| 纤维表面处理对芳纶/水泥砂浆复合材料力学性能的影响 |
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| 引用本文： | 胡海涛,李妮,熊杰.纤维表面处理对芳纶/水泥砂浆复合材料力学性能的影响[J].浙江理工大学学报,2011(5). |
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| 作者姓名： | 胡海涛 李妮 熊杰 |
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| 作者单位： | 浙江理工大学先进纺织材料与制备技术教育部重点实验室; |
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| 摘 要： | 为了改善纤维与水泥基材的界面黏结,利用低温等离子技术对芳纶纤维作表面处理,通过场发射扫描电镜(FE-SEM)观察处理前后芳纶纤维表面形貌的变化;采用二步法制备短切芳纶纤维增强水泥砂浆试样,利用万能试验机测试低温等离子处理前后试样的弯曲强度的变化。结果表明:低温等离子处理能够有效地改善芳纶纤维的表面形貌;当处理功率为100 W时,芳纶/水泥砂浆复合材料试样的弯曲强度从8.3 MPa提高到了10.5 MPa,提高了26.4%;当处理时间为20 min时,试样的弯曲强度从8.3 MPa增加到9.7 MPa;继续提高处理功率和延长处理时间,试样的弯曲强度反而下降。
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| 关 键 词： | 芳纶/水泥砂浆复合材料 芳纶纤维 低温等离子 弯曲强度 |
Influence of Surface Modification of Fibers on the Mechanical Properties of Aramid Fiber/Cement Mortar Composite |
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| HU Hai-tao,LI Ni,XIONG Jie ,Ministry of Education,Hangzhou ,China.Influence of Surface Modification of Fibers on the Mechanical Properties of Aramid Fiber/Cement Mortar Composite[J].Journal of Zhejiang Sci-tech University,2011(5). |
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| Authors: | HU Hai-tao LI Ni XIONG Jie Ministry of Education Hangzhou China |
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| Affiliation: | HU Hai-tao,LI Ni,XIONG Jie (The Key Laboratory of Advanced Textile Materials and Manufacturing Technology(Zhejiang Sci-Tech University),Ministry of Education,Hangzhou 310018,China) |
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| Abstract: | In order to improve the interface bond strength with cement,low temperature plasma was used to modificate the surface of aramid fibers.The surface morphology of aramid fiber was observed by field emission scanning electron microscope(FE-SEM).Aramid fiber reinforced cement mortar was prepared by two-step dispersions of aramid fibers.With the aid of universal testing machine,the bending strength was researched.Results showed that the low temperature plasma could effectively improve the aramid fiber's surface ... |
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| Keywords: | aramid/cement mortar composites aramid fiber low temperature plasma bending strength |
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