| HDPE/r-PET原位微纤物微观形态与力学性能 |
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| 引用本文： | 刘伟东,王益龙,杨博瀚,吕悦. HDPE/r-PET原位微纤物微观形态与力学性能[J]. 现代塑料加工应用, 2011, 23(5): 1-4 |
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| 作者姓名： | 刘伟东 王益龙 杨博瀚 吕悦 |
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| 作者单位： | 大连理工大学化工学院高分子材料系,辽宁大连,116024 |
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| 摘 要： | 以高密度聚乙烯(HDPE)和回收聚对苯二甲酸乙二醇酯(r-PET)为原料,通过反应挤出、冷拉伸、退火工艺制备了HDPE/r-PET原位微纤物。研究了扫描电镜(SEM)的制样方法即用液氮冷冻、脆断样品、聚四氟乙烯带包覆、在沸腾的二甲苯中刻蚀7～10min和不同r-PET用量、不同拉伸比制备出的系列HDPE/r-PET原位微纤物的力学性能。结果表明,通过SEM可清晰地看到形成的微纤,原位微纤物的拉伸强度和冲击强度都随拉伸比的增大而增大;r-PET质量分数为15%时,原位微纤物的拉伸强度和无缺口冲击强度达到最大值;HDPE/r-PET原位微纤物的适宜注塑温度为210℃。
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| 关 键 词： | 回收聚对苯二甲酸乙二醇酯 聚乙烯 原位微纤 扫描电镜 力学性能 |
Micromorphology and Mechanical Properties of HDPE/r-PET In-Situ Microfibrillar Blends |
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| Liu Weidong,Wang Yilong,Yang Bohan,Lv Yue. Micromorphology and Mechanical Properties of HDPE/r-PET In-Situ Microfibrillar Blends[J]. Modern Plastics Processing and Applications, 2011, 23(5): 1-4 |
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| Authors: | Liu Weidong Wang Yilong Yang Bohan Lv Yue |
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| Affiliation: | Liu Weidong Wang Yilong Yang Bohan Lv Yue (Dept.of Polymer Materials,Dalian University of Technology,Dalian,Liaoning,116024) |
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| Abstract: | High density polyethylene(HDPE)/recycled poly(ethylene terephthalate) (r-PET) in-situ microfibrillar blends based on HDPE/r-PET were prepared by HDPE and r-PET as raw material through reactive extrusion-cold drawing and annealing.The preparing sample methed for scanning electron microscopy(SEM) was studied in detail, namely,the brittle samples frozen in liquid nitrogen,coated with Teflon tape and etched in boiling xylene for 7~10 minutes.The mechanical properties of a series of HDPE/r-PET in-situ microfibri... |
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| Keywords: | recycled poly(ethylene terephthalate) high density polyethylene in-situ microfibrillar blends scanning electron microscopy mechanical property |
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