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

Polimeros,Ciencia e Tecnologia

article

Erick Gabriel Ribeiro dos Anjos¹  Juliano Marini²  Larissa Stieven Montagna¹  Thaís Larissa do Amaral Montanheiro³  Fabio Roberto Passador¹ 

[1] Laboratório de Tecnologia em Polímeros e Biopolímeros – TecPBio, Departamento de Ciência e Tecnologia – DCT, Instituto de Ciência e Tecnologia – ICT, Universidade Federal de São Paulo – UNIFESP;Departamento de Engenharia de Materiais – DEMa, Universidade Federal de São Carlos – UFSCar;Laboratório de Plasmas e Processos – LPP, Instituto Tecnológico de Aeronáutica – ITA

关键词: ABS;    g -MA;    melt-grafting;    blends;    compatibilizer agent;    reactive extrusion;   

DOI  :  10.1590/0104-1428.09220

来源: Brazilian Academy Of Neurology

【 摘 要 】

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.

【 授权许可】

Unknown