Effect of MAPP and TMPTA as compatibilizer on the mechanical properties of cellulose and oil palm fiber empty fruit bunch–polypropylene biocomposites
Effect of MAPP and TMPTA as compatibilizer on the mechanical properties of cellulose and oil palm fiber empty fruit bunch–polypropylene biocomposites
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DOI：
10.1163/156855408783810876
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发表时间：
2008-01
影响因子：
2.6
通讯作者：
M. Khalid;A. Salmiaton;T. Chuah;C. Ratnam;S. Choong
中科院分区：
文献类型：
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作者：
M. Khalid;A. Salmiaton;T. Chuah;C. Ratnam;S. Choong
研究了相容剂马来酸酐接枝聚丙烯（MAPP GR-205）和三丙烯酸异丙酯（TMPTA）对PP-纤维素（油棕空果串纤维）和PP-油棕空果串纤维（EFBF）生物复合材料力学性能和形态结构的影响。PP：纤维素和PP：EFBF的比率固定为70：30（wt/wt%），而增容剂的浓度从2.0至7.0 wt%变化。结果表明，在2.0wt%的MAPP浓度，PP-EFBF生物复合材料的拉伸强度显着提高。这是由于增强的EFBF基质粘附导致EFBF生物复合材料性能的改善。加入MAPP后，PP-纤维素生物复合材料的性能没有显著变化。在PP-纤维素生物复合材料中加入2.0wt%的TMPTA，拉伸强度、弯曲模量和冲击强度得到了显著提高。在TMPTA存在下的机械性能的增强被认为归因于多官能单体与纤维素的羟基基团的交联。
The effect of compatibilizers, namely, maleic anhydride grafted polypropylene (MAPP GR-205) and trimethylolpropane triacrylate (TMPTA), on the mechanical and morphological properties of the PP-cellulose (derived from oil palm empty fruit bunch fiber) and PP-oil palm empty fruit bunch fiber (EFBF) biocomposites has been studied. The ratio of PP : cellulose and PP : EFBF is fixed to 70 : 30 (wt/wt%) while the concentration of the compatibilizer is varied from 2.0 to 7.0 wt%. Results reveal that at 2.0 wt% of MAPP concentration, tensile strength of PP-EFBF biocomposite is significantly improved. This is due to the enhanced EFBF matrix adhesion resulting in an improvement in EFBF biocomposite performance. There are no significant changes observed in the PP-cellulose biocomposite properties upon the addition of MAPP. In contrast to the tensile strength, flexural modulus and impact strength are significantly improved with the addition of 2.0 wt% TMPTA to PP-cellulose biocomposite. The enhancement of mechanical properties in the presence of TMPTA is believed to be attributed to crosslinking of multifunctional monomer with the hydroxyl groups of cellulose.