THE POROSITY CALCULATION OF VARIOUS TYPES OF PAPER USING IMAGE ANALYSIS

N. H. Astuti(1), N. A. Wibowo(2), M. R. S. S. N. Ayub(3),

DOI: https://doi.org/10.15294/jpfi.v14i1.9878


(1) Departement of physics, Faculty of Science and Mathematics, Universitas Kristen Satya Wacana
(2) Departement of physics, Faculty of Science and Mathematics, Universitas Kristen Satya Wacana
(3) Departement of physics, Faculty of Science and Mathematics, Universitas Kristen Satya Wacana

Abstract

The paper porosity study has been done by observing microscopically.The purpose is provide airborne porosity data on various paper types, so that we can rank the ability of liquid absorption on the same paper type. This porosity analysis is done by using ImageJ, with converting the image to binary, set the threshold limit, and clarify the watershed limit. The result of the porosity of filter paper A=51,50586 , B=18,30719 ,C=21,68076 ,D=29,72028 ; tissue paper A=9,174071 ,B=20,96931 ,C=32,76454 ; HVS paper A=23,31616 ,B=27,70944 . So it can be concluded that the ability of filter paper absorption A > filter paper D > filter paper C > filter paper B. Absorption ability tissue paper C > tissue paper B > tissue paper A. Absorption ability HVS B paper > HVS paper A. In general can be inferred that the higher the porosity value of the paper the greater ability to absorb liquids on paper.

Keywords

Image; Paper; Porosity

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