. At the initial stages of research, fast and cheap prototyping of a large number of different master molds is often required. It is proposed to use milling to make a channeled surface on a polymethyl methacrylate plate, from which a negative image should be taken, which is the master mold for casting positive polydimethylsiloxane chips in it. Several epoxy compositions have been tested to make this master mold. The main requirement in the search for the material was the exact replication of the geometry and sufficiently low adhesion to polymethyl methacrylate and polydimethylsiloxane for removing the product with minimal damage to the mold. It was possible to make master molds from all the materials used, but with defects and various degrees of damage. One of the epoxy compositions was found suitable for making a master mold with many elements simulating the grains of a porous medium (height to width ratio 2:3). The developed method makes it possible to use polydimethylsiloxane for prototyping chips simulating the porous structure of an oil rock.

Read more
Anton S. Yakimov, Andrey I. Pryazhikov, Maxim I. Pryazhikov, Andrey V. Minakov (2022) Production of microfluidic chips from polydimethylsiloxane with a milled channeled surface for modeling oil recovery during porous rock waterflooding. Journal of Mining Institute. Vol 253. p. 105-114. DOI: 10.31897/PMI.2022.9