Preparation of exfoliated polypropylene/montmorillonite nanocomposites by two-step method(Ⅱ)Melt behavior and rheological properties

SHI Tiejun; WU Defeng; WANG Hualin; XU Nai; ZHOU Yabin

您当前的位置：

首页 >

文章列表页 >

Preparation of exfoliated polypropylene/montmorillonite nanocomposites by two-step method(Ⅱ)Melt behavior and rheological properties

更新时间：2025-12-10

- Preparation of exfoliated polypropylene/montmorillonite nanocomposites by two-step method(Ⅱ)Melt behavior and rheological properties
- CIESC Journal Issue 9, Pages: 1800-1804(2005)
- 作者机构：
  
  合肥工业大学化工学院,安徽,合肥,230009
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 2005，
  
  Published：25 September 2005
- 稿件说明：
移动端阅览
SHI Tiejun, WU Defeng, WANG Hualin, et al. Preparation of exfoliated polypropylene/montmorillonite nanocomposites by two-step method(Ⅱ)Melt behavior and rheological properties[J]. CIESC Journal, 2005, (9): 1800-1804.
DOI：

SHI Tiejun, WU Defeng, WANG Hualin, et al. Preparation of exfoliated polypropylene/montmorillonite nanocomposites by two-step method(Ⅱ)Melt behavior and rheological properties[J]. CIESC Journal, 2005, (9): 1800-1804. DOI：

摘要

采用DSC及XRD研究了聚丙烯/蒙脱土纳米复合材料(PMN)的结晶熔融行为.DSC的结果表明，复合材料熔点升高，但相对结晶度下降.XRD结果表明，蒙脱土作为成核剂促进了聚丙烯β晶型的生成;同时β晶型的增长抑制了α晶体的长大，减小了α晶粒尺寸，提高了复合材料的力学性能.系统研究了复合材料的流变性能，探讨了蒙脱土含量、温度、剪切速率等因素对复合材料黏度特性的影响，结果表明，复合体系总体上呈现剪切变稀的特性，体系表观剪切黏度随蒙脱土含量的升高逐渐下降，材料加工性能优于聚丙烯基体.

Abstract

The crystallization and melt behavior of polypropylene/montmorillonite nanocomposites (PMN) were investigated with DSC and XRD.The results showed that PMN presented higher melt point but lower relative crystallinity compared with that of pure PP.Moreover

more β crystal was found in PMN due to the existence of MMT as nucleation agent.At the same time

the appearance of β crystal restrained the growth of α crystal

decreasing its dimension.The effects of different contents

temperatures and shear speeds upon the shear viscosity of PMN were studied.The results showed that the system exhibited shear-thinning non-Newtonian behavior.As the content of MMT increased

the viscosity of the system decreased apparently.The processibility of PMN became better than pure PP.

关键词

Keywords

references

Views

249

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Structure and properties of PP/OMMT nanocomposites

PREPARATION OF EXFOLIATED POLYPROPYLENE/MONTMORILLONITE NANOCOMPOSITES BY TWO-STEP METHOD (Ⅰ)PREPARATION, CHARACTERATION AND MECHANICAL PROPERTIES

Properties of non-metallic powder recycled from paper-based printed circuit boards and performance of composites

Property and microstructure of ABS composite modified with salt sulfate whisker

Preparation of nano Fe/SiO2 core-shell composite particles from copper/iron ore cinder and their microwave absorption properties

Related Author

LIANG Yurong

TAN Yingjie

WANG Xinjie

GUO Yuwen

ZHANG Jianqiang

LIU Jingyang

QIAO Qi

周健

Related Institution

太原工业学院材料工程系

西南交通大学环境科学与工程学院

中国环境科学研究院

江苏技术师范学院应用材料研究所

湖北祥云集团股份有限公司

⁰