Composites based on low-density polyethylene combined with PETcoated SBS paperboard shavings

AUTOR(ES)

Goll, Maiara Fernanda Gonçalves Holz, Venzon, Julia Santos, Vegini, Atilano Antonio, Eleotério, Jackson Roberto, Tavares, Lorena Benathar Ballod

FONTE

Matéria (Rio J.)

DATA DE PUBLICAÇÃO

06/12/2018

RESUMO

ABSTRACT In this study, polymer composites comprised of shavings of SBS paperboard coated with polyethylene terephthalate (PET) and recycled low-density polyethylene (LDPE) were obtained. The tensile properties, flexural strength, impact resistance and water absorption were determined according to the standards published by the American Society for Testing and Materials (ASTM). The results show that the composites with the highest concentration of LDPE were more resistant to absorption when exposed to water and humidity. As regards density, a 19.5% increase of this property was verified for the 30% cellulosic fiber reinforced composite relative to the pure LDPE density. In relation to the mechanical properties, these samples were found to be very flexible in the elasticity test. The extrusion method provided adequate adhesion between the interfaces of the matrix with the fiber. The composite showed a tensile strength of approximately 55% larger than that originated by pressing. However, the values for the tensile, flexural and impact strength were lower than expected due to the lack of homogeneity of the SBS paperboard shavings.

Documentos Relacionados

• Characterisation of Cassava Bagasse and Composites Prepared by Blending with Low-Density Polyethylene
• Zinc layered hydroxide salts: intercalation and incorporation into low-density polyethylene
• Rheological properties of low-density polyethylene filled with hydrophobic Co(Ni)-Al layered double hydroxides
• Why are low-density lipoproteins atherogenic?
• Dexterous hand gestures recognition based on low-density sEMG signals for upper-limb forearm amputees