| 聚苯乙烯/聚酰胺-12合金的选择性激光烧结成形 |
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| 引用本文： | 章文献,闫春泽,史玉升,杨劲松.聚苯乙烯/聚酰胺-12合金的选择性激光烧结成形[J].高分子材料科学与工程,2009(7). |
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| 作者姓名： | 章文献 闫春泽 史玉升 杨劲松 |
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| 作者单位： | 华中科技大学材料成形与模具技术国家重点实验室; |
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| 基金项目： | 国家科技型中小企业创新基金(05C262142011059); 聚合物成形加工工程教育部重点实验室开放课题资金(20061006) |
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| 摘 要： | 在选择性激光烧结(SLS)成形中,聚苯乙烯(PS)成形件精度高但其力学性能差,而聚酰胺-12(PA12)成形件力学性能高但其尺寸精度较差。为此,通过添加增容剂合成了PS/PA12合金粉末并用于SLS成形,研究了PS/PA12合金、PS及PA12成形件的力学性能、精度及断口微观形貌。结果表明,PS/PA12合金成形件的拉伸强度、断裂伸长率、冲击强度、弯曲强度及弯曲模量分别是PS成形件的4.72倍、1.94倍、4.92倍、4.57倍及1.37倍;PS/PA12合金粉末成形件在x、y及z方向的尺寸误差比PA12分别降低了46.9%,47.3%及20.3%。说明PS/PA12合金粉末成形件兼顾了PS成形件精度高及PA12成形件力学性能好的优点,具有较高的推广使用价值。
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| 关 键 词： | 选择性激光烧结 聚苯乙烯 聚酰胺-12 合金 增容剂 |
Selective Laser Sintering of Polystyrene/Nylon-12 Alloy |
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| ZHANG Wen-xian,YAN Chun-ze,SHI Yu-sheng,YANG Jin-song.Selective Laser Sintering of Polystyrene/Nylon-12 Alloy[J].Polymer Materials Science & Engineering,2009(7). |
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| Authors: | ZHANG Wen-xian YAN Chun-ze SHI Yu-sheng YANG Jin-song |
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| Affiliation: | ZHANG Wen-xian,YAN Chun-ze,SHI Yu-sheng,YANG Jin-song(State Key Laboratory of Materials Processing and Die & Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | With the selective laser sintering(SLS) technology,the polystyrene(PS) parts can be made with high dimensional precisions and low mechanical properties,whereas the polyamide-12(PA12) parts possess higher mechanical properties and lower accuracies,compared with the PA ones.For high properties and accuracies,the PS/PA12 alloy powder was prepared.To evaluate the mechanical properties,dimensional precisions,and fractographs's features,the SLS specimens were made from PS,PA12 and PS/PA12 alloy powders,respective... |
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| Keywords: | selective laser sintering polystyrene nylon 12 alloy compatibilizer |
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