| 激光烧结尼龙12/ 累托石复合材料的结构与性能 |
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| 引用本文： | 汪艳,史玉升,黄树槐.激光烧结尼龙12/ 累托石复合材料的结构与性能[J].复合材料学报,2005,22(2):52-56. |
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| 作者姓名： | 汪艳 史玉升 黄树槐 |
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| 作者单位： | 1. 华中科技大学,塑性成形模拟及模具技术国家重点实验室,武汉,430074;武汉化工学院,材料系,武汉,430073
2. 华中科技大学,塑性成形模拟及模具技术国家重点实验室,武汉,430074 |
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| 摘 要： | 将尼龙12 与有机累托石的混合粉末进行激光烧结成型, 利用X 射线衍射(XRD) 、差示扫描量热分析(DSC) 、扫描电镜(SEM) 等手段对烧结试样的材料结构进行了表征, 并对其力学性能及热性能进行了研究。结果表明: 尼龙12 在激光烧结过程中插入到累托石层间, 形成了尼龙12/ 累托石纳米复合材料。复合材料的力学性能及热稳定性能同尼龙12 烧结试样相比均有不同程度的提高, 有机累托石质量分数为10 %时, 复合材料的拉伸强度、弯曲强度和冲击强度分别提高了10.7 %、15.9 %和38.7 % , 热分解温度提高了27 ℃。
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| 关 键 词： | 选择性激光烧结 累托石 尼龙12 纳米复合材料 |
| 文章编号： | 1000-3851(2005)02-0052-05 |
| 收稿时间： | 2004-05-20 |
| 修稿时间： | 2004-07-01 |
STRUCTURE AND PROPERTIES OF PA12/ RECTORITE COMPOSITEPREPARED BY SELECTIVE LASER SINTERING |
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| WANG Yan,Shi Yusheng,HUANG Shuhuai.STRUCTURE AND PROPERTIES OF PA12/ RECTORITE COMPOSITEPREPARED BY SELECTIVE LASER SINTERING[J].Acta Materiae Compositae Sinica,2005,22(2):52-56. |
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| Authors: | WANG Yan Shi Yusheng HUANG Shuhuai |
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| Affiliation: | 1. State Key Laboratory of Plastic Forming Simulation and Die &|Mould Technology, Huazhong University of Scienceand Technology, Wuhan 430074, China;
2. Department of Materials Science and Engineering, Wuhan Institute of Chemical Technology, Wuhan 430073, China |
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| Abstract: | A kind of blended powder of PA12 and organic rectorite (OREC) was molded by selective laser sintering (SLS) . The st ructure of sintered PA12/ rectorite composite was characterized by XRD , DSC and SEM , and it sthermal stability and mechanical properties were studied. The result s show that the organic rectorite is intercalatedby PA12 during the sintering process , and the thermal stability and the mechanical properties of the PA12/ rectoritenanocomposite are better than those of sintered pure PA12. With 10 % mass f raction of OREC , the tensile st rength ,flexural st rength and impact st rength are improved by 10.7 % , 15.9 % and 38.7 % , respectively , and the thermaldecomposition temperature increases by 27 ℃. |
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| Keywords: | selective laser sintering rectorite PA12 nanocomposite |
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