HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE  EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES

Kun Jiang; Fei-long Yu; Run Su; Jing-hui Yang; Tian-nan Zhou; Jian Gao; Hua Deng; Ke Wang; Qin Zhang; Feng Chen; Qiang Fu

doi:10.1007/s10118-011-1049-3

Your Location：

Home >

Browse articles >

HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES

PAPER | Updated：2021-06-21

- HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES
- HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE —EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES
- Chinese Journal of Polymer Science 2011年29卷第4期页码：456-464
- Affiliations：
  
  College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  **Hua Deng (邓华), E-mail: huadeng@scu.edu.cn
  Qiang Fu (傅强), E-mail: qiangfu@scu.edu.cn
- Funds：
  
  financially supported by the National Natural Science Foundation of China(51073111)
- DOI：10.1007/s10118-011-1049-3
  中图分类号：
- 收稿：2010-05-26，
  
  修回：2010-08-23，
  
  录用：2010-08-31，
  
  纸质出版：2011
- Accepted：
Scan QR Code
Kun Jiang, Fei-long Yu, Run Su, 等. HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES[J]. Chinese Journal of Polymer Science, 2011,29(4):456-464.

Kun Jiang, Fei-long Yu, Run Su, et al. HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE —EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES[J]. Chinese Journal of Polymer Science, 2011, 29(4): 456-464.
Kun Jiang, Fei-long Yu, Run Su, 等. HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES[J]. Chinese Journal of Polymer Science, 2011,29(4):456-464. DOI： 10.1007/s10118-011-1049-3.

Kun Jiang, Fei-long Yu, Run Su, et al. HIGH SPEED INJECTION MOLDING OF HIGH DENSITY POLYETHYLENE —EFFECTS OF INJECTION SPEED ON STRUCTURE AND PROPERTIES[J]. Chinese Journal of Polymer Science, 2011, 29(4): 456-464. DOI： 10.1007/s10118-011-1049-3.

摘要

Abstract

Thin wall samples of high density polyethylene (HDPE) were prepared

via

injection molding with different injection speeds ranging from 100 mm/s to 1200 mm/s. A significant decrease in the tensile strength and Young’s modulus was observed with increasing injection speed. In order to investigate the mechanism behind this decrease

the orientation

molecular weight

molecular weight distribution

melt flow rate

crystallinity and crystal morphology of HDPE were characterized using two-dimensional wide-angle X-ray diffraction (2D-WAXD)

gel permeation chromatography (GPC)

capillary rheometry and differential scanning calorimetry (DSC)

respectively. It is demonstrated that the orientation

molecular weight

molecular weight distribution

melt flow rate and crystallinity have no obvious change with increasing injection speed. Nevertheless

the content of extended chain crystals or large folded chain crystals was found to decrease with increasing injection speed. Therefore

it is concluded that the decrease in tensile properties is mainly contributed by the reduced content of extended chain crystals or large folded chain crystals. This study provides industry with valuable information for the application of high speed injection molding.

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

All Polyethylene Compositions Based on Ultrahigh Molecular Weight Polyethylene Synthesized over Binary Catalyst including Zirconocenes of Various Designs

Electrically Conductive and Flame Retardant Graphene/Brominated Polystyrene/Maleic Anhydride Grafted High Density Polyethylene Nanocomposites with Satisfactory Mechanical Properties

Preparation and Characterization of Flame Retardant and Low Smoke Releasing Oil-resistant EVA/NBR Blends

Advances in Polymer-based Circularly Polarized Luminescent Materials

Durable Anti-fogging and Abrasion-resistant Coatings Based on Polyoxometalates-Hydrophilic Resin Composites with Enhanced Cohesion and Adhesion