Use of SEBS/EPR and SBR/EPR as Binary Compatibilizers for PE/PP/PS/HIPS Blends: A Work Oriented to the Recycling of Thermoplastic Wastes

✍ Scribed by Nilton Equiza; Wilfredo Yave; Raúl Quijada; Mehrdad Yazdani-Pedram

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 477 KB
• Volume: 292
• Category: Article
• ISSN: 1438-7492
• DOI: 10.1002/mame.200700148

✦ Synopsis

Abstract

Recycling of thermoplastic wastes consisting of PE/PP/PS/HIPS blends was investigated by using SEBS/EPR and SBR/EPR as compatibilizers. The effect of the binary compatibilizer systems and processing conditions on the mechanical properties and morphology of the blends are discussed. The SEBS/EPR system allowed blends with better mechanical properties to be obtained than the SBR/EPR system; this was attributed to the chemical structure similarity between compatibilizers and recycled materials. The optimal conditions for processing of the recycled thermoplastics (blends) were found to be 190 °C, 14 min of processing time and 3.5 wt.‐% of compatibilizer. The morphology and mechanical properties of the blends were discussed using theoretical phase diagrams and models proposed in the literature, and good agreements between these properties were found.

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