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A comparative study on selective properties of Kraft lignin–natural rubber composites containing different plasticizers

Abstrakt

Effect of plasticizer type on the kraft lignin–nat- ural rubber composite microstructure and selected proper- ties was determined. The composites were prepared with addition of a commonly used naphthenic oil plasticizer to study the decomposition product of polyurethane (glyc- erolysate) and its characteristics. Kraft lignin powder was incorporated into the natural rubber matrix in amounts of 10 and 40 parts per 100 parts of natural rubber (phr). The reference samples were prepared without any lignin pre- sent. The chemical interaction between the filler particles and natural rubber macromolecules was analyzed by Fou- rier transform infrared spectroscopy (FTIR) and the adhe- sion was characterized by scanning electron microscopy (SEM). The results of the adhesion measurements con- firmed poor distribution of lignin particles into the natural rubber matrix with increasing filler content. Optimal lignin content in the composites was 10 phr in the case of both plasticizers. Moreover, the results of FTIR verified the for- mation of non-covalent bonds and the need for modifica- tion of the filler to enhance the reinforcing effect in the nat- ural rubber matrix. Dynamic mechanical analysis (DMA) and mechanical measurements proved that the specimen containing 10 phr of lignin with the use of glycerolysate as plasticizer displayed the highest mechanical performance. It was demonstrated that glycerolysate and naphthenic oil as plasticizing agents showed similar effect on the thermal properties of the prepared composites. Also, the measured mechanical properties, such as tensile strength, hardness, resilience, and abrasiveness confirmed these findings

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
IRANIAN POLYMER JOURNAL nr 26, wydanie 6, strony 453 - 466,
ISSN: 1026-1265
Język:
angielski
Rok wydania:
2017
Opis bibliograficzny:
Datta J., Parcheta P.: A comparative study on selective properties of Kraft lignin–natural rubber composites containing different plasticizers// IRANIAN POLYMER JOURNAL. -Vol. 26, iss. 6 (2017), s.453-466
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s13726-017-0534-0
Weryfikacja:
Politechnika Gdańska

wyświetlono 96 razy

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