Effect of LLDPE on Aging Resistance and Thermal, Mechanical, Morphological Properties of UHMWPE/LLDPE Blends

Autor(es)

dos Santos, Caroline Martins ^[1] ; da Silva, Bruna Cristina ^[1] ; Backes, Eduardo Henrique ^[2] ; Montagna, Larissa Stieven ^[1] ; Pessan, Luiz Antonio ^[2] ; Passador, Fabio Roberto ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo UNIFESP, Sao Jose Dos Campos, SP - Brazil

^[2] Univ Fed Sao Carlos UFSCAR, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 21, n. 5 2018.
• Citações Web of Science: 0

Resumo

Blends of ultra-high molecular weight polyethylene (UHMWPE) and different contents (0, 10, 20 and 30 wt%) of linear low-density polyethylene (LLDPE) with and without maleic anhydride-grafted LLDPE (LLDPE-g-MA) were prepared by melt blending and aging resistance, thermal and mechanical properties were evaluated. The degree of crystallinity increases with the content of LLDPE in the blends. On the other hand, the addition of compatibilizer agent modifies the crystallinity and the crystallite size. Non-compatibilized blends have excellent impact resistance properties and the addition of LLDPE-g-MA aids processing but decrease the impact resistance of the blends. Thermal and mechanical properties were greatly affected by thermal and water aging. The thermal aging leads to an increase in the degree of crystallinity and consequent a decrease in impact resistance. (AU)

• Processo FAPESP: 14/04900-9 - Desenvolvimento de nanocompósitos de blendas de UHMW-PE/LLDPE e nanotubos de carbono para aplicações de alto impacto
• Beneficiário: Fabio Roberto Passador
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/19978-9 - Desenvolvimento de nanocompósitos de blendas de PA6/LLDPE e negro de fumo para embalagens antiestáticas para componentes eletrônicos
• Beneficiário: Fabio Roberto Passador
• Modalidade de apoio: Auxílio à Pesquisa - Regular