The effects of alkali-silane treatment on the tensile and flexural properties of short fibre non-woven kenaf reinforced polypropylene composites
The effects of alkali-silane treatment on the tensile and flexural properties of short fibre non-woven kenaf reinforced polypropylene composites
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DOI：
10.1016/j.compositesa.2012.04.007
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发表时间：
2012-09-01
影响因子：
8.7
通讯作者：
Paskaramoorthy, R.
中科院分区：
文献类型：
--
作者：
Asumani, O. M. L.;Reid, R. G.;Paskaramoorthy, R.
采用模压成型法制备了红麻纤维增强丙纶复合材料。红麻纤维分为三种形式：未经处理的，用氢氧化钠溶液处理，然后用氢氧化钠溶液处理，然后用三氨基丙基三乙氧基硅烷处理。研究了这些化学处理对复合材料拉伸和弯曲性能的影响。力学性能测试结果表明，碱处理后的三氨基丙基三乙氧基硅烷处理(碱-硅烷处理)能显著提高红麻短纤维非织造布复合材料的拉伸和弯曲性能。尤其是纤维质量分数为30%的碱-硅烷处理红麻复合材料的比拉伸强度和弯曲强度仅比玻璃纤维复合材料低4%和11%。扫描电子显微镜观察表明，碱-硅烷处理后的拉伸和弯曲性能的改善可以归因于纤维与基质之间更好的结合。(C)2012爱思唯尔有限公司。保留所有权利。
Kenaf fibre reinforced polypropylene composites were manufactured by compression moulding. The kenaf fibre was considered in three forms; untreated, treated with sodium hydroxide solution and treated with sodium hydroxide solution followed by three-aminopropyltriethoxysilane. The effects of these chemical treatments on the tensile and flexural properties of the composites were investigated. Mechanical test results show that alkali treatment followed by three-aminopropyltriethoxysilane treatment (alkali-silane treatment) significantly improves the tensile and flexural properties of short fibre non-woven kenaf polypropylene composites. In particular, the specific tensile and flexural strengths of alkali-silane treated kenaf composites with 30% fibre mass fraction are, respectively, only 4% and 11% lower than those of composites made using glass fibre. Scanning electron microscopy examination shows that the improvements in the tensile and flexural properties resulting from alkali-silane treatment can be attributed to better bonding between the fibres and matrix. (c) 2012 Elsevier Ltd. All rights reserved.