| 三螺杆动态塑化混炼加工PP/硅灰石力学性能及界面的研究 |
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| 引用本文： | 何和智,付金修,陈哲,方望来.三螺杆动态塑化混炼加工PP/硅灰石力学性能及界面的研究[J].中国塑料,2008(11). |
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| 作者姓名： | 何和智 付金修 陈哲 方望来 |
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| 作者单位： | 华南理工大学聚合物新型成型装备国家工程研究中心聚合物成型加工工程教育部重点实验室; |
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| 基金项目： | 国家863项目(2002AA333100) |
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| 摘 要： | 硅灰石填充 PP 经三螺杆动态塑化混炼加工后,将粒料制成试样并进行力学性能测试和扫描电镜断面分析。实验研究了不同振动参数对 PP/硅灰石力学性能和断面微观结构的影响。结果表明,与稳态相比,动态(引入振动)加工条件下试样的冲击强度、拉伸强度、断裂伸长率和弯曲强度均有显著提高,最大分别提高了10.7%、10.2%、51.3%和18.6%;对在振动频率 f=10 Hz、振幅 A=105 μm动态塑化混炼加工条件下试样的扫描电镜断面分析表明,PP/硅灰石材料中硅灰石的粒径变小并趋于一致,分散分布均一,与 PP 结合界面得到加强。
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| 关 键 词： | 三螺杆挤出机 动态塑化混炼 硅灰石 聚丙烯 力学性能 |
Mechanical Properties and Interface Research of Polypropylene/Wollastonite Plasticized and Mixed by Dynamic Tri-screw Extruder |
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| HE He-zhi FU Jin-xiu CHEN Zhe FANG Wang-lai.Mechanical Properties and Interface Research of Polypropylene/Wollastonite Plasticized and Mixed by Dynamic Tri-screw Extruder[J].China Plastics,2008(11). |
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| Authors: | HE He-zhi FU Jin-xiu CHEN Zhe FANG Wang-lai |
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| Affiliation: | The National Engineering Research Center of Novel Equipment for Polymer Processing;the Key Laboratory of Polymer Processing Engineering of Ministry of Education;South China University of Technology;Guangzhou 510640;China |
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| Abstract: | Wollastonite filled PP was studied in this work.The mechanical properties and SEM morphology of PP/Wollastonite blends were determined after being extruded by a dynamic tri-screw extruder. The effect of different dynamic parameters on the mechanical properties and the section microstructure were investigated.Compared with those based on steady condition,impact strength,tension strength,elongation ratio at break,and flex strength of the samples improved remarkably under dynamic working condition,the maximum ... |
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| Keywords: | tri-screw extruder dynamic plasticization wollastonite polypropylene mechanical property |
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