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Fundamental studies of isotactic polypropylene composites with brown coals: structure–properties relationship


[ 1 ] Wydział Technologii Chemicznej, Politechnika Poznańska | [ 2 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ 3 ] Instytut Technologii Materiałów, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ SzD ] doctoral school student | [ D ] phd student | [ P ] employee

Scientific discipline (Law 2.0)

[2.8] Materials engineering
[7.6] Chemical sciences

Year of publication


Published in

Journal of Natural Fibers

Journal year: 2023 | Journal volume: vol. 20 | Journal number: no. 1

Article type

scientific article

Publication language


  • Isotactic polypropylene
  • wood–polymer composites
  • Beta form of iPP
  • brown coal
  • crystalline structure
  • composites

EN Wood–polymer composites (WPCs) are commonly used in materials technology, and there is a reasonable amount of research for new kinds of green fillers. In this study, we have obtained the isotactic polypropylene (iPP) composites filled with native and modified xylite (brown coal fraction with a relatively high amount of cellulose). The modification of xylite has been based on processing in a mine, where the humic acids are rinsed with KOH solution for further use. The composites were subjected to a wide range of structural, thermal, functional, and mechanical characteristics. The results of the undertaken research have shown that the addition of xylite filler can be successfully used in obtaining of thermoplastic composites. The properties of those composites are similar to another types of WPCs. There also observed a strong impact of xylite filler addition into formation of β-iPP form.

Date of online publication


Pages (from - to)

2190553-1 - 2190553-14





Article number: 2190553

License type


Open Access Mode

czasopismo hybrydowe

Open Access Text Version

final published version

Release date


Date of Open Access to the publication

at the time of publication

Full text of article

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Ministry points / journal


Impact Factor

3,5 [List 2022]

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