Reactive processing of maleic anhydride-grafted ABS and its compatibilizing effect on PC/ABS blends

Autor(es)

Ribeiro dos Anjos, Erick Gabriel ^[1] ; Marini, Juliano ^[2] ; Montagna, Larissa Stieven ^[1] ; do Amaral Montanheiro, Thais Larissa ^[3] ; Passador, Fabio Roberto ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo UNIFESP, Dept Ciencia & Tecnol DCT, Lab Tecnol Polimeros & Biopolimeros TecPBio, Inst Ciencia & Tecnol ICT, Sao Jose Dos Campos, SP - Brazil

^[2] Univ Fed Sao Carlos UFSCAR, Dept Engn Mat DEMA, Sao Carlos, SP - Brazil

^[3] Inst Tecnol Aeronaut ITA, Lab Plasmas & Proc LPP, Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: POLIMEROS-CIENCIA E TECNOLOGIA; v. 30, n. 4 2020.
• Citações Web of Science: 0

Resumo

Abstract Polymer compatibilizer agents are crucial for industrial materials development. Compatibilizer agents may be prepared by melt-grafting in the reactive extrusion process which is cheaper and environmentally friendly. Maleic anhydride-grafted acrylonitrile-butadiene-styrene (ABS-g-MA) has emerged as a relevant compatibilizer agent for immiscible blends, like polycarbonate (PC)/ABS. In this work, ABS-g-MA was prepared by a simple reactive extrusion process using ABS, maleic anhydride (MA) and benzoyl peroxide (BPO). The MA:BPO ratios of 1:0.5 and 1:1 varying the content of MA by 1, 2 and 5 wt% were investigated. The grafting reaction was confirmed through Fourier transform infrared spectroscopy (FT-IR), grafted degree (GD%), thermal and rheological analysis. The effectiveness of the compatibilizer agent was evaluated in PC/ABS blends (70/30 and 85/15 blend ratios). The addition of 5 wt% of ABS-g-MA (5 MA:2.5 BPO) in the PC/ABS blends promoted an expressive reduction of ABS domain sizes and better dispersion in the PC matrix. (AU)

• Processo FAPESP: 19/11130-9 - Desenvolvimento de nanocompósitos híbridos de grafeno e MWCNT em blendas de PC/ABS para carcaça de componentes eletrônicos
• Beneficiário: Erick Gabriel Ribeiro dos Anjos
• Modalidade de apoio: Bolsas no Brasil - Mestrado