Effect of the Characteristics of Maleic Anhydride-Grafted Polypropylene (MAPP) Compatibilizer on the Properties of Highly Filled (85%) Kenaf-Polypropylene Composites

被引:0
|
作者
Sanadi, Anand Ramesh [1 ]
Stelte, Wolfgang [2 ]
机构
[1] Univ Copenhagen, Fac Sci, Dept Geosci & Nat Resource Management, Rolighedsvej 23, DK-1958 Frederiksberg, Denmark
[2] Tech Univ Denmark, Dept Engn Technol & Didact, Lautrupvang 15, DK-2750 Ballerup, Denmark
来源
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS | 2023年 / 26卷
关键词
highly filled composites; compatibilizer; interface; kenaf; polypropylene; glycerine; fiberboard; composites; MECHANICAL-PROPERTIES; REINFORCING FILLERS; FIBERS; CELLULOSE; ADHESION;
D O I
10.1590/1980-5373-MR-2022-0428
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Kenaf polypropylene composites with high fiber load of 85 wt% were produced using glycerine as a processing aid and maleic anhydride-grafted polypropylene (MAPP) as a compatibilizer/coupling agent. Commercially available MAPPs with different molecular weights and anhydride contents were used to determine what properties of the MAPPs were important to achieve high mechanical properties of these highly filled composites. A homo-polymer and a random-polymer, were compared as matrix polymers. Composites were produced using a high-shear kinetic mixer followed by compression molding at pressures ranging between 345 and 5520 kPa. The data suggests that adding MAPPs with a low molecular weight and high anhydride content at concentrations of 5 wt% resulted in composites with the highest mechanical properties. The authors suggest that a combination of a high surface area, low viscosity and high anhydride content of the MAPP are resulting in a good stress transfer between fibers and matrix polymer.
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页数:6
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