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The influence of calcium carbonate and its modifications on the extrusion process and selected properties of polypropylene cast films


[ 1 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ 2 ] Instytut Technologii Materiałów, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 3 ] Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ P ] employee | [ S ] student

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering
[7.6] Chemical sciences

Title variant

PL Wpływ węglanu wapnia i jego modyfikacji na proces wytłaczania oraz wybrane właściwości użytkowe wylewanych folii polipropylenowych

Year of publication


Published in


Journal year: 2022 | Journal volume: vol. 67 | Journal number: no. 10

Article type

scientific article

Publication language


  • polypropylene
  • calcium carbonate
  • polymer composites
  • extrusion
  • films
  • tensile strength
  • extensional viscosity
  • haze
  • gloss

EN The effect of unmodified and stearic acid-modified calcium carbonate (5, 10, 20 and 30 wt%) on selected properties (tensile strength, puncture resistance, haze and gloss) and processability of polypropylene films (MVR, extensional viscosity) was investigated. The composites were obtained in the twin-screw extrusion process with cold granulation, and the films in the single-screw extrusion process, using a flat die head (so-called cast films) and a chill roll type cooling and pull-back device. It has been shown that stearic acid is an effective modifier of polypropylene processing properties both under shear and tensile flow conditions (lower extensional viscosity of films containing modified calcium carbonate).

Date of online publication


Pages (from - to)

509 - 521




Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

at the time of publication

Ministry points / journal


Impact Factor


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