Toughening of Polypropylene Random Copolymer by β-Modification

LI Mei; ZHANG Zishou; TAN Yunhong; DAI Xin; LI Gu; MAI Kancheng

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Toughening of Polypropylene Random Copolymer by β-Modification

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- Toughening of Polypropylene Random Copolymer by β-Modification
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 54, Issue 5, Pages: 62-66(2015)
- 作者机构：
  
  中山大学化学与化学工程学院材料科学研究所∥聚合物基复合材料及功能材料教育部重点实验室∥广东省高性能树脂基复合材料重点实验室,广东,广州,510275
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：25 September 2015，
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LI Mei, ZHANG Zishou, TAN Yunhong, et al. Toughening of Polypropylene Random Copolymer by β-Modification. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 54(5):62-66(2015)
DOI：

LI Mei, ZHANG Zishou, TAN Yunhong, et al. Toughening of Polypropylene Random Copolymer by β-Modification. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 54(5):62-66(2015) DOI：

摘要

为提高无规共聚聚丙烯（PPR）冲击强度，制备了庚二酸钙成核PPR和纳米碳酸钙与负载庚二酸钙的纳米碳酸钙填充PPR，采用力学性能测试方法、DSC、XRD和SEM对比研究了其力学性能、结晶性能和β-晶含量。讨论了庚二酸钙和纳米碳酸钙及其负载庚二酸钙的纳米碳酸钙对PPR冲击强度、断裂伸长率、结晶温度和β-晶含量的影响，指出采用负载型β-成核剂是提高PPR韧性的有效方法。

Abstract

In order to improve the impact strength of polypropylene random copolymer (PPR)

the calcium pimelate nucleated PPR

nano-CaCO

and calcium pimelatesupported CaCO

filled PPR were prepared.Their mechanical properties

crystallization behavior and the content of β-modification were studied using mechanical testing

differential scanning calorimetry

wide-angle X-ray diffraction and scanning electron microscopy. The effect of calcium pimelate

nanoCaCO

and calcium pimelate-supported CaCO

on the impact strength

elongation at break

crystallization temperature and β-modification contents of PPR were investigated. The result indicated that using supported β-nucleating agent was an efficient method to increase the β-modification contents and improve the toughness of PPR.

关键词

β-成核无规共聚聚丙烯力学性能结晶与熔融

Keywords

β-modification polypropylene random copolymermechanical propertiescrystallization and melting

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Related Author

ZHONG Zhiqin

LU Hui

SU Weiguo

HU Lingling

WANG Chunguang

MAI Kancheng

WU Lijun

DU Yifei

Related Institution

Department of Applied Mechanics & Engineering, Sun Yatsen University,Guangzhou

School of Civil Engineering and Transportation, South China University of Technology



Guangzhou Highway Development Corporation

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