Effects of alkali treatment to reinforcement on tensile properties of curaua fiber green composites
Effects of alkali treatment to reinforcement on tensile properties of curaua fiber green composites
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DOI：
10.1299/jsmea.47.541
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发表时间：
2004-10-01
期刊：
影响因子：
--
通讯作者：
Ohgi, J
中科院分区：
文献类型：
--
作者：
Gomes, A;Goda, K;Ohgi, J
对“Curaua”纤维进行碱处理以提高其机械性能。将 Curaua 纤维浸入 5%、10% 和 15% 浓氢氧化钠溶液中 1 小时和 2 小时。评估了溶液浓度和处理时间对curaua纤维物理和机械性能的影响。对未经处理和碱处理的库拉阿纤维进行了拉伸测试。结果表明，与未处理的纤维相比，处理过的纤维的拉伸强度下降，而与未处理的纤维相比，处理过的纤维的断裂应变大大增加。此外，通过压制成型方法制备了由未经处理和碱处理的curaua纤维增强的绿色复合材料。对两种复合材料进行了拉伸测试。结果表明，与使用未处理纤维的复合材料相比，使用处理纤维的复合材料的拉伸强度和断裂应变均有所增加。
Alkali treatment was performed on 'Curaua' fibers to improve their mechanical properties. Curaua fibers were dipped into 5%, 10%, and 15% concentrated sodium hydroxide solutions for 1 h and 2 h. The effects of solution concentrations and treatment times on the physical and mechanical properties of curaua fibers were evaluated. Tensile tests of untreated and alkali treated curaua fibers were carried out. Those results showed that the tensile strength of the treated fibers decreased in comparison to untreated fibers, whereas the fracture strain of the treated fibers increased greatly in comparison with that of untreated fibers. In addition, green composites reinforced by untreated and alkali-treated curaua fibers were fabricated by a press forming method. Tensile tests were carried out for both composites. Results showed that-both tensile strength and fracture strain of the composite using treated fibers increased in comparison with the composite using untreated fibers.