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Abstract

Objective: In order to explore the distribution law of the flow channel of polylactic acid in different screw contact states of the counter-rotating twin-screw extruder. Methods: Partially meshing screw and non-meshing screw were established by Solidworks software. Numerical sim-ulation was carried out using POLYFLOW fluid simulation software. The pressure field, shear rate field and viscosity field of polylactic acid fluid under different contact states of three screws were compared. Results: The counter-rotating twin-screw extruder in the partially meshed state has better pressure-building ability and dispersing and mixing ability for polylactic acid. Conclusion: The extrusion effect of polylactic acid in the partially meshed state is better than the other two screw contact states.

Publication Date

6-30-2022

First Page

61

Last Page

64

DOI

10.13652/j.spjx.1003.5788.2022.90125

References

[1] 黄晶晶,赵英虎,高莉,等.天然物质改性聚乳酸研究进展[J].功能材料,2021,52(3):3 075-3 080.HUANG Jing-jing,ZHAO Ying-hu,GAO Li,et al.Research progress of polylactic acid modified by natural substances[J].Journal of Functional Materials,2021,52(3):3 075-3 080.
[2] 耿孝正.双螺杆挤出机及其应用[M].北京:中国轻工业出版社,2003:167-168.GENG Xiao-zheng.Twin-screw extruder and its application[M].Beijing:China Light Industry Press,2003:167-168.
[3] 胥伟伟,马秀清,王小武,等.螺杆构型对PP/PA6共混物性能和相态结构的影响[J].中国塑料,2009,23(8):95-100.XU Wei-wei,MA Xiu-qing,WANG Xiao-wu,et al.Effect of screw configuration on mechanical properties and phase morphology of PP/PA6 blends[J].China Plastics,2009,23(8):95-100.
[4] 周晔,罗付洪,任杰.熔融共混立构复合聚乳酸的制备及其性能研究[J].塑料工业,2020,48(2):164-169.ZHOU Ye,LUO Fu-hong,REN Jie.Preparation and properties of melt blend stereo composite polylactic acid[J].China Plastics Industry,2020,48(2):164-169.
[5] HONG M H,WHITE J L.Simulation of flow in an intermeshing modular counter-rotating twin screw extruder:Non-Newtonian and non-isothermal behavior[J].International Polymer Processing Journal of the Polymer Processing Society,1999,14(2):136-143.
[6] 张宏建,黄志刚,李梦林,等.啮合同向双螺杆挤出机不同螺杆流场仿真分析[J].工程塑料应用,2016,44(9):70-74.ZHANG Hong-jian,HUANG Zhi-gang,LI Meng-lin,et al.Intermeshing co-rotating twin-screw extruder with different screw of flow field simulation analysis[J].Engineering Plastics Application,2016,44(9):70-74.
[7] 王少峰,张媛,刘美莲,等.不同温度状态下啮合异向双螺杆挤出机的流道分布规律[J].食品与机械,2018,34(10):71-74.WANG Shao-feng,ZHANG Yuan,LIU Mei-lian,et al.Flow pattern distribution of meshing counter rotating twin screw extruders at different temperatures[J].Food & Machinery,2018,34(10):71-74.
[8] 马秀清,林群章,李晓卫.捏合块元件混合含能材料的安全性分析[J].塑料,2019,48(1):88-91.MA Xiu-qing,LIN Qun-zhang,LI Xiao-wei.Safety analysis of kneading block elements mixed energetic materials[J].Plastics,2019,48(1):88-91.
[9] 张磊,薛凯,李海明.同向双螺杆挤出机下落机头的流道设计[J].橡塑技术与装备,2021,47(12):51-53.ZHANG Lei,XUE Kai,LI Hai-ming.Runner design of drop head of co-rotating twin screw extruder[J].China Rubber/and Plastics Technology and Equipment,2021,47(12):51-53.
[10] 蒋卫鑫,黄志刚,赵玉莲,等.基于Polyflow田字形网格食品托盘挤出成型分析[J].食品与机械,2017,33(12):86-90.JIANG Wei-xin,HUANG Zhi-gang,ZHAO Yu-lian,et al.Extrusion analysis of Tianzi-shaped tray of food based on Polyflow[J].Food & Machinery,2017,33(12):86-90.
[11] 黄志刚,蒋卫鑫,李鑫,等.啮合异向双螺杆挤出机仿真研究[J].包装学报,2019,11(3):9-15.HUANG Zhi-gang,JIANG Wei-xin,LI Xin,et al.Simulation study of meshing counter-rotating twin-screw extruder[J].Packaging Journal,2019,11(3):9-15.
[12] 安琪,黄志刚,胡淑珍,等.适应性网格技术在异向双螺杆挤出机中的仿真[J].食品与机械,2021,37(4):91-97.AN Qi,HUANG Zhi-gang,HU Shu-zhen,et al.Simulation in counter-rotating twin screw extruder by adaptive grid technology[J].Food & Machinery,2021,37(4):91-97.
[13] FORMELA K,CYSEWSKA M.Efficiency of thermomechanical reclaiming of ground tire rubber conducted in counter-rotating and co-rotating twin screw extruder[J].Polimery,2014,59(3):231-238.
[14] 施丰,马秀清,耿孝正.啮合异向双螺杆挤出过程熔体输送段常规螺纹元件3D流场分析[J].中国塑料,2002,16(5):82-87.SHI Feng,MA Xiu-qing,GENG Xiao-zheng.3D flow field analysis of common flight elements in counter-rotating twin screw extrusion[J].China Plastics,2002,16(5):82-87.
[15] 陈龙,董力群,张亚军,等.基于SolidWorks API的异向双螺杆的参数化设计[J].中国塑料,2018,32(1):120-124.CHEN Long,DONG Li-qun,ZHANG Ya-jun,et al.Parametrical design of counter-rotating twin-screws based on SolidWorks API[J].China Plastics,2018,32(1):120-124.

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