Paper Titles

Theoretical Investigation of the Shubnikov-de Haas Magnetoresistance Oscillations in a Quantum well under the Influence of Confined Acoustic Phonons
p.1

In Situ Reactive Interfacial Compatibilization of Poly(Ethylene Terephthalate)/Metallocene Polyethylene Blends
p.12

Preparation, Mechanical and Thermal Properties of PLA/PBAT/EGMA Blends
p.18

A Study on the Fracture Mechanics of Support Structure of Excavation Puddle by LPG Explosion Using AUTODYN
p.23

Blown Film of m-LLDPE Using a Novel Eccentric Rotor Extruder
p.28

SO₂ Removal by Powder Activated Carbon in a Drop Tube Furnace Experimental System
p.34

Material Modelling in Multi-Physics FEM Simulation
p.41

The Effects of Geosynthetic-Reinforcement on Consolidation Behavior of Soft Clay Embankment under Step Construction
p.46

Study on the Morphology, Mechanical, Thermal Stability Properties of Poly(Lactic-Acid)/Poly(Ether-Block-Amide) Blends Prepared by Triple-Single Screw Extruder
p.51

HomeKey Engineering MaterialsKey Engineering Materials Vol. 783Blown Film of m-LLDPE Using a Novel Eccentric...

Blown Film of m-LLDPE Using a Novel Eccentric Rotor Extruder

Article Preview

Abstract:

Metallocene linear low-density polyethylene (m-LLDPE) has superior physical and mechanical properties. While, the film blowing processability of m-LLDPE was very poor when processed under shear flow. To overcome this drawback, a novel device based on elongational flow was self-developed to process m-LLDPE. In order to investigate the effect of elongational flow on the processability improvement of m-LLDPE, five types PE were studied in this paper. All kinds of PE were prepared using this novel device and traditional single-screw extruder with molecular weight and its distribution, mechanical properties and WAXD characterization. Gel Pemeation Chromotographer (GPC) data shows that molecular weight of each resin prepared using this novel eccentric rotor extruder (ERE) is higher than that processed by traditional single screw extruder (SSE). Mechanical properties showed that tensile properties of all kinds of films blowing from ERE is better than the one from SSE. However, tear properties of m-LLDPE films made from ERE differ from LDPE or LLDPE. And had a relative low value than the one made from SSE. In addition, Wide-angle X-ray Diffraction (WAXD) results indicate that films blowing from ERE exist a partially ordered component in addition to the usual crystalline and amorphous components which can’t be achieved from SSE.

You might also be interested in these eBooks

International Conference on Material Science and Engineering III

Info:

Periodical:

Key Engineering Materials (Volume 783)

Pages:

28-33

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.783.28

Citation:

Cite this paper

Online since:

October 2018

Authors:

He Zhi He, Shi Ming Liu, Lan Ya Cheng, Yi Ping Ni, Feng Xue, Bin Xue, Zhao Xia Huang, Zhi Wen Zhu, Bi Da Liu*, Qing-Hua Chen, Deng-Long Chen

Keywords:

Eccentric Rotor Extruder, GPC, Mechanical Properties, m-LLDPE, Processing

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2018 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] J. Scheirs, W. Kaminsky, Metallocene-Based polyolefins, Wiley, New York. (2000).

[2] Yan, D; Wang, WJ; Zhu, S. Effect of long chain branching on rheological properties of metallocene polyethylene, Polymer. 40 (1999) 1737-1744.

DOI: 10.1016/s0032-3861(98)00318-8

[3] Ahn, TO; Hong, SC; Huh, WS. et.al. Modification of a Ziegler-Natta catalyst with a metallocene catalyst and its olefin polymerization behavior, Polymer engineering and science. 39(1999): 1257-1264.

DOI: 10.1002/pen.11513

[4] Norris, FG; Edward JD; John, KF. Eur pat appl, EP0770629. (1997).

[5] Cran, MJ; Bigger, SW. The effect of metallocene-catalyzed linear low-density polyethylene on the physicomechanical properties of its film blends with low-density polyethylene, Journal of materials science. 40(2005): 621-627.

DOI: 10.1007/s10853-005-6299-4

[6] Marlene J; Cran; Bigger SW. Effect of Metallocene-Catalyzed Polyethylene on the Physicomechanical Properties of Blends with High-Density Polyethylene or Low-Density Polyethylene, Plastics technology and engineering, 3(2009): 272-279.

DOI: 10.1080/03602550802675538

[7] M. Knights, Close up on processing metallocene resins, Plast. Technol. 42 (1996) 49-51.

[8] N. Q. Zhou, P. Zhang, H. W. Wu, An Electromagnetic Dynamic Film Blowing Technology for mLLDPE, J. Appl. Polym. Sci. 101 (2006) 83-89.

DOI: 10.1002/app.23310

[9] J. P. Qu. CN Pat appl, 200810026054, (2008).

[10] G. Z. Zhang, T. Wu, W. Y. Lin, Preparation of polymer/clay nanocomposites via melt intercalation under continuous elongation flow, Comp. Sci. Technol. 145 (2017) 157-164.

DOI: 10.1016/j.compscitech.2017.04.005

[11] F. Sadeghi, A. Ajji, P. J. Carreau, Study of Polypropylene Morphology Obtained from Blown and Cast Film Processes: Initial Morphology Requirements for Making Porous Membrane by Stretching, J. Plast. Film Sheet. 21 (2005) 199.

DOI: 10.1177/8756087905057085

[12] J. P. Qu, Z. T. Yang, G. Z. Zhang. Advance in Rheology Research in China. (2010).

[13] X. M, Zhang, S. Elkoun, A. Ajji, Oriented structure and anisotropy properties of polymer blown films: HDPE, LLDPE and LDPE, Polymer. 45 (2004) 217-229.

DOI: 10.1016/j.polymer.2003.10.057

[14] N. Borse, N. Aubee, P. Tas, Enhancement in tear properties of single-site catalyzed LLDPE blown films at higher draw-down. In Proceedings of the 26TH Polymer Processing Society Annual Meeting. Banff-canada: Polymer Processing Society.

[15] A. M. E. Baker, A. H. Windle, Evidence for a partially ordered component in polyethylene from wide-angle X-ray diffraction, Polymer. 42 (2001) 667-680.

DOI: 10.1016/s0032-3861(00)00364-5