Effect of Nano SiO<sub>2</sub> on Phase Structure and Properties of Impact Polypropylene Copolymer Resin

Song-he Wang; Jin-mei Lai; Yue Ru; Hong-bin Zhang; Xiao-hong Zhang; Jin-liang Qiao

doi:10.11777/j.issn1000-3304.2017.16299

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Effect of Nano SiO₂ on Phase Structure and Properties of Impact Polypropylene Copolymer Resin

Research Article | 更新时间：2021-01-26

- Effect of Nano SiO₂ on Phase Structure and Properties of Impact Polypropylene Copolymer Resin
- Acta Polymerica Sinica Issue 7, Pages: 1097-1104(2017)
- 作者机构：
  
  中国石油化工股份有限公司北京化工研究院北京 100013
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2017.16299
  CLC：
- Published：2017-7，
  
  Received：25 September 2016，
  
  Revised：31 October 2016，
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Song-he Wang, Jin-mei Lai, Yue Ru, Hong-bin Zhang, Xiao-hong Zhang, Jin-liang Qiao. Effect of Nano SiO₂ on Phase Structure and Properties of Impact Polypropylene Copolymer Resin. [J]. Acta Polymerica Sinica (7):1097-1104(2017)
DOI：

Song-he Wang, Jin-mei Lai, Yue Ru, Hong-bin Zhang, Xiao-hong Zhang, Jin-liang Qiao. Effect of Nano SiO₂ on Phase Structure and Properties of Impact Polypropylene Copolymer Resin. [J]. Acta Polymerica Sinica (7):1097-1104(2017) DOI： 10.11777/j.issn1000-3304.2017.16299.

摘要

提出一种使高抗冲聚丙烯树脂的韧性和刚性同时得到提高的新方法.以亲油性纳米SiO

改性高抗冲聚丙烯树脂，发现少量纳米SiO

可显著降低高抗冲聚丙烯树脂中乙丙橡胶相的粒径和聚丙烯相的球晶尺寸，进而使高抗冲聚丙烯的常温韧性、低温韧性、刚性和耐热性同时得到提高.研究还发现，结晶成核剂和纳米SiO

有协同效应，可使高抗冲聚丙烯的综合性能进一步得到提高.

Abstract

A new method is reported in this paper that the toughness

stiffness and heat resistance of impact polypropylene copolymer (IPC) resin could be increased simultaneously by adding a small amount of hydrophobic nano-SiO

. According to the results of scanning electron microscopy (SEM) and polarized optical microscopy (POM)

a small amount of nano-SiO

can significantly reduce both the particle size of ethylene-propylene rubber and the spherulite size of polypropylene matrix in IPC; therefore

the stiffness

the heat resistance and the toughness of IPC at room temperature and low temperature can be improved simultaneously. Energy dispersive spectroscopy (EDS) results of the composite material indicate that the nano-SiO

particles are distributed uniformly in IPC resin. Tested in accordance with ASTM standard

the new composite material prepared in this new way shows that the flexural modulus and heat distortion temperature of IPC/nano-SiO

composite can gain a monotonical increase as much as 8% and 9.6%. It is also found that the nano-SiO

and the nucleating agent have synergy effect on IPC modification. When the content of nanoparticles reaches 0.7%

the impact strength gets an increase of 16.5%

the best performance among all samples. The particle sizes of ethylene-propylene rubber and spherulite size of polypropylene matrix in IPC are further reduced when nano-SiO

and nucleating agent are added into IPC together

which improve further the properties of IPC. The flexural modulus

flexural strength

Izod notched impact strength and heat distortion temperature of IPC are increased by 18%

15%

10% and 20% when 0.7% of SiO

and 0.3% of nucleating agent VP-101B are added into IPC resin. The experimental results show that

to modify IPC

use of the nano-particles and the nucleating agent together is a promising method to produce high performance IPC with high toughness

high stiffness and high heat resistance.

关键词

纳米SiO2高抗冲聚丙烯结构性能成核剂

Keywords

Nano SiO2Impact polypropylene copolymerStructurePropertyNucleating agent

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Related Institution

School of Materials Science and Engineering, Central South University

Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Central South University

State Grid Hunan Electric Power Company Charged Operations Center

Department of Chemistry, Engineering Research Center of Supper Plastic, Ministry of Education, Jilin University

华南理工大学材料科学与工程学院

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⁰

Effect of Nano SiO2 on Phase Structure and Properties of Impact Polypropylene Copolymer Resin

DOI：10.11777/j.issn1000-3304.2017.16299

摘要

Abstract

关键词

Keywords

references

Effect of Nano SiO₂ on Phase Structure and Properties of Impact Polypropylene Copolymer Resin