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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synergistic effect of adding lignin and carbon black in poly(lactic acid)

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Author(s):
Thaís Ferreira da Silva [1] ; Fernanda Menezes [2] ; Larissa Stieven Montagna [3] ; Ana Paula Lemes [4] ; Fabio Roberto Passador [5]
Total Authors: 5
Affiliation:
[1] Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia. Laboratório de Tecnologia em Polímeros e Biopolímeros - Brasil
[2] Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia. Laboratório de Tecnologia em Polímeros e Biopolímeros - Brasil
[3] Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia. Laboratório de Tecnologia em Polímeros e Biopolímeros - Brasil
[4] Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia. Laboratório de Tecnologia em Polímeros e Biopolímeros - Brasil
[5] Universidade Federal de São Paulo. Instituto de Ciência e Tecnologia. Laboratório de Tecnologia em Polímeros e Biopolímeros - Brasil
Total Affiliations: 5
Document type: Journal article
Source: POLIMEROS-CIENCIA E TECNOLOGIA; v. 30, n. 1 2020-05-11.
Abstract

Abstract Antistatic packaging is a very important sector since the electrostatic discharge of electronic devices can damage and/or disable these products. In addition, it is essential to dispose of this packaging correctly. In this work, the synergistic effect of the addition of lignin and carbon black on the development of antistatic and biodegradable packaging was verified. In this study, PLA was mixed with lignin and carbon black and the composites were prepared using a high-speed thermokinetic homogenizer where the melting of the PLA and the blend with fillers occurred by friction. The composites were characterized by Izod impact tests, scanning electron microscopy, thermal properties, electrical characterization and biodegradation tests in garden soil. The results show that lignin is a great option to accelerate the biodegradation of PLA in the garden soil and the carbon black acts as an antistatic agent reducing the electrical resistivity of the composites. (AU)

FAPESP's process: 14/04900-9 - Development of UHMW-PE/LLDPE BLEND-BASED carbon nanotube nanocomposite for high impact applications
Grantee:Fabio Roberto Passador
Support Opportunities: Regular Research Grants