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首页> 外文会议>International Conference on Advances in Materials and Manufacturing Processes >Effects of Ramie Fiber Treatment on Thermo-oxidative Properties of High-Density Polyethylene/Ramie Fiber Composites
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Effects of Ramie Fiber Treatment on Thermo-oxidative Properties of High-Density Polyethylene/Ramie Fiber Composites

机译：苎麻纤维处理对高密度聚乙烯/苎麻纤维复合材料热氧化性能的影响

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摘要

On the investigations on the flexural properties, color stability and melting properties, the effects of treating ramie fiber with silane coupling agent on the anti-thermo-oxidative aging properties of high density polyethylene(HDPE)/ ramie fiber composites were studied. The results show that, treating the fiber with 3% coupling agent can improve the flexural strength and modulus of the composites before the aging test by 15.9% and 21.7% respectively, and also it can improve the flexural properties of the composites after the aging test; the modified composites will be more color stable, less color difference, and less disminish of the color during the aging test; the peak melting temperatures of the modified composites when aged for 0, 500, 1000, 1500 and 3000h will be increased by 0.6, 0.2, 0.5, 2.3 and 3.8°C from those of the unmodified composites; The flexural properties, color stability and melting properties of HDPE / ramie fiber composites during thermo-oxidative aging tests all indicate that treating ramie fiber with coupling agent can improve the anti-thermo-oxidative properties of the composites.
机译：研究了对弯曲性能，颜色稳定性和熔化性能的研究，研究了用硅烷偶联剂处理苎麻纤维对高密度聚乙烯（HDPE）/苎麻纤维复合材料的抗热氧化性能的影响。结果表明，用3％偶联剂治疗纤维可以在老化试验之前分别提高复合材料的抗弯强度和模量，分别为15.9％和21.7％，并且还可以改善老化试验后复合材料的弯曲性能;改性复合材料将更加色彩稳定，色差较少，并且在老化测试期间的颜色较少;改性复合材料的峰值熔化温度在为0,500,1000,1500和3000h时，将从未修饰复合材料的那些增加0.6,0.2,0.5,2.3和3.8℃;热氧化试验期间HDPE /苎麻纤维复合材料的弯曲性能，颜色稳定性和熔化性能均表明用偶联剂处理苎麻纤维可以改善复合材料的抗热氧化性能。

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