两步法制备剥离型聚丙烯/蒙脱土纳米复合材料（Ⅱ）熔融行为及流变性能

史铁钧; 吴德峰; 王华林; 徐鼐; 周亚斌

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两步法制备剥离型聚丙烯/蒙脱土纳米复合材料（Ⅱ）熔融行为及流变性能

材料科学与工程 | 更新时间：2025-12-10

- 两步法制备剥离型聚丙烯/蒙脱土纳米复合材料（Ⅱ）熔融行为及流变性能
- Preparation of exfoliated polypropylene/montmorillonite nanocomposites by two-step method(Ⅱ)Melt behavior and rheological properties
- 化工学报 2005年第9期页码：1800-1804
- 作者机构：
  
  合肥工业大学化工学院,安徽,合肥,230009
- 作者简介：
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- 网络首发：2005-09-25，
  
  纸质出版：2005-09-25
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史铁钧, 吴德峰, 王华林, 等. 两步法制备剥离型聚丙烯/蒙脱土纳米复合材料（Ⅱ）熔融行为及流变性能[J]. 化工学报, 2005,(9):1800-1804.

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.
史铁钧, 吴德峰, 王华林, 等. 两步法制备剥离型聚丙烯/蒙脱土纳米复合材料（Ⅱ）熔融行为及流变性能[J]. 化工学报, 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.

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