Compatibilization and mechanical properties of compression-molded polypropylene/high-impact polystyrene blends

被引：13

作者：

de Mello, Felipe Bier ^{[1
]}

Bohrz Nachtigall, Sonia Marli ^{[2
]}

Salles, Cleia de Andrade ^{[3
]}

Amico, Sandro Campos ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, PPGE3M, Bento Goncalves, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Chem, Porto Alegre, RS, Brazil

[3] Inst Fed Sul Rio Grandense, Sapucaia Do Sul, RS, Brazil

来源：

PROGRESS IN RUBBER PLASTICS AND RECYCLING TECHNOLOGY | 2018年 / 34卷 / 03期

关键词：

Blends; PP; HIPS; compatibilization; characterization; POLYPROPYLENE/POLYSTYRENE BLENDS; MORPHOLOGY; HIPS; PP;

D O I：

10.1177/1477760618798275

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This research work focused on polypropylene/high-impact polystyrene polymer blends. Since this blend (80/20 in weight) was incompatible, styrene-ethylene-butylene-styrene (SEBS) block copolymer, styrene-butadiene-styrene (SBS), and ethylene vinyl acetate were tested as compatibilizers (2.5 or 7.5 wt% in relation to blend). After blending via extrusion, the compositions were compression molded and their mechanical (tensile and impact), morphological (scanning electron microscopy), and rheological (melt flow index and viscosity) properties were evaluated. Blends containing SBS and 7.5 wt% of SEBS showed a positive effect regarding impact strength, although with a decrease in Young's modulus and tensile strength. Rheological characteristics were also affected by the compatibilizers.

引用

页码：117 / 127

页数：11

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