Development and characterization of a polymeric composite from the endocarp of murumuru (Astrocaryum murumuru Mart.) and recycled polyolefins

Materia

article

William Arthur dos Santos de Lima¹  Ana Carolina de Assis Sousa¹  David Rodrigues Brabo¹  Jucélio Lima Lopes Junior¹  Carmen Gilda Barroso Tavares Dias¹ 

[1] Universidade Federal do Pará

关键词: Production Chain;    Composites;    Commercialization of Recyclables;    Circular Economy;   

DOI  :  10.1590/1517-7076-RMAT-2022-0160

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

The intense industrial activity in the Amazon region generates a large amount of waste, including non-wood lignocellulosic waste. The present study evaluated the use of murumuru tegument (Astrocaryum murumuru Mart.) in the production of a plastic wood composite, in which a 70/30 proportion of polypropylene and murumuru tegument and 2% maleic anhydride were used. The wood-plastic composites were compression molded in a thermo-hydraulic press. The murumuru tegument was characterized as to its lignin and cellulose content and as to its morphology through Scanning Electron Microscopy (SEM). The composites were evaluated for their morphology through SEM and for their mechanical properties through the flexural strength test, where the pure PP plates showed a mechanical performance 21.7% higher than the composite with 30% residue, for Significance values (P < 0.05) there was no static difference between the plates. The infrared spectrometry patterns indicated that the composition of the vegetal filler is characterized by constituents such as lignin, cellulose and hemicellulose. The results obtained indicated good performance of plastic wood, thus, the objective of this work was achieved.

【 授权许可】

CC BY