Foams with Enhanced Ductility and Impact Behavior Based on Polypropylene Composites

被引：14

作者：

Munoz-Pascual, Santiago ^{[1
]}

Saiz-Arroyo, Cristina ^{[2
]}

Vuluga, Zina ^{[3
]}

Cosmin Corobea, Mihai ^{[3
]}

Angel Rodriguez-Perez, Miguel ^{[1
]}

机构：

[1] Univ Valladolid, Cellular Mat Lab CellMat, Valladolid 47011, Spain

[2] CellMat Technol SL, Paseo Belen 9-A,CTTA Bldg, Valladolid 47011, Spain

[3] Natl Inst Res & Dev Chem & Petrochem ICECHIM, 202 Spl Independentei, Bucharest 060021, Romania

来源：

POLYMERS | 2020年 / 12卷 / 04期

关键词：

polypropylene; long-chain branching; SEBS; halloysite nanotubes; foam; impact strength; glass fiber; ductility; cellular structure; open cell; MECHANICAL-PROPERTIES; CRYSTALLIZATION BEHAVIOR; FRACTURE-TOUGHNESS; PHASE MORPHOLOGY; G-MA; NANOCOMPOSITES; STRENGTH; TENSILE; BLENDS; POLYCARBONATE;

D O I：

10.3390/polym12040943

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this work, formulations based on composites of a linear polypropylene (L-PP), a long-chain branched polypropylene (LCB-PP), a polypropylene-graft-maleic anhydride (PP-MA), a styrene-ethylene-butylene-styrene copolymer (SEBS), glass fibers (GF), and halloysite nanotubes (HNT-QM) have been foamed by using the improved compression molding route (ICM), obtaining relative densities of about 0.62. The combination of the inclusion of elastomer and rigid phases with the use of the LCB-PP led to foams with a better cellular structure, an improved ductility, and considerable values of the elastic modulus. Consequently, the produced foams presented simultaneously an excellent impact performance and a high stiffness with respect to their corresponding solid counterparts.

引用

页数：19

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