Roughness and color evaluation of wood polymer composites filled by household waste of mate-tea



Document title: Roughness and color evaluation of wood polymer composites filled by household waste of mate-tea
Journal: Maderas : ciencia y tecnología
Database:
System number: 000544669
ISSN: 0718-221X
Authors: 1
2
3
2
3
5
Institutions: 1Federal University of Paraná, Wood and Forestry Science Center, Curitiba. Brasil
2Federal University of Santa Maria, Forest Products Laboratory, Santa Maria. Brasil
3Federal University of Paraná, College of Materials Science & Engineering, Curitiba. Brasil
4Federal University of Pelotas, Faculty of Materials Engineering, Pelotas. Brasil
5Embrapa Forestry, Colombo. Brasil
Year:
Season: Jul
Volumen: 17
Number: 3
Pages: 457-468
Country: Chile
Language: Inglés
English abstract This study presents the preparation of polypropylene composites filled with mixtures of household waste of mate-tea and wood particles to increase the economic value chain of mate-tea, especially in Latin America. Filler mixtures in proportions ranging from 0 to 60% depending on the type of particle were used. The polypropylene matrix was fixed at 40% and roughness surface and color evaluation were performed. The highest mean roughness (Ra) was observed for the composite with 30:30% proportion of filler mixture, which denotes the difficulty of homogenizing a mixture of fillers with different shapes and dimensions. Nevertheless, even with higher roughness for composites with a balanced blend of filler, this does not imply the presence of large peaks and valleys. In general, all the composites presented a dark color. Variation of color composites was more evident for higher proportions of household waste of mate-tea.
Keyword: Aesthetic characteristics,
Economic value chain,
Eucalypt wood,
Ilex paraguariensis,
Polypropylene composite
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