Elaboration of low viscosity and high impact polypropylene blends through reactive extrusion

被引：2

作者：

Josse, Camille ^{[1
,2
,4
]}

Massardier, Valerie ^{[1
]}

Khrouz, Lhoussain ^{[3
]}

Cassagnau, Philippe ^{[4
]}

Viot, Frederic ^{[2
]}

机构：

[1] Univ Lyon, INSA Lyon, Ingn Mat Polymeres, CNRS,UMR 5223, F-69621 Villeurbanne, France

[2] Plast Omnium Sigmatech, Ave Bois Vergnes, F-01800 St Julie, France

[3] Univ Lyon, CNRS, Ecole Normale Super Lyon, Lab Chim,UMR 5182, F-69364 Lyon, France

[4] Univ Lyon 1, Ingn Mat Polymeres, CNRS, UMR 5223, F-69621 Villeurbanne, France

来源：

POLYMER ENGINEERING AND SCIENCE | 2016年 / 56卷 / 04期

关键词：

MOLECULAR-WEIGHT DISTRIBUTION; RHEOLOGICAL BEHAVIOR; MULTIPLE EXTRUSIONS; DEGRADATION; COPOLYMERS; PEROXIDE; POLYETHYLENE; MORPHOLOGY; DIFFUSION;

D O I：

10.1002/pen.24267

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work, a reactive high flow polypropylene, PP800 ((0)=40 Pas, 190 degrees C), is extruded with a commercial compound of polypropylene and ethylene-propylene random copolymer ((0)=3000 Pas, 190 degrees C). On one hand, the fluidity of resulting blends is highly increased but, on the other hand, matrix degradation leads to a strong decrease of the impact behavior and tensile strain. Then, the addition of 10 wt% of propylene-based copolymer (PBC) leads to a very interesting impact enhancement while keeping high fluidity. A study of morphological, thermal, and dynamical thermal mechanical properties reveal the anchoring of semi crystalline propylene segments of PBC droplets at the interface with the PP matrix. On the contrary, the addition of ethylene-based copolymer (EBC) is not able to restore satisfactory impact properties. POLYM. ENG. SCI., 56:418-426, 2016. (c) 2016 Society of Plastics Engineers

引用

页码：418 / 426

页数：9

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