Mechanical properties and failure modes of recycled polypropylene/microcrystalline cellulose composites

被引：101
作者：
Zulkifli, N. Izzati [1 ]
Samat, N. [1 ]
Anuar, H. [1 ]
Zainuddin, N. [2 ]
机构：
[1] Int Islamic Univ Malaysia IIUM, Kulliyyah Engn, Dept Mfg & Mat Engn, Kuala Lumpur 53100, Malaysia
[2] Univ Putra Malaysia, Fac Sci, Dept Chem, Upm Serdang 43400, Selangor, Malaysia
来源：
MATERIALS & DESIGN | 2015年 / 69卷
关键词：
Recycled polypropylene; Microcrystalline cellulose; Maleic anhydride grafted polypropylene; Mechanical properties; REINFORCED POLYPROPYLENE COMPOSITES; FIBER; MORPHOLOGY; PERFORMANCE; TENSILE; FILLERS;
D O I：
10.1016/j.matdes.2014.12.053
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of microcrystalline cellulose (MCC) fibre on the properties of recycled polypropylene (rPP) composites were investigated. A coupling agent, maleic anhydride grafted-polypropylene (MAPP) was used to improve the interfacial adhesion between the MCC fibres and rPP matrix. A series of rPP/MCC composites, with or without MAPP, were compounded with an extruder and then moulded with an injection moulding machine. It was found that without MAPP, an increase in MCC loadings caused degradation in the tensile strength of rPP composites. However, the impact strength was higher compared to that of neat rPP prior to its decrease caused by the increase in MCC loading. All mechanical properties showed improvement after MAPP was added, especially in tensile modulus. FESEM morphology also revealed better interfacial adhesion between the MCC fibres and the rPP matrix. Fracture analysis indicated that the ductile and quasi-brittle behaviours in both types of rPP/MCC composites (with or without MAPP) were affected by the concentration of fibres and the interfacial adhesion strength. (C) 2015 Elsevier Ltd. All rights reserved.
引用
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页码：114 / 123
页数：10
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