Influence of Maleated Polypropylene Coupling Agent on Mechanical and Thermal Behavior of Latania Fiber-Reinforced PP/EPDM Composites

被引：22
作者：
Daghigh, Vahid [1 ]
Lacy, Thomas E., Jr. [1 ]
Pittman, Charles U., Jr. [2 ]
Daghigh, Hamid [3 ]
机构：
[1] Mississippi State Univ, Dept Aerosp Engn, Mississippi State, MS 39762 USA
[2] Mississippi State Univ, Dept Chem, Mississippi State, MS 39762 USA
[3] Univ British Columbia, Sch Engn, Kelowna, BC V1V 1V7, Canada
来源：
POLYMER COMPOSITES | 2018年 / 39卷
关键词：
METAL LAMINATE COMPOSITES; NATURAL FIBER; POLYESTER COMPOSITES; ACID) COMPOSITES; IMPACT BEHAVIOR; TENSILE; POLYETHYLENE;
D O I：
10.1002/pc.24752
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The influence of maleated polypropylene (MAPP) on the mechanical/thermal properties of short latania fiber-reinforced poly(propylene/ethylene-propylene-dienemonomer (SLF/PP/EPDM) composites was investigated. Two different MAPP weight percentages (0 and 2wt%) and five different fiber weight contents (0, 5, 10, 20, and 30wt%) were considered, where the density of MAPP at the fiber surfaces progressively decreased. For a given fiber loading, addition of 2wt% MAPP led to roughly a 3-9% increase in tensile/flexural moduli and strengths over SLF/PP/EPDM composites with no MAPP. Moreover, composites containing MAPP displayed a profound improvement (37-78%) in impact energy absorption. In addition, composite heat deflection temperatures notably increased by 3-4 degrees C with MAPP addition. Microscopic imaging suggested that matrix crazing, fiber pull-out, and fiber fractures were key failure mechanisms. Hence, SLF/ PP/EPDM composites modified with 2%wt MAPP may serve as a low cost alternative to other natural fiber thermoplastic composites. (C) 2018 Society of Plastics Engineers
引用
收藏
页码：E1751 / E1759
页数：9
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